#  @teded TED-Ed TED-Ed posts on YouTube about education, history, science, ted the most. They currently have [----------] followers and [----] posts still getting attention that total [-------] engagements in the last [--] hours. ### Engagements: [-------] [#](/creator/youtube::UCsooa4yRKGN_zEE8iknghZA/interactions)  - [--] Week [---------] +4% - [--] Month [----------] +15% - [--] Months [-----------] +28% - [--] Year [-----------] +87% ### Mentions: [---] [#](/creator/youtube::UCsooa4yRKGN_zEE8iknghZA/posts_active)  - [--] Week [-----] +6.90% - [--] Month [-----] +5.20% - [--] Months [-----] +10% - [--] Year [-----] +74% ### Followers: [----------] [#](/creator/youtube::UCsooa4yRKGN_zEE8iknghZA/followers)  - [--] Week [----------] no change - [--] Month [----------] +0.45% - [--] Months [----------] +2.80% - [--] Year [----------] +6.20% ### CreatorRank: [------] [#](/creator/youtube::UCsooa4yRKGN_zEE8iknghZA/influencer_rank)  ### Social Influence **Social category influence** [countries](/list/countries) 16.16% [travel destinations](/list/travel-destinations) 7.38% [finance](/list/finance) #5425 [technology brands](/list/technology-brands) 1.89% [social networks](/list/social-networks) 1.15% [stocks](/list/stocks) 0.98% [celebrities](/list/celebrities) 0.98% [automotive brands](/list/automotive-brands) 0.82% [musicians](/list/musicians) 0.57% [luxury brands](/list/luxury-brands) 0.25% **Social topic influence** [education](/topic/education) #187, [history](/topic/history) #704, [science](/topic/science) #360, [ted](/topic/ted) #7, [health](/topic/health) #358, [in the](/topic/in-the) #4679, [how to](/topic/how-to) #3490, [the world](/topic/the-world) #1795, [can you](/topic/can-you) #396, [solve](/topic/solve) #116 **Top accounts mentioned or mentioned by** [@vibeattractor](/creator/undefined) [@breland](/creator/undefined) [@gracebowers](/creator/undefined) [@voguesfashionvault](/creator/undefined) [@info](/creator/undefined) [@tonysuccar](/creator/undefined) [@godmoneycode](/creator/undefined) [@thehiddenpast987](/creator/undefined) [@ucuvfxz23tf6dadwjyrduw](/creator/undefined) [@oceanx](/creator/undefined) [@bonniemckeeofficial](/creator/undefined) [@taylaparx](/creator/undefined) [@davidarchie](/creator/undefined) [@immerseeducation](/creator/undefined) [@nunesbobby](/creator/undefined) [@astrowala](/creator/undefined) [@mathsphysicslovers](/creator/undefined) [@iamsahil_02](/creator/undefined) [@learningjunction](/creator/undefined) [@ilknuuuracar](/creator/undefined) ### Top Social Posts Top posts by engagements in the last [--] hours "The myth of Jason Medea and the Golden Fleece - Iseult Gillespie Follow Jason as he attempts to steal the Golden Fleece from King Aeetes and enlists the help of the king's daughter Medea. (Part Two of the myth of Jason and the Argonauts) -- In Colchis the hide of a mystical flying ram hangs from the tallest oak guarded by a dragon who never sleeps. The only way Jason can pry it from King Aeetes clutches and win back his promised throne is by facing three perilous tasks without the help of the Argonauts. Unbeknownst to the king his daughter Medea was plotting something. Iseult Gillespie shares" [YouTube Link](https://youtube.com/watch?v=M7cIc7IAN6U) 2020-07-21T14:59Z 22.4M followers, 1.5M engagements "Why did people wear powdered wigs - Stephanie Honchell Smith Trace the rise and fall of the powdered wig fashion craze from King Louis XIII to the French Revolution in the 18th century. -- Wigs date at least as far back as ancient Egypt where well-regarded hairdressers crafted them into intricate styles. And under certain ancient Roman dynasties womens wigs became particularly ornate. Yet it wasnt until Louis XIII unveiled a magnificent mane in the 17th century that big wigs truly began booming. Stephanie Honchell Smith details the rise and fall of the bewigged fashion craze. Lesson by" [YouTube Link](https://youtube.com/watch?v=fl1i6RtM4o8) 2024-08-01T14:01Z 22.4M followers, 1M engagements "How did ancient civilizations make ice cream - Vivian Jiang Trace the history of ice cream from the first accounts of cold desserts in the 1st century to the cream-based treat we know today. -- Ice cream has a unique role in our worlds history culture and cravings. The first accounts of cold desserts date back to the first century in civilizations including ancient Rome Mughal India and Tang Dynasty China. Yet the cream-based delicacy we know today made a much later debut. So how did the delicious sweet treat come to be Vivian Jiang shares the scoop on the history of ice cream. Lesson by" [YouTube Link](https://youtube.com/watch?v=7K3KdgDcdYc) 2024-05-30T15:00Z 22.4M followers, 2.4M engagements "The myth of Cupid and Psyche - Brendan Pelsue Check out TED-Ed's Patreon page https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/the-myth-of-cupid-and-psyche-brendan-pelsue Psyche was born so beautiful that she was worshipped as a new incarnation of Venus the goddess of love. But human lovers were too intimidated to approach her and Apollo recommended her father abandon her on a crag where she would marry a cruel and savage serpent-like winged evil. But Psyches story ended up being much more interesting. Brendan Pelsue shares the myth of Cupid and Psyche. Lesson by" [YouTube Link](https://youtube.com/watch?v=Gjj_-CPxjCM) 2017-08-03T15:02Z 22.4M followers, 10.6M engagements "The myth of Medusa TED-Ed has launched its first ever physical game: Pandora's Legacy Learn more and get your copy here: https://ed.ted.com/pandora -- Medusa transformed into a monstrous Gorgon by a wrathful Athena sought refuge in a hidden cave. Time after time would-be heroes journeyed to the cave to make their names by murdering Medusa but fell to her gaze every time. Until another young man Perseus began his quest for glory. Laura Aitken-Burt shares the myth of Medusa and her infamous power to petrify. Lesson by Laura Aitken-Burt directed by Yael Reisfeld. Support Our Non-Profit Mission" [YouTube Link](https://youtube.com/watch?v=O18-FA83BaM) 2025-05-01T15:00Z 22.4M followers, 789.4K engagements "The philosophy of Stoicism - Massimo Pigliucci View full lesson: http://ed.ted.com/lessons/the-philosophy-of-stoicism-massimo-pigliucci What is the best life we can live How can we cope with whatever the universe throws at us and keep thriving nonetheless The ancient Greco-Roman philosophy of Stoicism explains that while we may not always have control over the events affecting us we can have control over how we approach things. Massimo Pigliucci describes the philosophy of Stoicism. Lesson by Massimo Pigliucci animation by Compote Collective. TED TED-Ed TED Education TED Ed Massimo Pigliucci" [YouTube Link](https://youtube.com/watch?v=R9OCA6UFE-0) 2017-06-19T15:00Z 22.4M followers, 11.5M engagements "An athlete uses physics to shatter world records - Asaf Bar-Yosef View full lesson: http://ed.ted.com/lessons/an-athlete-uses-physics-to-shatter-world-records-asaf-bar-yosef When Dick Fosbury couldn't compete against the skilled high jumpers at his college he tried jumping in a different way -- backwards. Fosbury improved his record immediately and continued to amaze the world with his new technique all the way to Olympic gold. Asaf Bar-Yosef explains the physics behind the success of the now dominant Fosbury Flop. Lesson by Asaf Bar-Yosef animation by NEIGHBOR. Fosbury Flop Dick Fosbury" [YouTube Link](https://youtube.com/watch?v=RaGUW1d0w8g) 2014-02-18T16:41Z 22.4M followers, 2.2M engagements "Why mosquitoes bite some people more than others - Maria Elena De Obaldia Explore the science of what attracts mosquitos and find out why mosquitos bite some people more than others. -- Some swear theyre cursed to be hunted by mosquitos while their close-by companions are regularly left unscathed. Are mosquitos really attracted to some people more than others And if so is there anything we can do about it Maria Elena De Obaldia digs into what factors make people tasty targets for these pesky insects. Lesson by Maria Elena De Obaldia directed by Anton Bogaty. This video made possible in" [YouTube Link](https://youtube.com/watch?v=V6rRifwIaio) 2023-09-26T15:00Z 22.4M followers, 1.5M engagements "Why do we feel nostalgia - Clay Routledge View full lesson: http://ed.ted.com/lessons/why-do-we-feel-nostalgia-clay-routledge Nostalgia was once considered an illness confined to specific groups of people. Today people all over the world report experiencing and enjoying nostalgia. But how does nostalgia work And is it healthy Clay Routledge details the way our understanding of nostalgia has changed since the term was first coined in the late 17th century. Lesson by Clay Routledge animation by Anton Bogaty. Clay Routledge what is nostalgia homesickness why do we miss home memories of things" [YouTube Link](https://youtube.com/watch?v=WiTgn5QH_HU) 2016-11-21T16:04Z 22.4M followers, 2M engagements "What yoga does to your body and brain - Krishna Sudhir Explore the ancient tradition of yoga and discover how its blend of physical and mental exercise impacts your health. -- There are many different approaches to modern yoga though most forms have three core elements: physical postures breathing exercises and spiritual contemplation.This blend of physical and mental exercise is widely believed to have a unique set of health advantages. But is yoga actually beneficial to your health Krishna Sudhir examines how this ancient tradition impacts the body and mind. Lesson by Krishna Sudhir" [YouTube Link](https://youtube.com/watch?v=_8kV4FHSdNA) 2020-06-18T15:00Z 22.4M followers, 4.1M engagements "The secret society of the Great Dismal Swamp - Dan Sayers Uncover the history of the hidden communities that inhabited the Great Dismal Swamp in North America. -- Straddling Virginia and North Carolina is an area that was once described as the most repulsive of American possessions. By [----] it was known as the Great Dismal Swamp. But while many deemed it uninhabitable recent findings suggest that a hidden society persisted in the Swamp until the mid-1800s. So who lived there And what happened to them Dan Sayers uncovers a lost civilization. Lesson by Dan Sayers directed by Toms" [YouTube Link](https://youtube.com/watch?v=_Gt9Mc9jnOE) 2021-08-12T15:00Z 22.4M followers, 342.6K engagements "The Irish myth of the Giant's Causeway - Iseult Gillespie Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/the-irish-myth-of-the-giant-s-causeway-iseult-gillespie On the coast of Northern Ireland a vast plateau of basalt slabs and columns called the Giants Causeway stretches into the ocean. The scientific explanation for this is that its the result of molten lava contracting and fracturing as it cooled in the wake of a volcanic eruption. But an ancient Irish myth has a different accounting. Iseult Gillespie recounts the Giant's Causeway" [YouTube Link](https://youtube.com/watch?v=aQbyVYUob1o) 2018-06-12T14:59Z 22.4M followers, 1.9M engagements "4 things all great listeners know Dig into different strategies that can improve your listening skills so you can become a high quality listener. -- Its easy to tell when someones not paying attention but it can be surprisingly tricky to know what good listening looks like. Good listening is one of the most important things we can do to improve our relationships develop our worldview and potentially change peoples minds. So what can we do to become better listeners Dig into different strategies that can improve your listening skills. Directed by Maryna Buchynska and action agency. This video" [YouTube Link](https://youtube.com/watch?v=i3ku5nx4tMU) 2022-11-21T16:01Z 22.4M followers, 2.5M engagements "A riddle of ice and fire dragons - Henri Picciotto Practice more problem-solving at https://brilliant.org/TedEd -- Its your first day as Center Realms official cartographer and youve already got a big problem. Center Realm is home to three elder dragons: two ice one fire and theyve lived in harmony for centuries. But scouts have sighted three fire dragons and five ice dragons flying towards the region. Can you figure out where to place the new dragons Henri Picciotto shows how. Lesson by Henri Picciotto directed by Igor Coric Artrake Studio. Try your hand at drawing the new dragon regions" [YouTube Link](https://youtube.com/watch?v=jMA7pWIFmIg) 2022-03-29T14:59Z 22.4M followers, 1.5M engagements "The myth of Sisyphus - Alex Gendler Download a free audiobook version of "Man's Search for Meaning" and support TED-Ed's nonprofit mission: https://adbl.co/2z7JGWx Check out our full book recommendation: https://bit.ly/2JYUn1y Sisyphus was both a clever ruler who made his city prosperous and a devious tyrant who seduced his niece and killed visitors to show off his power. While his violation of the sacred hospitality tradition greatly angered the gods it was Sisyphus reckless confidence that proved to be his downfall -- resulting in Zeus condemning him for all eternity. Alex Gendler shares" [YouTube Link](https://youtube.com/watch?v=q4pDUxth5fQ) 2018-11-13T16:01Z 22.4M followers, 8.8M engagements "Can you solve the monster duel riddle - Alex Gendler Practice more problem-solving at https://brilliant.org/TedEd/ -- Youve come a long way to compete in the great Diskymon league and prove yourself a Diskymon master. Now that youve made it to the finals youre up against some tough competition. In round one youll face a single opponent and get to choose your disk before she picks from the remaining two. Can you choose the one that gives you the best chance of winning Alex Gendler shows how. Lesson by Alex Gendler directed by Artrake Studio. Support Our Non-Profit Mission" [YouTube Link](https://youtube.com/watch?v=rn1mjuVXNEI) 2020-12-08T16:00Z 22.4M followers, 4M engagements "Can saunas make you live longer - Max G. Levy Explore how saunas can affect your body and dig into the health benefits and limitations of this millennia-old tradition. -- Finnish sauna Roman balneae Japanese onsen and Indigenous American sweat lodges are just a few examples of how cultures across the globe have long considered exposure to extreme temperatures therapeutic. But today scientists are only just beginning to unravel how and why this may be the case. So what exactly is happening in your body when you feel the heat Max G. Levy investigates. Lesson by Max G. Levy directed by Noam" [YouTube Link](https://youtube.com/watch?v=7c-OXc6H7us) 2025-08-21T15:00Z 22.4M followers, 1.3M engagements "How do antidepressants work - Neil R. Jeyasingam Dig into the discovery of antidepressant drugs how they work and what we still dont know about depression. -- In the 1950s the discovery of two new drugs sparked what would become a multi-billion dollar market for antidepressants. Neither drug was intended to treat depression at all many doctors and scientists believed psychotherapy was the only approach to treatment. Neil R. Jeyasingam details the decades-long journey that followed and how it revolutionized our understanding of depression. Lesson by Neil R. Jeyasingam directed by Skirmanta" [YouTube Link](https://youtube.com/watch?v=ClPVJ25Ka4k) 2021-03-18T15:01Z 22.4M followers, 4.6M engagements "Could we actually live on Mars - Mari Foroutan View full lesson: https://ed.ted.com/lessons/could-we-actually-live-on-mars-mari-foroutan#watch There's a lot of talk these days about when and how we might all move to Mars. But what would it actually be like to live there Mari Foroutan details the features of Mars that are remarkably similar to those of Earth and those that can only be found on the red planet. Lesson by Mari Foroutan animation by Nick Hilditch. Mars Water Oxygen Geography Space Outer space Space exploration Colonization of space Life on Mars Mars Water Oxygen Geography Space" [YouTube Link](https://youtube.com/watch?v=DMMPYkRrd4o) 2015-08-24T15:35Z 22.4M followers, 2.1M engagements "Why was bloodletting so popular - Stephanie Honchell Smith Trace the history of bloodletting a medical practice dating back to ancient Greece and its continued use into the 19th century. -- Bloodletting was a pervasive medical practice that dates as far back as ancient Greece and continued well into the 19th century. Physicians like Hippocrates believed bad health could be attributed to a fluid imbalance and recommended bloodletting to help reset the body's balance. So why did bloodletting stick around so long Stephanie Honchell Smith digs into its popularity and shortcomings. Lesson by" [YouTube Link](https://youtube.com/watch?v=I15FmhjEbQ0) 2025-06-17T15:00Z 22.4M followers, 276.8K engagements "How bacteria "talk" - Bonnie Bassler View full lesson: http://ed.ted.com/lessons/how-bacteria-talk-bonnie-bassler Bonnie Bassler discovered that bacteria "talk" to each other using a chemical language that lets them coordinate defense and mount attacks. The find has stunning implications for medicine industry -- and our understanding of ourselves. Talk by Bonnie Bassler. TED TED Talk TEDEducation TED-Ed Ed TED TED Talk TEDEducation TED-Ed Ed" [YouTube Link](https://youtube.com/watch?v=KXWurAmtf78) 2013-02-09T16:22Z 22.4M followers, 727K engagements "Why do we have museums - J. V. Maranto View full lesson: http://ed.ted.com/lessons/why-do-we-have-museums-j-v-maranto Museums have been a part of human history for over [----] years -- but they weren't always like the ones we visit today. J. V. Maranto uncovers the evolution of museums from the first museum in [---] BC (curated by a princess) to PT Barnums freak shows and beyond. Lesson by J. V. Maranto animation by Zedem Media. TED TED-Ed TEDx Museums Science Art Anthropology Natural history Iraq Sculpture Mosaic Muses Mesopotamia Ennigaldi-Nanna E-Gig-Par Gladiators Wunderkammers Menagerie" [YouTube Link](https://youtube.com/watch?v=MHo928fd2wE) 2015-02-05T16:13Z 22.4M followers, 613.5K engagements "Everything you need to know to read "Frankenstein" - Iseult Gillespie Explore Mary Shelley's Frankenstein which tells the story of a scientist who builds a creature from reanimated body parts. -- In [----] Lord Byron proposed a challenge to a few literary guests he had gathered in his house on Lake Geneva: Who could write the most chilling ghost story This question sparked an idea in eighteen-year-old Mary Shelley who over the next few months crafted the story of Frankenstein. Iseult Gillespie shares everything you need to know to read Mary Shelleys classic novel. Lesson by Iseult Gillespie" [YouTube Link](https://youtube.com/watch?v=PDgu25Dsv34) 2017-02-23T16:00Z 22.4M followers, 2M engagements "A brie(f) history of cheese - Paul Kindstedt Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/a-brie-f-history-of-cheese-paul-s-kindstedt Before empires and royalty before pottery and writing before metal tools and weapons there was cheese. As early as [----] BCE Neolithic farmers began a legacy of cheesemaking almost as old as civilization. Today the world produces roughly [--] billion kilograms of cheese a year shipped and consumed around the globe. Paul Kindstedt shares the history of one of our oldest and most beloved foods. Lesson by Paul" [YouTube Link](https://youtube.com/watch?v=QKae1k1BDdA) 2018-12-13T16:00Z 22.4M followers, 20.2M engagements "A brief history of cannibalism - Bill Schutt Human cannibalism is a lot more common than you might think. Dive into its complex history and see its uses in medicine cultural rituals and in times of survival. -- 15th century Europeans believed they had hit upon a miracle cure: a remedy for epilepsy hemorrhage bruising nausea and virtually any other medical ailment. It was a brown powder known as mumia and was made by grinding up mummified human flesh. But just how common is human cannibalism and how do cultures partake in it Bill Schutt explores the complex history of cannibalism. Lesson by" [YouTube Link](https://youtube.com/watch?v=Y2ODPFiksBE) 2019-07-25T15:01Z 22.4M followers, 5.3M engagements "The psychology of narcissism - W. Keith Campbell View full lesson: http://ed.ted.com/lessons/the-psychology-of-narcissism-w-keith-campbell Narcissism isnt just a personality type that shows up in advice columns; its actually a set of traits classified and studied by psychologists. But what causes it And can narcissists improve on their negative traits W. Keith Campbell describes the psychology behind the elevated and sometimes detrimental self-involvement of narcissists. Lesson by W. Keith Campbell animation by TOGETHER. W. Keith Campell TOGETHER narcissism narcissistic personality disorder" [YouTube Link](https://youtube.com/watch?v=arJLy3hX1E8) 2016-02-23T16:20Z 22.4M followers, 15.9M engagements "Where do math symbols come from - John David Walters Sign up for our newsletter here: https://ed.ted.com/newsletter View full lesson: https://ed.ted.com/lessons/where-do-math-symbols-come-from-john-david-walters Math is full of symbols: lines dots arrows English letters Greek letters superscripts subscripts . it can look like an illegible jumble. Where did all of these symbols come from John David Walters shares the origins of mathematical symbols and illuminates why theyre still so important in the field today. Lesson by John David Walters directed by Chris Bishop. Thank you so much to our" [YouTube Link](https://youtube.com/watch?v=eVm063xmnow) 2017-10-30T15:02Z 22.4M followers, 2.7M engagements "One of the most banned books of all time - Mollie Godfrey Explore why Maya Angelous memoir I Know Why The Caged Bird Sings became one of the most frequently banned books of all time. -- In [----] a school district removed one of American literatures most acclaimed works from its curriculum. Parents pushing for the ban said the book was both sexually explicit and anti-white. The book at the center of this debate was Maya Angelous I Know Why The Caged Bird Sings. Why was the memoir so controversial Mollie Godfrey digs into one of the most banned books of all time. Lesson by Mollie Godfrey" [YouTube Link](https://youtube.com/watch?v=h2Aqa5e4CYY) 2023-02-21T16:01Z 22.4M followers, 856.6K engagements "Can you solve the computer virus riddle - James Tanton Practice more problem-solving at https://brilliant.org/TedEd -- Your antivirus squad is up against a code thats hijacked your mainframe. What youve learned from other infected systems right before they went dark is that it likes to toy with antivirus agents in a very peculiar way and youre the agent thats been selected to go up against the malware. Can you figure out which disk that runs your mainframe has been corrupted James Tanton shows how. Lesson by James Tanton directed by Igor Coric Artrake Studio. Support Our Non-Profit Mission" [YouTube Link](https://youtube.com/watch?v=i0WH4SFpeB8) 2021-10-19T15:01Z 22.4M followers, 1.4M engagements "No one really knows what a tree is - Max G. Levy Dig into the system that helps scientists distinguish trees from other varieties of plants and what characteristics make a tree. -- Plants assume a variety of forms and trees are just one of them. What makes or breaks a tree can come down to some pretty specific characteristics based on how the plant develops as a result of how it evolved. Trees dont all comprise one closely related group like insects or mammals. So how exactly do trees get classified as trees Max G. Levy explains what distinguishes these woody plants. Lesson by Max G. Levy" [YouTube Link](https://youtube.com/watch?v=j1EXBeBA89w) 2025-04-17T15:23Z 22.4M followers, 500.9K engagements "How the world's longest underwater tunnel was built - Alex Gendler Discover how the English Channel Tunnel was built and the engineering challenges of building a [---] kilometer long tunnel underwater. -- Flanked by two powerful nations the English Channel has long been one of the worlds most important maritime passages. Yet for most of its history crossing was a dangerous prospect. Engineers proposed numerous plans for spanning the gap including a design for an underwater passage more than twice the length of any existing tunnel. Alex Gendler details the creation of the Channel Tunnel. Lesson" [YouTube Link](https://youtube.com/watch?v=qNS2jj2w-GI) 2020-03-30T15:00Z 22.4M followers, 4M engagements "How many ways can you arrange a deck of cards - Yannay Khaikin View full lesson: http://ed.ted.com/lessons/how-many-ways-can-you-arrange-a-deck-of-cards-yannay-khaikin One deck. Fifty-two cards. How many arrangements Let's put it this way: Any time you pick up a well shuffled deck you are almost certainly holding an arrangement of cards that has never before existed and might not exist again. Yannay Khaikin explains how factorials allow us to pinpoint the exact (very large) number of permutations in a standard deck of cards. Lesson by Yannay Khaikin animation by The Moving Company Animation" [YouTube Link](https://youtube.com/watch?v=uNS1QvDzCVw) 2014-03-27T15:06Z 22.4M followers, 1.7M engagements "Why is it so hard to break a bad habit Explore the psychology behind how good and bad habits are formed and get tips on how to manage these behaviors. -- Many people deal with a nail-biting habit at some point in their lives. Some will go to great lengths to try to stop employing strategies like dipping their hands in salt or wearing gloves. And while not all of us are nail-biters most of us do have a habit wed like to kick. So what's the best way to break one Explore how habits are formed and discover tips on how to manage these behaviors. Directed by Sacha Beeley. This video made possible" [YouTube Link](https://youtube.com/watch?v=wr6fQ4KpbRM) 2023-08-31T15:01Z 22.4M followers, 1.3M engagements "Can you solve the fantasy election riddle - Dennis E. Shasha Practice more problem-solving at https://brilliant.org/TedEd -- After much debate the realm has decided dragon jousting may not be the best way to choose its leaders and has begun transitioning to democracy. Your company was hired to survey the citizens of the land and predict which candidate will win. Theres a lot riding on this: if you get it wrong heads well your head will quite literally roll. Can you predict the winner Dennis Shasha shows how. Lesson by Dennis E. Shasha directed by Igor Coric Artrake Studio. Support Our" [YouTube Link](https://youtube.com/watch?v=-lLkBoYv5FU) 2021-03-25T15:00Z 22.4M followers, 1.9M engagements "Why do people have seasonal allergies - Eleanor Nelsen View full lesson: http://ed.ted.com/lessons/why-do-some-people-have-seasonal-allergies-eleanor-nelsen Ah spring. Grass growing flowers blooming trees budding. For those with allergies though this explosion of new life probably inspires more dread than joy. So whats behind this annual onslaught of mucus Eleanor Nelsen explains what happens when your immune system goes rogue. Lesson by Eleanor Nelson animation by TED-Ed. Seasonal allergies Sneeze Allergic reaction Pollen Immune system Hay fever Allergic Rhinitis antibodies antihistamine" [YouTube Link](https://youtube.com/watch?v=-q7Fz7NIMWM) 2016-05-26T14:57Z 22.4M followers, 582.4K engagements "What is obesity - Mia Nacamulli View full lesson: http://ed.ted.com/lessons/what-is-obesity-mia-nacamulli Obesity is an escalating global epidemic. It substantially raises the probability of diseases like diabetes heart disease stroke high blood pressure and cancer. But what is the distinction between being overweight and being obese And how does a person become obese Mia Nacamulli explores obesity. Lesson by Mia Nacamulli animation by Kozmonot Animation Studio. Mia Nacamulli Kozmonot Animation Studio WORKPLAYWORK Cem Misirlioglu Obesity Obesity epidemic Public health healthy eating nutrition" [YouTube Link](https://youtube.com/watch?v=-vNVG7XJpVE) 2016-06-30T15:02Z 22.4M followers, 1.2M engagements "How smart are dolphins - Lori Marino View full lesson: http://ed.ted.com/lessons/how-smart-are-dolphins-lori-marino Dolphins are one of the smartest animal species on Earth. In fact their encephalization quotient (their brain size compared to the average for their body size) is second only to humans. But exactly how smart are they Lori Marino details some incredible facts about dolphins. Lesson by Lori Marino animation by Zedem Media. Lori Marino Zedem Media Dolphins Animal intelligence Conservation Neuroscience Animal communication Doctor Doolittle TED TED-Ed TEDx TED Education Animal" [YouTube Link](https://youtube.com/watch?v=05PpTqtGhGU) 2015-08-31T15:04Z 22.4M followers, 3.5M engagements "The greatest mathematician that never lived - Pratik Aghor Dig into the mystery of Nicolas Bourbaki one of the most influential mathematicians of all time who never actually existed. -- When Nicolas Bourbaki applied to the American Mathematical Society in the 1950s he was already one of the most influential mathematicians of his time. Hed published articles in international journals and his textbooks were required reading. Yet his application was firmly rejected for one simple reason: Nicolas Bourbaki did not exist. How is that possible Pratik Aghor digs into the mystery. Lesson by Pratik" [YouTube Link](https://youtube.com/watch?v=0O_boW9YA7I) 2020-07-06T15:00Z 22.4M followers, 2.9M engagements "A brief history of toilets - Francis de los Reyes Explore the history of the toilet and how waste management has evolved from from ancient Mesopotamia to modern day. -- On sunny days citizens of ancient Rome could be found exchanging news and gossip while attending to more urgent business at the public latrines. Today most cultures consider trips to the restroom to be a more private occasion. But even when going alone our shared sewage infrastructure is one of the most pivotal inventions in human history. Francis de los Reyes shares the history of the toilet. Lesson by Francis de los Reyes" [YouTube Link](https://youtube.com/watch?v=0dYk99S98Jc) 2021-06-15T15:01Z 22.4M followers, 6M engagements "Can you survive a Komodo dragon bite - Achmad Ariefiandy Dig into what we know about Komodo dragons and find out what you should do if you encounter these giant lizards in the wild. -- Clambering through the bush on one of Indonesias Lesser Sunda Islands suddenly you spy a Komodo dragon in the clearing ahead. Forked tongue flickering; sharp saw-like teeth glimmering; and strong scaly body stretching up to [--] meters Komodo dragons are formidable. So what should you do Are you doomed Achmad Ariefiandy shares what we know about the world's largest lizards. Lesson by Achmad Ariefiandy directed by" [YouTube Link](https://youtube.com/watch?v=0pF6ZLCxceM) 2025-05-20T15:00Z 22.4M followers, 903.3K engagements "How to enter flow state Explore the defining features of being in a flow state and get tips on how you can find flow in your daily life. -- Flow is more than just concentrating or paying attention; it's a unique mental state of effortless engagement. And those who more frequently experience flow report higher levels of positive emotions creativity and feelings of accomplishment. But what exactly is flow And how can we find it in our daily lives Explore steps you can take to increase your chances of finding flow. Directed by Leah Putnam. This video made possible in collaboration with Character" [YouTube Link](https://youtube.com/watch?v=0rIjFCNay2Q) 2023-07-27T15:01Z 22.4M followers, 2.6M engagements "The myth of the boiling frog Explore how greenhouse gas emissions impact global warming and why its necessary to get emissions down to net zero. -- Since [----] global average temperatures have risen by [--] degree Celsius. That may not sound like a lot but it is. Why [--] degree is an average. Many places have already gotten much warmer and if average temperatures increase one more degree the coldest nights in the Arctic might get [--] degrees warmer. So how did we get here And what can be done Explore the challenges of net zero emissions. Directed by Lisa LaBracio. Animation and art direction by Lusa" [YouTube Link](https://youtube.com/watch?v=128fp0rqfbE) 2021-02-16T16:00Z 22.4M followers, 1.7M engagements "How bones make blood - Melody Smith Dig into the science of how bone marrow transplants work and find out how you could become a donor by visiting https://join.bethematch.org/teded -- Bones might seem rock-solid but theyre actually quite porous inside. Most of the large bones of your skeleton have a hollow core filled with soft bone marrow. Marrow's most essential elements are blood stem cells and for patients with advanced blood cancers like leukemia and lymphoma the best chance for a cure is often a bone marrow transplant. How does this procedure work Melody Smith explains. Lesson by Melody" [YouTube Link](https://youtube.com/watch?v=1Qfmkd6C8u8) 2020-01-27T16:01Z 22.4M followers, 959.3K engagements "How the food you eat affects your gut - Shilpa Ravella View full lesson: http://ed.ted.com/lessons/how-the-food-you-eat-affects-your-gut-shilpa-ravella The bacteria in our guts can break down food the body cant digest produce important nutrients regulate the immune system and protect against harmful germs. And while we cant control all the factors that go into maintaining a healthy gut microbiome we can manipulate the balance of our microbes by paying attention to what we eat. Shilpa Ravella shares the best foods for a healthy gut. Lesson by Shilpa Ravella animation by Andrew Foerster. TED" [YouTube Link](https://youtube.com/watch?v=1sISguPDlhY) 2017-03-23T15:07Z 22.4M followers, 7M engagements "What does it mean to be a refugee - Benedetta Berti and Evelien Borgman View full lesson: http://ed.ted.com/lessons/what-does-it-mean-to-be-a-refugee-benedetta-berti-and-evelien-borgman About [--] million people around the globe have been forced to leave their homes to escape war violence and persecution. The majority have become Internally Displaced Persons meaning they fled their homes but are still in their own countries. Others referred to as refugees sought shelter outside their own country. But what does that term really mean Benedetta Berti and Evelien Borgman explain. Lesson by" [YouTube Link](https://youtube.com/watch?v=25bwiSikRsI) 2016-06-16T15:00Z 22.4M followers, 1.6M engagements "A day in the life of an ancient Egyptian doctor - Elizabeth Cox Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/a-day-in-the-life-of-an-ancient-egyptian-doctor-elizabeth-cox Its another sweltering morning in Memphis Egypt. As the sunlight brightens the Nile Peseshet checks her supplies. Honey garlic cumin acacia leaves cedar oil -- shes well stocked with the essentials she needs to treat her patients. Elizabeth Cox outlines a day in the life of an ancient Egyptian doctor. Lesson by Elizabeth Cox animation by Echo Bridge. Thank you so much" [YouTube Link](https://youtube.com/watch?v=2rvLEJrQm7g) 2018-07-19T15:12Z 22.4M followers, 6.7M engagements "Why are eating disorders so hard to treat - Anees Bahji Dig into the psychiatric conditions of eating disorders and explore the complex effects they have on the body and mind. -- Globally about 10% of people will experience an eating disorder during their lifetime. And yet eating disorders are profoundly misunderstood. Misconceptions about everything from symptoms to treatment make it difficult to navigate an eating disorder or support someone you love as they do so. Anees Bahji shares what is and isnt true about eating disorders. Lesson by Anees Bahji directed by Laura Jayne Hodkin. Support" [YouTube Link](https://youtube.com/watch?v=3Bax8ijH038) 2022-05-19T15:00Z 22.4M followers, 2M engagements "Titan of terror: The dark imagination of H.P. Lovecraft - Silvia Moreno-Garca Dive into the stories of horror savant H.P. Lovecraft whose fantastical tales such as The Call of Cthulhu created a new era of Gothic horror. -- Arcane books of forbidden lore disturbing secrets in the family bloodline and terrors so unspeakable the very