@crashcourse Avatar @crashcourse CrashCourse

CrashCourse posts on YouTube about education, green, history, hank the most. They currently have [----------] followers and [---] posts still getting attention that total [-------] engagements in the last [--] hours.

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Social Influence

Social category influence countries 21.94% finance 5.27% travel destinations 4.84% technology brands 3.01% currencies #3640 celebrities 2.58% stocks 2.04% social networks 1.4% automotive brands 0.86% gaming 0.43%

Social topic influence education #615, green #186, history #1757, hank #22, science #917, united states 8.71%, what is #872, in the 8.17%, the world #2676, to the 6.24%

Top accounts mentioned or mentioned by @the @curein60_nt @edtechari @gmailcom @simplscientist @n008817671329 @gopage216695 @n0213764313763 @n072819311727 @bdbiam @joshlama @wordlessrage @n05albums @thethoughtemporium @cosmicskeptic @tommocarroll @besmart @zenatisyo7182 @veritastruthyt @falemetv

Top Social Posts

Top posts by engagements in the last [--] hours

"Alexander the Great: Crash Course World History #8 In which you are introduced to the life and accomplishments of Alexander the Great his empire his horse Bucephalus the empires that came after him and the idea of Greatness. Is greatness a question of accomplishment of impact or are people great because the rest of us decide they're great Also discussed are Kim Kardashian and the Situation gender bias in history Catherine the Great's death (not via horse love) the ardent love other generals--from Pompey the Great to Napoleon--had for Alexander and a bit of Persian history. Chapters:"
YouTube Link 2012-03-15T22:18Z 16.9M followers, 6.6M engagements

"Trauma and Addiction: Crash Course Psychology #31 So what do Batman and J.R.R. Tolkien have in common Post Traumatic Stress Disorder. It used to be called "Shellshock" and it can be really really really destructive. In this episode of Crash Course Psychology Hank lays out the low down on PTSD and how trauma can affect the brain. Plus a look at how addiction can play into trauma and the different types of treatments used to help those afflicted. Want more videos about psychology Check out our sister channel SciShow Psych at https://www.youtube.com/scishowpsych -- Chapters: Introduction: J.R.R."
YouTube Link 2014-09-22T20:46Z 16.9M followers, 3.4M engagements

"Deficits & Debts: Crash Course Economics #9 What is debt What is a deficit And do these things have different outcomes for individuals and nations Adriene and Jacob answer all these questions and more on this week's Crash Course Econ. Deficit and debt are easy to misunderstand but luckily they're also pretty easy to understand. This week we'll explain what deficit and debt are and talk about what the sources of deficit and debt are for the US Government. Also we'll take a very special trip to Cliffordonia to try and understand these concepts and get a look at what a colonial-era space program"
YouTube Link 2015-09-23T23:20Z 16.9M followers, 1.5M engagements

"Their Eyes Were Watching God: Crash Course Literature [---] In which John Green reads Zora Neale Hurston's novel "Their Eyes Were Watching God" and talks to you about it. You'll learn about Zora Neale Hurston's life and we'll also look at how the interpretations of the book have changed over time. Also this book will give you a healthy appreciation for the rabies vaccine and the terrible dilemmas you've avoided thanks to that modern development. *** Consider supporting local book stores by purchasing your books through our Bookshop affiliate link https://bookshop.org/shop/complexly or at your"
YouTube Link 2016-07-07T17:16Z 16.9M followers, 764.2K engagements

"Haitian Revolutions: Crash Course World History #30 Ideas like liberty freedom and self-determination were hot stuff in the late 18th century as evidenced by our recent revolutionary videos. Although freedom was breaking out all over many of the societies that were touting these ideas relied on slave labor. Few places in the world relied so heavily on slave labor as Saint-Domingue France's most profitable colony. Slaves made up nearly 90% of Saint-Domingue's population and in [----] they couldn't help but hear about the revolution underway in France. All the talk of liberty equality and"
YouTube Link 2012-08-16T22:19Z 16.9M followers, 4.4M engagements

"The Golden Age of Hollywood: Crash Course Film History #11 It's time for the glitz and the glamour of big motion pictures that helped keep American spirits up during and after the Great Depression. Sound was a huge change to motion pictures but there were still a few technological innovations to come like color and aspect ration. Today Craig walks us through the Golden Age of Hollywood. Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios Want to know more about Craig https://www.youtube.com/user/wheezywaiter The Latest from PBS Digital Studios:"
YouTube Link 2017-06-30T14:39Z 16.9M followers, 510.4K engagements