thought of them might drive you mad. These have become standard elements in modern horror stories. But they were largely popularized by a single author: H.P. Lovecraft whose name has become synonymous with the terror he inspired. Silvia Moreno-Garca dissects the" [YouTube Link](https://youtube.com/watch?v=3M3L4VIZv-U) 2019-04-23T15:00Z 22.4M followers, 2.6M engagements "The Turing test: Can a computer pass for a human - Alex Gendler View full lesson: http://ed.ted.com/lessons/the-turing-test-can-a-computer-pass-for-a-human-alex-gendler What is consciousness Can an artificial machine really think For many these have been vital considerations for the future of artificial intelligence. But British computer scientist Alan Turing decided to disregard all these questions in favor of a much simpler one: Can a computer talk like a human Alex Gendler describes the Turing test and details some of its surprising results. Lesson by Alex Gendler animation by Patrick" [YouTube Link](https://youtube.com/watch?v=3wLqsRLvV-c) 2016-04-25T15:17Z 22.4M followers, 1.8M engagements "The hidden treasures of Timbuktu - Elizabeth Cox Dig into the ancient manuscripts scrolls and books of Timbuktu and find out why theyve been hidden for centuries. -- On the edge of the vast Sahara desert citizens snuck out of the city of Timbuktu and took to the wilderness. They buried chests in the desert sand hid them in caves and sealed them in secret rooms. Inside these chests was a treasure more valuable than gold: the citys ancient books. Why were they hiding these priceless manuscripts Elizabeth Cox digs into the literary tradition of Timbuktu. Lesson by Elizabeth Cox directed by AIM" [YouTube Link](https://youtube.com/watch?v=40ehHbdi95o) 2020-10-22T15:00Z 22.4M followers, 1M engagements "How many verb tenses are there in English - Anna Ananichuk Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/how-many-verb-tenses-are-there-in-english-anna-ananichuk How many different verb tenses are there in a language like English At first the answer seems obvious theres past present and future. But it isn't quite that simple. Anna Ananichuk explains how thanks to something called grammatical aspect each of those time periods actually divides further. Lesson by Anna Ananichuk directed by Luke Rotzler. Thank you so much to our patrons for" [YouTube Link](https://youtube.com/watch?v=54prMaPn5Ls) 2017-11-06T16:06Z 22.4M followers, 962.3K engagements "The beauty of data visualization - David McCandless View full lesson: http://ed.ted.com/lessons/david-mccandless-the-beauty-of-data-visualization David McCandless turns complex data sets like worldwide military spending media buzz and Facebook status updates into beautiful simple diagrams that tease out unseen patterns and connections. Good design he suggests is the best way to navigate information glut -- and it may just change the way we see the world. Talk by David McCandless. TEDEducation TED-Ed TED Ed David McCandless design data data visualization Facebook media set TEDEducation TED-Ed" [YouTube Link](https://youtube.com/watch?v=5Zg-C8AAIGg) 2012-11-23T17:14Z 22.4M followers, 1.6M engagements "Can you solve the penniless pilgrim riddle - Daniel Finkel If you enjoy our riddles we highly recommend reading "The Number Devil": https://amzn.to/2kO7S8P Check out our book rec page to learn more: http://bit.ly/2JqwgLE View full lesson: https://ed.ted.com/lessons/can-you-solve-the-penniless-pilgrim-riddle-daniel-finkel After months of travel youve arrived at Duonia home to the famous temple thats the destination of your pilgrimage. The walk from the welcome center to the temple isn't a long one . but theres a problem. Can you outsmart the city's imposed tax and make it to the temple without" [YouTube Link](https://youtube.com/watch?v=6sBB-gRhfjE) 2018-06-04T15:03Z 22.4M followers, 7M engagements "Can you solve the passcode riddle - Ganesh Pai View full lesson: http://ed.ted.com/lessons/can-you-solve-the-passcode-riddle-ganesh-pai In a dystopian world your resistance group is humanitys last hope. Unfortunately youve all been captured by the tyrannical rulers and brought to the ancient coliseum for their deadly entertainment. Will you be able to solve the passcode riddle and get everyone out safely Ganesh Pai shows how. Lesson by Ganesh Pai animation by Jun Zee Myers. Ganesh Pai Jun Zee Myers Addison Anderson Can you solve the passcode riddle passcode riddle escape from hell riddle" [YouTube Link](https://youtube.com/watch?v=7Vd1dTBVbFg) 2016-07-07T14:59Z 22.4M followers, 10.2M engagements "The most dangerous elements on the periodic table - Shannon Odell Learn more at https://brilliant.org/TedEd -- Within the periodic table loom many potential hazardous elements. Some elements are dangerous due to their toxicity. Others are dangerous because of how they respond react or even explode in the outside environment. And perhaps the most threatening elements are those that silently emit energy. So which substances on the periodic table are the most dangerous Shannon Odell investigates. Lesson by Shannon Odell directed by Anton Bogaty. This video made possible in collaboration with" [YouTube Link](https://youtube.com/watch?v=7Vhu433hkys) 2024-08-06T15:02Z 22.4M followers, 874.3K engagements "What are truffles and why are they so expensive - Carolyn Beans Dig into the truffles unique and mysterious biology to find out what makes them so rare and the limitations of farming them. -- Truffles are one of the worlds most expensive foods in part because global demand often outstrips supply. And truffles are becoming even more rare and more expensive as deforestation and climate change shrink their suitable terrain. But why are these fungi so rare And why dont we just farm more of them Carolyn Beans digs into the truffles unique and somewhat mysterious biology. Lesson by Carolyn Beans" [YouTube Link](https://youtube.com/watch?v=7ZCTazqNYMo) 2025-09-09T15:01Z 22.4M followers, 610.4K engagements "Ugly History: Witch Hunts - Brian A. Pavlac Uncover the history of the witch hunts that swept through Europe and the American colonies from the 15th century until the 18th century. -- In the German town of Nrdlingen in [----] innkeeper Maria Hll found herself accused of witchcraft. She was arrested for questioning and denied the charges. She insisted she wasnt a witch through [--] rounds of torture before her accusers finally released her. Other accused witches werent so lucky." Why did these witch hunts occur Brian A. Pavlac digs into this horrific chapter in human history. Lesson by Brian A." [YouTube Link](https://youtube.com/watch?v=7x5KesH3dzM) 2019-06-11T15:00Z 22.4M followers, 2.3M engagements "A brief history of dogs - David Ian Howe Trace the history of how wolves one of humanitys oldest rivals evolved into the domesticated dogs we call mans best friend. -- Since their emergence over [------] years ago modern humans have established communities all over the planet. But they didnt do it alone. Whatever corner of the globe you find humans in today youre likely to find another species as well: dogs. So how did one of our oldest rivals the wolf evolve into mans best friend David Ian Howe traces the history of humanitys first domesticated animal. Lesson by David Ian Howe directed by" [YouTube Link](https://youtube.com/watch?v=8_KWmzLObQ4) 2019-03-26T15:02Z 22.4M followers, 3.8M engagements "Why are beavers obsessed with dams - Glynnis Hood Explore how beavers build their impressive dams and what impact these structures have on the surrounding environment. -- Nestled in the forests of Canada sits the worlds longest beaver dam. This 850-meter-long structure is large enough to be seen in satellite imagery and has dramatically transformed the region creating a pond containing [--] million liters of water. But dams of any size can have huge impacts on their environment. So how exactly do beavers build these impressive structures Glynnis Hood investigates. Lesson by Glynnis Hood" [YouTube Link](https://youtube.com/watch?v=9_AuKM7S6TU) 2023-01-05T16:00Z 22.4M followers, 578.5K engagements "Can you solve the secret werewolf riddle - Dan Finkel Practice more problem-solving at https://brilliant.org/TedEd/ Signup to receive the bonus riddle's solution: https://brilliant.org/TedEdWerewolf/ Youre on the trail of a werewolf thats been terrorizing your town. After months of detective work youve narrowed your suspects to one of five people. Youve invited them to dinner with a simple plan: to slip a square of a rare antidote into each of their dinners. Unfortunately you only have one square left. Can you divide it into perfect fifths and cure the werewolf Dan Finkel shows how. Lesson by" [YouTube Link](https://youtube.com/watch?v=9gfPZoyMyTU) 2018-11-08T15:59Z 22.4M followers, 4.2M engagements "Run sail or hide How to survive the destruction of Pompeii - Gary Devore Download a free audiobook version of Into Thin Air and support TED-Ed's nonprofit mission: https://www.audible.com/ted-ed -- Its a bustling day in Pompeii. After a quick visit to the market Fabia spots her brothers Lucius and Marcus crossing the Forum. The siblings begin discussing Lucius wedding but a deafening boom interrupts them. They watch Vesuvius spew smoke ash and rock and realize theyve been living in the shadow of a volcano. Gary Devore follows the siblings as they attempt to survive the disaster. Lesson by" [YouTube Link](https://youtube.com/watch?v=9klE-iUxX0c) 2021-05-20T15:00Z 22.4M followers, 2.9M engagements "Can you solve the jail break riddle - Dan Finkel Youre a bank robber trying to escape from jail. Can you solve the riddle to get past the fence to freedom -- Your timing made you and your partner infamous bank robbers. Now you need to use that timing to break out of jail. Your partner is about to flash you a signal and exactly [--] seconds later the electric fence circuit will short out. Then you notice that your watch is broken and all you have are two 1-minute fuses in your pocket. Can you time your escape and get free Dan Finkel shows how. Lesson by Dan Finkel directed by Artrake Studio." [YouTube Link](https://youtube.com/watch?v=9uZ-jeZS8d0) 2019-02-26T15:59Z 22.4M followers, 4.7M engagements "The carbon cycle - Nathaniel Manning View full lesson: http://ed.ted.com/lessons/the-carbon-cycle-nathaniel-manning What exactly is the carbon cycle Nathaniel Manning provides a basic look into the cyclical relationship of carbon humans and the environment. Lesson by Nathaniel Manning animation by Jill Johnston. Nathaniel Manning TEDeducation TED-Ed TED Ed Jill Johnston climate change carbon carbon cycle Nathaniel Manning TEDeducation TED-Ed TED Ed Jill Johnston climate change carbon carbon cycle" [YouTube Link](https://youtube.com/watch?v=A4cPmHGegKI) 2012-10-02T14:56Z 22.4M followers, 787.1K engagements "First person vs. Second person vs. Third person - Rebekah Bergman Discover how point of view can transform a story and find out how to choose between first second and third person in your writing. -- Who is telling a story and from what perspective are some of the most important choices an author makes. Told from a different point of view a story can transform completely. Third person first person and second person perspectives each have unique possibilities and constraints. So how do you choose a point of view for your story Rebekah Bergman explores the different ways to focus a story." [YouTube Link](https://youtube.com/watch?v=B5vEfuLS2Qc) 2020-06-25T15:00Z 22.4M followers, 1.4M engagements "Eli the eel: A mysterious migration - James Prosek View full lesson: http://ed.ted.com/lessons/eli-the-eel-a-mysterious-migration-james-prosek They're slippery. They're slithery. And while they totally look like underwater snakes eels are in fact unique fish that can breathe through their skin and even survive out of water. James Prosek tracks the life journey of Eli the Anguilla eel as she (yes she) travels her mysterious "backward" migration from the sea to fresh water and back again. Lesson by James Prosek animation by Cinematic. James Prosek Cinematic Veronica Wallenberg TED TED-Ed TED Ed" [YouTube Link](https://youtube.com/watch?v=BR1enXROmgA) 2014-02-10T16:09Z 22.4M followers, 1.1M engagements "The Fijian myth of the greedy god - Raiana McKinney and Esther Wozniak Dig into the Fijian myth of Dakuwaqa the shape-shifting shark god who is determined to take over all of Fiji's islands. -- Long ago the ancestral gods of Fiji settled on the Pacific archipelago. They eventually metamorphosed into various forms with the god Dakuwaqa transforming into a shark. But he was unsatisfied. He became proud and greedy and wanted to establish himself as the mightiest god and dominate all of Fijis islands. Raiana McKinney and Esther Wozniak share the tale of Dakuwaqas quest for power. Lesson by Raiana" [YouTube Link](https://youtube.com/watch?v=CBWgOe8HsV0) 2024-02-13T16:00Z 22.4M followers, 354.7K engagements "How to unboil an egg - Eleanor Nelsen View full lesson: http://ed.ted.com/lessons/how-to-unboil-an-egg-eleanor-nelsen Its so obvious that its practically proverbial: you cant unboil an egg. But actually it turns out that you can -- sort of. Eleanor Nelsen explains the process by which mechanical energy can undo what thermal energy has done. Lesson by Eleanor Nelsen animation by Provincia Studio. TED TEd-Ed TEDx TED Education Egg Thermal energy Mechanical energy Protein Chemistry Chemical bonds Principal of microscopic reversability Eleanor Nelsen Provincia Studio TED TEd-Ed TEDx TED Education" [YouTube Link](https://youtube.com/watch?v=CHMY4G9gTPA) 2015-04-23T14:59Z 22.4M followers, 4.8M engagements "Are all of your memories real - Daniel L. Schacter Dig into the psychology of how memories are susceptible to false information and why we shouldnt treat them as truth. -- In a 1990s study participants recalled getting lost in a shopping mall as children. Some shared these memories in vivid detail but there was one problem: none of these people had actually gotten lost in a mall. They produced these false memories after psychologists told them theyd gotten lost and parents confirmed it. So whats going on Daniel L. Schacter explores the fallibility of our memory. Lesson by Daniel L. Schacter" [YouTube Link](https://youtube.com/watch?v=D-2p86FvqF4) 2020-09-08T15:00Z 22.4M followers, 2.2M engagements "What is a coronavirus - Elizabeth Cox Dig into the science of coronaviruses and find out how they cause diseases such as SARS MERS and COVID-19. -- For almost a decade scientists chased the source of a deadly new virus through Chinas tallest mountains and most isolated caverns. They finally found it in the bats of Shitou Cave. The virus in question was a coronavirus that caused an epidemic of severe acute respiratory syndrome or SARS in [----]. So what exactly is a coronavirus and how does it spread Elizabeth Cox explains. Lesson by Elizabeth Cox directed by Anton Bogaty. Animator's website:" [YouTube Link](https://youtube.com/watch?v=D9tTi-CDjDU) 2020-05-14T15:02Z 22.4M followers, 2M engagements "Ugly History: The Armenian Genocide - mit Kurt Dig into the history of the Armenian Genocide during which the Ottoman Empire killed over [--] million Armenians during WWI. -- When an Armenian resistance movement began to form in the 19th century Sultan Abdul Hamid II took decisive action. He led the Hamidian Massacres a relentless campaign of violence that killed over [------] Armenians. These massacres were the culmination of centuries of oppression yet they were only the beginning of an even greater tragedy. mit Kurt uncovers the history of the Armenian Genocide. Lesson by mit Kurt directed by" [YouTube Link](https://youtube.com/watch?v=DXgrI8GlUB8) 2024-11-12T16:01Z 22.4M followers, 727.3K engagements "Why was India split into two countries - Haimanti Roy Dig into the [----] Partition of India when Britain split the region into two states India and Pakistan and the mass migrations and violence that followed. -- In [----] the British viceroy announced that after [---] years of British rule India would gain independence and be partitioned into Hindu India and Muslim Pakistan. What followed was one of the largest and bloodiest forced migrations in history: an estimated [--] million people lost their lives. What caused this violent aftermath Haimanti Roy details the lasting legacies of the Partition of" [YouTube Link](https://youtube.com/watch?v=DrcCTgwbsjc) 2021-06-21T15:00Z 22.4M followers, 4.8M engagements "What is Zeno's Dichotomy Paradox - Colm Kelleher View full lesson: http://ed.ted.com/lessons/what-is-zeno-s-dichotomy-paradox-colm-kelleher Can you ever travel from one place to another Ancient Greek philosopher Zeno of Elea gave a convincing argument that all motion is impossible - but where's the flaw in his logic Colm Kelleher illustrates how to resolve Zeno's Dichotomy Paradox. Lesson by Colm Kelleher animation by Buzzco Associates inc. Zeno of Alea philosophy mathematics Zeno's Dichotomy Paradox paradox dichotomy Zeno Colm Kelleher Buzzco Associates TED-Ed TED Ed TEDEducation Zeno of" [YouTube Link](https://youtube.com/watch?v=EfqVnj-sgcc) 2013-04-15T15:05Z 22.4M followers, 3.9M engagements "Can you solve the dark matter fuel riddle - Dan Finkel An ancient abandoned alien space station has been discovered. Can you beat everyone in the galaxy and reach it first -- Its an incredible discovery: an abandoned alien space station filled with precursor technology. Now every species in the galaxy is in a mad dash to get there first but youve got a problem. Your ship cant hold enough fuel to get you there unless you vent caches of it into space at precise points and then come back for the fuel later. Can you reach the alien space station Dan Finkel shows how. Lesson by Daniel Finkel" [YouTube Link](https://youtube.com/watch?v=Fj2hTS5Kjyw) 2019-07-16T15:01Z 22.4M followers, 1.5M engagements "Not all scientific studies are created equal - David H. Schwartz View full lesson: Not all scientific studies are created equal - David H. Schwartz Every day we are bombarded by attention grabbing headlines that promise miracle cures to all of our ailments -- often backed up by a "scientific study." But what are these studies and how do we know if they are reliable David H. Schwartz dissects two types of studies that scientists use illuminating why you should always approach the claims with a critical eye. Lesson by David H. Schwartz animation by Augenblick Studios. TED TED-Ed TED Ed" [YouTube Link](https://youtube.com/watch?v=GUpd2HJHUt8) 2014-04-28T15:19Z 22.4M followers, 633.8K engagements "Why are we so attached to our things - Christian Jarrett View full lesson: http://ed.ted.com/lessons/why-are-we-so-attached-to-our-things-christian-jarrett After witnessing the violent rage shown by babies whenever deprived of an item they considered their own Jean Piaget a founding father of child psychology observed something profound about human nature: Our sense of ownership emerges incredibly early. But why do we become so attached to things Christian Jarrett details the psychology of ownership. Lesson by Christian Jarrett animation by Avi Ofer. TED TED Education TED Ed TED-Ed Christian" [YouTube Link](https://youtube.com/watch?v=H2_by0rp5q0) 2016-12-27T15:59Z 22.4M followers, 2.8M engagements "Why doesnt the Leaning Tower of Pisa fall over - Alex Gendler Dig into the [---] year history and architecture of the Leaning Tower of Pisa and find out what gives the tower its infamous tilt. -- In [----] the Italian government enlisted top engineers to stabilize Pisas famous Leaning Tower. Thered been many attempts during its [---] year history but computer models revealed the urgency of their situation. The tower would topple if it reached an angle of [----] degrees and it was currently leaning at [---]. What gives the tower its infamous tilt Alex Gendler explores the monument's history. Lesson by" [YouTube Link](https://youtube.com/watch?v=HFqf6aKdOC0) 2019-12-03T16:00Z 22.4M followers, 5.4M engagements "What causes economic bubbles - Prateek Singh View full lesson: http://ed.ted.com/lessons/what-causes-economic-bubbles-prateek-singh During the 1600s the exotic tulip became a nationwide sensation; some single bulbs even sold for ten times the yearly salary of a skilled craftsman. Suddenly though the demand completely plummeted leaving the tulip market in a depression. What happened Prateek Singh explains the peak of a business cycle commonly referred to as a mania. Lesson by Prateek Singh animation by Simon Ampel. TED TED-Ed TEDx TED Education Tulip Holland Netherlands Stock Investment" [YouTube Link](https://youtube.com/watch?v=I5ZR0jMlxX0) 2015-05-04T15:14Z 22.4M followers, 1.3M engagements "How one of the worlds richest companies rose to power - Shantel George Dig into the bitter history of kola nuts a sacred ingredient in West African culture and part of Coca-Cola's original recipe. -- The kola nut is the seed of the kola tree a small evergreen native to the forests of West Africa where its long been integral to the cultural fabric of many communities. So how did this sacred ingredient end up all around the world And how did it make its way into the original recipe of a drink that billions of people consume every day Shantel George explores the bitter history of kola nuts." [YouTube Link](https://youtube.com/watch?v=IpaVpMFBwAE) 2025-11-25T16:00Z 22.4M followers, 403.1K engagements "Meet the tardigrade the toughest animal on Earth - Thomas Boothby View full lesson: http://ed.ted.com/lessons/meet-the-tardigrade-the-toughest-animal-on-earth-thomas-boothby Without water a human can only survive for about [---] hours. But theres a creature so resilient that it can go without it for decades. This 1-millimeter animal can survive both the hottest and coldest environments on earth and can even withstand high levels of radiation. Thomas Boothby introduces us to the tardigrade one of the toughest creatures on Earth. Lesson by Thomas Boothby animation by Boniato Studio. TED TED-Ed" [YouTube Link](https://youtube.com/watch?v=IxndOd3kmSs) 2017-03-21T15:02Z 22.4M followers, 5M engagements "Newton's [--] Laws with a bicycle - Joshua Manley Watch full lesson here: http://ed.ted.com/lessons/joshua-manley-newton-s-3-laws-with-a-bicycle Why would it be hard to pedal a [-----] pound bicycle This simple explanation shows how Newton's [--] laws of motion might help you ride your bike. Newton's Laws Joshua Manley TED TED Ed TED-Ed TEDEdcuation TED Education bicycle bike inertia laws of motion Newton's Laws Joshua Manley TED TED Ed TED-Ed TEDEdcuation TED Education bicycle bike inertia laws of motion" [YouTube Link](https://youtube.com/watch?v=JGO_zDWmkvk) 2012-09-19T15:02Z 22.4M followers, 2.7M engagements "Will we ever be able to teleport - Sajan Saini View full lesson: https://ed.ted.com/lessons/will-we-ever-be-able-to-teleport-sajan-saini Is teleportation possible Could a baseball transform into something like a radio wave travel through buildings bounce around corners and change back into a baseball Oddly enough thanks to quantum mechanics the answer might actually be yes. sort of Sajan Saini explains. Lesson by Sajan Saini directed by Karrot Animation. TEd TED-Ed TED Education TED Ed Sajan Saini Karrot Animation quantum quantum teleportation teleportation quantum entanglement qubit electron" [YouTube Link](https://youtube.com/watch?v=JMdO5KyjwAw) 2017-07-31T15:02Z 22.4M followers, 3.3M engagements "A day in the life of an Aztec midwife - Kay Read Join the Aztec midwife Xoquauhtli as she tends to her patients and honors the warrior goddess Teteoinnan at a festival ushering in the season of warfare. -- The midwife Xoquauhtli has a difficult choice to make. She owes a debt to her patron Teteoinnan the female warrior goddess at the center of the Aztec seasonal festival who must be kept happy or she will bring bad luck. Xoquauhtli should participate in the festival today but one of her patients could go into labor any minute. Kay Read outlines a day in the life of an Aztec midwife. Lesson by" [YouTube Link](https://youtube.com/watch?v=JZj7acYZ19w) 2020-05-12T15:00Z 22.4M followers, 1.5M engagements "The history of the world according to cats - Eva-Maria Geigl Sign up for our newsletter and never miss an animation: http://bit.ly/TEDEdNewsletter View full lesson: https://ed.ted.com/lessons/the-history-of-the-world-according-to-cats-eva-maria-geigl In ancient times wildcats were fierce carnivorous hunters. And unlike dogs who have undergone centuries of selective breeding modern cats are genetically very similar to ancient cats. How did these solitary fierce predators become our sofa sidekicks Eva-Maria Geigl traces the domestication of the modern house cat. Lesson by Eva-Maria Geigl" [YouTube Link](https://youtube.com/watch?v=Jsj-hDW9bS8) 2019-01-03T15:59Z 22.4M followers, 10.2M engagements "What is schizophrenia - Anees Bahji Discover what we know and dont know about the symptoms causes and treatments of schizophrenia. -- Schizophrenia was first identified more than a century ago but we still dont know its exact causes. It remains one of the most misunderstood and stigmatized illnesses today. So what do we actually know about its symptoms causes and treatments Anees Bahji investigates. Lesson by Anees Bahji directed by Artrake Studio. Animator's website: https://www.artrake.com/ Sign up for our newsletter: http://bit.ly/TEDEdNewsletter Support us on Patreon:" [YouTube Link](https://youtube.com/watch?v=K2sc_ck5BZU) 2020-03-26T15:00Z 22.4M followers, 11.7M engagements "How to write comedy - Jodie Houlston-Lau Download a free audiobook version of Born A Crime and support TED-Ed's nonprofit mission: https://www.audible.com/ted-ed -- It may seem counterintuitive but comedy is often key to a serious story. As a writer you need your audience to experience a range of emotions no matter what your genre. Comic relief is a tried-and-true way of creating the varied emotional texture a compelling story needs. So how can you create this effect in your own stories Jodie Houlston-Lau shares some tips for lightening the mood. Lesson by Jodie Houlston-Lau directed by Joe" [YouTube Link](https://youtube.com/watch?v=K6r2ikSjnUo) 2021-11-16T16:01Z 22.4M followers, 454.1K engagements "The Prison Break Think Like A Coder Ep [--] The adventure begins Episode 1: Ethic awakens in a mysterious cell. Can she and robot Hedge solve the programming puzzles blocking their escape -- This is episode [--] of our animated series Think Like A Coder. This 10-episode narrative follows a girl Ethic and her robot companion Hedge as they attempt to save the world. The two embark on a quest to collect three artifacts and must solve their way through a series of programming puzzles. Lesson by Alex Rosenthal directed by Kozmonot Animation Studio. Supported by Endless: https://endlessnetwork.com A" [YouTube Link](https://youtube.com/watch?v=KFVdHDMcepw) 2019-09-30T14:59Z 22.4M followers, 1.9M engagements "It's a church. It's a mosque. It's Hagia Sophia. - Kelly Wall View full lesson: http://ed.ted.com/lessons/it-s-a-church-it-s-a-mosque-it-s-hagia-sophia-kelly-wall If walls could talk Turkey's Hagia Sophia would have an abundance of stories to tell. Once a church then a mosque and later a museum this world marvel has stood the test of time and war surviving centuries of conquest by some of history's greatest empires. Kelly Wall takes us through the history of each layer of this great jewel of human desire. Lesson by Kelly Wall animation by Andrew Foerster. Kelly Wall Andrew Foerster TED TED-Ed" [YouTube Link](https://youtube.com/watch?v=KRPp3jzv1Tw) 2014-07-14T15:20Z 22.4M followers, 2.4M engagements "Using radioactive drugs to see inside your body - Pedro Brugarolas Investigate the science behind how doctors use radioactive drugs and PET scans to detect and diagnose diseases like Alzheimers and cancer. -- Is there a way to detect diseases like cancer and Alzheimers before they advance too far Doctors are using injected radioactive drugs that circulate through the body and act as a beacon for PET scanners. These diagnostic tools can detect the spread of diseases before they can be spotted with other types of imaging. So how exactly does this work and is it safe Pedro Brugarolas" [YouTube Link](https://youtube.com/watch?v=KXzONBPcPIk) 2019-03-19T15:01Z 22.4M followers, 389.6K engagements "What causes headaches - Dan Kwartler Download a free audiobook and support TED-Ed's nonprofit mission: https://adbl.co/2Hejwql Check out Oliver Sacks's "The Man Who Mistook His Wife for a Hat": http://bit.ly/2Hk8ShM View full lesson: https://ed.ted.com/lessons/what-causes-headaches-dan-kwartler In ancient Greece the best-known remedy for a long-standing headache was to drill a small hole in the skull to drain supposedly infected blood. Fortunately doctors today dont resort to power tools to cure headaches but we still have a lot to learn about this ancient ailment. Dan Kwartler shares what we" [YouTube Link](https://youtube.com/watch?v=KpHP8VmxnBo) 2018-04-12T15:01Z 22.4M followers, 7.6M engagements "Check your intuition: The birthday problem - David Knuffke View full lesson: http://ed.ted.com/lessons/check-your-intuition-the-birthday-problem-david-knuffke Imagine a group of people. How big do you think the group would have to be before theres more than a 50% chance that two people in the group have the same birthday The answer is probably lower than you think. David Knuffke explains how the birthday problem exposes our often-poor intuition when it comes to probability. Lesson by David Knuffke animation by TED-Ed. TED TED-Ed TED Education TED Ed birthday birthday problem twins leap year" [YouTube Link](https://youtube.com/watch?v=KtT_cgMzHx8) 2017-05-04T17:09Z 22.4M followers, 3M engagements "Why plague doctors wore beaked masks Explore the history of the European plague doctor and find out where their iconic outfit of a beaked mask and robe came from. -- The year is [----]. Your body is wracked by violent chills. Your head pounds and you're too weak to sit up. In your feverish state you see a strange-looking man wearing a beak-like mask his body covered from head to toe. Without seeing his face you know: you have the plague. So where did these iconic outfits come from Stephanie Honchell Smith explores the history of plague doctors. Directed by Anton Bogaty. This video made possible" [YouTube Link](https://youtube.com/watch?v=LMt8xm4t7XQ) 2022-11-22T16:00Z 22.4M followers, 2.2M engagements "How does the Rorschach inkblot test work - Damion Searls What are the origins of the Rorschach test and how does it work Explore the inkblot tool psychologists use to test a subjects perceptions and mental health. -- For nearly a century ten inkblots have been used as an almost mystical personality test. Long kept confidential for psychologists and their patients the mysterious images were said to draw out the workings of a persons mind. But what can inkblots really tell us and how does this test work Damion Searls details how the Rorschach Test can help us understand the patterns of our" [YouTube Link](https://youtube.com/watch?v=LYi19-Vx6go) 2019-03-05T16:01Z 22.4M followers, 7.5M engagements "Why is it so hard to cure the common cold Dig into the two main ways we fight the viruses that cause the common cold and find out if its possible to create a cure. -- On average adults catch more than [---] colds throughout their lives. Even with similar symptoms the cause could be different each time. Common colds are caused by at least [--] different families of virus each of which can have its own subtypes. How can so many different viruses cause the same illness And is a cure even possible Explore the two main strategies we employ to fight viruses. Directed by Anton Bogaty. This video made" [YouTube Link](https://youtube.com/watch?v=LsqCA50d7BM) 2022-10-20T15:01Z 22.4M followers, 1.4M engagements "What is consciousness - Michael S. A. Graziano Explore the theories of human consciousness and the science of how your brain works to create a conscious experience. -- Patient P.S. suffered a stroke that damaged the right side of her brain leaving her unaware of everything on her left side. If someone threw a ball at her left side she might duck. But she wouldnt have awareness of the ball or know why she ducked. Where does consciousness come from Michael Graziano explores the question that has vexed scientists and philosophers for centuries. Lesson by Michael S. A. Graziano directed by" [YouTube Link](https://youtube.com/watch?v=MASBIB7zPo4) 2019-02-11T16:01Z 22.4M followers, 1.7M engagements "The vocabulary of electricity - James Sheils We all know the words around electricity "charge" "positive" "battery" and more. But where do they come from and what do they really mean Let the history of these words illuminate the physics of electric phenomena. Lesson by James Sheils animation by TED-Ed. View the full lesson: http://ed.ted.com/lessons/electric-vocabulary James Sheils electricity physics electric TED TED-Ed battery charge history of electricity TED Education Biljana Labovic Celeste Lai James Sheils electricity physics electric TED TED-Ed battery charge history of electricity TED" [YouTube Link](https://youtube.com/watch?v=MBRTR2dlwvA) 2012-07-16T15:15Z 22.4M followers, 689.9K engagements "How to sequence the human genome - Mark J. Kiel View full lesson: http://ed.ted.com/lessons/how-to-sequence-the-human-genome-mark-j-kiel Your genome every human's genome consists of a unique DNA sequence of A's T's C's and G's that tell your cells how to operate. Thanks to technological advances scientists are now able to know the sequence of letters that makes up an individual genome relatively quickly and inexpensively. Mark J. Kiel takes an in-depth look at the science behind the sequence. Lesson by Mark J. Kiel animation by Marc Christoforidis. Mark Kiel Marc Christoforidis Human Genome" [YouTube Link](https://youtube.com/watch?v=MvuYATh7Y74) 2013-12-09T16:08Z 22.4M followers, 1.6M engagements "What is McCarthyism And how did it happen - Ellen Schrecker View full lesson: http://ed.ted.com/lessons/what-is-mccarthyism-and-how-did-it-happen-ellen-schrecker In the 1950s as part of a campaign to expose suspected Communists thousands of individuals were aggressively investigated and questioned before government panels. Named after its most notorious practitioner the phenomenon known as McCarthyism destroyed lives and careers. But how did this episode of political repression take off Ellen Schrecker traces the history of McCarthyism. Lesson by Ellen Schrecker animation by Patrick Smith." [YouTube Link](https://youtube.com/watch?v=N35IugBYH04) 2017-03-14T15:02Z 22.4M followers, 4.4M engagements "Can you solve the prisoner hat riddle - Alex Gendler View full lesson: http://ed.ted.com/lessons/can-you-solve-the-prisoner-hat-riddle-alex-gendler Want more Try the buried treasure riddle: https://www.youtube.com/watchv=tCeklW2e6_E You and nine other individuals have been captured by super-intelligent alien overlords. The aliens think humans look quite tasty but their civilization forbids eating highly logical and cooperative beings. Unfortunately theyre not sure whether you qualify so they decide to give you all a test. Can you solve this hat riddle Alex Gendler shows how. Lesson by Alex" [YouTube Link](https://youtube.com/watch?v=N5vJSNXPEwA) 2015-10-05T15:13Z 22.4M followers, 35.1M engagements "What really happened during the Salem Witch Trials - Brian A. Pavlac Dig into how the infamous Salem Witch Trials began and why they remain a cautionary tale of the dangers of groupthink and scapegoating. -- Youve been accused of a crime you did not commit. Its impossible to prove your innocence. If you insist that youre innocent anyway youll likely be found guilty and executed. But if you confess apologize and implicate others youll go free. This was the choice facing those accused of witchcraft in Salem Massachusetts in the 17th century. How did this happen Brian A. Pavlac investigates." [YouTube Link](https://youtube.com/watch?v=NVd8kuufBhM) 2020-05-04T15:01Z 22.4M followers, 8.1M engagements "Who decides how long a second is - John Kitching Discover how scientists developed atomic clocks which use the vibrations of atoms to measure and maintain a globally consistent time. -- In [----] researchers gathered to answer a long-running scientific question: just how long is a second It might seem obvious at first. A second is the tick of a clock the swing of a pendulum the time it takes to count to one. But how precise are those measurements And what is that length based on John Kitching digs into how we scientifically define this fundamental unit of time. Lesson by John Kitching directed" [YouTube Link](https://youtube.com/watch?v=OKms5a0nGO4) 2021-01-19T16:00Z 22.4M followers, 2.7M engagements "How your digestive system works - Emma Bryce Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/how-your-digestive-system-works-emma-bryce Across the planet humans eat on average between [--] and [---] kilograms of food a day and every last scrap makes its way through the digestive system. Comprised of ten organs covering nine meters this is one of the most complicated systems in the body. Emma Bryce explains how the different parts of the digestive system work to transform your food into the nutrients and energy that keep you alive. Lesson by" [YouTube Link](https://youtube.com/watch?v=Og5xAdC8EUI) 2017-12-14T16:01Z 22.4M followers, 13.3M engagements "The science of skin - Emma Bryce Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/the-science-of-skin-emma-bryce Between you and the rest of the world lies an interface that makes up 16% of your physical weight. This is your skin the largest organ in your body: laid out flat it would cover close to [---] square metres of ground. But besides keeping your organs in what is its purpose Emma Bryce takes us into the integumentary system to find out. Lesson by Emma Bryce animation by Augenblick Studios. Thank you so much to our patrons for your" [YouTube Link](https://youtube.com/watch?v=OxPlCkTKhzY) 2018-03-12T15:00Z 22.4M followers, 2.2M engagements "The benefits of good posture - Murat Dalkilin View full lesson: http://ed.ted.com/lessons/the-benefits-of-good-posture-murat-dalkinic Has anyone ever told you Stand up straight or scolded you for slouching at a family dinner Comments like that might be annoyingbut theyre not wrong. Your posture is the foundation for every movement your body makes and can determine how well your body adapts to the stresses on it. Murat Dalkilin gives the pros of good posture. Lesson by Murat Dalkilin animation by Nadav Arbel. Posture Spine Center of gravity Technology Phone Computer Slouch Nadav Arbel Murat" [YouTube Link](https://youtube.com/watch?v=OyK0oE5rwFY) 2015-07-30T15:00Z 22.4M followers, 17.4M engagements "Why is it so hard to cure ALS - Fernando G. Vieira Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/why-is-it-so-hard-to-cure-als-fernando-vieira Amyotrophic Lateral Sclerosis (ALS) also called motor neuron disease and Lou Gehrigs Disease affects about two out of every [------] people worldwide. When a person has ALS their motor neurons - the cells responsible for all voluntary muscle control in the body - lose function and die. Fernando G. Vieira shares what we know (and don't know) about ALS. Lesson by Fernando G. Vieira animation by" [YouTube Link](https://youtube.com/watch?v=P9CEzFYCWMo) 2018-05-31T15:02Z 22.4M followers, 525.4K engagements "The unexpected math behind Van Gogh's "Starry Night" - Natalya St. Clair Check out our Patreon page: https://www.patreon.com/teded View full lesson: http://ed.ted.com/lessons/the-unexpected-math-behind-van-gogh-s-starry-night-natalya-st-clair Physicist Werner Heisenberg said When I meet God I am going to ask him two questions: why relativity And why turbulence I really believe he will have an answer for the first. As difficult as turbulence is to understand mathematically we can use art to depict the way it looks. Natalya St. Clair illustrates how Van Gogh captured this deep mystery of" [YouTube Link](https://youtube.com/watch?v=PMerSm2ToFY) 2014-10-30T15:13Z 22.4M followers, 9.6M engagements "How do self-driving cars see - Sajan Saini Take a look at the LIDAR and integrated photonics technologies that help self-driving cars navigate obstacles no matter the environment weather or light. -- Its late pitch dark and a self-driving car winds down a narrow country road. Suddenly three hazards appear at the same time. With no human at the wheel the car uses smart eyes sensors thatll resolve these details all in a split-second. How is this possible Sajan Saini explains how LIDAR and integrated photonics technology make self-driving cars a reality. Lesson by Sajan Saini directed by Artrake" [YouTube Link](https://youtube.com/watch?v=PRg5RNU_JLk) 2019-05-13T15:01Z 22.4M followers, 602.1K engagements "Which voting system is the best - Alex Gendler Dive into four different voting systems: plurality instant runoff tactical and the Condorcet method and find out which is fairest. -- Imagine we want to build a new space port at one of four recently settled Martian bases and are holding a vote to choose its location. Of the [---] colonists on Mars [--] live on West Base [--] on North Base [--] on South Base and [--] on East Base. Assuming that everyone wants the port to be closest to their home base what is the fairest way to conduct the vote Alex Gendler digs into voting systems. Lesson by Alex Gendler" [YouTube Link](https://youtube.com/watch?v=PaxVCsnox_4) 2020-06-11T15:00Z 22.4M followers, 1.4M engagements "How do crystals work - Graham Baird What makes crystals grow into their signature shapes Dig into the atomic patterns and unique properties of crystals. -- Many crystals have signature shapes like the cascade of pointed quartz or a pile of galena cubes. Every crystals atoms have a defining feature: their organized repeating pattern. The pattern isn't restricted to minerals- sand ice metals and DNA also have crystalline structures. So what causes them to grow into these shapes again and again Graham Baird dives into the unique properties of crystals. Lesson by Graham Baird directed by Franz" [YouTube Link](https://youtube.com/watch?v=PgSRAsgrKmg) 2019-06-18T15:00Z 22.4M followers, 3.7M engagements "Sugar: Hiding in plain sight - Robert Lustig View full lesson: http://ed.ted.com/lessons/sugar-hiding-in-plain-sight-robert-lustig While sugar is easy to spot in candy soft drinks and ice cream it also hides out in foods you might not expect -- including peanut butter pasta sauce and even bologna Robert Lustig decodes confusing labels and sugar's many aliases to help determine just how much of that sweet carbohydrate makes its way into our diets. Lesson by Robert Lustig animation by The Tremendousness Collective. Robert Lustig The Tremendousness Collective Carbohydrate sugar food TED TED-Ed" [YouTube Link](https://youtube.com/watch?v=Q4CZ81EmAsw) 2014-03-31T15:16Z 22.4M followers, 1.4M engagements "Why should you read "Hamlet" - Iseult Gillespie Explore William Shakespeares classic tragedy Hamlet a play about conspiracy deception and the tragic consequences of indecision. -- Whos there Whispered in the dark this question begins a tale of conspiracy deception and moral ambiguity. And in a play where everyone has something to hide its answer is far from simple. Written by William Shakespeare Hamlet depicts its titular character haunted by the past but immobilized by the future. Iseult Gillespie digs into the humanity and tragedy of Hamlet. Lesson by Iseult Gillespie directed by Lucy" [YouTube Link](https://youtube.com/watch?v=QTu39aMg_mU) 2019-06-25T15:00Z 22.4M followers, 2.1M engagements "Which animal has the best eyesight - Thomas W. Cronin Explore the incredible diversity of eyes and vision in the animal kingdom and find out which creature has the best eyesight. -- The animal kingdom boasts an incredible diversity of eyes. Some rotate independently while others have squiggly-shaped pupils. Some have protective lids others squirt blood. But which creature has the best sight Which sees best in the darkness Which sees the most detail Which animal sees the most color And finally which detects motion the fastest Thomas W. Cronin investigates. Lesson by Thomas W. Cronin directed" [YouTube Link](https://youtube.com/watch?v=QjVqIW281Qo) 2022-01-25T16:00Z 22.4M followers, 989.3K engagements "How Thor got his hammer - Scott A. Mellor Sign up for our newsletter and never miss an animation: http://bit.ly/TEDEdNewsletter View full lesson: https://ed.ted.com/lessons/how-thor-got-his-hammer-scott-a-mellor Loki the mischief-maker writhes in Thors iron grip. The previous night hed snuck up on Thors wife and shorn off her beautiful hair. To fix what hed done Loki rushes to the dwarves and tricks them into making gifts for the gods. Wanting to best their smith rivals the dwarves make a set of golden treasures including a hammer called Mjolnir. Scott A. Mellor traces the legend of Thors" [YouTube Link](https://youtube.com/watch?v=Qytj-DbXMKQ) 2019-01-07T16:00Z 22.4M followers, 14.1M engagements "Can AI predict someone's breakup - Thomas Hofweber Explore one of the main issues of AI-based predictive models and how it affects user decision-making and accountability. -- A couple has been considering getting engaged but theyre worried about divorce statistics. An AI-based model was just released that can predict your likelihood of divorce with 95% accuracy. The only catch is the model doesnt offer any reasons for its results. So should they decide whether or not to get married based on this AIs prediction Thomas Hofweber explores AIs transparency problem. Lesson by Thomas Hofweber" [YouTube Link](https://youtube.com/watch?v=RX-upJeSm7w) 2024-05-21T15:00Z 22.4M followers, 194.5K engagements "What is bipolar disorder - Helen M. Farrell Explore the medical condition known as bipolar disorder and learn about its symptoms causes and treatments. -- The word bipolar means two extremes. For the many millions experiencing bipolar disorder around the world life is split between two different realities: elation and depression. So what causes this disorder And can it be treated Helen M. Farrell describes the root causes and treatments for bipolar disorder. Lesson by Helen M Farrell animation by Uncle Ginger. Sign up for our newsletter: http://bit.ly/TEDEdNewsletter Support us on Patreon:" [YouTube Link](https://youtube.com/watch?v=RrWBhVlD1H8) 2017-02-09T15:59Z 22.4M followers, 14.5M engagements "If you had the chance to be immortal would you take it - Sarah Stroud and Michael Vazquez Explore different philosophers ideas on immortality and dig into their theories about the positives and negatives of eternal life. -- While cleaning out your uncles attic you find a chest with a sparkling potion. The attached tag declares drinking this liquid will make you immortal. Your body will be frozen at its current age and these effects would be final and irreversible. The instructions are clear the only question is do you drink the potion Sarah Stroud and Michael Vazquez explore this" [YouTube Link](https://youtube.com/watch?v=S3jqTWXwzJc) 2025-09-11T15:01Z 22.4M followers, 1.6M engagements "The myth of Gawain and the Green Knight - Dan Kwartler Dig into the myth of the Green Knight who comes to King Arthurs court to challenge the honor and bravery of Camelots knights. -- It was Christmas in Camelot and King Arthur was throwing a party. In the midst of the revelry a towering knight proposed a game. He challenged the warriors present to attack him with his own axe. If they could strike him down they would win his powerful weapon. However he would be allowed to return the blow in one year. Dan Kwartler details the myth of Sir Gawain and the Green Knight. Lesson by Dan Kwartler" [YouTube Link](https://youtube.com/watch?v=SaQImmPev2o) 2022-02-03T15:59Z 22.4M followers, 1.7M engagements "What causes an economic recession - Richard Coffin How can factors like inflation supply and demand and interest rates trigger recessions Learn the economic basics of modern markets. -- For millennia the people of Britain had been using bronze to make tools and jewelry and as a currency for trade. But around [---] BCE that began to change: the value of bronze declined causing social upheaval and an economic crisis what we would call a recession today. So what causes recessions Richard Coffin digs into the economic fluctuations that affect our modern markets. Lesson by Richard Coffin directed by" [YouTube Link](https://youtube.com/watch?v=SwaCg7Gwtzw) 2019-10-15T15:00Z 22.4M followers, 2.3M engagements "The Romans flooded the Colosseum for sea battles - Janelle Peters Dig in to the history of the Roman Empires staged gladiatorial naval battles and how they flooded the Colosseum to reenact famous battles. -- Starting in [--] CE residents of Rome and visitors from across the Roman Empire would fill the stands of the Colosseum to see gladiators duel animals fight and chariots race around the arena. And for the grand finale water poured into the arena basin submerging the stage for the greatest spectacle of all: staged naval battles. Janelle Peters details the history of these mock maritime" [YouTube Link](https://youtube.com/watch?v=TB5weRIYhjQ) 2019-06-24T15:01Z 22.4M followers, 1.1M engagements "Why are some people left-handed - Daniel M. Abrams View full lesson: http://ed.ted.com/lessons/why-are-some-people-left-handed-daniel-m-abrams Today about one-tenth of the worlds population are southpaws. Why are such a small proportion of people left-handed -- and why does the trait exist in the first place Daniel M. Abrams investigates how the uneven ratio of lefties and righties gives insight into a balance between competitive and cooperative pressures on human evolution. Lesson by Daniel M. Abrams animation by TED-Ed. TED TED-Ed TEDx Left-hand Left-handed Proper hand Right-hand" [YouTube Link](https://youtube.com/watch?v=TGLYcYCm2FM) 2015-02-03T16:20Z 22.4M followers, 11.1M engagements "You could have a secret twin (but not the way you think) - Kayla Mandel Sheets Download a free audiobook version of The Vanishing Half and support TED-Ed's nonprofit mission: https://www.audible.com/ted-ed -- While searching for a kidney donor Karen Keegan stumbled upon a mystery. After undergoing genetic testing it turned out that some of her cells had a completely different set of genes from the others. And this second set of genes belonged to her twin sister who had never been born. How did this happen Kayla Mandel Sheets explores the condition known as chimerism. Lesson by Kayla Mandel" [YouTube Link](https://youtube.com/watch?v=TbcEXnNrvIA) 2021-09-16T15:00Z 22.4M followers, 3.2M engagements "The world needs all kinds of minds - Temple Grandin View full lesson: http://ed.ted.com/admin/lessons Temple Grandin diagnosed with autism as a child talks about how her mind works -- sharing her ability to "think in pictures" which helps her solve problems that neurotypical brains might miss. She makes the case that the world needs people on the autism spectrum: visual thinkers pattern thinkers verbal thinkers and all kinds of smart geeky kids. Talk by Temple Grandin. Temple Grandin TED TED Talk TED-ED TEDEducation Ed autism autistic autism spectrum spectrum Temple Grandin TED TED Talk" [YouTube Link](https://youtube.com/watch?v=UKhg68QJlo0) 2013-02-10T16:03Z 22.4M followers, 783.9K engagements "The myth of Prometheus - Iseult Gillespie Dig into the myth of Prometheus a Titan who defied Zeus to give fire to humanity and was punished for eternity. -- Before the creation of humanity the Greek gods won a great battle against a race of giants called the Titans. Most Titans were destroyed or driven to the eternal hell of Tartarus. But the Titan Prometheus whose name means foresight persuaded his brother Epimetheus to fight with him on the side of the Gods. Iseult Gillespie shares the myth of Prometheus. Lesson by Iseult Gillespie directed by La Krawczyk. Support Our Non-Profit Mission" [YouTube Link](https://youtube.com/watch?v=U_u91SjrEOE) 2017-11-14T16:05Z 22.4M followers, 9.7M engagements "The Cambodian myth of lightning thunder and rain - Prumsodun Ok Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/the-cambodian-myth-of-lightning-thunder-and-rain-prumsodum-ok "Moni Mekhala Ream Eyso" is the most sacred dance drama in Cambodia. It is performed every year in the buong suong ceremony and explains the origins of lightning thunder and rain according to the Khmer people. Prumsodun Ok tells this empowering tale that still enlightens our world today. Lesson by Prumsodun Ok animation by Silvia Prietov. Thank you so much to our" [YouTube Link](https://youtube.com/watch?v=Ul9ysDvkuLA) 2018-04-10T15:01Z 22.4M followers, 4.9M engagements "The psychology behind irrational decisions - Sara Garofalo View full lesson: http://ed.ted.com/lessons/the-psychology-behind-irrational-decisions-sara-garofalo Often people make decisions that are not rational from a purely economical point of view meaning that they dont necessarily lead to the best result. Why is that Are we just bad at dealing with numbers and odds Or is there a psychological mechanism behind it Sara Garofalo explains heuristics problem-solving approaches based on previous experience and intuition rather than analysis. Lesson by Sara Garofalo animation by TOGETHER. Sara" [YouTube Link](https://youtube.com/watch?v=V2EMuoM5IX4) 2016-05-12T15:00Z 22.4M followers, 2.4M engagements "The secret language of trees - Camille Defrenne and Suzanne Simard Learn how trees are able to communicate with each other through a vast root system and symbiotic fungi called mycorrhizae. -- Most of the forest lives in the shadow of the giants that make up the highest canopy. These are the oldest trees with hundreds of children and grandchildren. They check in with their neighbors share food supplies and wisdom gained over their lives all while rooted in place. How do they do this Camille Defrenne and Suzanne Simard explore the vast root system and intricate communication of trees. Lesson" [YouTube Link](https://youtube.com/watch?v=V4m9SefyRjg) 2019-07-01T15:00Z 22.4M followers, 861.9K engagements "The wars that inspired Game of Thrones - Alex Gendler View full lesson: http://ed.ted.com/lessons/the-wars-that-inspired-game-of-thrones-alex-gendler Beginning around [----] medieval England was shaken by a power struggle between two noble families which spanned generations and involved a massive cast of characters complex motives and shifting loyalties. Sound familiar Alex Gendler illustrates how the historical conflict known as the Wars of the Roses served as the basis for much of the drama in Game of Thrones. Lesson by Alex Gendler animation by Brett Underhill. Game of thrones History" [YouTube Link](https://youtube.com/watch?v=VjO55pKuBo4) 2015-05-11T15:10Z 22.4M followers, 7.4M engagements "How turtle shells evolved. twice - Judy Cebra Thomas Check out the fascinating science behind the evolution of the turtle shell over [---] million years in the making. -- Modern turtle shells are almost as diverse as the turtles themselves. Sea turtles have flatter lighter shells for gliding through the water. Land-dwelling tortoises have domed shells that can slip free of predators jaws. Leatherback turtles have shells without the ring of bone around the edge. So how did the shell evolve Judy Cebra-Thomas explores the ancestry of the turtle. Lesson by Judy Cebra-Thomas directed by Cabong" [YouTube Link](https://youtube.com/watch?v=W9wAfqBd_T0) 2019-07-30T15:00Z 22.4M followers, 994.6K engagements "How to make smart decisions more easily Explore the psychology of decision fatigue what kinds of choices lead us to this state and what we can do to fight it. -- Everything our bodies do whether physical or mental uses energy. Studies have found that many individuals seem to have a daily threshold for making decisions and an extended period of decision-making can lead to cognitive exhaustion. So what kinds of choices lead us to this state and what can we do to fight fatigue Explore the psychology of decision fatigue and ways you can avoid fatigue. Directed by Jolene Tan. This video made" [YouTube Link](https://youtube.com/watch?v=X7j8F16eSqs) 2023-11-30T16:00Z 22.4M followers, 1.9M engagements "Why is English so confusing - Arika Okrent Explore the evolution of English spelling conventions throughout history and find out why it's such an inconsistent language. -- Spelling reformers have been advocating for changes to make English spelling more intuitive and less irregular. One example of its messiness: take the g-h sound from enough the o sound from women and the t-i sound from action and you could argue that g-h-o-t-i spells fish. So how did English get like this Arika Okrent explores the complexity of English spelling conventions. Lesson by Arika Okrent directed by Emily Howells" [YouTube Link](https://youtube.com/watch?v=XFhY4Vy3IHc) 2024-05-23T14:00Z 22.4M followers, 715.5K engagements "How to squeeze electricity out of crystals - Ashwini Bharathula View full lesson: http://ed.ted.com/lessons/how-to-squeeze-electricity-out-of-crystals-ashwini-bharathula It might sound like science fiction but if you press on a crystal of sugar it will actually generate its own electricity. This simple crystal can act like a tiny power source because sugar happens to be piezoelectric. Ashwini Bharathula explains how piezoelectric materials turn mechanical stress like pressure sound waves and other vibrations into electricity and vice versa. Lesson by Ashwini Bharathula animation by Karrot" [YouTube Link](https://youtube.com/watch?v=YEJ2qryXcIQ) 2017-06-20T15:00Z 22.4M followers, 722.4K engagements "What is entropy - Jeff Phillips View full lesson: http://ed.ted.com/lessons/what-is-entropy-jeff-phillips Theres a concept thats crucial to chemistry and physics. It helps explain why physical processes go one way and not the other: why ice melts why cream spreads in coffee why air leaks out of a punctured tire. Its entropy and its notoriously difficult to wrap our heads around. Jeff Phillips gives a crash course on entropy. Lesson by Jeff Phillips animation by Provincia Studio. TED TED Education TED-Ed TED Ed Jeff Phillips Provincia Studio entropy chemistry physics disorder atomic bonds" [YouTube Link](https://youtube.com/watch?v=YM-uykVfq_E) 2017-05-09T15:00Z 22.4M followers, 4.9M engagements "Why should you read Dantes Divine Comedy - Sheila Marie Orfano Explore Dante Alighieris epic poem Divine Comedy a 3-part narrative that follows Dantes journey for salvation through Hell. -- Abandon all hope ye who enter here Inscribed above the Gate of Hell this prophecy sets into motion an epic journey for salvation. Written over [--] years Dante Alighieris three-part narrative poem Divine Comedy is both an allegorical imagining of the souls journey towards God and a scathing political commentary. Sheila Maria Orfano shares its timeless themes of love sin and redemption. Lesson by Sheila Marie" [YouTube Link](https://youtube.com/watch?v=YbCEWSip9pQ) 2019-10-10T15:00Z 22.4M followers, 2.1M engagements "How do geckos defy gravity - Eleanor Nelsen View full lesson: http://ed.ted.com/lessons/how-do-geckos-defy-gravity-eleanor-nelsen Geckos arent covered in adhesives or hooks or suction cups and yet they can effortlessly scale vertical walls and hang from ceilings. Whats going on Eleanor Nelsen explains how geckos phenomenal feet allow them to defy gravity. Lesson by Eleanor Nelsen animation by Marie-Louise Hjer Jensen. TED TED-Ed TED Education Eleanor Nelsen Gecko Feet Climbing Charges Positive charge Negative charge Intermolecular forces Nuclei Van der waals forces Particles Chemistry Physics" [YouTube Link](https://youtube.com/watch?v=YeSuQm7KfaE) 2015-03-30T15:04Z 22.4M followers, 1.6M engagements "How friendship affects your brain - Shannon Odell Dig into what happens to your brain during adolescence that changes how you value understand and connect to friends. -- If it seems like friendships formed in adolescence are particularly special that's because they are. Childhood adolescent and adult friendships all manifest differently in part because the brain works in different ways at those stages of life. During adolescence there are changes in the way you value understand and connect to friends. Shannon Odell explores the neuroscience of friendship. Lesson by Shannon Odell directed by" [YouTube Link](https://youtube.com/watch?v=YmVpwXH4jhA) 2022-09-15T15:01Z 22.4M followers, 1.6M engagements "Should we get rid of standardized testing - Arlo Kempf Download a free audiobook and support TED-Ed's nonprofit mission: http://www.audible.com/teded Check out Todd Rose's "The End of Average: How We Succeed in a World That Values Sameness": https://shop.ed.ted.com/collections/ted-ed-book-recommendations/products/the-end-of-average View full lesson: https://ed.ted.com/lessons/should-we-get-rid-of-standardized-testing-arlo-kempf Although standardized testing is a particularly hot topic in education right now this approach to measurement has been in use for two millennia. And while the results" [YouTube Link](https://youtube.com/watch?v=YtE0OsRWeYI) 2017-09-19T15:04Z 22.4M followers, 1.3M engagements "Why do airlines sell too many tickets - Nina Klietsch View full lesson on ed.ted.com: http://ed.ted.com/lessons/why-do-airlines-sell-too-many-tickets-nina-klietsch Have you ever sat in a doctors office for hours despite having an appointment Has a hotel turned down your reservation because its full Have you been bumped off a flight that you paid for These are all symptoms of overbooking a practice where businesses sell or book more than their capacity. So why do they do it Nina Klietsch explains the math behind this frustrating practice. Lesson by Nina Klietsch animation by Anton Trofimov." [YouTube Link](https://youtube.com/watch?v=ZFNstNKgEDI) 2016-12-20T16:03Z 22.4M followers, 2.6M engagements "Can you solve the virus riddle - Lisa Winer View full lesson: http://ed.ted.com/lessons/can-you-solve-the-virus-riddle-lisa-winer Your research team has found a prehistoric virus preserved in the permafrost and isolated it for study. After a late night working youre just closing up the lab when a sudden earthquake hits and breaks all the sample vials. Will you be able to destroy the virus before the vents open and unleash a deadly airborne plague Lisa Winer shows how. Lesson by Lisa Winer animation by Artrake Studio. TED TED-Ed TED Education TED Ed Lisa Winer Artrake Studio riddle virus" [YouTube Link](https://youtube.com/watch?v=ZKh6z0X6KRw) 2017-04-03T15:03Z 22.4M followers, 14.2M engagements "How to read music - Tim Hansen Like an actor's script a sheet of music instructs a musician on what to play (the pitch) and when to play it (the rhythm). Sheet music may look complicated but once you've gotten the hang of a few simple elements like notes bars and clefs you're ready to rock. Tim Hansen hits the instrumental basics you need to read music. TED TED-Ed TEDEducation Tim Hansen Music Sheet music Composition Beats the clef rhythm pitch TED TED-Ed TEDEducation Tim Hansen Music Sheet music Composition Beats the clef rhythm pitch" [YouTube Link](https://youtube.com/watch?v=ZN41d7Txcq0) 2013-07-18T14:58Z 22.4M followers, 7.7M engagements "Can you "see" images in your mind Some people can't - Adam Zeman Learn more at https://brilliant.org/TedEd -- When reading "Alice's Adventures in Wonderland" most readers visualize the queens croquet game play out in their heads. A few might see the scene in vivid detail. However a small fraction of readers have a drastically different experience: within their heads they "see" absolutely nothing. Why do some people have an inability to visualize images Adam Zeman explores the science of aphantasia. Lesson by Adam Zeman directed by Biljana Labovi. Animation by Manon David. Support Our" [YouTube Link](https://youtube.com/watch?v=Z_gV1hEqlA8) 2025-02-18T16:01Z 22.4M followers, 2.4M engagements "Whats the best position to sleep in - Rachel Marie E. Salas Is there a best sleep position Dig into how sleeping on your side back or stomach can impact your body and health. -- Sleep positions go by countless creative names the zombie mountain climber free faller soldier and more. Yet sleep experts typically simplify them into the basic types: side stomach or back. Individual sleep styles are highly personal but how we spend the night affects our bodies and health in several ways. So whats the best position to sleep in Rachel Marie E. Salas investigates. Lesson by Rachel Marie E. Salas" [YouTube Link](https://youtube.com/watch?v=_GI9-J-sE5k) 2025-12-11T16:00Z 22.4M followers, 1.5M engagements "Whats the best way to lift people out of poverty Explore different poverty intervention and aid programs and how direct cash giving can address a community's needs. -- In [----] a nonprofit gave every adult in the Ahenyo village $500. Most families had lived in extreme poverty for generations and this sum was roughly equivalent to their annual salaries. The money came with no strings attached to how it could be spent. Would this lift villagers out of poverty or be another failed philanthropic endeavor Explore aid programs and how they address people's needs. Directed by Jolene Tan. Support Our" [YouTube Link](https://youtube.com/watch?v=_gTgloPR0Aw) 2025-10-23T15:01Z 22.4M followers, 1M engagements "The science of skin color - Angela Koine Flynn View full lesson: https://ed.ted.com/lessons/the-science-of-skin-color-angela-koine-flynn When ultraviolet sunlight hits our skin it affects each of us differently. Depending on skin color itll take only minutes of exposure to turn one person beetroot-pink while another requires hours to experience the slightest change. Whats to account for that difference and how did our skin come to take on so many different hues to begin with Angela Koine Flynn describes the science of skin color. Lesson by Angela Koine Flynn animation by Toms" [YouTube Link](https://youtube.com/watch?v=_r4c2NT4naQ) 2016-02-16T16:32Z 22.4M followers, 3.6M engagements "Are Elvish Klingon Dothraki and Na'vi real languages - John McWhorter View full lesson: http://ed.ted.com/lessons/are-elvish-klingon-dothraki-and-na-vi-real-languages-john-mcwhorter What do Game of Thrones' Dothraki Avatar's Na'vi Star Trek's Klingon and LOTR's Elvish have in common They are all fantasy constructed languages or conlangs. Conlangs have all the delicious complexities of real languages: a high volume of words grammar rules and room for messiness and evolution. John McWhorter explains why these invented languages captivate fans long past the rolling credits. Lesson by John" [YouTube Link](https://youtube.com/watch?v=a5mZ0R3h8m0) 2013-09-26T15:10Z 22.4M followers, 3M engagements "DNA: The book of you - Joe Hanson View full lesson: http://ed.ted.com/lessons/dna-the-book-of-you-joe-hanson Your body is made of cells -- but how does a single cell know to become part of your nose instead of your toes The answer is in your body's instruction book: DNA. Joe Hanson compares DNA to a detailed manual for building a person out of cells -- with [--] chapters (chromosomes) and hundreds of thousands of pages covering every part of you. Lesson by Joe Hanson animation by Nipun.Co Motion Craft. TEDEducation TED-Ed TED Ed Joe Hanson Nipun Sharma Nipun.Co Motion Craft DNA chromosome" [YouTube Link](https://youtube.com/watch?v=aeAL6xThfL8) 2012-11-26T15:59Z 22.4M followers, 683.8K engagements "Can you solve the riddle of Pandoras box - Alex Rosenthal TED-Ed has launched its first ever physical game: Pandora's Legacy Learn more and get your copy here: https://ed.ted.com/pandora -- Pandora is having a decisively bad day. She didnt set out to open the box; if anything shed resisted with every ounce of her will. But her curiosity got the better of her and a cavalcade of evils of every shape and size spilled out. Pandora knows her only chance to fix this is to capture Hope before the imps all escape her home. Can you figure out which one is Hope Alex Rosenthal shows how. Lesson by Alex" [YouTube Link](https://youtube.com/watch?v=asbbhyHBSKU) 2025-04-29T15:00Z 22.4M followers, 616.6K engagements "Cannibalism in the animal kingdom - Bill Schutt Check out Bill Schutt's "Cannibalism: A Perfectly Natural History": http://bit.ly/2HLWjrU View full lesson: https://ed.ted.com/lessons/cannibalism-in-the-animal-kingdom-bill-schutt Until recently scientists thought cannibalism was a rare response to starvation or other extreme stress. Well-known cannibals like the praying mantis and black widow were considered bizarre exceptions. But now we know they more or less represent the rule. Bill Schutt shows how cannibalism can promote the survival of a species by reducing competition culling the weak" [YouTube Link](https://youtube.com/watch?v=bVMVxJJ7P8M) 2018-03-19T15:05Z 22.4M followers, 7M engagements "Was Alexander the Great really that great - Stephanie Honchell Smith Alexander the Great transformed the world during his reign but was he an embattled leader or a ruthless conqueror -- Alexander the Great fundamentally transformed the world during his 13-year reign. He conquered Persia when it was one of the worlds largest empires and he was considered a living demi-god by Egyptians and Greeks. But was he a brilliant embattled leader or a ruthless power-hungry conqueror Stephanie Honchell Smith puts this controversial figure on trial in History vs. Alexander the Great. Lesson by Stephanie" [YouTube Link](https://youtube.com/watch?v=bVjKL1zd-vQ) 2025-12-18T16:00Z 22.4M followers, 284.8K engagements "The psychology of post-traumatic stress disorder - Joelle Rabow Maletis Get informed on the science behind post-traumatic stress disorder PTSD its symptoms and how the brain reacts to trauma. -- Many of us will experience some kind of trauma during our lifetime. Sometimes we escape with no long-term effects. But for millions of people those experiences linger causing symptoms like flashbacks nightmares and negative thoughts that interfere with everyday life. Joelle Rabow Maletis details the science behind post-traumatic stress disorder or PTSD. Lesson by Joelle Rabow Maletis directed by Toms" [YouTube Link](https://youtube.com/watch?v=b_n9qegR7C4) 2018-06-25T15:00Z 22.4M followers, 3.5M engagements "5 tips to improve your critical thinking - Samantha Agoos View full lesson: http://ed.ted.com/lessons/5-tips-to-improve-your-critical-thinking-samantha-agoos Every day a sea of decisions stretches before us and its impossible to make a perfect choice every time. But there are many ways to improve our chances and one particularly effective technique is critical thinking. Samantha Agoos describes a 5-step process that may help you with any number of problems. Lesson by Samantha Agoos animation by Nick Hilditch. Samantha Agoos Nick Hilditch critical thinking decision making how to make decision" [YouTube Link](https://youtube.com/watch?v=dItUGF8GdTw) 2016-03-15T14:58Z 22.4M followers, 11.8M engagements "What is chemical equilibrium - George Zaidan and Charles Morton View full lesson: https://ed.ted.com/lessons/if-molecules-were-people-george-zaidan-and-charles-morton When molecules collide chemical reactions can occur -- causing major structural changes akin to getting a new arm on your face George Zaidan and Charles Morton playfully imagine chemical systems as busy city streets and the colliding molecules within them as your average limb-swapping joes. Lesson by George Zaidan and Charles Morton animation by Neighbor. Charles Morton Alicia Reece Mike Schell chemistry chemical reactions" [YouTube Link](https://youtube.com/watch?v=dUMmoPdwBy4) 2013-07-23T15:09Z 22.4M followers, 1M engagements "What happens to your body at the top of Mount Everest - Andrew Lovering Explore what happens in your body when you dont acclimate to higher altitudes and the dangers of altitude sickness. -- If you teleported from sea level to the top of Mount Everest things would go bad fast. At an altitude of [----] meters you would likely suffocate in minutes. However for people that make this journey over the course of a month its possible to survive at the peak for hours. So what happens in our bodies that allows us to endure this incredible altitude Andrew Lovering investigates. Lesson by Andrew Lovering" [YouTube Link](https://youtube.com/watch?v=daV-tMnZeIw) 2022-06-28T15:01Z 22.4M followers, 2M engagements "The mysterious origins of life on Earth - Luka Seamus Wright Where on Earth did life begin Explore the hydrothermal vents in Earths crust as simple compounds gave way to complex life. -- Billions of years ago simple organic compounds assembled into more complex coalitions that could grow and reproduce. At the time Earth had widespread volcanic activity and a hostile atmosphere that made it almost devoid of a suitable environment for living things. So where did life begin Luka Wright searches for the cradle of life that gave rise to the billions of species that inhabit our planet. Lesson by" [YouTube Link](https://youtube.com/watch?v=de1hiS_XjWg) 2019-08-26T15:00Z 22.4M followers, 1.4M engagements "What would happen if you didnt sleep - Claudia Aguirre View full lesson: http://ed.ted.com/lessons/what-would-happen-if-you-didn-t-sleep-claudia-aguirre In the United States its estimated that [--] percent of adults and [--] percent of adolescents are regularly sleep-deprived. This isnt just a minor inconvenience: staying awake can cause serious bodily harm. Claudia Aguirre shows what happens to your body and brain when you skip sleep. Lesson by Claudia Aguirre animation by TED-Ed. TED TED-Ed TEDx TED Education Claudia Aguirre Sleep Sleep deprivation Neuroscience REM sleep Health Rest Tired Yawn" [YouTube Link](https://youtube.com/watch?v=dqONk48l5vY) 2015-11-12T16:00Z 22.4M followers, 15.1M engagements "6 myths about the Middle Ages that everyone believes - Stephanie Honchell Smith Explore the [--] most common misconceptions about the Middle Ages and find out what living in medieval times was actually like. -- Medieval Europe. Where unbathed sword-wielding knights ate rotten meat thought the Earth was flat defended chastity-belt wearing maidens and tortured their foes with grisly gadgets. Except this is more fiction than fact. So where do all the myths about the Middle Ages come from And what were they actually like Stephanie Honchell Smith debunks common misconceptions about the time period." [YouTube Link](https://youtube.com/watch?v=e9-l34TcV_U) 2023-03-07T16:01Z 22.4M followers, 2.8M engagements "The murderous medieval king who inspired "Macbeth" - Benjamin Hudson Dig into the history that inspired Shakespeares tragedy Macbeth and find out just how much of the play is based on real events. -- Of all Shakespeares plays perhaps none is stranger than Macbeth a parable on power rife with supernatural elements. But according to texts from the 11th century this tragedy has its roots in reality. Whats more other accounts mention witches prophecies and arboreal armies. Which raises the question: just how much of Shakespeares strange story is true Benjamin Hudson investigates. Lesson by" [YouTube Link](https://youtube.com/watch?v=eBYqlmS4A-E) 2025-03-27T15:01Z 22.4M followers, 429.3K engagements "How to overcome your mistakes Explore what prevents us from learning from our failures and how to become more resilient through cultivating a growth mindset. -- People often describe failure as a teachable moment a necessary stumble on our way to improvement. But learning from our mistakes isnt always easy especially when those failures are demoralizing overwhelming or just downright confusing. So what prevents us from turning our mistakes into mastery Explore the biggest obstacles of learning from failure and how to cultivate a growth mindset. Directed by Luiz Stockler. This video made" [YouTube Link](https://youtube.com/watch?v=eBz7iUJu9UM) 2023-10-19T15:00Z 22.4M followers, 1.9M engagements "Why every world map is wrong - Kayla Wolf Dig into the inaccuracies of flat maps and how different map designs can shift our point of view. -- Fourteen Greenlands could fit in Africa but you wouldnt guess it from most maps of the world. The fact is every world map humans have ever made is wrong. Actually its impossible to make a flat map of the whole spherical world 100% right. So why do we bother with these inaccurate maps at all Kayla Wolf explores how even the simplest changes in map design can shift our point of view. Lesson by Kayla Wolf directed by Hernando Bahamon Globizco Studios." [YouTube Link](https://youtube.com/watch?v=eTYsIePy5zg) 2021-03-29T15:00Z 22.4M followers, 969.6K engagements "What is dj vu What is dj vu - Michael Molina What causes the sensation of dj vu Dive into the theories and psychology that could explain why youre having that feeling again. -- You might have felt it -- the feeling that you've experienced something before but in reality the experience is brand new. There are over [--] theories that attempt to explain the phenomenon of dj vu. Michael Molina explains how neuroimaging and cognitive psychology have narrowed down the theories that could explain that feeling you're having.again. Lesson by Michael Molina animation by Josh Harris. Sign up for our" [YouTube Link](https://youtube.com/watch?v=foVMwJtlR5s) 2013-08-28T15:23Z 22.4M followers, 5.2M engagements "How fast is the speed of thought - Seena Mathew Travel into the brain to see how its network of neurons transmit your thoughts and what factors determine how quickly you think. -- Your mortal enemy has captured you and hooked you up to a bizarre experiment. Hes extended your nervous system with one very long neuron to a target about [--] meters away. At some point hes going to fire an arrow. If you can then think a thought to the target before the arrow hits it hell let you go. So who wins that race Seena Mathew examines the speed of thought. Lesson by Seena Mathew directed by Andrew Foerster." [YouTube Link](https://youtube.com/watch?v=g12bxfYVhMk) 2020-11-16T16:00Z 22.4M followers, 1M engagements "Whats so great about the Great Lakes - Cheri Dobbs and Jennifer Gabrys View full lesson: http://ed.ted.com/lessons/what-s-so-great-about-the-great-lakes-cheri-dobbs-and-jennifer-gabrys The North American Great Lakes Huron Ontario Michigan Erie and Superior are so big that they border [--] states and contain [--] quadrillion liters of water. They span forest grassland and wetland habitats supporting a region thats home to [----] species. But how did such a vast and unique geological feature come to be Cheri Dobbs and Jennifer Gabrys takes us all the way back to the Ice Age to find out. Lesson by" [YouTube Link](https://youtube.com/watch?v=gBRcOLcEwF0) 2017-01-10T16:02Z 22.4M followers, 1.8M engagements "Could we create dark matter - Rolf Landua Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/could-we-create-dark-matter-rolf-landua Eighty-five percent of the matter in our universe is dark matter. We dont know what dark matter is made of and weve yet to directly observe it but scientists theorize that we may actually be able to create it in the Large Hadron Collider the most powerful particle collider in the world. So how would that work CERN scientist Rolf Landua explains how to discover a new particle. Lesson by Rolf Landua directed by" [YouTube Link](https://youtube.com/watch?v=h2MlS09KJP4) 2017-08-17T15:08Z 22.4M followers, 1.5M engagements "Einstein's twin paradox explained - Amber Stuver Follow two astronauts into outer space to explore time dilation and Einsteins theory of relativity through the Twin Paradox thought experiment. -- On their 20th birthday identical twin astronauts volunteer for an experiment. Terra will remain on Earth while Stella will board a spaceship. Stellas ship will travel to visit a star that is [--] light-years away then return to Earth. As they prepare to part ways the twins wonder what will happen when theyre reunited. Who will be older Amber Stuver investigates the Twin Paradox. Lesson by Amber Stuver" [YouTube Link](https://youtube.com/watch?v=h8GqaAp3cGs) 2019-09-26T15:01Z 22.4M followers, 5.9M engagements "Why are airplanes slower than they used to be - Alex Gendler Why arent commercial flights getting faster Dig into the technological and environmental problems facing supersonic flight. -- In [----] a British Airways plane flew from New York to London in a record-breaking two hours and fifty-three minutes. Today however passengers flying the same route can expect to spend no less than six hours in the air twice as long. So why in a world where everything seems to be getting faster have commercial flights lagged behind Alex Gendler details the problems facing supersonic flight. Lesson by Alex" [YouTube Link](https://youtube.com/watch?v=hd8tYiLSmn0) 2021-04-15T15:01Z 22.4M followers, 2.6M engagements "Does stress affect your memory - Elizabeth Cox Explore the stages of how your memory stores information and how short-term stress impacts this process. -- You spend weeks studying for an important test. On the big day you wait nervously as your teacher hands it out. Youre working your way through when youre asked to define "ataraxia." You know youve seen the word before but your mind goes blank. What just happened Elizabeth Cox details the complex relationship between stress and memory. Lesson by Elizabeth Cox directed by Artrake Studio. Sign up for our newsletter:" [YouTube Link](https://youtube.com/watch?v=hyg7lcU4g8E) 2018-09-04T15:00Z 22.4M followers, 1.4M engagements "How languages evolve - Alex Gendler View full lesson: http://ed.ted.com/lessons/how-languages-evolve-alex-gendler Over the course of human history thousands of languages have developed from what was once a much smaller number. How did we end up with so many And how do we keep track of them all Alex Gendler explains how linguists group languages into language families demonstrating how these linguistic trees give us crucial insights into the past. Lesson by Alex Gendler animation by Igor Coric. Alex Gendler Igor Coric linguistics language language families language evolution how languages" [YouTube Link](https://youtube.com/watch?v=iWDKsHm6gTA) 2014-05-27T15:00Z 22.4M followers, 3.4M engagements "The ethical dilemma of self-driving cars - Patrick Lin View full lesson: http://ed.ted.com/lessons/the-ethical-dilemma-of-self-driving-cars-patrick-lin Self-driving cars are already cruising the streets today. And while these cars will ultimately be safer and cleaner than their manual counterparts they cant completely avoid accidents altogether. How should the car be programmed if it encounters an unavoidable accident Patrick Lin navigates the murky ethics of self-driving cars. Lesson by Patrick Lin animation by Yukai Du. philosophy thought experiment ethics tech ethics ethics of self-driving" [YouTube Link](https://youtube.com/watch?v=ixIoDYVfKA0) 2015-12-08T16:08Z 22.4M followers, 2.3M engagements "What causes insomnia - Dan Kwartler Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/what-causes-insomnia-dan-kwartler What keeps you up at night Pondering deep questions Excitement about a big trip Stress about unfinished work What if the very thing keeping you awake was stress about losing sleep This seemingly unsolvable loop is at the heart of insomnia the worlds most common sleep disorder. So what is insomnia And is there any way to break the cycle Dan Kwartler details the science of insomnia. Lesson by Dan Kwartler animation by Sharon" [YouTube Link](https://youtube.com/watch?v=j5Sl8LyI7k8) 2018-06-14T15:01Z 22.4M followers, 6.7M engagements "The best way to become good at something might surprise you - David Epstein Are we building skills the wrong way Explore how having a wide range of experience can be better than early specialization. -- Theres a common idea that it takes [-----] hours of practice to become great at something. From an early age we are encouraged to choose our path focus specifically and start racking up those hours. But what if these head starts arent helping us the way we think they do What if theres a better way to excel David Epstein shares how a different approach could set us up for greater success." [YouTube Link](https://youtube.com/watch?v=jLOuMXnM5wk) 2025-11-04T16:01Z 22.4M followers, 1.4M engagements "What if every satellite suddenly disappeared - Moriba Jah Explore what would happen if all of humanitys satellites disappeared and the real-life scenarios that could lead to such a catastrophe. -- What would happen if one day all of humanitys artificial satellites suddenly disappeared Within hours most of the planets traffic would grind to a halt the world economy would shut down and most countries would declare a state of emergency. Even in the best-case scenario our civilization would be set back by decades. So what are the odds of this actually happening Moriba Jah investigates. Lesson by" [YouTube Link](https://youtube.com/watch?v=jVzbs81bDy0) 2021-02-02T16:01Z 22.4M followers, 436.2K engagements "A glimpse of teenage life in ancient Rome - Ray Laurence Sign up for our newsletter and never miss an animation: http://bit.ly/TEDEdNewsletter Welcome to the world of Lucius Popidius Secundus a 17-year old living in Rome in [--] AD. His life is a typical one of arranged marriages coming-of-age festivals and communal baths. Take a look at this exquisitely detailed lesson on life of a typical Roman teenager two thousand years ago. Lesson by Ray Laurence animation by Cognitive Media. TEDEducation TED-Ed TED Ed Ray Laurence Cognitive Media Lucius Popidus Secundus Rome ancient Rome history teenager" [YouTube Link](https://youtube.com/watch?v=juWYhMoDTN0) 2012-10-29T15:00Z 22.4M followers, 12.7M engagements "Why you feel stuck and how to get motivated - Shannon Odell Dig into the psychology of how to overcome your motivational obstacles and regain focus when you feel stuck in achieving your goals. -- Many of us have experienced feeling stuck. People often report feeling highly motivated at the start and end of a project but the middle can feel untethered. It can happen when tackling something as simple as a term paper or as monumental as social inequality or the climate crisis. So are there ways to get unstuck Shannon Odell digs into the psychology of overcoming your motivational obstacles." [YouTube Link](https://youtube.com/watch?v=kD3-DKkiVeA) 2025-02-04T16:01Z 22.4M followers, 1.4M engagements "How did English evolve - Kate Gardoqui View full lesson: http://ed.ted.com/lessons/how-did-english-evolve-kate-gardoqui What is the difference between "a hearty welcome" and "a cordial reception" In a brief action-packed history of the English language Kate Gardoqui explains why these semantically equal phrases evoke such different images. Lesson by Kate Gardoqui animation by Ben Tobitt. Kate Gardoqui Ben Tobitt TEDEducation TED-Ed TED Ed English language English language Saxon Celtic Old English Kate Gardoqui Ben Tobitt TEDEducation TED-Ed TED Ed English language English language Saxon" [YouTube Link](https://youtube.com/watch?v=kIzFz9T5rhI) 2012-11-27T16:02Z 22.4M followers, 1.4M engagements "How did South African Apartheid happen and how did it finally end - Thula Simpson Explore how Dutch and British colonization of South Africa led to Apartheid the strict national policy of racial segregation. -- For [--] years South Africans lived under Apartheid a strict policy of segregation that barred the countrys Black majority from skilled high-paying jobs quality education voting and much more. So how did these laws come to be And how did this era of institutionalized discrimination finally come to an end Thula Simpson explores how colonization led to the national trauma of Apartheid." [YouTube Link](https://youtube.com/watch?v=ke4kVFycpYY) 2023-12-05T16:00Z 22.4M followers, 1.3M engagements "Has there ever been a good dictator - Stephanie Honchell Smith Examine the myth of the benevolent dictator which is a leader who holds absolute power yet only uses it for the common good. -- Under certain conditions the idea of a dictator can sound appealing like when a democracy isnt functioning as it should due to corruption or political polarization. People may believe the solution is a "benevolent dictator" a leader who only uses their absolute power for the common good. But can such a leader actually exist in todays world Stephanie Honchell Smith examines this common myth. Lesson by" [YouTube Link](https://youtube.com/watch?v=kkZ7B-Fv-ck) 2024-05-16T15:01Z 22.4M followers, 1.5M engagements "How sugar affects the brain - Nicole Avena Check out our Patreon page: https://www.patreon.com/teded View full lesson: http://ed.ted.com/lessons/how-sugar-affects-the-brain-nicole-avena When you eat something loaded with sugar your taste buds your gut and your brain all take notice. This activation of your reward system is not unlike how bodies process addictive substances such as alcohol or nicotine -- an overload of sugar spikes dopamine levels and leaves you craving more. Nicole Avena explains why sweets and treats should be enjoyed in moderation. Lesson by Nicole Avena animation by STK" [YouTube Link](https://youtube.com/watch?v=lEXBxijQREo) 2014-01-07T16:04Z 22.4M followers, 19M engagements "Do personality tests work - Merve Emre Examine how popular personality tests like the Myers-Briggs Type Indicator and the Enneagram are designed and their inconsistencies. -- In [----] a mother-daughter duo named Katherine Cook Briggs and Isabel Briggs Myers developed a questionnaire that classified peoples personalities into [--] types. Called the Myers-Briggs Type Indicator or MBTI it would go on to become one of the worlds most widely-used personality tests. But do these tests actually reveal truths about personality Merve Emre examines their design flaws. Lesson by Merve Emre directed by" [YouTube Link](https://youtube.com/watch?v=lN7Fmt1i5TI) 2020-12-22T16:01Z 22.4M followers, 1.3M engagements "Why elephants never forget - Alex Gendler View full lesson: http://ed.ted.com/lessons/why-elephants-never-forget-alex-gendler Its a common saying that elephants never forget. But the more we learn about elephants the more it appears that their impressive memory is only one aspect of an incredible intelligence that makes them some of the most social creative and benevolent creatures on Earth. Alex Gendler takes us into the incredible unforgettable mind of an elephant. Lesson by Alex Gendler animation by Avi Ofer. TED-Ed TED Education TED Ed TED TEDx Elephants Poaching Animal intelligence Tusk" [YouTube Link](https://youtube.com/watch?v=lSXNqsOoURg) 2014-11-13T16:02Z 22.4M followers, 9.3M engagements "Why are cockroaches so hard to kill - Ameya Gondhalekar Dig into the genetic adaptations of cockroaches and find out what makes it so hard to get rid of these tenacious creatures. -- In ancient Egypt there was a spell that declared Be far from me O vile cockroach. Thousands of years later were still trying to oust these insects. But from poison traps to brandished slippers cockroaches seem to weather just about everything we throw at them. So what makes cockroaches so hard to kill Ameya Gondhalekar digs into the genetic wonders of this troublingly tenacious creature. Lesson by Ameya" [YouTube Link](https://youtube.com/watch?v=lkdLg0Nq4SQ) 2022-04-19T15:00Z 22.4M followers, 4.3M engagements "How do tornadoes form - James Spann View full lesson: http://ed.ted.com/lessons/how-do-tornadoes-form-james-spann Tornadoes are the most violent storms on Earth with wind velocities that can exceed [---] miles per hour. How do these terrifying cyclones form Meteorologist James Spann sheds light on the lifespan of tornadoes as they go from supercell thunderstorms to terrible twisters before eventually dissolving back into thin air. Lesson by James Spann animation by Provncia Studio. James Spann Provinia Studio tornado tornadoes supercell how tornadoes form thunderstorms storm storm chasing" [YouTube Link](https://youtube.com/watch?v=lmWh9jV_1ac) 2014-08-19T15:02Z 22.4M followers, 10.6M engagements "The myth behind the Chinese zodiac - Megan Campisi and Pen-Pen Chen Want to support TED-Ed's nonprofit mission Check out our Patreon page: https://www.patreon.com/teded View full lesson: http://ed.ted.com/lessons/the-myth-behind-the-chinese-zodiac-megan-campisi-and-pen-pen-chen Whats your sign In Western astrology its a constellation determined by when your birthday falls in the calendar. But according to the Chinese zodiac () its your shuxiang meaning the animal assigned to your birth year. Of the many myths explaining these animal signs and their arrangement the most enduring one is that of" [YouTube Link](https://youtube.com/watch?v=may2s9j4RLk) 2017-01-26T16:00Z 22.4M followers, 9.4M engagements "Why should you read Moby Dick - Sascha Morrell Dive into Herman Melvilles classic novel Moby Dick the story of Captain Ahabs hunt for revenge against the white whale who bit off his leg. -- A mountain separating two lakes. A room papered floor to ceiling with bridal satins. The lid of an immense snuffbox. These seemingly unrelated images take us on a tour of a sperm whales head in Herman Melvilles "Moby Dick." Though the book features pirates typhoons high-speed chases and giant squid its anything but a conventional seafaring adventure. Sascha Morrell digs into the classic novel. Lesson by" [YouTube Link](https://youtube.com/watch?v=mmoFxVqZ9z4) 2020-05-26T15:01Z 22.4M followers, 1M engagements "Upstairs downstairs: The life of a British maid - Stephanie Honchell Smith Follow Alice Sutton a servant in Edwardian England as she prepares the estate for a visitor and fights for women's suffrage. -- Its just before dawn in [----] at Wroxton Abbey and 16-year-old Alice Suttons mind is already spinning. The underhousemaid has a full day ahead of her as the estate prepares for the evenings guest: Prince Arthur. This is Alices chance to prove herself to her new employers but there are other forces at play. Stephanie Honchell Smith details a day in the life of a servant in Edwardian England." [YouTube Link](https://youtube.com/watch?v=mzREA81VQ34) 2026-01-08T16:00Z 22.4M followers, 416.9K engagements "The myth of Hercules: [--] labors in 8-bits - Alex Gendler Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/the-myth-of-hercules-12-labors-in-8-bits-alex-gendler Hercules son of Zeus and champion of humankind stricken with a temporary curse of madness has just committed the most unspeakable crime imaginable. Seeking to atone for the deaths of his family Hercules must complete twelve impossible tasks that pit him against invincible monsters and unfathomable forces. Alex Gendler retells this epic series of adventures. Lesson by Alex Gendler" [YouTube Link](https://youtube.com/watch?v=nIIjhAuC76g) 2018-09-25T15:00Z 22.4M followers, 7.9M engagements "Is it really that bad to eat cookie dough - Emma Bryce Explore how Salmonella spreads from chickens to humans and learn how this crafty microscopic pathogen makes us sick. -- Salmonella infects millions worldwide each year causing fever stomach cramps and diarrhea. And these effects can be extreme: Salmonella is the leading cause of hospitalizations and deaths from food poisoning. So how does it spread from chickens to humans And how does it make us sick Emma Bryce follows the journey of this crafty pathogen from farm to plate. Lesson by Emma Bryce directed by Denys Spolitak. Support Our" [YouTube Link](https://youtube.com/watch?v=nQf-lystVn4) 2025-09-25T15:03Z 22.4M followers, 563.7K engagements "Cell vs. virus: A battle for health - Shannon Stiles How does your body fight a virus Take a look inside your cells to witness how they produce antibodies and fight to keep you healthy. -- All living things are made of cells. In the human body these highly efficient units are protected by layer upon layer of defense against icky invaders like the cold virus. Shannon Stiles takes a journey into the cell introducing the microscopic arsenal of weapons and warriors that play a role in the battle for your health. Lesson by Shannon Stiles animation by Igor Coric. Animator's website:" [YouTube Link](https://youtube.com/watch?v=oqGuJhOeMek) 2014-04-17T15:12Z 22.4M followers, 12.5M engagements "How do executive orders work - Christina Greer Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/how-do-executive-orders-work-christina-greer On January [--] [----] Abraham Lincoln legally changed the status of over [--] million people from slave to free. But his emancipation proclamation wasnt a law it was an executive order. The framers of the American Constitution made this power available to the executive branch. But what exactly is this tool how does it work and whats the extent of its power Christina Greer explains. Lesson by Christina Greer" [YouTube Link](https://youtube.com/watch?v=oyOf3g-PJ94) 2017-09-18T15:00Z 22.4M followers, 1.7M engagements "The myth of Pandoras box - Iseult Gillespie Find out how students can share their ideas as TED Talks here: http://bit.ly/2zpAQUc View full lesson: https://ed.ted.com/lessons/the-myth-of-pandora-s-box-iseult-gillespie Pandora was the first mortal woman breathed into being by Hephaestus god of fire. The gods gave her gifts of language craftsmanship and emotion. From Zeus she received two gifts: the trait of curiosity and a heavy box screwed tightly shut -- never to be opened. But what treasure could never be seen by human eyes and why was it in her care Iseult Gillespie explores the mystery of" [YouTube Link](https://youtube.com/watch?v=pMdJxVjZMRI) 2019-01-15T15:59Z 22.4M followers, 9.1M engagements "How science fiction can help predict the future - Roey Tzezana View full lesson: http://ed.ted.com/lessons/how-science-fiction-can-help-predict-the-future-roey-tzezana Would you like to know whats in our future Whats going to happen to humanity tomorrow next year or even a millennium from now Well youre not alone. Everyone from governments to military to industry leaders do as well and they all employ people - called futurists - who attempt to forecast the future. Roey Tzezana explains some of the ways that futurists venture to do so. Lesson by Roey Tzezana animation by TED-Ed. Roey Tzezana" [YouTube Link](https://youtube.com/watch?v=paXKoZ1pr5w) 2016-01-26T16:07Z 22.4M followers, 449.3K engagements "Licking bees and pulping trees: The reign of a wasp queen - Kenny Coogan Take a look inside a hive as a wasp queen begins her reign; founding a colony hunting to feed her brood and defending against intruders. -- As the sun rises something royal stirs inside a pile of firewood. It's the wasp queen; one of thousands who mated in late autumn and hibernated through the winter. Now she must emerge into the spring air to begin her reign. This queen is the lone survivor of her old hive and now she must become the foundress of a new one. Kenny Coogan details a year in the life of a wasp queen." [YouTube Link](https://youtube.com/watch?v=q93IfqUbEf4) 2020-01-28T16:00Z 22.4M followers, 3.3M engagements "What happened to trial by jury - Suja A. Thomas View full lesson: http://ed.ted.com/lessons/what-happened-to-trial-by-jury-suja-a-thomas In the United States today juries decide less than 4% of criminal cases and less than 1% of civil cases filed in court. At the same time jury systems in other countries are growing. So what happened in the US And could the disappearance of juries be a good thing Suja A. Thomas explores both sides of this dilemma. Lesson by Suja A. Thomas animation by Globizco. TED TED-Ed TED Ed TED Education Suja A. Thomas Globizco jury trial trial by jury legal system judge" [YouTube Link](https://youtube.com/watch?v=qVoYFYxGJPg) 2017-03-02T16:13Z 22.4M followers, 870.4K engagements "Who built Great Zimbabwe And why - Breeanna Elliott View full lesson: http://ed.ted.com/lessons/who-built-great-zimbabwe-and-why-breeanna-elliott Stretched across a tree-peppered expanse in Southern Africa lies the ruins of Great Zimbabwe a medieval stone city of astounding wealth. Located in the present-day country of Zimbabwe its the site of the second largest settlement ruins in Africa. But its history is controversial defined by decades of dispute about who built it and why. Breeanna Elliott explores the mystery of Great Zimbabwe. Lesson by Breeanna Elliott directed by JodyPrody. TED" [YouTube Link](https://youtube.com/watch?v=quzjmZ-7s6w) 2017-06-22T15:01Z 22.4M followers, 1.3M engagements "What happens to your brain during a migraine - Marianne Schwarz Find out whats happening in the brain when you have a migraine and what we still dont know about this complex disorder. -- A throbbing pounding headache. Bright zigzagging lines across your field of vision. Sensitivity to light lingering fatigue disrupted sleep. While an incapacitating headache is one of the most common symptoms a migraine can include any of these experiences. So what exactly is a migraine And what causes it Marianne Schwarz explores what we know and don't know about this complex disorder. Lesson by Marianne" [YouTube Link](https://youtube.com/watch?v=qwZypa0iKq8) 2021-05-17T15:00Z 22.4M followers, 4.1M engagements "Can you freeze your body and come back to life - Shannon N. Tessier Dig into the field of cryobiology and explore the possibility of humans being frozen and preserved for future resurrection. -- In [----] James Bedford had a plan to cheat death. He was the first person to be cryogenically frozen. This process promised to preserve his body until a theoretical future when humanity could cure any illness and essentially reverse death. So is it possible to freeze a human preserve them indefinitely and then thaw them out Shannon N. Tessier explores the challenges of human cryopreservation. Lesson by" [YouTube Link](https://youtube.com/watch?v=rFGDJH7SZNU) 2023-02-14T16:01Z 22.4M followers, 1.1M engagements "What color is Tuesday Exploring synesthesia - Richard E. Cytowic View full lesson: http://ed.ted.com/lessons/what-color-is-tuesday-exploring-synesthesia-richard-e-cytowic How does one experience synesthesia -- the neurological trait that combines two or more senses Synesthetes may taste the number [--] or attach a color to each day of the week. Richard E. Cytowic explains the fascinating world of entangled senses and why we may all have just a touch of synesthesia. Lesson by Richard E. Cytowic animation by TED-Ed. Richard Cytowic synesthesia synesthete who has synesthesia what is synesthesia" [YouTube Link](https://youtube.com/watch?v=rkRbebvoYqI) 2013-06-10T15:00Z 22.4M followers, 1.9M engagements "How the heart actually pumps blood - Edmond Hui View full lesson: http://ed.ted.com/lessons/how-the-heart-actually-pumps-blood-edmond-hui For most of history scientists weren't quite sure why our hearts were beating or even what purpose they served. Eventually we realized that these thumping organs serve the vital task of pumping clean blood throughout the body. But how Edmond Hui investigates how it all works by taking a closer look at the heart's highly efficient ventricle system. Lesson by Edmond Hui animation by Anton Bogaty. Edmond Hui Anton Bogaty heart Leonardo Da Vinci (Author)" [YouTube Link](https://youtube.com/watch?v=ruM4Xxhx32U) 2014-05-20T15:00Z 22.4M followers, 4.4M engagements "Whats the smartest age - Shannon Odell At what age are you smartest Dig into how your brain development affects your skills at different stages of your life. -- Tomorrow is the annual Brain Clash a decathlon of mental challenges trivia competitions and puzzles. Amir needs a smart and capable teammate and must choose between three people; all of different ages and talents. So who should Amir choose for the contest Shannon Odell breaks down the idea of smart and explores how our brain development impacts our skills at various stages of our lives. Lesson by Shannon Odell directed by Biljana" [YouTube Link](https://youtube.com/watch?v=sbCvQbBi2G8) 2022-10-18T15:01Z 22.4M followers, 2.5M engagements "How much electricity does it take to power the world Discover how much electricity humanity uses and how clean energy sources could help revolutionize our energy supply in the future. -- All around the world millions of people are flipping a switch plugging in and pressing an on button every second. So how much electricity does humanity use And how much will we need in the future Discover how much energy it takes to power the world and how clean energy sources could help revolutionize our electricity supply. Directed by Lisa LaBracio. Animation and art direction: Vicente Nir AIM Creative" [YouTube Link](https://youtube.com/watch?v=tjwrG4Debc4) 2021-03-09T16:00Z 22.4M followers, 474.4K engagements "Whats the big deal with gluten - William D. Chey View full lesson: http://ed.ted.com/lessons/what-s-the-big-deal-with-gluten-william-d-chey If you've been to a restaurant in the last few years youve likely seen the words gluten-free written somewhere on the menu. But what exactly is gluten and why cant some people process it And why does it only seem to be a problem recently William D. Chey unravels the facts behind celiac disease wheat allergies and non-celiac gluten sensitivity. Lesson by William D. Chey animation by Stretch Films Inc. Gluten Nutrition Wheat allergy Celiac disease" [YouTube Link](https://youtube.com/watch?v=uEM2iDT-VAk) 2015-06-02T15:07Z 22.4M followers, 4.2M engagements "How to 3D print human tissue - Taneka Jones Explore the science of bioprinting a type of 3D printing that uses bioink a printable material that contains living cells. -- There are currently hundreds of thousands of people on transplant lists waiting for critical organs like kidneys hearts and livers that could save their lives. Unfortunately there arent enough donor organs available to fill that demand. What if instead of waiting we could create new customized organs from scratch Taneka Jones explores bioprinting a new branch of regenerative medicine. Lesson by Taneka Jones directed by Hype" [YouTube Link](https://youtube.com/watch?v=uHbn7wLN_3k) 2019-10-17T15:00Z 22.4M followers, 843.2K engagements "History vs. Russias most infamous empress - Carolyn Harris Catherine the Great presided over a golden age of Russian expansion but was she a dedicated ruler or a ruthless oppressor -- Catherine the Great Empress of Russia for over three decades used strategic dalliances military might and cutting-edge philosophy to modernize expand and transform the Russian Empire. But was she a dedicated ruler determined to move Russia into the future or a ruthless monarch who oppressed anyone who questioned her Carolyn Harris puts this controversial figure on trial. Lesson by Carolyn Harris directed by" [YouTube Link](https://youtube.com/watch?v=uJ_d-UD0xPE) 2025-10-21T15:00Z 22.4M followers, 276.9K engagements Limited data mode. Full metrics available with subscription: lunarcrush.com/pricing
@teded TED-Ed
TED-Ed posts on YouTube about education, history, science, ted the most. They currently have [----------] followers and [----] posts still getting attention that total [-------] engagements in the last [--] hours.
Engagements: [-------] #
- [--] Week [---------] +4%
- [--] Month [----------] +15%
- [--] Months [-----------] +28%
- [--] Year [-----------] +87%
Mentions: [---] #
- [--] Week [-----] +6.90%
- [--] Month [-----] +5.20%
- [--] Months [-----] +10%
- [--] Year [-----] +74%
Followers: [----------] #
- [--] Week [----------] no change
- [--] Month [----------] +0.45%
- [--] Months [----------] +2.80%
- [--] Year [----------] +6.20%
CreatorRank: [------] #
Social Influence
Social category influence countries 16.16% travel destinations 7.38% finance #5425 technology brands 1.89% social networks 1.15% stocks 0.98% celebrities 0.98% automotive brands 0.82% musicians 0.57% luxury brands 0.25%
Social topic influence education #187, history #704, science #360, ted #7, health #358, in the #4679, how to #3490, the world #1795, can you #396, solve #116
Top accounts mentioned or mentioned by @vibeattractor @breland @gracebowers @voguesfashionvault @info @tonysuccar @godmoneycode @thehiddenpast987 @ucuvfxz23tf6dadwjyrduw @oceanx @bonniemckeeofficial @taylaparx @davidarchie @immerseeducation @nunesbobby @astrowala @mathsphysicslovers @iamsahil_02 @learningjunction @ilknuuuracar
Top Social Posts
Top posts by engagements in the last [--] hours
"The myth of Jason Medea and the Golden Fleece - Iseult Gillespie Follow Jason as he attempts to steal the Golden Fleece from King Aeetes and enlists the help of the king's daughter Medea. (Part Two of the myth of Jason and the Argonauts) -- In Colchis the hide of a mystical flying ram hangs from the tallest oak guarded by a dragon who never sleeps. The only way Jason can pry it from King Aeetes clutches and win back his promised throne is by facing three perilous tasks without the help of the Argonauts. Unbeknownst to the king his daughter Medea was plotting something. Iseult Gillespie shares"
YouTube Link 2020-07-21T14:59Z 22.4M followers, 1.5M engagements
"Why did people wear powdered wigs - Stephanie Honchell Smith Trace the rise and fall of the powdered wig fashion craze from King Louis XIII to the French Revolution in the 18th century. -- Wigs date at least as far back as ancient Egypt where well-regarded hairdressers crafted them into intricate styles. And under certain ancient Roman dynasties womens wigs became particularly ornate. Yet it wasnt until Louis XIII unveiled a magnificent mane in the 17th century that big wigs truly began booming. Stephanie Honchell Smith details the rise and fall of the bewigged fashion craze. Lesson by"
YouTube Link 2024-08-01T14:01Z 22.4M followers, 1M engagements
"How did ancient civilizations make ice cream - Vivian Jiang Trace the history of ice cream from the first accounts of cold desserts in the 1st century to the cream-based treat we know today. -- Ice cream has a unique role in our worlds history culture and cravings. The first accounts of cold desserts date back to the first century in civilizations including ancient Rome Mughal India and Tang Dynasty China. Yet the cream-based delicacy we know today made a much later debut. So how did the delicious sweet treat come to be Vivian Jiang shares the scoop on the history of ice cream. Lesson by"
YouTube Link 2024-05-30T15:00Z 22.4M followers, 2.4M engagements
"The myth of Cupid and Psyche - Brendan Pelsue Check out TED-Ed's Patreon page https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/the-myth-of-cupid-and-psyche-brendan-pelsue Psyche was born so beautiful that she was worshipped as a new incarnation of Venus the goddess of love. But human lovers were too intimidated to approach her and Apollo recommended her father abandon her on a crag where she would marry a cruel and savage serpent-like winged evil. But Psyches story ended up being much more interesting. Brendan Pelsue shares the myth of Cupid and Psyche. Lesson by"
YouTube Link 2017-08-03T15:02Z 22.4M followers, 10.6M engagements
"The myth of Medusa TED-Ed has launched its first ever physical game: Pandora's Legacy Learn more and get your copy here: https://ed.ted.com/pandora -- Medusa transformed into a monstrous Gorgon by a wrathful Athena sought refuge in a hidden cave. Time after time would-be heroes journeyed to the cave to make their names by murdering Medusa but fell to her gaze every time. Until another young man Perseus began his quest for glory. Laura Aitken-Burt shares the myth of Medusa and her infamous power to petrify. Lesson by Laura Aitken-Burt directed by Yael Reisfeld. Support Our Non-Profit Mission"
YouTube Link 2025-05-01T15:00Z 22.4M followers, 789.4K engagements
"The philosophy of Stoicism - Massimo Pigliucci View full lesson: http://ed.ted.com/lessons/the-philosophy-of-stoicism-massimo-pigliucci What is the best life we can live How can we cope with whatever the universe throws at us and keep thriving nonetheless The ancient Greco-Roman philosophy of Stoicism explains that while we may not always have control over the events affecting us we can have control over how we approach things. Massimo Pigliucci describes the philosophy of Stoicism. Lesson by Massimo Pigliucci animation by Compote Collective. TED TED-Ed TED Education TED Ed Massimo Pigliucci"
YouTube Link 2017-06-19T15:00Z 22.4M followers, 11.5M engagements
"An athlete uses physics to shatter world records - Asaf Bar-Yosef View full lesson: http://ed.ted.com/lessons/an-athlete-uses-physics-to-shatter-world-records-asaf-bar-yosef When Dick Fosbury couldn't compete against the skilled high jumpers at his college he tried jumping in a different way -- backwards. Fosbury improved his record immediately and continued to amaze the world with his new technique all the way to Olympic gold. Asaf Bar-Yosef explains the physics behind the success of the now dominant Fosbury Flop. Lesson by Asaf Bar-Yosef animation by NEIGHBOR. Fosbury Flop Dick Fosbury"
YouTube Link 2014-02-18T16:41Z 22.4M followers, 2.2M engagements
"Why mosquitoes bite some people more than others - Maria Elena De Obaldia Explore the science of what attracts mosquitos and find out why mosquitos bite some people more than others. -- Some swear theyre cursed to be hunted by mosquitos while their close-by companions are regularly left unscathed. Are mosquitos really attracted to some people more than others And if so is there anything we can do about it Maria Elena De Obaldia digs into what factors make people tasty targets for these pesky insects. Lesson by Maria Elena De Obaldia directed by Anton Bogaty. This video made possible in"
YouTube Link 2023-09-26T15:00Z 22.4M followers, 1.5M engagements
"Why do we feel nostalgia - Clay Routledge View full lesson: http://ed.ted.com/lessons/why-do-we-feel-nostalgia-clay-routledge Nostalgia was once considered an illness confined to specific groups of people. Today people all over the world report experiencing and enjoying nostalgia. But how does nostalgia work And is it healthy Clay Routledge details the way our understanding of nostalgia has changed since the term was first coined in the late 17th century. Lesson by Clay Routledge animation by Anton Bogaty. Clay Routledge what is nostalgia homesickness why do we miss home memories of things"
YouTube Link 2016-11-21T16:04Z 22.4M followers, 2M engagements
"What yoga does to your body and brain - Krishna Sudhir Explore the ancient tradition of yoga and discover how its blend of physical and mental exercise impacts your health. -- There are many different approaches to modern yoga though most forms have three core elements: physical postures breathing exercises and spiritual contemplation.This blend of physical and mental exercise is widely believed to have a unique set of health advantages. But is yoga actually beneficial to your health Krishna Sudhir examines how this ancient tradition impacts the body and mind. Lesson by Krishna Sudhir"
YouTube Link 2020-06-18T15:00Z 22.4M followers, 4.1M engagements
"The secret society of the Great Dismal Swamp - Dan Sayers Uncover the history of the hidden communities that inhabited the Great Dismal Swamp in North America. -- Straddling Virginia and North Carolina is an area that was once described as the most repulsive of American possessions. By [----] it was known as the Great Dismal Swamp. But while many deemed it uninhabitable recent findings suggest that a hidden society persisted in the Swamp until the mid-1800s. So who lived there And what happened to them Dan Sayers uncovers a lost civilization. Lesson by Dan Sayers directed by Toms"
YouTube Link 2021-08-12T15:00Z 22.4M followers, 342.6K engagements
"The Irish myth of the Giant's Causeway - Iseult Gillespie Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/the-irish-myth-of-the-giant-s-causeway-iseult-gillespie On the coast of Northern Ireland a vast plateau of basalt slabs and columns called the Giants Causeway stretches into the ocean. The scientific explanation for this is that its the result of molten lava contracting and fracturing as it cooled in the wake of a volcanic eruption. But an ancient Irish myth has a different accounting. Iseult Gillespie recounts the Giant's Causeway"
YouTube Link 2018-06-12T14:59Z 22.4M followers, 1.9M engagements
"4 things all great listeners know Dig into different strategies that can improve your listening skills so you can become a high quality listener. -- Its easy to tell when someones not paying attention but it can be surprisingly tricky to know what good listening looks like. Good listening is one of the most important things we can do to improve our relationships develop our worldview and potentially change peoples minds. So what can we do to become better listeners Dig into different strategies that can improve your listening skills. Directed by Maryna Buchynska and action agency. This video"
YouTube Link 2022-11-21T16:01Z 22.4M followers, 2.5M engagements
"A riddle of ice and fire dragons - Henri Picciotto Practice more problem-solving at https://brilliant.org/TedEd -- Its your first day as Center Realms official cartographer and youve already got a big problem. Center Realm is home to three elder dragons: two ice one fire and theyve lived in harmony for centuries. But scouts have sighted three fire dragons and five ice dragons flying towards the region. Can you figure out where to place the new dragons Henri Picciotto shows how. Lesson by Henri Picciotto directed by Igor Coric Artrake Studio. Try your hand at drawing the new dragon regions"
YouTube Link 2022-03-29T14:59Z 22.4M followers, 1.5M engagements
"The myth of Sisyphus - Alex Gendler Download a free audiobook version of "Man's Search for Meaning" and support TED-Ed's nonprofit mission: https://adbl.co/2z7JGWx Check out our full book recommendation: https://bit.ly/2JYUn1y Sisyphus was both a clever ruler who made his city prosperous and a devious tyrant who seduced his niece and killed visitors to show off his power. While his violation of the sacred hospitality tradition greatly angered the gods it was Sisyphus reckless confidence that proved to be his downfall -- resulting in Zeus condemning him for all eternity. Alex Gendler shares"
YouTube Link 2018-11-13T16:01Z 22.4M followers, 8.8M engagements
"Can you solve the monster duel riddle - Alex Gendler Practice more problem-solving at https://brilliant.org/TedEd/ -- Youve come a long way to compete in the great Diskymon league and prove yourself a Diskymon master. Now that youve made it to the finals youre up against some tough competition. In round one youll face a single opponent and get to choose your disk before she picks from the remaining two. Can you choose the one that gives you the best chance of winning Alex Gendler shows how. Lesson by Alex Gendler directed by Artrake Studio. Support Our Non-Profit Mission"
YouTube Link 2020-12-08T16:00Z 22.4M followers, 4M engagements
"Can saunas make you live longer - Max G. Levy Explore how saunas can affect your body and dig into the health benefits and limitations of this millennia-old tradition. -- Finnish sauna Roman balneae Japanese onsen and Indigenous American sweat lodges are just a few examples of how cultures across the globe have long considered exposure to extreme temperatures therapeutic. But today scientists are only just beginning to unravel how and why this may be the case. So what exactly is happening in your body when you feel the heat Max G. Levy investigates. Lesson by Max G. Levy directed by Noam"
YouTube Link 2025-08-21T15:00Z 22.4M followers, 1.3M engagements
"How do antidepressants work - Neil R. Jeyasingam Dig into the discovery of antidepressant drugs how they work and what we still dont know about depression. -- In the 1950s the discovery of two new drugs sparked what would become a multi-billion dollar market for antidepressants. Neither drug was intended to treat depression at all many doctors and scientists believed psychotherapy was the only approach to treatment. Neil R. Jeyasingam details the decades-long journey that followed and how it revolutionized our understanding of depression. Lesson by Neil R. Jeyasingam directed by Skirmanta"
YouTube Link 2021-03-18T15:01Z 22.4M followers, 4.6M engagements
"Could we actually live on Mars - Mari Foroutan View full lesson: https://ed.ted.com/lessons/could-we-actually-live-on-mars-mari-foroutan#watch There's a lot of talk these days about when and how we might all move to Mars. But what would it actually be like to live there Mari Foroutan details the features of Mars that are remarkably similar to those of Earth and those that can only be found on the red planet. Lesson by Mari Foroutan animation by Nick Hilditch. Mars Water Oxygen Geography Space Outer space Space exploration Colonization of space Life on Mars Mars Water Oxygen Geography Space"
YouTube Link 2015-08-24T15:35Z 22.4M followers, 2.1M engagements
"Why was bloodletting so popular - Stephanie Honchell Smith Trace the history of bloodletting a medical practice dating back to ancient Greece and its continued use into the 19th century. -- Bloodletting was a pervasive medical practice that dates as far back as ancient Greece and continued well into the 19th century. Physicians like Hippocrates believed bad health could be attributed to a fluid imbalance and recommended bloodletting to help reset the body's balance. So why did bloodletting stick around so long Stephanie Honchell Smith digs into its popularity and shortcomings. Lesson by"
YouTube Link 2025-06-17T15:00Z 22.4M followers, 276.8K engagements
"How bacteria "talk" - Bonnie Bassler View full lesson: http://ed.ted.com/lessons/how-bacteria-talk-bonnie-bassler Bonnie Bassler discovered that bacteria "talk" to each other using a chemical language that lets them coordinate defense and mount attacks. The find has stunning implications for medicine industry -- and our understanding of ourselves. Talk by Bonnie Bassler. TED TED Talk TEDEducation TED-Ed Ed TED TED Talk TEDEducation TED-Ed Ed"
YouTube Link 2013-02-09T16:22Z 22.4M followers, 727K engagements
"Why do we have museums - J. V. Maranto View full lesson: http://ed.ted.com/lessons/why-do-we-have-museums-j-v-maranto Museums have been a part of human history for over [----] years -- but they weren't always like the ones we visit today. J. V. Maranto uncovers the evolution of museums from the first museum in [---] BC (curated by a princess) to PT Barnums freak shows and beyond. Lesson by J. V. Maranto animation by Zedem Media. TED TED-Ed TEDx Museums Science Art Anthropology Natural history Iraq Sculpture Mosaic Muses Mesopotamia Ennigaldi-Nanna E-Gig-Par Gladiators Wunderkammers Menagerie"
YouTube Link 2015-02-05T16:13Z 22.4M followers, 613.5K engagements
"Everything you need to know to read "Frankenstein" - Iseult Gillespie Explore Mary Shelley's Frankenstein which tells the story of a scientist who builds a creature from reanimated body parts. -- In [----] Lord Byron proposed a challenge to a few literary guests he had gathered in his house on Lake Geneva: Who could write the most chilling ghost story This question sparked an idea in eighteen-year-old Mary Shelley who over the next few months crafted the story of Frankenstein. Iseult Gillespie shares everything you need to know to read Mary Shelleys classic novel. Lesson by Iseult Gillespie"
YouTube Link 2017-02-23T16:00Z 22.4M followers, 2M engagements
"A brie(f) history of cheese - Paul Kindstedt Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/a-brie-f-history-of-cheese-paul-s-kindstedt Before empires and royalty before pottery and writing before metal tools and weapons there was cheese. As early as [----] BCE Neolithic farmers began a legacy of cheesemaking almost as old as civilization. Today the world produces roughly [--] billion kilograms of cheese a year shipped and consumed around the globe. Paul Kindstedt shares the history of one of our oldest and most beloved foods. Lesson by Paul"
YouTube Link 2018-12-13T16:00Z 22.4M followers, 20.2M engagements
"A brief history of cannibalism - Bill Schutt Human cannibalism is a lot more common than you might think. Dive into its complex history and see its uses in medicine cultural rituals and in times of survival. -- 15th century Europeans believed they had hit upon a miracle cure: a remedy for epilepsy hemorrhage bruising nausea and virtually any other medical ailment. It was a brown powder known as mumia and was made by grinding up mummified human flesh. But just how common is human cannibalism and how do cultures partake in it Bill Schutt explores the complex history of cannibalism. Lesson by"
YouTube Link 2019-07-25T15:01Z 22.4M followers, 5.3M engagements
"The psychology of narcissism - W. Keith Campbell View full lesson: http://ed.ted.com/lessons/the-psychology-of-narcissism-w-keith-campbell Narcissism isnt just a personality type that shows up in advice columns; its actually a set of traits classified and studied by psychologists. But what causes it And can narcissists improve on their negative traits W. Keith Campbell describes the psychology behind the elevated and sometimes detrimental self-involvement of narcissists. Lesson by W. Keith Campbell animation by TOGETHER. W. Keith Campell TOGETHER narcissism narcissistic personality disorder"
YouTube Link 2016-02-23T16:20Z 22.4M followers, 15.9M engagements
"Where do math symbols come from - John David Walters Sign up for our newsletter here: https://ed.ted.com/newsletter View full lesson: https://ed.ted.com/lessons/where-do-math-symbols-come-from-john-david-walters Math is full of symbols: lines dots arrows English letters Greek letters superscripts subscripts . it can look like an illegible jumble. Where did all of these symbols come from John David Walters shares the origins of mathematical symbols and illuminates why theyre still so important in the field today. Lesson by John David Walters directed by Chris Bishop. Thank you so much to our"
YouTube Link 2017-10-30T15:02Z 22.4M followers, 2.7M engagements
"One of the most banned books of all time - Mollie Godfrey Explore why Maya Angelous memoir I Know Why The Caged Bird Sings became one of the most frequently banned books of all time. -- In [----] a school district removed one of American literatures most acclaimed works from its curriculum. Parents pushing for the ban said the book was both sexually explicit and anti-white. The book at the center of this debate was Maya Angelous I Know Why The Caged Bird Sings. Why was the memoir so controversial Mollie Godfrey digs into one of the most banned books of all time. Lesson by Mollie Godfrey"
YouTube Link 2023-02-21T16:01Z 22.4M followers, 856.6K engagements
"Can you solve the computer virus riddle - James Tanton Practice more problem-solving at https://brilliant.org/TedEd -- Your antivirus squad is up against a code thats hijacked your mainframe. What youve learned from other infected systems right before they went dark is that it likes to toy with antivirus agents in a very peculiar way and youre the agent thats been selected to go up against the malware. Can you figure out which disk that runs your mainframe has been corrupted James Tanton shows how. Lesson by James Tanton directed by Igor Coric Artrake Studio. Support Our Non-Profit Mission"
YouTube Link 2021-10-19T15:01Z 22.4M followers, 1.4M engagements
"No one really knows what a tree is - Max G. Levy Dig into the system that helps scientists distinguish trees from other varieties of plants and what characteristics make a tree. -- Plants assume a variety of forms and trees are just one of them. What makes or breaks a tree can come down to some pretty specific characteristics based on how the plant develops as a result of how it evolved. Trees dont all comprise one closely related group like insects or mammals. So how exactly do trees get classified as trees Max G. Levy explains what distinguishes these woody plants. Lesson by Max G. Levy"
YouTube Link 2025-04-17T15:23Z 22.4M followers, 500.9K engagements
"How the world's longest underwater tunnel was built - Alex Gendler Discover how the English Channel Tunnel was built and the engineering challenges of building a [---] kilometer long tunnel underwater. -- Flanked by two powerful nations the English Channel has long been one of the worlds most important maritime passages. Yet for most of its history crossing was a dangerous prospect. Engineers proposed numerous plans for spanning the gap including a design for an underwater passage more than twice the length of any existing tunnel. Alex Gendler details the creation of the Channel Tunnel. Lesson"
YouTube Link 2020-03-30T15:00Z 22.4M followers, 4M engagements
"How many ways can you arrange a deck of cards - Yannay Khaikin View full lesson: http://ed.ted.com/lessons/how-many-ways-can-you-arrange-a-deck-of-cards-yannay-khaikin One deck. Fifty-two cards. How many arrangements Let's put it this way: Any time you pick up a well shuffled deck you are almost certainly holding an arrangement of cards that has never before existed and might not exist again. Yannay Khaikin explains how factorials allow us to pinpoint the exact (very large) number of permutations in a standard deck of cards. Lesson by Yannay Khaikin animation by The Moving Company Animation"
YouTube Link 2014-03-27T15:06Z 22.4M followers, 1.7M engagements
"Why is it so hard to break a bad habit Explore the psychology behind how good and bad habits are formed and get tips on how to manage these behaviors. -- Many people deal with a nail-biting habit at some point in their lives. Some will go to great lengths to try to stop employing strategies like dipping their hands in salt or wearing gloves. And while not all of us are nail-biters most of us do have a habit wed like to kick. So what's the best way to break one Explore how habits are formed and discover tips on how to manage these behaviors. Directed by Sacha Beeley. This video made possible"
YouTube Link 2023-08-31T15:01Z 22.4M followers, 1.3M engagements
"Can you solve the fantasy election riddle - Dennis E. Shasha Practice more problem-solving at https://brilliant.org/TedEd -- After much debate the realm has decided dragon jousting may not be the best way to choose its leaders and has begun transitioning to democracy. Your company was hired to survey the citizens of the land and predict which candidate will win. Theres a lot riding on this: if you get it wrong heads well your head will quite literally roll. Can you predict the winner Dennis Shasha shows how. Lesson by Dennis E. Shasha directed by Igor Coric Artrake Studio. Support Our"
YouTube Link 2021-03-25T15:00Z 22.4M followers, 1.9M engagements
"Why do people have seasonal allergies - Eleanor Nelsen View full lesson: http://ed.ted.com/lessons/why-do-some-people-have-seasonal-allergies-eleanor-nelsen Ah spring. Grass growing flowers blooming trees budding. For those with allergies though this explosion of new life probably inspires more dread than joy. So whats behind this annual onslaught of mucus Eleanor Nelsen explains what happens when your immune system goes rogue. Lesson by Eleanor Nelson animation by TED-Ed. Seasonal allergies Sneeze Allergic reaction Pollen Immune system Hay fever Allergic Rhinitis antibodies antihistamine"
YouTube Link 2016-05-26T14:57Z 22.4M followers, 582.4K engagements
"What is obesity - Mia Nacamulli View full lesson: http://ed.ted.com/lessons/what-is-obesity-mia-nacamulli Obesity is an escalating global epidemic. It substantially raises the probability of diseases like diabetes heart disease stroke high blood pressure and cancer. But what is the distinction between being overweight and being obese And how does a person become obese Mia Nacamulli explores obesity. Lesson by Mia Nacamulli animation by Kozmonot Animation Studio. Mia Nacamulli Kozmonot Animation Studio WORKPLAYWORK Cem Misirlioglu Obesity Obesity epidemic Public health healthy eating nutrition"
YouTube Link 2016-06-30T15:02Z 22.4M followers, 1.2M engagements
"How smart are dolphins - Lori Marino View full lesson: http://ed.ted.com/lessons/how-smart-are-dolphins-lori-marino Dolphins are one of the smartest animal species on Earth. In fact their encephalization quotient (their brain size compared to the average for their body size) is second only to humans. But exactly how smart are they Lori Marino details some incredible facts about dolphins. Lesson by Lori Marino animation by Zedem Media. Lori Marino Zedem Media Dolphins Animal intelligence Conservation Neuroscience Animal communication Doctor Doolittle TED TED-Ed TEDx TED Education Animal"
YouTube Link 2015-08-31T15:04Z 22.4M followers, 3.5M engagements
"The greatest mathematician that never lived - Pratik Aghor Dig into the mystery of Nicolas Bourbaki one of the most influential mathematicians of all time who never actually existed. -- When Nicolas Bourbaki applied to the American Mathematical Society in the 1950s he was already one of the most influential mathematicians of his time. Hed published articles in international journals and his textbooks were required reading. Yet his application was firmly rejected for one simple reason: Nicolas Bourbaki did not exist. How is that possible Pratik Aghor digs into the mystery. Lesson by Pratik"
YouTube Link 2020-07-06T15:00Z 22.4M followers, 2.9M engagements
"A brief history of toilets - Francis de los Reyes Explore the history of the toilet and how waste management has evolved from from ancient Mesopotamia to modern day. -- On sunny days citizens of ancient Rome could be found exchanging news and gossip while attending to more urgent business at the public latrines. Today most cultures consider trips to the restroom to be a more private occasion. But even when going alone our shared sewage infrastructure is one of the most pivotal inventions in human history. Francis de los Reyes shares the history of the toilet. Lesson by Francis de los Reyes"
YouTube Link 2021-06-15T15:01Z 22.4M followers, 6M engagements
"Can you survive a Komodo dragon bite - Achmad Ariefiandy Dig into what we know about Komodo dragons and find out what you should do if you encounter these giant lizards in the wild. -- Clambering through the bush on one of Indonesias Lesser Sunda Islands suddenly you spy a Komodo dragon in the clearing ahead. Forked tongue flickering; sharp saw-like teeth glimmering; and strong scaly body stretching up to [--] meters Komodo dragons are formidable. So what should you do Are you doomed Achmad Ariefiandy shares what we know about the world's largest lizards. Lesson by Achmad Ariefiandy directed by"
YouTube Link 2025-05-20T15:00Z 22.4M followers, 903.3K engagements
"How to enter flow state Explore the defining features of being in a flow state and get tips on how you can find flow in your daily life. -- Flow is more than just concentrating or paying attention; it's a unique mental state of effortless engagement. And those who more frequently experience flow report higher levels of positive emotions creativity and feelings of accomplishment. But what exactly is flow And how can we find it in our daily lives Explore steps you can take to increase your chances of finding flow. Directed by Leah Putnam. This video made possible in collaboration with Character"
YouTube Link 2023-07-27T15:01Z 22.4M followers, 2.6M engagements
"The myth of the boiling frog Explore how greenhouse gas emissions impact global warming and why its necessary to get emissions down to net zero. -- Since [----] global average temperatures have risen by [--] degree Celsius. That may not sound like a lot but it is. Why [--] degree is an average. Many places have already gotten much warmer and if average temperatures increase one more degree the coldest nights in the Arctic might get [--] degrees warmer. So how did we get here And what can be done Explore the challenges of net zero emissions. Directed by Lisa LaBracio. Animation and art direction by Lusa"
YouTube Link 2021-02-16T16:00Z 22.4M followers, 1.7M engagements
"How bones make blood - Melody Smith Dig into the science of how bone marrow transplants work and find out how you could become a donor by visiting https://join.bethematch.org/teded -- Bones might seem rock-solid but theyre actually quite porous inside. Most of the large bones of your skeleton have a hollow core filled with soft bone marrow. Marrow's most essential elements are blood stem cells and for patients with advanced blood cancers like leukemia and lymphoma the best chance for a cure is often a bone marrow transplant. How does this procedure work Melody Smith explains. Lesson by Melody"
YouTube Link 2020-01-27T16:01Z 22.4M followers, 959.3K engagements
"How the food you eat affects your gut - Shilpa Ravella View full lesson: http://ed.ted.com/lessons/how-the-food-you-eat-affects-your-gut-shilpa-ravella The bacteria in our guts can break down food the body cant digest produce important nutrients regulate the immune system and protect against harmful germs. And while we cant control all the factors that go into maintaining a healthy gut microbiome we can manipulate the balance of our microbes by paying attention to what we eat. Shilpa Ravella shares the best foods for a healthy gut. Lesson by Shilpa Ravella animation by Andrew Foerster. TED"
YouTube Link 2017-03-23T15:07Z 22.4M followers, 7M engagements
"What does it mean to be a refugee - Benedetta Berti and Evelien Borgman View full lesson: http://ed.ted.com/lessons/what-does-it-mean-to-be-a-refugee-benedetta-berti-and-evelien-borgman About [--] million people around the globe have been forced to leave their homes to escape war violence and persecution. The majority have become Internally Displaced Persons meaning they fled their homes but are still in their own countries. Others referred to as refugees sought shelter outside their own country. But what does that term really mean Benedetta Berti and Evelien Borgman explain. Lesson by"
YouTube Link 2016-06-16T15:00Z 22.4M followers, 1.6M engagements
"A day in the life of an ancient Egyptian doctor - Elizabeth Cox Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/a-day-in-the-life-of-an-ancient-egyptian-doctor-elizabeth-cox Its another sweltering morning in Memphis Egypt. As the sunlight brightens the Nile Peseshet checks her supplies. Honey garlic cumin acacia leaves cedar oil -- shes well stocked with the essentials she needs to treat her patients. Elizabeth Cox outlines a day in the life of an ancient Egyptian doctor. Lesson by Elizabeth Cox animation by Echo Bridge. Thank you so much"
YouTube Link 2018-07-19T15:12Z 22.4M followers, 6.7M engagements
"Why are eating disorders so hard to treat - Anees Bahji Dig into the psychiatric conditions of eating disorders and explore the complex effects they have on the body and mind. -- Globally about 10% of people will experience an eating disorder during their lifetime. And yet eating disorders are profoundly misunderstood. Misconceptions about everything from symptoms to treatment make it difficult to navigate an eating disorder or support someone you love as they do so. Anees Bahji shares what is and isnt true about eating disorders. Lesson by Anees Bahji directed by Laura Jayne Hodkin. Support"
YouTube Link 2022-05-19T15:00Z 22.4M followers, 2M engagements
"Titan of terror: The dark imagination of H.P. Lovecraft - Silvia Moreno-Garca Dive into the stories of horror savant H.P. Lovecraft whose fantastical tales such as The Call of Cthulhu created a new era of Gothic horror. -- Arcane books of forbidden lore disturbing secrets in the family bloodline and terrors so unspeakable the very thought of them might drive you mad. These have become standard elements in modern horror stories. But they were largely popularized by a single author: H.P. Lovecraft whose name has become synonymous with the terror he inspired. Silvia Moreno-Garca dissects the"
YouTube Link 2019-04-23T15:00Z 22.4M followers, 2.6M engagements
"The Turing test: Can a computer pass for a human - Alex Gendler View full lesson: http://ed.ted.com/lessons/the-turing-test-can-a-computer-pass-for-a-human-alex-gendler What is consciousness Can an artificial machine really think For many these have been vital considerations for the future of artificial intelligence. But British computer scientist Alan Turing decided to disregard all these questions in favor of a much simpler one: Can a computer talk like a human Alex Gendler describes the Turing test and details some of its surprising results. Lesson by Alex Gendler animation by Patrick"
YouTube Link 2016-04-25T15:17Z 22.4M followers, 1.8M engagements
"The hidden treasures of Timbuktu - Elizabeth Cox Dig into the ancient manuscripts scrolls and books of Timbuktu and find out why theyve been hidden for centuries. -- On the edge of the vast Sahara desert citizens snuck out of the city of Timbuktu and took to the wilderness. They buried chests in the desert sand hid them in caves and sealed them in secret rooms. Inside these chests was a treasure more valuable than gold: the citys ancient books. Why were they hiding these priceless manuscripts Elizabeth Cox digs into the literary tradition of Timbuktu. Lesson by Elizabeth Cox directed by AIM"
YouTube Link 2020-10-22T15:00Z 22.4M followers, 1M engagements
"How many verb tenses are there in English - Anna Ananichuk Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/how-many-verb-tenses-are-there-in-english-anna-ananichuk How many different verb tenses are there in a language like English At first the answer seems obvious theres past present and future. But it isn't quite that simple. Anna Ananichuk explains how thanks to something called grammatical aspect each of those time periods actually divides further. Lesson by Anna Ananichuk directed by Luke Rotzler. Thank you so much to our patrons for"
YouTube Link 2017-11-06T16:06Z 22.4M followers, 962.3K engagements
"The beauty of data visualization - David McCandless View full lesson: http://ed.ted.com/lessons/david-mccandless-the-beauty-of-data-visualization David McCandless turns complex data sets like worldwide military spending media buzz and Facebook status updates into beautiful simple diagrams that tease out unseen patterns and connections. Good design he suggests is the best way to navigate information glut -- and it may just change the way we see the world. Talk by David McCandless. TEDEducation TED-Ed TED Ed David McCandless design data data visualization Facebook media set TEDEducation TED-Ed"
YouTube Link 2012-11-23T17:14Z 22.4M followers, 1.6M engagements
"Can you solve the penniless pilgrim riddle - Daniel Finkel If you enjoy our riddles we highly recommend reading "The Number Devil": https://amzn.to/2kO7S8P Check out our book rec page to learn more: http://bit.ly/2JqwgLE View full lesson: https://ed.ted.com/lessons/can-you-solve-the-penniless-pilgrim-riddle-daniel-finkel After months of travel youve arrived at Duonia home to the famous temple thats the destination of your pilgrimage. The walk from the welcome center to the temple isn't a long one . but theres a problem. Can you outsmart the city's imposed tax and make it to the temple without"
YouTube Link 2018-06-04T15:03Z 22.4M followers, 7M engagements
"Can you solve the passcode riddle - Ganesh Pai View full lesson: http://ed.ted.com/lessons/can-you-solve-the-passcode-riddle-ganesh-pai In a dystopian world your resistance group is humanitys last hope. Unfortunately youve all been captured by the tyrannical rulers and brought to the ancient coliseum for their deadly entertainment. Will you be able to solve the passcode riddle and get everyone out safely Ganesh Pai shows how. Lesson by Ganesh Pai animation by Jun Zee Myers. Ganesh Pai Jun Zee Myers Addison Anderson Can you solve the passcode riddle passcode riddle escape from hell riddle"
YouTube Link 2016-07-07T14:59Z 22.4M followers, 10.2M engagements
"The most dangerous elements on the periodic table - Shannon Odell Learn more at https://brilliant.org/TedEd -- Within the periodic table loom many potential hazardous elements. Some elements are dangerous due to their toxicity. Others are dangerous because of how they respond react or even explode in the outside environment. And perhaps the most threatening elements are those that silently emit energy. So which substances on the periodic table are the most dangerous Shannon Odell investigates. Lesson by Shannon Odell directed by Anton Bogaty. This video made possible in collaboration with"
YouTube Link 2024-08-06T15:02Z 22.4M followers, 874.3K engagements
"What are truffles and why are they so expensive - Carolyn Beans Dig into the truffles unique and mysterious biology to find out what makes them so rare and the limitations of farming them. -- Truffles are one of the worlds most expensive foods in part because global demand often outstrips supply. And truffles are becoming even more rare and more expensive as deforestation and climate change shrink their suitable terrain. But why are these fungi so rare And why dont we just farm more of them Carolyn Beans digs into the truffles unique and somewhat mysterious biology. Lesson by Carolyn Beans"
YouTube Link 2025-09-09T15:01Z 22.4M followers, 610.4K engagements
"Ugly History: Witch Hunts - Brian A. Pavlac Uncover the history of the witch hunts that swept through Europe and the American colonies from the 15th century until the 18th century. -- In the German town of Nrdlingen in [----] innkeeper Maria Hll found herself accused of witchcraft. She was arrested for questioning and denied the charges. She insisted she wasnt a witch through [--] rounds of torture before her accusers finally released her. Other accused witches werent so lucky." Why did these witch hunts occur Brian A. Pavlac digs into this horrific chapter in human history. Lesson by Brian A."
YouTube Link 2019-06-11T15:00Z 22.4M followers, 2.3M engagements
"A brief history of dogs - David Ian Howe Trace the history of how wolves one of humanitys oldest rivals evolved into the domesticated dogs we call mans best friend. -- Since their emergence over [------] years ago modern humans have established communities all over the planet. But they didnt do it alone. Whatever corner of the globe you find humans in today youre likely to find another species as well: dogs. So how did one of our oldest rivals the wolf evolve into mans best friend David Ian Howe traces the history of humanitys first domesticated animal. Lesson by David Ian Howe directed by"
YouTube Link 2019-03-26T15:02Z 22.4M followers, 3.8M engagements
"Why are beavers obsessed with dams - Glynnis Hood Explore how beavers build their impressive dams and what impact these structures have on the surrounding environment. -- Nestled in the forests of Canada sits the worlds longest beaver dam. This 850-meter-long structure is large enough to be seen in satellite imagery and has dramatically transformed the region creating a pond containing [--] million liters of water. But dams of any size can have huge impacts on their environment. So how exactly do beavers build these impressive structures Glynnis Hood investigates. Lesson by Glynnis Hood"
YouTube Link 2023-01-05T16:00Z 22.4M followers, 578.5K engagements
"Can you solve the secret werewolf riddle - Dan Finkel Practice more problem-solving at https://brilliant.org/TedEd/ Signup to receive the bonus riddle's solution: https://brilliant.org/TedEdWerewolf/ Youre on the trail of a werewolf thats been terrorizing your town. After months of detective work youve narrowed your suspects to one of five people. Youve invited them to dinner with a simple plan: to slip a square of a rare antidote into each of their dinners. Unfortunately you only have one square left. Can you divide it into perfect fifths and cure the werewolf Dan Finkel shows how. Lesson by"
YouTube Link 2018-11-08T15:59Z 22.4M followers, 4.2M engagements
"Run sail or hide How to survive the destruction of Pompeii - Gary Devore Download a free audiobook version of Into Thin Air and support TED-Ed's nonprofit mission: https://www.audible.com/ted-ed -- Its a bustling day in Pompeii. After a quick visit to the market Fabia spots her brothers Lucius and Marcus crossing the Forum. The siblings begin discussing Lucius wedding but a deafening boom interrupts them. They watch Vesuvius spew smoke ash and rock and realize theyve been living in the shadow of a volcano. Gary Devore follows the siblings as they attempt to survive the disaster. Lesson by"
YouTube Link 2021-05-20T15:00Z 22.4M followers, 2.9M engagements
"Can you solve the jail break riddle - Dan Finkel Youre a bank robber trying to escape from jail. Can you solve the riddle to get past the fence to freedom -- Your timing made you and your partner infamous bank robbers. Now you need to use that timing to break out of jail. Your partner is about to flash you a signal and exactly [--] seconds later the electric fence circuit will short out. Then you notice that your watch is broken and all you have are two 1-minute fuses in your pocket. Can you time your escape and get free Dan Finkel shows how. Lesson by Dan Finkel directed by Artrake Studio."
YouTube Link 2019-02-26T15:59Z 22.4M followers, 4.7M engagements
"The carbon cycle - Nathaniel Manning View full lesson: http://ed.ted.com/lessons/the-carbon-cycle-nathaniel-manning What exactly is the carbon cycle Nathaniel Manning provides a basic look into the cyclical relationship of carbon humans and the environment. Lesson by Nathaniel Manning animation by Jill Johnston. Nathaniel Manning TEDeducation TED-Ed TED Ed Jill Johnston climate change carbon carbon cycle Nathaniel Manning TEDeducation TED-Ed TED Ed Jill Johnston climate change carbon carbon cycle"
YouTube Link 2012-10-02T14:56Z 22.4M followers, 787.1K engagements
"First person vs. Second person vs. Third person - Rebekah Bergman Discover how point of view can transform a story and find out how to choose between first second and third person in your writing. -- Who is telling a story and from what perspective are some of the most important choices an author makes. Told from a different point of view a story can transform completely. Third person first person and second person perspectives each have unique possibilities and constraints. So how do you choose a point of view for your story Rebekah Bergman explores the different ways to focus a story."
YouTube Link 2020-06-25T15:00Z 22.4M followers, 1.4M engagements
"Eli the eel: A mysterious migration - James Prosek View full lesson: http://ed.ted.com/lessons/eli-the-eel-a-mysterious-migration-james-prosek They're slippery. They're slithery. And while they totally look like underwater snakes eels are in fact unique fish that can breathe through their skin and even survive out of water. James Prosek tracks the life journey of Eli the Anguilla eel as she (yes she) travels her mysterious "backward" migration from the sea to fresh water and back again. Lesson by James Prosek animation by Cinematic. James Prosek Cinematic Veronica Wallenberg TED TED-Ed TED Ed"
YouTube Link 2014-02-10T16:09Z 22.4M followers, 1.1M engagements
"The Fijian myth of the greedy god - Raiana McKinney and Esther Wozniak Dig into the Fijian myth of Dakuwaqa the shape-shifting shark god who is determined to take over all of Fiji's islands. -- Long ago the ancestral gods of Fiji settled on the Pacific archipelago. They eventually metamorphosed into various forms with the god Dakuwaqa transforming into a shark. But he was unsatisfied. He became proud and greedy and wanted to establish himself as the mightiest god and dominate all of Fijis islands. Raiana McKinney and Esther Wozniak share the tale of Dakuwaqas quest for power. Lesson by Raiana"
YouTube Link 2024-02-13T16:00Z 22.4M followers, 354.7K engagements
"How to unboil an egg - Eleanor Nelsen View full lesson: http://ed.ted.com/lessons/how-to-unboil-an-egg-eleanor-nelsen Its so obvious that its practically proverbial: you cant unboil an egg. But actually it turns out that you can -- sort of. Eleanor Nelsen explains the process by which mechanical energy can undo what thermal energy has done. Lesson by Eleanor Nelsen animation by Provincia Studio. TED TEd-Ed TEDx TED Education Egg Thermal energy Mechanical energy Protein Chemistry Chemical bonds Principal of microscopic reversability Eleanor Nelsen Provincia Studio TED TEd-Ed TEDx TED Education"
YouTube Link 2015-04-23T14:59Z 22.4M followers, 4.8M engagements
"Are all of your memories real - Daniel L. Schacter Dig into the psychology of how memories are susceptible to false information and why we shouldnt treat them as truth. -- In a 1990s study participants recalled getting lost in a shopping mall as children. Some shared these memories in vivid detail but there was one problem: none of these people had actually gotten lost in a mall. They produced these false memories after psychologists told them theyd gotten lost and parents confirmed it. So whats going on Daniel L. Schacter explores the fallibility of our memory. Lesson by Daniel L. Schacter"
YouTube Link 2020-09-08T15:00Z 22.4M followers, 2.2M engagements
"What is a coronavirus - Elizabeth Cox Dig into the science of coronaviruses and find out how they cause diseases such as SARS MERS and COVID-19. -- For almost a decade scientists chased the source of a deadly new virus through Chinas tallest mountains and most isolated caverns. They finally found it in the bats of Shitou Cave. The virus in question was a coronavirus that caused an epidemic of severe acute respiratory syndrome or SARS in [----]. So what exactly is a coronavirus and how does it spread Elizabeth Cox explains. Lesson by Elizabeth Cox directed by Anton Bogaty. Animator's website:"
YouTube Link 2020-05-14T15:02Z 22.4M followers, 2M engagements
"Ugly History: The Armenian Genocide - mit Kurt Dig into the history of the Armenian Genocide during which the Ottoman Empire killed over [--] million Armenians during WWI. -- When an Armenian resistance movement began to form in the 19th century Sultan Abdul Hamid II took decisive action. He led the Hamidian Massacres a relentless campaign of violence that killed over [------] Armenians. These massacres were the culmination of centuries of oppression yet they were only the beginning of an even greater tragedy. mit Kurt uncovers the history of the Armenian Genocide. Lesson by mit Kurt directed by"
YouTube Link 2024-11-12T16:01Z 22.4M followers, 727.3K engagements
"Why was India split into two countries - Haimanti Roy Dig into the [----] Partition of India when Britain split the region into two states India and Pakistan and the mass migrations and violence that followed. -- In [----] the British viceroy announced that after [---] years of British rule India would gain independence and be partitioned into Hindu India and Muslim Pakistan. What followed was one of the largest and bloodiest forced migrations in history: an estimated [--] million people lost their lives. What caused this violent aftermath Haimanti Roy details the lasting legacies of the Partition of"
YouTube Link 2021-06-21T15:00Z 22.4M followers, 4.8M engagements
"What is Zeno's Dichotomy Paradox - Colm Kelleher View full lesson: http://ed.ted.com/lessons/what-is-zeno-s-dichotomy-paradox-colm-kelleher Can you ever travel from one place to another Ancient Greek philosopher Zeno of Elea gave a convincing argument that all motion is impossible - but where's the flaw in his logic Colm Kelleher illustrates how to resolve Zeno's Dichotomy Paradox. Lesson by Colm Kelleher animation by Buzzco Associates inc. Zeno of Alea philosophy mathematics Zeno's Dichotomy Paradox paradox dichotomy Zeno Colm Kelleher Buzzco Associates TED-Ed TED Ed TEDEducation Zeno of"
YouTube Link 2013-04-15T15:05Z 22.4M followers, 3.9M engagements
"Can you solve the dark matter fuel riddle - Dan Finkel An ancient abandoned alien space station has been discovered. Can you beat everyone in the galaxy and reach it first -- Its an incredible discovery: an abandoned alien space station filled with precursor technology. Now every species in the galaxy is in a mad dash to get there first but youve got a problem. Your ship cant hold enough fuel to get you there unless you vent caches of it into space at precise points and then come back for the fuel later. Can you reach the alien space station Dan Finkel shows how. Lesson by Daniel Finkel"
YouTube Link 2019-07-16T15:01Z 22.4M followers, 1.5M engagements
"Not all scientific studies are created equal - David H. Schwartz View full lesson: Not all scientific studies are created equal - David H. Schwartz Every day we are bombarded by attention grabbing headlines that promise miracle cures to all of our ailments -- often backed up by a "scientific study." But what are these studies and how do we know if they are reliable David H. Schwartz dissects two types of studies that scientists use illuminating why you should always approach the claims with a critical eye. Lesson by David H. Schwartz animation by Augenblick Studios. TED TED-Ed TED Ed"
YouTube Link 2014-04-28T15:19Z 22.4M followers, 633.8K engagements
"Why are we so attached to our things - Christian Jarrett View full lesson: http://ed.ted.com/lessons/why-are-we-so-attached-to-our-things-christian-jarrett After witnessing the violent rage shown by babies whenever deprived of an item they considered their own Jean Piaget a founding father of child psychology observed something profound about human nature: Our sense of ownership emerges incredibly early. But why do we become so attached to things Christian Jarrett details the psychology of ownership. Lesson by Christian Jarrett animation by Avi Ofer. TED TED Education TED Ed TED-Ed Christian"
YouTube Link 2016-12-27T15:59Z 22.4M followers, 2.8M engagements
"Why doesnt the Leaning Tower of Pisa fall over - Alex Gendler Dig into the [---] year history and architecture of the Leaning Tower of Pisa and find out what gives the tower its infamous tilt. -- In [----] the Italian government enlisted top engineers to stabilize Pisas famous Leaning Tower. Thered been many attempts during its [---] year history but computer models revealed the urgency of their situation. The tower would topple if it reached an angle of [----] degrees and it was currently leaning at [---]. What gives the tower its infamous tilt Alex Gendler explores the monument's history. Lesson by"
YouTube Link 2019-12-03T16:00Z 22.4M followers, 5.4M engagements
"What causes economic bubbles - Prateek Singh View full lesson: http://ed.ted.com/lessons/what-causes-economic-bubbles-prateek-singh During the 1600s the exotic tulip became a nationwide sensation; some single bulbs even sold for ten times the yearly salary of a skilled craftsman. Suddenly though the demand completely plummeted leaving the tulip market in a depression. What happened Prateek Singh explains the peak of a business cycle commonly referred to as a mania. Lesson by Prateek Singh animation by Simon Ampel. TED TED-Ed TEDx TED Education Tulip Holland Netherlands Stock Investment"
YouTube Link 2015-05-04T15:14Z 22.4M followers, 1.3M engagements
"How one of the worlds richest companies rose to power - Shantel George Dig into the bitter history of kola nuts a sacred ingredient in West African culture and part of Coca-Cola's original recipe. -- The kola nut is the seed of the kola tree a small evergreen native to the forests of West Africa where its long been integral to the cultural fabric of many communities. So how did this sacred ingredient end up all around the world And how did it make its way into the original recipe of a drink that billions of people consume every day Shantel George explores the bitter history of kola nuts."
YouTube Link 2025-11-25T16:00Z 22.4M followers, 403.1K engagements
"Meet the tardigrade the toughest animal on Earth - Thomas Boothby View full lesson: http://ed.ted.com/lessons/meet-the-tardigrade-the-toughest-animal-on-earth-thomas-boothby Without water a human can only survive for about [---] hours. But theres a creature so resilient that it can go without it for decades. This 1-millimeter animal can survive both the hottest and coldest environments on earth and can even withstand high levels of radiation. Thomas Boothby introduces us to the tardigrade one of the toughest creatures on Earth. Lesson by Thomas Boothby animation by Boniato Studio. TED TED-Ed"
YouTube Link 2017-03-21T15:02Z 22.4M followers, 5M engagements
"Newton's [--] Laws with a bicycle - Joshua Manley Watch full lesson here: http://ed.ted.com/lessons/joshua-manley-newton-s-3-laws-with-a-bicycle Why would it be hard to pedal a [-----] pound bicycle This simple explanation shows how Newton's [--] laws of motion might help you ride your bike. Newton's Laws Joshua Manley TED TED Ed TED-Ed TEDEdcuation TED Education bicycle bike inertia laws of motion Newton's Laws Joshua Manley TED TED Ed TED-Ed TEDEdcuation TED Education bicycle bike inertia laws of motion"
YouTube Link 2012-09-19T15:02Z 22.4M followers, 2.7M engagements
"Will we ever be able to teleport - Sajan Saini View full lesson: https://ed.ted.com/lessons/will-we-ever-be-able-to-teleport-sajan-saini Is teleportation possible Could a baseball transform into something like a radio wave travel through buildings bounce around corners and change back into a baseball Oddly enough thanks to quantum mechanics the answer might actually be yes. sort of Sajan Saini explains. Lesson by Sajan Saini directed by Karrot Animation. TEd TED-Ed TED Education TED Ed Sajan Saini Karrot Animation quantum quantum teleportation teleportation quantum entanglement qubit electron"
YouTube Link 2017-07-31T15:02Z 22.4M followers, 3.3M engagements
"A day in the life of an Aztec midwife - Kay Read Join the Aztec midwife Xoquauhtli as she tends to her patients and honors the warrior goddess Teteoinnan at a festival ushering in the season of warfare. -- The midwife Xoquauhtli has a difficult choice to make. She owes a debt to her patron Teteoinnan the female warrior goddess at the center of the Aztec seasonal festival who must be kept happy or she will bring bad luck. Xoquauhtli should participate in the festival today but one of her patients could go into labor any minute. Kay Read outlines a day in the life of an Aztec midwife. Lesson by"
YouTube Link 2020-05-12T15:00Z 22.4M followers, 1.5M engagements
"The history of the world according to cats - Eva-Maria Geigl Sign up for our newsletter and never miss an animation: http://bit.ly/TEDEdNewsletter View full lesson: https://ed.ted.com/lessons/the-history-of-the-world-according-to-cats-eva-maria-geigl In ancient times wildcats were fierce carnivorous hunters. And unlike dogs who have undergone centuries of selective breeding modern cats are genetically very similar to ancient cats. How did these solitary fierce predators become our sofa sidekicks Eva-Maria Geigl traces the domestication of the modern house cat. Lesson by Eva-Maria Geigl"
YouTube Link 2019-01-03T15:59Z 22.4M followers, 10.2M engagements
"What is schizophrenia - Anees Bahji Discover what we know and dont know about the symptoms causes and treatments of schizophrenia. -- Schizophrenia was first identified more than a century ago but we still dont know its exact causes. It remains one of the most misunderstood and stigmatized illnesses today. So what do we actually know about its symptoms causes and treatments Anees Bahji investigates. Lesson by Anees Bahji directed by Artrake Studio. Animator's website: https://www.artrake.com/ Sign up for our newsletter: http://bit.ly/TEDEdNewsletter Support us on Patreon:"
YouTube Link 2020-03-26T15:00Z 22.4M followers, 11.7M engagements
"How to write comedy - Jodie Houlston-Lau Download a free audiobook version of Born A Crime and support TED-Ed's nonprofit mission: https://www.audible.com/ted-ed -- It may seem counterintuitive but comedy is often key to a serious story. As a writer you need your audience to experience a range of emotions no matter what your genre. Comic relief is a tried-and-true way of creating the varied emotional texture a compelling story needs. So how can you create this effect in your own stories Jodie Houlston-Lau shares some tips for lightening the mood. Lesson by Jodie Houlston-Lau directed by Joe"
YouTube Link 2021-11-16T16:01Z 22.4M followers, 454.1K engagements
"The Prison Break Think Like A Coder Ep [--] The adventure begins Episode 1: Ethic awakens in a mysterious cell. Can she and robot Hedge solve the programming puzzles blocking their escape -- This is episode [--] of our animated series Think Like A Coder. This 10-episode narrative follows a girl Ethic and her robot companion Hedge as they attempt to save the world. The two embark on a quest to collect three artifacts and must solve their way through a series of programming puzzles. Lesson by Alex Rosenthal directed by Kozmonot Animation Studio. Supported by Endless: https://endlessnetwork.com A"
YouTube Link 2019-09-30T14:59Z 22.4M followers, 1.9M engagements
"It's a church. It's a mosque. It's Hagia Sophia. - Kelly Wall View full lesson: http://ed.ted.com/lessons/it-s-a-church-it-s-a-mosque-it-s-hagia-sophia-kelly-wall If walls could talk Turkey's Hagia Sophia would have an abundance of stories to tell. Once a church then a mosque and later a museum this world marvel has stood the test of time and war surviving centuries of conquest by some of history's greatest empires. Kelly Wall takes us through the history of each layer of this great jewel of human desire. Lesson by Kelly Wall animation by Andrew Foerster. Kelly Wall Andrew Foerster TED TED-Ed"
YouTube Link 2014-07-14T15:20Z 22.4M followers, 2.4M engagements
"Using radioactive drugs to see inside your body - Pedro Brugarolas Investigate the science behind how doctors use radioactive drugs and PET scans to detect and diagnose diseases like Alzheimers and cancer. -- Is there a way to detect diseases like cancer and Alzheimers before they advance too far Doctors are using injected radioactive drugs that circulate through the body and act as a beacon for PET scanners. These diagnostic tools can detect the spread of diseases before they can be spotted with other types of imaging. So how exactly does this work and is it safe Pedro Brugarolas"
YouTube Link 2019-03-19T15:01Z 22.4M followers, 389.6K engagements
"What causes headaches - Dan Kwartler Download a free audiobook and support TED-Ed's nonprofit mission: https://adbl.co/2Hejwql Check out Oliver Sacks's "The Man Who Mistook His Wife for a Hat": http://bit.ly/2Hk8ShM View full lesson: https://ed.ted.com/lessons/what-causes-headaches-dan-kwartler In ancient Greece the best-known remedy for a long-standing headache was to drill a small hole in the skull to drain supposedly infected blood. Fortunately doctors today dont resort to power tools to cure headaches but we still have a lot to learn about this ancient ailment. Dan Kwartler shares what we"
YouTube Link 2018-04-12T15:01Z 22.4M followers, 7.6M engagements
"Check your intuition: The birthday problem - David Knuffke View full lesson: http://ed.ted.com/lessons/check-your-intuition-the-birthday-problem-david-knuffke Imagine a group of people. How big do you think the group would have to be before theres more than a 50% chance that two people in the group have the same birthday The answer is probably lower than you think. David Knuffke explains how the birthday problem exposes our often-poor intuition when it comes to probability. Lesson by David Knuffke animation by TED-Ed. TED TED-Ed TED Education TED Ed birthday birthday problem twins leap year"
YouTube Link 2017-05-04T17:09Z 22.4M followers, 3M engagements
"Why plague doctors wore beaked masks Explore the history of the European plague doctor and find out where their iconic outfit of a beaked mask and robe came from. -- The year is [----]. Your body is wracked by violent chills. Your head pounds and you're too weak to sit up. In your feverish state you see a strange-looking man wearing a beak-like mask his body covered from head to toe. Without seeing his face you know: you have the plague. So where did these iconic outfits come from Stephanie Honchell Smith explores the history of plague doctors. Directed by Anton Bogaty. This video made possible"
YouTube Link 2022-11-22T16:00Z 22.4M followers, 2.2M engagements
"How does the Rorschach inkblot test work - Damion Searls What are the origins of the Rorschach test and how does it work Explore the inkblot tool psychologists use to test a subjects perceptions and mental health. -- For nearly a century ten inkblots have been used as an almost mystical personality test. Long kept confidential for psychologists and their patients the mysterious images were said to draw out the workings of a persons mind. But what can inkblots really tell us and how does this test work Damion Searls details how the Rorschach Test can help us understand the patterns of our"
YouTube Link 2019-03-05T16:01Z 22.4M followers, 7.5M engagements
"Why is it so hard to cure the common cold Dig into the two main ways we fight the viruses that cause the common cold and find out if its possible to create a cure. -- On average adults catch more than [---] colds throughout their lives. Even with similar symptoms the cause could be different each time. Common colds are caused by at least [--] different families of virus each of which can have its own subtypes. How can so many different viruses cause the same illness And is a cure even possible Explore the two main strategies we employ to fight viruses. Directed by Anton Bogaty. This video made"
YouTube Link 2022-10-20T15:01Z 22.4M followers, 1.4M engagements
"What is consciousness - Michael S. A. Graziano Explore the theories of human consciousness and the science of how your brain works to create a conscious experience. -- Patient P.S. suffered a stroke that damaged the right side of her brain leaving her unaware of everything on her left side. If someone threw a ball at her left side she might duck. But she wouldnt have awareness of the ball or know why she ducked. Where does consciousness come from Michael Graziano explores the question that has vexed scientists and philosophers for centuries. Lesson by Michael S. A. Graziano directed by"
YouTube Link 2019-02-11T16:01Z 22.4M followers, 1.7M engagements
"The vocabulary of electricity - James Sheils We all know the words around electricity "charge" "positive" "battery" and more. But where do they come from and what do they really mean Let the history of these words illuminate the physics of electric phenomena. Lesson by James Sheils animation by TED-Ed. View the full lesson: http://ed.ted.com/lessons/electric-vocabulary James Sheils electricity physics electric TED TED-Ed battery charge history of electricity TED Education Biljana Labovic Celeste Lai James Sheils electricity physics electric TED TED-Ed battery charge history of electricity TED"
YouTube Link 2012-07-16T15:15Z 22.4M followers, 689.9K engagements
"How to sequence the human genome - Mark J. Kiel View full lesson: http://ed.ted.com/lessons/how-to-sequence-the-human-genome-mark-j-kiel Your genome every human's genome consists of a unique DNA sequence of A's T's C's and G's that tell your cells how to operate. Thanks to technological advances scientists are now able to know the sequence of letters that makes up an individual genome relatively quickly and inexpensively. Mark J. Kiel takes an in-depth look at the science behind the sequence. Lesson by Mark J. Kiel animation by Marc Christoforidis. Mark Kiel Marc Christoforidis Human Genome"
YouTube Link 2013-12-09T16:08Z 22.4M followers, 1.6M engagements
"What is McCarthyism And how did it happen - Ellen Schrecker View full lesson: http://ed.ted.com/lessons/what-is-mccarthyism-and-how-did-it-happen-ellen-schrecker In the 1950s as part of a campaign to expose suspected Communists thousands of individuals were aggressively investigated and questioned before government panels. Named after its most notorious practitioner the phenomenon known as McCarthyism destroyed lives and careers. But how did this episode of political repression take off Ellen Schrecker traces the history of McCarthyism. Lesson by Ellen Schrecker animation by Patrick Smith."
YouTube Link 2017-03-14T15:02Z 22.4M followers, 4.4M engagements
"Can you solve the prisoner hat riddle - Alex Gendler View full lesson: http://ed.ted.com/lessons/can-you-solve-the-prisoner-hat-riddle-alex-gendler Want more Try the buried treasure riddle: https://www.youtube.com/watchv=tCeklW2e6_E You and nine other individuals have been captured by super-intelligent alien overlords. The aliens think humans look quite tasty but their civilization forbids eating highly logical and cooperative beings. Unfortunately theyre not sure whether you qualify so they decide to give you all a test. Can you solve this hat riddle Alex Gendler shows how. Lesson by Alex"
YouTube Link 2015-10-05T15:13Z 22.4M followers, 35.1M engagements
"What really happened during the Salem Witch Trials - Brian A. Pavlac Dig into how the infamous Salem Witch Trials began and why they remain a cautionary tale of the dangers of groupthink and scapegoating. -- Youve been accused of a crime you did not commit. Its impossible to prove your innocence. If you insist that youre innocent anyway youll likely be found guilty and executed. But if you confess apologize and implicate others youll go free. This was the choice facing those accused of witchcraft in Salem Massachusetts in the 17th century. How did this happen Brian A. Pavlac investigates."
YouTube Link 2020-05-04T15:01Z 22.4M followers, 8.1M engagements
"Who decides how long a second is - John Kitching Discover how scientists developed atomic clocks which use the vibrations of atoms to measure and maintain a globally consistent time. -- In [----] researchers gathered to answer a long-running scientific question: just how long is a second It might seem obvious at first. A second is the tick of a clock the swing of a pendulum the time it takes to count to one. But how precise are those measurements And what is that length based on John Kitching digs into how we scientifically define this fundamental unit of time. Lesson by John Kitching directed"
YouTube Link 2021-01-19T16:00Z 22.4M followers, 2.7M engagements
"How your digestive system works - Emma Bryce Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/how-your-digestive-system-works-emma-bryce Across the planet humans eat on average between [--] and [---] kilograms of food a day and every last scrap makes its way through the digestive system. Comprised of ten organs covering nine meters this is one of the most complicated systems in the body. Emma Bryce explains how the different parts of the digestive system work to transform your food into the nutrients and energy that keep you alive. Lesson by"
YouTube Link 2017-12-14T16:01Z 22.4M followers, 13.3M engagements
"The science of skin - Emma Bryce Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/the-science-of-skin-emma-bryce Between you and the rest of the world lies an interface that makes up 16% of your physical weight. This is your skin the largest organ in your body: laid out flat it would cover close to [---] square metres of ground. But besides keeping your organs in what is its purpose Emma Bryce takes us into the integumentary system to find out. Lesson by Emma Bryce animation by Augenblick Studios. Thank you so much to our patrons for your"
YouTube Link 2018-03-12T15:00Z 22.4M followers, 2.2M engagements
"The benefits of good posture - Murat Dalkilin View full lesson: http://ed.ted.com/lessons/the-benefits-of-good-posture-murat-dalkinic Has anyone ever told you Stand up straight or scolded you for slouching at a family dinner Comments like that might be annoyingbut theyre not wrong. Your posture is the foundation for every movement your body makes and can determine how well your body adapts to the stresses on it. Murat Dalkilin gives the pros of good posture. Lesson by Murat Dalkilin animation by Nadav Arbel. Posture Spine Center of gravity Technology Phone Computer Slouch Nadav Arbel Murat"
YouTube Link 2015-07-30T15:00Z 22.4M followers, 17.4M engagements
"Why is it so hard to cure ALS - Fernando G. Vieira Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/why-is-it-so-hard-to-cure-als-fernando-vieira Amyotrophic Lateral Sclerosis (ALS) also called motor neuron disease and Lou Gehrigs Disease affects about two out of every [------] people worldwide. When a person has ALS their motor neurons - the cells responsible for all voluntary muscle control in the body - lose function and die. Fernando G. Vieira shares what we know (and don't know) about ALS. Lesson by Fernando G. Vieira animation by"
YouTube Link 2018-05-31T15:02Z 22.4M followers, 525.4K engagements
"The unexpected math behind Van Gogh's "Starry Night" - Natalya St. Clair Check out our Patreon page: https://www.patreon.com/teded View full lesson: http://ed.ted.com/lessons/the-unexpected-math-behind-van-gogh-s-starry-night-natalya-st-clair Physicist Werner Heisenberg said When I meet God I am going to ask him two questions: why relativity And why turbulence I really believe he will have an answer for the first. As difficult as turbulence is to understand mathematically we can use art to depict the way it looks. Natalya St. Clair illustrates how Van Gogh captured this deep mystery of"
YouTube Link 2014-10-30T15:13Z 22.4M followers, 9.6M engagements
"How do self-driving cars see - Sajan Saini Take a look at the LIDAR and integrated photonics technologies that help self-driving cars navigate obstacles no matter the environment weather or light. -- Its late pitch dark and a self-driving car winds down a narrow country road. Suddenly three hazards appear at the same time. With no human at the wheel the car uses smart eyes sensors thatll resolve these details all in a split-second. How is this possible Sajan Saini explains how LIDAR and integrated photonics technology make self-driving cars a reality. Lesson by Sajan Saini directed by Artrake"
YouTube Link 2019-05-13T15:01Z 22.4M followers, 602.1K engagements
"Which voting system is the best - Alex Gendler Dive into four different voting systems: plurality instant runoff tactical and the Condorcet method and find out which is fairest. -- Imagine we want to build a new space port at one of four recently settled Martian bases and are holding a vote to choose its location. Of the [---] colonists on Mars [--] live on West Base [--] on North Base [--] on South Base and [--] on East Base. Assuming that everyone wants the port to be closest to their home base what is the fairest way to conduct the vote Alex Gendler digs into voting systems. Lesson by Alex Gendler"
YouTube Link 2020-06-11T15:00Z 22.4M followers, 1.4M engagements
"How do crystals work - Graham Baird What makes crystals grow into their signature shapes Dig into the atomic patterns and unique properties of crystals. -- Many crystals have signature shapes like the cascade of pointed quartz or a pile of galena cubes. Every crystals atoms have a defining feature: their organized repeating pattern. The pattern isn't restricted to minerals- sand ice metals and DNA also have crystalline structures. So what causes them to grow into these shapes again and again Graham Baird dives into the unique properties of crystals. Lesson by Graham Baird directed by Franz"
YouTube Link 2019-06-18T15:00Z 22.4M followers, 3.7M engagements
"Sugar: Hiding in plain sight - Robert Lustig View full lesson: http://ed.ted.com/lessons/sugar-hiding-in-plain-sight-robert-lustig While sugar is easy to spot in candy soft drinks and ice cream it also hides out in foods you might not expect -- including peanut butter pasta sauce and even bologna Robert Lustig decodes confusing labels and sugar's many aliases to help determine just how much of that sweet carbohydrate makes its way into our diets. Lesson by Robert Lustig animation by The Tremendousness Collective. Robert Lustig The Tremendousness Collective Carbohydrate sugar food TED TED-Ed"
YouTube Link 2014-03-31T15:16Z 22.4M followers, 1.4M engagements
"Why should you read "Hamlet" - Iseult Gillespie Explore William Shakespeares classic tragedy Hamlet a play about conspiracy deception and the tragic consequences of indecision. -- Whos there Whispered in the dark this question begins a tale of conspiracy deception and moral ambiguity. And in a play where everyone has something to hide its answer is far from simple. Written by William Shakespeare Hamlet depicts its titular character haunted by the past but immobilized by the future. Iseult Gillespie digs into the humanity and tragedy of Hamlet. Lesson by Iseult Gillespie directed by Lucy"
YouTube Link 2019-06-25T15:00Z 22.4M followers, 2.1M engagements
"Which animal has the best eyesight - Thomas W. Cronin Explore the incredible diversity of eyes and vision in the animal kingdom and find out which creature has the best eyesight. -- The animal kingdom boasts an incredible diversity of eyes. Some rotate independently while others have squiggly-shaped pupils. Some have protective lids others squirt blood. But which creature has the best sight Which sees best in the darkness Which sees the most detail Which animal sees the most color And finally which detects motion the fastest Thomas W. Cronin investigates. Lesson by Thomas W. Cronin directed"
YouTube Link 2022-01-25T16:00Z 22.4M followers, 989.3K engagements
"How Thor got his hammer - Scott A. Mellor Sign up for our newsletter and never miss an animation: http://bit.ly/TEDEdNewsletter View full lesson: https://ed.ted.com/lessons/how-thor-got-his-hammer-scott-a-mellor Loki the mischief-maker writhes in Thors iron grip. The previous night hed snuck up on Thors wife and shorn off her beautiful hair. To fix what hed done Loki rushes to the dwarves and tricks them into making gifts for the gods. Wanting to best their smith rivals the dwarves make a set of golden treasures including a hammer called Mjolnir. Scott A. Mellor traces the legend of Thors"
YouTube Link 2019-01-07T16:00Z 22.4M followers, 14.1M engagements
"Can AI predict someone's breakup - Thomas Hofweber Explore one of the main issues of AI-based predictive models and how it affects user decision-making and accountability. -- A couple has been considering getting engaged but theyre worried about divorce statistics. An AI-based model was just released that can predict your likelihood of divorce with 95% accuracy. The only catch is the model doesnt offer any reasons for its results. So should they decide whether or not to get married based on this AIs prediction Thomas Hofweber explores AIs transparency problem. Lesson by Thomas Hofweber"
YouTube Link 2024-05-21T15:00Z 22.4M followers, 194.5K engagements
"What is bipolar disorder - Helen M. Farrell Explore the medical condition known as bipolar disorder and learn about its symptoms causes and treatments. -- The word bipolar means two extremes. For the many millions experiencing bipolar disorder around the world life is split between two different realities: elation and depression. So what causes this disorder And can it be treated Helen M. Farrell describes the root causes and treatments for bipolar disorder. Lesson by Helen M Farrell animation by Uncle Ginger. Sign up for our newsletter: http://bit.ly/TEDEdNewsletter Support us on Patreon:"
YouTube Link 2017-02-09T15:59Z 22.4M followers, 14.5M engagements
"If you had the chance to be immortal would you take it - Sarah Stroud and Michael Vazquez Explore different philosophers ideas on immortality and dig into their theories about the positives and negatives of eternal life. -- While cleaning out your uncles attic you find a chest with a sparkling potion. The attached tag declares drinking this liquid will make you immortal. Your body will be frozen at its current age and these effects would be final and irreversible. The instructions are clear the only question is do you drink the potion Sarah Stroud and Michael Vazquez explore this"
YouTube Link 2025-09-11T15:01Z 22.4M followers, 1.6M engagements
"The myth of Gawain and the Green Knight - Dan Kwartler Dig into the myth of the Green Knight who comes to King Arthurs court to challenge the honor and bravery of Camelots knights. -- It was Christmas in Camelot and King Arthur was throwing a party. In the midst of the revelry a towering knight proposed a game. He challenged the warriors present to attack him with his own axe. If they could strike him down they would win his powerful weapon. However he would be allowed to return the blow in one year. Dan Kwartler details the myth of Sir Gawain and the Green Knight. Lesson by Dan Kwartler"
YouTube Link 2022-02-03T15:59Z 22.4M followers, 1.7M engagements
"What causes an economic recession - Richard Coffin How can factors like inflation supply and demand and interest rates trigger recessions Learn the economic basics of modern markets. -- For millennia the people of Britain had been using bronze to make tools and jewelry and as a currency for trade. But around [---] BCE that began to change: the value of bronze declined causing social upheaval and an economic crisis what we would call a recession today. So what causes recessions Richard Coffin digs into the economic fluctuations that affect our modern markets. Lesson by Richard Coffin directed by"
YouTube Link 2019-10-15T15:00Z 22.4M followers, 2.3M engagements
"The Romans flooded the Colosseum for sea battles - Janelle Peters Dig in to the history of the Roman Empires staged gladiatorial naval battles and how they flooded the Colosseum to reenact famous battles. -- Starting in [--] CE residents of Rome and visitors from across the Roman Empire would fill the stands of the Colosseum to see gladiators duel animals fight and chariots race around the arena. And for the grand finale water poured into the arena basin submerging the stage for the greatest spectacle of all: staged naval battles. Janelle Peters details the history of these mock maritime"
YouTube Link 2019-06-24T15:01Z 22.4M followers, 1.1M engagements
"Why are some people left-handed - Daniel M. Abrams View full lesson: http://ed.ted.com/lessons/why-are-some-people-left-handed-daniel-m-abrams Today about one-tenth of the worlds population are southpaws. Why are such a small proportion of people left-handed -- and why does the trait exist in the first place Daniel M. Abrams investigates how the uneven ratio of lefties and righties gives insight into a balance between competitive and cooperative pressures on human evolution. Lesson by Daniel M. Abrams animation by TED-Ed. TED TED-Ed TEDx Left-hand Left-handed Proper hand Right-hand"
YouTube Link 2015-02-03T16:20Z 22.4M followers, 11.1M engagements
"You could have a secret twin (but not the way you think) - Kayla Mandel Sheets Download a free audiobook version of The Vanishing Half and support TED-Ed's nonprofit mission: https://www.audible.com/ted-ed -- While searching for a kidney donor Karen Keegan stumbled upon a mystery. After undergoing genetic testing it turned out that some of her cells had a completely different set of genes from the others. And this second set of genes belonged to her twin sister who had never been born. How did this happen Kayla Mandel Sheets explores the condition known as chimerism. Lesson by Kayla Mandel"
YouTube Link 2021-09-16T15:00Z 22.4M followers, 3.2M engagements
"The world needs all kinds of minds - Temple Grandin View full lesson: http://ed.ted.com/admin/lessons Temple Grandin diagnosed with autism as a child talks about how her mind works -- sharing her ability to "think in pictures" which helps her solve problems that neurotypical brains might miss. She makes the case that the world needs people on the autism spectrum: visual thinkers pattern thinkers verbal thinkers and all kinds of smart geeky kids. Talk by Temple Grandin. Temple Grandin TED TED Talk TED-ED TEDEducation Ed autism autistic autism spectrum spectrum Temple Grandin TED TED Talk"
YouTube Link 2013-02-10T16:03Z 22.4M followers, 783.9K engagements
"The myth of Prometheus - Iseult Gillespie Dig into the myth of Prometheus a Titan who defied Zeus to give fire to humanity and was punished for eternity. -- Before the creation of humanity the Greek gods won a great battle against a race of giants called the Titans. Most Titans were destroyed or driven to the eternal hell of Tartarus. But the Titan Prometheus whose name means foresight persuaded his brother Epimetheus to fight with him on the side of the Gods. Iseult Gillespie shares the myth of Prometheus. Lesson by Iseult Gillespie directed by La Krawczyk. Support Our Non-Profit Mission"
YouTube Link 2017-11-14T16:05Z 22.4M followers, 9.7M engagements
"The Cambodian myth of lightning thunder and rain - Prumsodun Ok Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/the-cambodian-myth-of-lightning-thunder-and-rain-prumsodum-ok "Moni Mekhala Ream Eyso" is the most sacred dance drama in Cambodia. It is performed every year in the buong suong ceremony and explains the origins of lightning thunder and rain according to the Khmer people. Prumsodun Ok tells this empowering tale that still enlightens our world today. Lesson by Prumsodun Ok animation by Silvia Prietov. Thank you so much to our"
YouTube Link 2018-04-10T15:01Z 22.4M followers, 4.9M engagements
"The psychology behind irrational decisions - Sara Garofalo View full lesson: http://ed.ted.com/lessons/the-psychology-behind-irrational-decisions-sara-garofalo Often people make decisions that are not rational from a purely economical point of view meaning that they dont necessarily lead to the best result. Why is that Are we just bad at dealing with numbers and odds Or is there a psychological mechanism behind it Sara Garofalo explains heuristics problem-solving approaches based on previous experience and intuition rather than analysis. Lesson by Sara Garofalo animation by TOGETHER. Sara"
YouTube Link 2016-05-12T15:00Z 22.4M followers, 2.4M engagements
"The secret language of trees - Camille Defrenne and Suzanne Simard Learn how trees are able to communicate with each other through a vast root system and symbiotic fungi called mycorrhizae. -- Most of the forest lives in the shadow of the giants that make up the highest canopy. These are the oldest trees with hundreds of children and grandchildren. They check in with their neighbors share food supplies and wisdom gained over their lives all while rooted in place. How do they do this Camille Defrenne and Suzanne Simard explore the vast root system and intricate communication of trees. Lesson"
YouTube Link 2019-07-01T15:00Z 22.4M followers, 861.9K engagements
"The wars that inspired Game of Thrones - Alex Gendler View full lesson: http://ed.ted.com/lessons/the-wars-that-inspired-game-of-thrones-alex-gendler Beginning around [----] medieval England was shaken by a power struggle between two noble families which spanned generations and involved a massive cast of characters complex motives and shifting loyalties. Sound familiar Alex Gendler illustrates how the historical conflict known as the Wars of the Roses served as the basis for much of the drama in Game of Thrones. Lesson by Alex Gendler animation by Brett Underhill. Game of thrones History"
YouTube Link 2015-05-11T15:10Z 22.4M followers, 7.4M engagements
"How turtle shells evolved. twice - Judy Cebra Thomas Check out the fascinating science behind the evolution of the turtle shell over [---] million years in the making. -- Modern turtle shells are almost as diverse as the turtles themselves. Sea turtles have flatter lighter shells for gliding through the water. Land-dwelling tortoises have domed shells that can slip free of predators jaws. Leatherback turtles have shells without the ring of bone around the edge. So how did the shell evolve Judy Cebra-Thomas explores the ancestry of the turtle. Lesson by Judy Cebra-Thomas directed by Cabong"
YouTube Link 2019-07-30T15:00Z 22.4M followers, 994.6K engagements
"How to make smart decisions more easily Explore the psychology of decision fatigue what kinds of choices lead us to this state and what we can do to fight it. -- Everything our bodies do whether physical or mental uses energy. Studies have found that many individuals seem to have a daily threshold for making decisions and an extended period of decision-making can lead to cognitive exhaustion. So what kinds of choices lead us to this state and what can we do to fight fatigue Explore the psychology of decision fatigue and ways you can avoid fatigue. Directed by Jolene Tan. This video made"
YouTube Link 2023-11-30T16:00Z 22.4M followers, 1.9M engagements
"Why is English so confusing - Arika Okrent Explore the evolution of English spelling conventions throughout history and find out why it's such an inconsistent language. -- Spelling reformers have been advocating for changes to make English spelling more intuitive and less irregular. One example of its messiness: take the g-h sound from enough the o sound from women and the t-i sound from action and you could argue that g-h-o-t-i spells fish. So how did English get like this Arika Okrent explores the complexity of English spelling conventions. Lesson by Arika Okrent directed by Emily Howells"
YouTube Link 2024-05-23T14:00Z 22.4M followers, 715.5K engagements
"How to squeeze electricity out of crystals - Ashwini Bharathula View full lesson: http://ed.ted.com/lessons/how-to-squeeze-electricity-out-of-crystals-ashwini-bharathula It might sound like science fiction but if you press on a crystal of sugar it will actually generate its own electricity. This simple crystal can act like a tiny power source because sugar happens to be piezoelectric. Ashwini Bharathula explains how piezoelectric materials turn mechanical stress like pressure sound waves and other vibrations into electricity and vice versa. Lesson by Ashwini Bharathula animation by Karrot"
YouTube Link 2017-06-20T15:00Z 22.4M followers, 722.4K engagements
"What is entropy - Jeff Phillips View full lesson: http://ed.ted.com/lessons/what-is-entropy-jeff-phillips Theres a concept thats crucial to chemistry and physics. It helps explain why physical processes go one way and not the other: why ice melts why cream spreads in coffee why air leaks out of a punctured tire. Its entropy and its notoriously difficult to wrap our heads around. Jeff Phillips gives a crash course on entropy. Lesson by Jeff Phillips animation by Provincia Studio. TED TED Education TED-Ed TED Ed Jeff Phillips Provincia Studio entropy chemistry physics disorder atomic bonds"
YouTube Link 2017-05-09T15:00Z 22.4M followers, 4.9M engagements
"Why should you read Dantes Divine Comedy - Sheila Marie Orfano Explore Dante Alighieris epic poem Divine Comedy a 3-part narrative that follows Dantes journey for salvation through Hell. -- Abandon all hope ye who enter here Inscribed above the Gate of Hell this prophecy sets into motion an epic journey for salvation. Written over [--] years Dante Alighieris three-part narrative poem Divine Comedy is both an allegorical imagining of the souls journey towards God and a scathing political commentary. Sheila Maria Orfano shares its timeless themes of love sin and redemption. Lesson by Sheila Marie"
YouTube Link 2019-10-10T15:00Z 22.4M followers, 2.1M engagements
"How do geckos defy gravity - Eleanor Nelsen View full lesson: http://ed.ted.com/lessons/how-do-geckos-defy-gravity-eleanor-nelsen Geckos arent covered in adhesives or hooks or suction cups and yet they can effortlessly scale vertical walls and hang from ceilings. Whats going on Eleanor Nelsen explains how geckos phenomenal feet allow them to defy gravity. Lesson by Eleanor Nelsen animation by Marie-Louise Hjer Jensen. TED TED-Ed TED Education Eleanor Nelsen Gecko Feet Climbing Charges Positive charge Negative charge Intermolecular forces Nuclei Van der waals forces Particles Chemistry Physics"
YouTube Link 2015-03-30T15:04Z 22.4M followers, 1.6M engagements
"How friendship affects your brain - Shannon Odell Dig into what happens to your brain during adolescence that changes how you value understand and connect to friends. -- If it seems like friendships formed in adolescence are particularly special that's because they are. Childhood adolescent and adult friendships all manifest differently in part because the brain works in different ways at those stages of life. During adolescence there are changes in the way you value understand and connect to friends. Shannon Odell explores the neuroscience of friendship. Lesson by Shannon Odell directed by"
YouTube Link 2022-09-15T15:01Z 22.4M followers, 1.6M engagements
"Should we get rid of standardized testing - Arlo Kempf Download a free audiobook and support TED-Ed's nonprofit mission: http://www.audible.com/teded Check out Todd Rose's "The End of Average: How We Succeed in a World That Values Sameness": https://shop.ed.ted.com/collections/ted-ed-book-recommendations/products/the-end-of-average View full lesson: https://ed.ted.com/lessons/should-we-get-rid-of-standardized-testing-arlo-kempf Although standardized testing is a particularly hot topic in education right now this approach to measurement has been in use for two millennia. And while the results"
YouTube Link 2017-09-19T15:04Z 22.4M followers, 1.3M engagements
"Why do airlines sell too many tickets - Nina Klietsch View full lesson on ed.ted.com: http://ed.ted.com/lessons/why-do-airlines-sell-too-many-tickets-nina-klietsch Have you ever sat in a doctors office for hours despite having an appointment Has a hotel turned down your reservation because its full Have you been bumped off a flight that you paid for These are all symptoms of overbooking a practice where businesses sell or book more than their capacity. So why do they do it Nina Klietsch explains the math behind this frustrating practice. Lesson by Nina Klietsch animation by Anton Trofimov."
YouTube Link 2016-12-20T16:03Z 22.4M followers, 2.6M engagements
"Can you solve the virus riddle - Lisa Winer View full lesson: http://ed.ted.com/lessons/can-you-solve-the-virus-riddle-lisa-winer Your research team has found a prehistoric virus preserved in the permafrost and isolated it for study. After a late night working youre just closing up the lab when a sudden earthquake hits and breaks all the sample vials. Will you be able to destroy the virus before the vents open and unleash a deadly airborne plague Lisa Winer shows how. Lesson by Lisa Winer animation by Artrake Studio. TED TED-Ed TED Education TED Ed Lisa Winer Artrake Studio riddle virus"
YouTube Link 2017-04-03T15:03Z 22.4M followers, 14.2M engagements
"How to read music - Tim Hansen Like an actor's script a sheet of music instructs a musician on what to play (the pitch) and when to play it (the rhythm). Sheet music may look complicated but once you've gotten the hang of a few simple elements like notes bars and clefs you're ready to rock. Tim Hansen hits the instrumental basics you need to read music. TED TED-Ed TEDEducation Tim Hansen Music Sheet music Composition Beats the clef rhythm pitch TED TED-Ed TEDEducation Tim Hansen Music Sheet music Composition Beats the clef rhythm pitch"
YouTube Link 2013-07-18T14:58Z 22.4M followers, 7.7M engagements
"Can you "see" images in your mind Some people can't - Adam Zeman Learn more at https://brilliant.org/TedEd -- When reading "Alice's Adventures in Wonderland" most readers visualize the queens croquet game play out in their heads. A few might see the scene in vivid detail. However a small fraction of readers have a drastically different experience: within their heads they "see" absolutely nothing. Why do some people have an inability to visualize images Adam Zeman explores the science of aphantasia. Lesson by Adam Zeman directed by Biljana Labovi. Animation by Manon David. Support Our"
YouTube Link 2025-02-18T16:01Z 22.4M followers, 2.4M engagements
"Whats the best position to sleep in - Rachel Marie E. Salas Is there a best sleep position Dig into how sleeping on your side back or stomach can impact your body and health. -- Sleep positions go by countless creative names the zombie mountain climber free faller soldier and more. Yet sleep experts typically simplify them into the basic types: side stomach or back. Individual sleep styles are highly personal but how we spend the night affects our bodies and health in several ways. So whats the best position to sleep in Rachel Marie E. Salas investigates. Lesson by Rachel Marie E. Salas"
YouTube Link 2025-12-11T16:00Z 22.4M followers, 1.5M engagements
"Whats the best way to lift people out of poverty Explore different poverty intervention and aid programs and how direct cash giving can address a community's needs. -- In [----] a nonprofit gave every adult in the Ahenyo village $500. Most families had lived in extreme poverty for generations and this sum was roughly equivalent to their annual salaries. The money came with no strings attached to how it could be spent. Would this lift villagers out of poverty or be another failed philanthropic endeavor Explore aid programs and how they address people's needs. Directed by Jolene Tan. Support Our"
YouTube Link 2025-10-23T15:01Z 22.4M followers, 1M engagements
"The science of skin color - Angela Koine Flynn View full lesson: https://ed.ted.com/lessons/the-science-of-skin-color-angela-koine-flynn When ultraviolet sunlight hits our skin it affects each of us differently. Depending on skin color itll take only minutes of exposure to turn one person beetroot-pink while another requires hours to experience the slightest change. Whats to account for that difference and how did our skin come to take on so many different hues to begin with Angela Koine Flynn describes the science of skin color. Lesson by Angela Koine Flynn animation by Toms"
YouTube Link 2016-02-16T16:32Z 22.4M followers, 3.6M engagements
"Are Elvish Klingon Dothraki and Na'vi real languages - John McWhorter View full lesson: http://ed.ted.com/lessons/are-elvish-klingon-dothraki-and-na-vi-real-languages-john-mcwhorter What do Game of Thrones' Dothraki Avatar's Na'vi Star Trek's Klingon and LOTR's Elvish have in common They are all fantasy constructed languages or conlangs. Conlangs have all the delicious complexities of real languages: a high volume of words grammar rules and room for messiness and evolution. John McWhorter explains why these invented languages captivate fans long past the rolling credits. Lesson by John"
YouTube Link 2013-09-26T15:10Z 22.4M followers, 3M engagements
"DNA: The book of you - Joe Hanson View full lesson: http://ed.ted.com/lessons/dna-the-book-of-you-joe-hanson Your body is made of cells -- but how does a single cell know to become part of your nose instead of your toes The answer is in your body's instruction book: DNA. Joe Hanson compares DNA to a detailed manual for building a person out of cells -- with [--] chapters (chromosomes) and hundreds of thousands of pages covering every part of you. Lesson by Joe Hanson animation by Nipun.Co Motion Craft. TEDEducation TED-Ed TED Ed Joe Hanson Nipun Sharma Nipun.Co Motion Craft DNA chromosome"
YouTube Link 2012-11-26T15:59Z 22.4M followers, 683.8K engagements
"Can you solve the riddle of Pandoras box - Alex Rosenthal TED-Ed has launched its first ever physical game: Pandora's Legacy Learn more and get your copy here: https://ed.ted.com/pandora -- Pandora is having a decisively bad day. She didnt set out to open the box; if anything shed resisted with every ounce of her will. But her curiosity got the better of her and a cavalcade of evils of every shape and size spilled out. Pandora knows her only chance to fix this is to capture Hope before the imps all escape her home. Can you figure out which one is Hope Alex Rosenthal shows how. Lesson by Alex"
YouTube Link 2025-04-29T15:00Z 22.4M followers, 616.6K engagements
"Cannibalism in the animal kingdom - Bill Schutt Check out Bill Schutt's "Cannibalism: A Perfectly Natural History": http://bit.ly/2HLWjrU View full lesson: https://ed.ted.com/lessons/cannibalism-in-the-animal-kingdom-bill-schutt Until recently scientists thought cannibalism was a rare response to starvation or other extreme stress. Well-known cannibals like the praying mantis and black widow were considered bizarre exceptions. But now we know they more or less represent the rule. Bill Schutt shows how cannibalism can promote the survival of a species by reducing competition culling the weak"
YouTube Link 2018-03-19T15:05Z 22.4M followers, 7M engagements
"Was Alexander the Great really that great - Stephanie Honchell Smith Alexander the Great transformed the world during his reign but was he an embattled leader or a ruthless conqueror -- Alexander the Great fundamentally transformed the world during his 13-year reign. He conquered Persia when it was one of the worlds largest empires and he was considered a living demi-god by Egyptians and Greeks. But was he a brilliant embattled leader or a ruthless power-hungry conqueror Stephanie Honchell Smith puts this controversial figure on trial in History vs. Alexander the Great. Lesson by Stephanie"
YouTube Link 2025-12-18T16:00Z 22.4M followers, 284.8K engagements
"The psychology of post-traumatic stress disorder - Joelle Rabow Maletis Get informed on the science behind post-traumatic stress disorder PTSD its symptoms and how the brain reacts to trauma. -- Many of us will experience some kind of trauma during our lifetime. Sometimes we escape with no long-term effects. But for millions of people those experiences linger causing symptoms like flashbacks nightmares and negative thoughts that interfere with everyday life. Joelle Rabow Maletis details the science behind post-traumatic stress disorder or PTSD. Lesson by Joelle Rabow Maletis directed by Toms"
YouTube Link 2018-06-25T15:00Z 22.4M followers, 3.5M engagements
"5 tips to improve your critical thinking - Samantha Agoos View full lesson: http://ed.ted.com/lessons/5-tips-to-improve-your-critical-thinking-samantha-agoos Every day a sea of decisions stretches before us and its impossible to make a perfect choice every time. But there are many ways to improve our chances and one particularly effective technique is critical thinking. Samantha Agoos describes a 5-step process that may help you with any number of problems. Lesson by Samantha Agoos animation by Nick Hilditch. Samantha Agoos Nick Hilditch critical thinking decision making how to make decision"
YouTube Link 2016-03-15T14:58Z 22.4M followers, 11.8M engagements
"What is chemical equilibrium - George Zaidan and Charles Morton View full lesson: https://ed.ted.com/lessons/if-molecules-were-people-george-zaidan-and-charles-morton When molecules collide chemical reactions can occur -- causing major structural changes akin to getting a new arm on your face George Zaidan and Charles Morton playfully imagine chemical systems as busy city streets and the colliding molecules within them as your average limb-swapping joes. Lesson by George Zaidan and Charles Morton animation by Neighbor. Charles Morton Alicia Reece Mike Schell chemistry chemical reactions"
YouTube Link 2013-07-23T15:09Z 22.4M followers, 1M engagements
"What happens to your body at the top of Mount Everest - Andrew Lovering Explore what happens in your body when you dont acclimate to higher altitudes and the dangers of altitude sickness. -- If you teleported from sea level to the top of Mount Everest things would go bad fast. At an altitude of [----] meters you would likely suffocate in minutes. However for people that make this journey over the course of a month its possible to survive at the peak for hours. So what happens in our bodies that allows us to endure this incredible altitude Andrew Lovering investigates. Lesson by Andrew Lovering"
YouTube Link 2022-06-28T15:01Z 22.4M followers, 2M engagements
"The mysterious origins of life on Earth - Luka Seamus Wright Where on Earth did life begin Explore the hydrothermal vents in Earths crust as simple compounds gave way to complex life. -- Billions of years ago simple organic compounds assembled into more complex coalitions that could grow and reproduce. At the time Earth had widespread volcanic activity and a hostile atmosphere that made it almost devoid of a suitable environment for living things. So where did life begin Luka Wright searches for the cradle of life that gave rise to the billions of species that inhabit our planet. Lesson by"
YouTube Link 2019-08-26T15:00Z 22.4M followers, 1.4M engagements
"What would happen if you didnt sleep - Claudia Aguirre View full lesson: http://ed.ted.com/lessons/what-would-happen-if-you-didn-t-sleep-claudia-aguirre In the United States its estimated that [--] percent of adults and [--] percent of adolescents are regularly sleep-deprived. This isnt just a minor inconvenience: staying awake can cause serious bodily harm. Claudia Aguirre shows what happens to your body and brain when you skip sleep. Lesson by Claudia Aguirre animation by TED-Ed. TED TED-Ed TEDx TED Education Claudia Aguirre Sleep Sleep deprivation Neuroscience REM sleep Health Rest Tired Yawn"
YouTube Link 2015-11-12T16:00Z 22.4M followers, 15.1M engagements
"6 myths about the Middle Ages that everyone believes - Stephanie Honchell Smith Explore the [--] most common misconceptions about the Middle Ages and find out what living in medieval times was actually like. -- Medieval Europe. Where unbathed sword-wielding knights ate rotten meat thought the Earth was flat defended chastity-belt wearing maidens and tortured their foes with grisly gadgets. Except this is more fiction than fact. So where do all the myths about the Middle Ages come from And what were they actually like Stephanie Honchell Smith debunks common misconceptions about the time period."
YouTube Link 2023-03-07T16:01Z 22.4M followers, 2.8M engagements
"The murderous medieval king who inspired "Macbeth" - Benjamin Hudson Dig into the history that inspired Shakespeares tragedy Macbeth and find out just how much of the play is based on real events. -- Of all Shakespeares plays perhaps none is stranger than Macbeth a parable on power rife with supernatural elements. But according to texts from the 11th century this tragedy has its roots in reality. Whats more other accounts mention witches prophecies and arboreal armies. Which raises the question: just how much of Shakespeares strange story is true Benjamin Hudson investigates. Lesson by"
YouTube Link 2025-03-27T15:01Z 22.4M followers, 429.3K engagements
"How to overcome your mistakes Explore what prevents us from learning from our failures and how to become more resilient through cultivating a growth mindset. -- People often describe failure as a teachable moment a necessary stumble on our way to improvement. But learning from our mistakes isnt always easy especially when those failures are demoralizing overwhelming or just downright confusing. So what prevents us from turning our mistakes into mastery Explore the biggest obstacles of learning from failure and how to cultivate a growth mindset. Directed by Luiz Stockler. This video made"
YouTube Link 2023-10-19T15:00Z 22.4M followers, 1.9M engagements
"Why every world map is wrong - Kayla Wolf Dig into the inaccuracies of flat maps and how different map designs can shift our point of view. -- Fourteen Greenlands could fit in Africa but you wouldnt guess it from most maps of the world. The fact is every world map humans have ever made is wrong. Actually its impossible to make a flat map of the whole spherical world 100% right. So why do we bother with these inaccurate maps at all Kayla Wolf explores how even the simplest changes in map design can shift our point of view. Lesson by Kayla Wolf directed by Hernando Bahamon Globizco Studios."
YouTube Link 2021-03-29T15:00Z 22.4M followers, 969.6K engagements
"What is dj vu What is dj vu - Michael Molina What causes the sensation of dj vu Dive into the theories and psychology that could explain why youre having that feeling again. -- You might have felt it -- the feeling that you've experienced something before but in reality the experience is brand new. There are over [--] theories that attempt to explain the phenomenon of dj vu. Michael Molina explains how neuroimaging and cognitive psychology have narrowed down the theories that could explain that feeling you're having.again. Lesson by Michael Molina animation by Josh Harris. Sign up for our"
YouTube Link 2013-08-28T15:23Z 22.4M followers, 5.2M engagements
"How fast is the speed of thought - Seena Mathew Travel into the brain to see how its network of neurons transmit your thoughts and what factors determine how quickly you think. -- Your mortal enemy has captured you and hooked you up to a bizarre experiment. Hes extended your nervous system with one very long neuron to a target about [--] meters away. At some point hes going to fire an arrow. If you can then think a thought to the target before the arrow hits it hell let you go. So who wins that race Seena Mathew examines the speed of thought. Lesson by Seena Mathew directed by Andrew Foerster."
YouTube Link 2020-11-16T16:00Z 22.4M followers, 1M engagements
"Whats so great about the Great Lakes - Cheri Dobbs and Jennifer Gabrys View full lesson: http://ed.ted.com/lessons/what-s-so-great-about-the-great-lakes-cheri-dobbs-and-jennifer-gabrys The North American Great Lakes Huron Ontario Michigan Erie and Superior are so big that they border [--] states and contain [--] quadrillion liters of water. They span forest grassland and wetland habitats supporting a region thats home to [----] species. But how did such a vast and unique geological feature come to be Cheri Dobbs and Jennifer Gabrys takes us all the way back to the Ice Age to find out. Lesson by"
YouTube Link 2017-01-10T16:02Z 22.4M followers, 1.8M engagements
"Could we create dark matter - Rolf Landua Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/could-we-create-dark-matter-rolf-landua Eighty-five percent of the matter in our universe is dark matter. We dont know what dark matter is made of and weve yet to directly observe it but scientists theorize that we may actually be able to create it in the Large Hadron Collider the most powerful particle collider in the world. So how would that work CERN scientist Rolf Landua explains how to discover a new particle. Lesson by Rolf Landua directed by"
YouTube Link 2017-08-17T15:08Z 22.4M followers, 1.5M engagements
"Einstein's twin paradox explained - Amber Stuver Follow two astronauts into outer space to explore time dilation and Einsteins theory of relativity through the Twin Paradox thought experiment. -- On their 20th birthday identical twin astronauts volunteer for an experiment. Terra will remain on Earth while Stella will board a spaceship. Stellas ship will travel to visit a star that is [--] light-years away then return to Earth. As they prepare to part ways the twins wonder what will happen when theyre reunited. Who will be older Amber Stuver investigates the Twin Paradox. Lesson by Amber Stuver"
YouTube Link 2019-09-26T15:01Z 22.4M followers, 5.9M engagements
"Why are airplanes slower than they used to be - Alex Gendler Why arent commercial flights getting faster Dig into the technological and environmental problems facing supersonic flight. -- In [----] a British Airways plane flew from New York to London in a record-breaking two hours and fifty-three minutes. Today however passengers flying the same route can expect to spend no less than six hours in the air twice as long. So why in a world where everything seems to be getting faster have commercial flights lagged behind Alex Gendler details the problems facing supersonic flight. Lesson by Alex"
YouTube Link 2021-04-15T15:01Z 22.4M followers, 2.6M engagements
"Does stress affect your memory - Elizabeth Cox Explore the stages of how your memory stores information and how short-term stress impacts this process. -- You spend weeks studying for an important test. On the big day you wait nervously as your teacher hands it out. Youre working your way through when youre asked to define "ataraxia." You know youve seen the word before but your mind goes blank. What just happened Elizabeth Cox details the complex relationship between stress and memory. Lesson by Elizabeth Cox directed by Artrake Studio. Sign up for our newsletter:"
YouTube Link 2018-09-04T15:00Z 22.4M followers, 1.4M engagements
"How languages evolve - Alex Gendler View full lesson: http://ed.ted.com/lessons/how-languages-evolve-alex-gendler Over the course of human history thousands of languages have developed from what was once a much smaller number. How did we end up with so many And how do we keep track of them all Alex Gendler explains how linguists group languages into language families demonstrating how these linguistic trees give us crucial insights into the past. Lesson by Alex Gendler animation by Igor Coric. Alex Gendler Igor Coric linguistics language language families language evolution how languages"
YouTube Link 2014-05-27T15:00Z 22.4M followers, 3.4M engagements
"The ethical dilemma of self-driving cars - Patrick Lin View full lesson: http://ed.ted.com/lessons/the-ethical-dilemma-of-self-driving-cars-patrick-lin Self-driving cars are already cruising the streets today. And while these cars will ultimately be safer and cleaner than their manual counterparts they cant completely avoid accidents altogether. How should the car be programmed if it encounters an unavoidable accident Patrick Lin navigates the murky ethics of self-driving cars. Lesson by Patrick Lin animation by Yukai Du. philosophy thought experiment ethics tech ethics ethics of self-driving"
YouTube Link 2015-12-08T16:08Z 22.4M followers, 2.3M engagements
"What causes insomnia - Dan Kwartler Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/what-causes-insomnia-dan-kwartler What keeps you up at night Pondering deep questions Excitement about a big trip Stress about unfinished work What if the very thing keeping you awake was stress about losing sleep This seemingly unsolvable loop is at the heart of insomnia the worlds most common sleep disorder. So what is insomnia And is there any way to break the cycle Dan Kwartler details the science of insomnia. Lesson by Dan Kwartler animation by Sharon"
YouTube Link 2018-06-14T15:01Z 22.4M followers, 6.7M engagements
"The best way to become good at something might surprise you - David Epstein Are we building skills the wrong way Explore how having a wide range of experience can be better than early specialization. -- Theres a common idea that it takes [-----] hours of practice to become great at something. From an early age we are encouraged to choose our path focus specifically and start racking up those hours. But what if these head starts arent helping us the way we think they do What if theres a better way to excel David Epstein shares how a different approach could set us up for greater success."
YouTube Link 2025-11-04T16:01Z 22.4M followers, 1.4M engagements
"What if every satellite suddenly disappeared - Moriba Jah Explore what would happen if all of humanitys satellites disappeared and the real-life scenarios that could lead to such a catastrophe. -- What would happen if one day all of humanitys artificial satellites suddenly disappeared Within hours most of the planets traffic would grind to a halt the world economy would shut down and most countries would declare a state of emergency. Even in the best-case scenario our civilization would be set back by decades. So what are the odds of this actually happening Moriba Jah investigates. Lesson by"
YouTube Link 2021-02-02T16:01Z 22.4M followers, 436.2K engagements
"A glimpse of teenage life in ancient Rome - Ray Laurence Sign up for our newsletter and never miss an animation: http://bit.ly/TEDEdNewsletter Welcome to the world of Lucius Popidius Secundus a 17-year old living in Rome in [--] AD. His life is a typical one of arranged marriages coming-of-age festivals and communal baths. Take a look at this exquisitely detailed lesson on life of a typical Roman teenager two thousand years ago. Lesson by Ray Laurence animation by Cognitive Media. TEDEducation TED-Ed TED Ed Ray Laurence Cognitive Media Lucius Popidus Secundus Rome ancient Rome history teenager"
YouTube Link 2012-10-29T15:00Z 22.4M followers, 12.7M engagements
"Why you feel stuck and how to get motivated - Shannon Odell Dig into the psychology of how to overcome your motivational obstacles and regain focus when you feel stuck in achieving your goals. -- Many of us have experienced feeling stuck. People often report feeling highly motivated at the start and end of a project but the middle can feel untethered. It can happen when tackling something as simple as a term paper or as monumental as social inequality or the climate crisis. So are there ways to get unstuck Shannon Odell digs into the psychology of overcoming your motivational obstacles."
YouTube Link 2025-02-04T16:01Z 22.4M followers, 1.4M engagements
"How did English evolve - Kate Gardoqui View full lesson: http://ed.ted.com/lessons/how-did-english-evolve-kate-gardoqui What is the difference between "a hearty welcome" and "a cordial reception" In a brief action-packed history of the English language Kate Gardoqui explains why these semantically equal phrases evoke such different images. Lesson by Kate Gardoqui animation by Ben Tobitt. Kate Gardoqui Ben Tobitt TEDEducation TED-Ed TED Ed English language English language Saxon Celtic Old English Kate Gardoqui Ben Tobitt TEDEducation TED-Ed TED Ed English language English language Saxon"
YouTube Link 2012-11-27T16:02Z 22.4M followers, 1.4M engagements
"How did South African Apartheid happen and how did it finally end - Thula Simpson Explore how Dutch and British colonization of South Africa led to Apartheid the strict national policy of racial segregation. -- For [--] years South Africans lived under Apartheid a strict policy of segregation that barred the countrys Black majority from skilled high-paying jobs quality education voting and much more. So how did these laws come to be And how did this era of institutionalized discrimination finally come to an end Thula Simpson explores how colonization led to the national trauma of Apartheid."
YouTube Link 2023-12-05T16:00Z 22.4M followers, 1.3M engagements
"Has there ever been a good dictator - Stephanie Honchell Smith Examine the myth of the benevolent dictator which is a leader who holds absolute power yet only uses it for the common good. -- Under certain conditions the idea of a dictator can sound appealing like when a democracy isnt functioning as it should due to corruption or political polarization. People may believe the solution is a "benevolent dictator" a leader who only uses their absolute power for the common good. But can such a leader actually exist in todays world Stephanie Honchell Smith examines this common myth. Lesson by"
YouTube Link 2024-05-16T15:01Z 22.4M followers, 1.5M engagements
"How sugar affects the brain - Nicole Avena Check out our Patreon page: https://www.patreon.com/teded View full lesson: http://ed.ted.com/lessons/how-sugar-affects-the-brain-nicole-avena When you eat something loaded with sugar your taste buds your gut and your brain all take notice. This activation of your reward system is not unlike how bodies process addictive substances such as alcohol or nicotine -- an overload of sugar spikes dopamine levels and leaves you craving more. Nicole Avena explains why sweets and treats should be enjoyed in moderation. Lesson by Nicole Avena animation by STK"
YouTube Link 2014-01-07T16:04Z 22.4M followers, 19M engagements
"Do personality tests work - Merve Emre Examine how popular personality tests like the Myers-Briggs Type Indicator and the Enneagram are designed and their inconsistencies. -- In [----] a mother-daughter duo named Katherine Cook Briggs and Isabel Briggs Myers developed a questionnaire that classified peoples personalities into [--] types. Called the Myers-Briggs Type Indicator or MBTI it would go on to become one of the worlds most widely-used personality tests. But do these tests actually reveal truths about personality Merve Emre examines their design flaws. Lesson by Merve Emre directed by"
YouTube Link 2020-12-22T16:01Z 22.4M followers, 1.3M engagements
"Why elephants never forget - Alex Gendler View full lesson: http://ed.ted.com/lessons/why-elephants-never-forget-alex-gendler Its a common saying that elephants never forget. But the more we learn about elephants the more it appears that their impressive memory is only one aspect of an incredible intelligence that makes them some of the most social creative and benevolent creatures on Earth. Alex Gendler takes us into the incredible unforgettable mind of an elephant. Lesson by Alex Gendler animation by Avi Ofer. TED-Ed TED Education TED Ed TED TEDx Elephants Poaching Animal intelligence Tusk"
YouTube Link 2014-11-13T16:02Z 22.4M followers, 9.3M engagements
"Why are cockroaches so hard to kill - Ameya Gondhalekar Dig into the genetic adaptations of cockroaches and find out what makes it so hard to get rid of these tenacious creatures. -- In ancient Egypt there was a spell that declared Be far from me O vile cockroach. Thousands of years later were still trying to oust these insects. But from poison traps to brandished slippers cockroaches seem to weather just about everything we throw at them. So what makes cockroaches so hard to kill Ameya Gondhalekar digs into the genetic wonders of this troublingly tenacious creature. Lesson by Ameya"
YouTube Link 2022-04-19T15:00Z 22.4M followers, 4.3M engagements
"How do tornadoes form - James Spann View full lesson: http://ed.ted.com/lessons/how-do-tornadoes-form-james-spann Tornadoes are the most violent storms on Earth with wind velocities that can exceed [---] miles per hour. How do these terrifying cyclones form Meteorologist James Spann sheds light on the lifespan of tornadoes as they go from supercell thunderstorms to terrible twisters before eventually dissolving back into thin air. Lesson by James Spann animation by Provncia Studio. James Spann Provinia Studio tornado tornadoes supercell how tornadoes form thunderstorms storm storm chasing"
YouTube Link 2014-08-19T15:02Z 22.4M followers, 10.6M engagements
"The myth behind the Chinese zodiac - Megan Campisi and Pen-Pen Chen Want to support TED-Ed's nonprofit mission Check out our Patreon page: https://www.patreon.com/teded View full lesson: http://ed.ted.com/lessons/the-myth-behind-the-chinese-zodiac-megan-campisi-and-pen-pen-chen Whats your sign In Western astrology its a constellation determined by when your birthday falls in the calendar. But according to the Chinese zodiac () its your shuxiang meaning the animal assigned to your birth year. Of the many myths explaining these animal signs and their arrangement the most enduring one is that of"
YouTube Link 2017-01-26T16:00Z 22.4M followers, 9.4M engagements
"Why should you read Moby Dick - Sascha Morrell Dive into Herman Melvilles classic novel Moby Dick the story of Captain Ahabs hunt for revenge against the white whale who bit off his leg. -- A mountain separating two lakes. A room papered floor to ceiling with bridal satins. The lid of an immense snuffbox. These seemingly unrelated images take us on a tour of a sperm whales head in Herman Melvilles "Moby Dick." Though the book features pirates typhoons high-speed chases and giant squid its anything but a conventional seafaring adventure. Sascha Morrell digs into the classic novel. Lesson by"
YouTube Link 2020-05-26T15:01Z 22.4M followers, 1M engagements
"Upstairs downstairs: The life of a British maid - Stephanie Honchell Smith Follow Alice Sutton a servant in Edwardian England as she prepares the estate for a visitor and fights for women's suffrage. -- Its just before dawn in [----] at Wroxton Abbey and 16-year-old Alice Suttons mind is already spinning. The underhousemaid has a full day ahead of her as the estate prepares for the evenings guest: Prince Arthur. This is Alices chance to prove herself to her new employers but there are other forces at play. Stephanie Honchell Smith details a day in the life of a servant in Edwardian England."
YouTube Link 2026-01-08T16:00Z 22.4M followers, 416.9K engagements
"The myth of Hercules: [--] labors in 8-bits - Alex Gendler Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/the-myth-of-hercules-12-labors-in-8-bits-alex-gendler Hercules son of Zeus and champion of humankind stricken with a temporary curse of madness has just committed the most unspeakable crime imaginable. Seeking to atone for the deaths of his family Hercules must complete twelve impossible tasks that pit him against invincible monsters and unfathomable forces. Alex Gendler retells this epic series of adventures. Lesson by Alex Gendler"
YouTube Link 2018-09-25T15:00Z 22.4M followers, 7.9M engagements
"Is it really that bad to eat cookie dough - Emma Bryce Explore how Salmonella spreads from chickens to humans and learn how this crafty microscopic pathogen makes us sick. -- Salmonella infects millions worldwide each year causing fever stomach cramps and diarrhea. And these effects can be extreme: Salmonella is the leading cause of hospitalizations and deaths from food poisoning. So how does it spread from chickens to humans And how does it make us sick Emma Bryce follows the journey of this crafty pathogen from farm to plate. Lesson by Emma Bryce directed by Denys Spolitak. Support Our"
YouTube Link 2025-09-25T15:03Z 22.4M followers, 563.7K engagements
"Cell vs. virus: A battle for health - Shannon Stiles How does your body fight a virus Take a look inside your cells to witness how they produce antibodies and fight to keep you healthy. -- All living things are made of cells. In the human body these highly efficient units are protected by layer upon layer of defense against icky invaders like the cold virus. Shannon Stiles takes a journey into the cell introducing the microscopic arsenal of weapons and warriors that play a role in the battle for your health. Lesson by Shannon Stiles animation by Igor Coric. Animator's website:"
YouTube Link 2014-04-17T15:12Z 22.4M followers, 12.5M engagements
"How do executive orders work - Christina Greer Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/how-do-executive-orders-work-christina-greer On January [--] [----] Abraham Lincoln legally changed the status of over [--] million people from slave to free. But his emancipation proclamation wasnt a law it was an executive order. The framers of the American Constitution made this power available to the executive branch. But what exactly is this tool how does it work and whats the extent of its power Christina Greer explains. Lesson by Christina Greer"
YouTube Link 2017-09-18T15:00Z 22.4M followers, 1.7M engagements
"The myth of Pandoras box - Iseult Gillespie Find out how students can share their ideas as TED Talks here: http://bit.ly/2zpAQUc View full lesson: https://ed.ted.com/lessons/the-myth-of-pandora-s-box-iseult-gillespie Pandora was the first mortal woman breathed into being by Hephaestus god of fire. The gods gave her gifts of language craftsmanship and emotion. From Zeus she received two gifts: the trait of curiosity and a heavy box screwed tightly shut -- never to be opened. But what treasure could never be seen by human eyes and why was it in her care Iseult Gillespie explores the mystery of"
YouTube Link 2019-01-15T15:59Z 22.4M followers, 9.1M engagements
"How science fiction can help predict the future - Roey Tzezana View full lesson: http://ed.ted.com/lessons/how-science-fiction-can-help-predict-the-future-roey-tzezana Would you like to know whats in our future Whats going to happen to humanity tomorrow next year or even a millennium from now Well youre not alone. Everyone from governments to military to industry leaders do as well and they all employ people - called futurists - who attempt to forecast the future. Roey Tzezana explains some of the ways that futurists venture to do so. Lesson by Roey Tzezana animation by TED-Ed. Roey Tzezana"
YouTube Link 2016-01-26T16:07Z 22.4M followers, 449.3K engagements
"Licking bees and pulping trees: The reign of a wasp queen - Kenny Coogan Take a look inside a hive as a wasp queen begins her reign; founding a colony hunting to feed her brood and defending against intruders. -- As the sun rises something royal stirs inside a pile of firewood. It's the wasp queen; one of thousands who mated in late autumn and hibernated through the winter. Now she must emerge into the spring air to begin her reign. This queen is the lone survivor of her old hive and now she must become the foundress of a new one. Kenny Coogan details a year in the life of a wasp queen."
YouTube Link 2020-01-28T16:00Z 22.4M followers, 3.3M engagements
"What happened to trial by jury - Suja A. Thomas View full lesson: http://ed.ted.com/lessons/what-happened-to-trial-by-jury-suja-a-thomas In the United States today juries decide less than 4% of criminal cases and less than 1% of civil cases filed in court. At the same time jury systems in other countries are growing. So what happened in the US And could the disappearance of juries be a good thing Suja A. Thomas explores both sides of this dilemma. Lesson by Suja A. Thomas animation by Globizco. TED TED-Ed TED Ed TED Education Suja A. Thomas Globizco jury trial trial by jury legal system judge"
YouTube Link 2017-03-02T16:13Z 22.4M followers, 870.4K engagements
"Who built Great Zimbabwe And why - Breeanna Elliott View full lesson: http://ed.ted.com/lessons/who-built-great-zimbabwe-and-why-breeanna-elliott Stretched across a tree-peppered expanse in Southern Africa lies the ruins of Great Zimbabwe a medieval stone city of astounding wealth. Located in the present-day country of Zimbabwe its the site of the second largest settlement ruins in Africa. But its history is controversial defined by decades of dispute about who built it and why. Breeanna Elliott explores the mystery of Great Zimbabwe. Lesson by Breeanna Elliott directed by JodyPrody. TED"
YouTube Link 2017-06-22T15:01Z 22.4M followers, 1.3M engagements
"What happens to your brain during a migraine - Marianne Schwarz Find out whats happening in the brain when you have a migraine and what we still dont know about this complex disorder. -- A throbbing pounding headache. Bright zigzagging lines across your field of vision. Sensitivity to light lingering fatigue disrupted sleep. While an incapacitating headache is one of the most common symptoms a migraine can include any of these experiences. So what exactly is a migraine And what causes it Marianne Schwarz explores what we know and don't know about this complex disorder. Lesson by Marianne"
YouTube Link 2021-05-17T15:00Z 22.4M followers, 4.1M engagements
"Can you freeze your body and come back to life - Shannon N. Tessier Dig into the field of cryobiology and explore the possibility of humans being frozen and preserved for future resurrection. -- In [----] James Bedford had a plan to cheat death. He was the first person to be cryogenically frozen. This process promised to preserve his body until a theoretical future when humanity could cure any illness and essentially reverse death. So is it possible to freeze a human preserve them indefinitely and then thaw them out Shannon N. Tessier explores the challenges of human cryopreservation. Lesson by"
YouTube Link 2023-02-14T16:01Z 22.4M followers, 1.1M engagements
"What color is Tuesday Exploring synesthesia - Richard E. Cytowic View full lesson: http://ed.ted.com/lessons/what-color-is-tuesday-exploring-synesthesia-richard-e-cytowic How does one experience synesthesia -- the neurological trait that combines two or more senses Synesthetes may taste the number [--] or attach a color to each day of the week. Richard E. Cytowic explains the fascinating world of entangled senses and why we may all have just a touch of synesthesia. Lesson by Richard E. Cytowic animation by TED-Ed. Richard Cytowic synesthesia synesthete who has synesthesia what is synesthesia"
YouTube Link 2013-06-10T15:00Z 22.4M followers, 1.9M engagements
"How the heart actually pumps blood - Edmond Hui View full lesson: http://ed.ted.com/lessons/how-the-heart-actually-pumps-blood-edmond-hui For most of history scientists weren't quite sure why our hearts were beating or even what purpose they served. Eventually we realized that these thumping organs serve the vital task of pumping clean blood throughout the body. But how Edmond Hui investigates how it all works by taking a closer look at the heart's highly efficient ventricle system. Lesson by Edmond Hui animation by Anton Bogaty. Edmond Hui Anton Bogaty heart Leonardo Da Vinci (Author)"
YouTube Link 2014-05-20T15:00Z 22.4M followers, 4.4M engagements
"Whats the smartest age - Shannon Odell At what age are you smartest Dig into how your brain development affects your skills at different stages of your life. -- Tomorrow is the annual Brain Clash a decathlon of mental challenges trivia competitions and puzzles. Amir needs a smart and capable teammate and must choose between three people; all of different ages and talents. So who should Amir choose for the contest Shannon Odell breaks down the idea of smart and explores how our brain development impacts our skills at various stages of our lives. Lesson by Shannon Odell directed by Biljana"
YouTube Link 2022-10-18T15:01Z 22.4M followers, 2.5M engagements
"How much electricity does it take to power the world Discover how much electricity humanity uses and how clean energy sources could help revolutionize our energy supply in the future. -- All around the world millions of people are flipping a switch plugging in and pressing an on button every second. So how much electricity does humanity use And how much will we need in the future Discover how much energy it takes to power the world and how clean energy sources could help revolutionize our electricity supply. Directed by Lisa LaBracio. Animation and art direction: Vicente Nir AIM Creative"
YouTube Link 2021-03-09T16:00Z 22.4M followers, 474.4K engagements
"Whats the big deal with gluten - William D. Chey View full lesson: http://ed.ted.com/lessons/what-s-the-big-deal-with-gluten-william-d-chey If you've been to a restaurant in the last few years youve likely seen the words gluten-free written somewhere on the menu. But what exactly is gluten and why cant some people process it And why does it only seem to be a problem recently William D. Chey unravels the facts behind celiac disease wheat allergies and non-celiac gluten sensitivity. Lesson by William D. Chey animation by Stretch Films Inc. Gluten Nutrition Wheat allergy Celiac disease"
YouTube Link 2015-06-02T15:07Z 22.4M followers, 4.2M engagements
"How to 3D print human tissue - Taneka Jones Explore the science of bioprinting a type of 3D printing that uses bioink a printable material that contains living cells. -- There are currently hundreds of thousands of people on transplant lists waiting for critical organs like kidneys hearts and livers that could save their lives. Unfortunately there arent enough donor organs available to fill that demand. What if instead of waiting we could create new customized organs from scratch Taneka Jones explores bioprinting a new branch of regenerative medicine. Lesson by Taneka Jones directed by Hype"
YouTube Link 2019-10-17T15:00Z 22.4M followers, 843.2K engagements
"History vs. Russias most infamous empress - Carolyn Harris Catherine the Great presided over a golden age of Russian expansion but was she a dedicated ruler or a ruthless oppressor -- Catherine the Great Empress of Russia for over three decades used strategic dalliances military might and cutting-edge philosophy to modernize expand and transform the Russian Empire. But was she a dedicated ruler determined to move Russia into the future or a ruthless monarch who oppressed anyone who questioned her Carolyn Harris puts this controversial figure on trial. Lesson by Carolyn Harris directed by"
YouTube Link 2025-10-21T15:00Z 22.4M followers, 276.9K engagements
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