"Borders & Identity: Crash Course Latin American Literature #7 Where you are affects WHO you are. But what happens when you cross a border In this episode of Crash Course Latin American Literature well explore how exile and border crossings have inspired Latin American authors to cross literary borders too. Introduction: Borders 00:00 Julio Cortzar 0:41 Chicanas & Gloria Anzalda 4:03 Yuri Herrera 6:54 Review & Credits 9:07 Sources: https://docs.google.com/document/d/1eE7g4-k6PD7C6wNBzeJIO8GCDHpoJl8ldDjKyq_2yYg/edittab=t.0 To learn more check out these videos:"
YouTube Link 2025-12-18T17:00Z 16.9M followers, 28.1K engagements

"Morphology: Crash Course Linguistics #2 What even is a word Well linguists dont really know But thats ok When linguists want to get super specific we dont even talk about words we talk about morphemes instead. In this episode of Crash Course Linguistics were diving into the topic of morphology and what makes up these things we call words. Want even more linguistics Check out the Lingthusiasm podcast hosted by the writers of Crash Course Linguistics: https://lingthusiasm.com/ Check out Self-Evident on PBS Voices: https://youtu.be/Bwsne4eMVyU Acknowledgements: Daniela Diedrich William Forshaw"
YouTube Link 2020-09-18T18:00Z 16.9M followers, 714.9K engagements

"You Know I'm All About that Bayes: Crash Course Statistics #24 Today were going to talk about Bayes Theorem and Bayesian hypothesis testing. Bayesian methods like these are different from how we've been approaching statistics so far because they allow us to update our beliefs as we gather new information - which is how we tend to think naturally about the world. And this can be a really powerful tool since it allows us to incorporate both scientifically rigorous data AND our previous biases into our evolving opinions. CORRECTION: At 2:09 the righthand side of the equation should not have"
YouTube Link 2018-07-25T20:57Z 16.9M followers, 390.8K engagements

"Acid-Base Reactions in Solution: Crash Course Chemistry #8 Last week Hank talked about how stuff mixes together in solutions. Today and for the next few weeks he will talk about the actual reactions happening in those solutions - atoms reorganizing themselves to create whole new substances in the processes that make our world the one we know and love. This week we focus on acids and bases and their proton-exchanging ways. Watch this video in Spanish on our Crash Course en Espaol channel https://youtu.be/Or2h02mqvD4 Pssst. we made flashcards to help you review the content in this episode Find"
YouTube Link 2013-04-09T05:23Z 16.9M followers, 3.6M engagements

"Recession Hyperinflation and Stagflation: Crash Course Economics #13 If you're ever put in charge of a national economy there are a few things you should try to avoid. Before you laugh just remember you COULD be in charge of an economy someday. Someone has to do it and anyway if it could happen to Alan Greenspan it could happen to you too. The first thing you're going to want to avoid is hyperinflation. Don't print too much money okay Actually it's a little more complicated than that. Jacob and Adriene will explain. You're also going to want to stay away from recessions and especially"
YouTube Link 2015-10-30T16:28Z 16.9M followers, 1.4M engagements

"Real Gases: Crash Course Chemistry #14 Hank bursts our ideal gas law bubble er balloon and brings us back to reality explaining how the constants in the gas law aren't all that constant; how the ideal gas law we've spent the past two weeks with has to be corrected for volume because atoms and molecules take up space and for pressure because they're attracted to each other; that Einstein was behind a lot more of what we know today than most people realize; and how a Dutch scientist named Johannes van der Waals figured out those correction factors in the late 19th century and earned a Nobel"
YouTube Link 2013-05-20T23:51Z 16.9M followers, 980.3K engagements

"Electric Current: Crash Course Physics #28 So electric current works like a river. kinda. Instead of flowing based on elevation electric current works a little differently. But it's a good metaphor. In this episode of Crash Course Physics Shini talks to us about electric current voltaic cells and how we get electric charge. -- Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios -- Want to find Crash Course elsewhere on the internet Facebook - http://www.facebook.com/YouTubeCrashC. Twitter - http://www.twitter.com/TheCrashCourse Tumblr -"
YouTube Link 2016-10-20T21:30Z 16.9M followers, 1.3M engagements

"Sex & Sexuality: Crash Course Sociology #31 While sociology is a social science we can use it to explore some intensely personal private things. Today well explore what sociology can tell us about sex and sexuality. Well also see what the three sociological paradigms have to say about sexuality and sexual orientations. Crash Course is made with Adobe Creative Cloud. Get a free trial here: https://www.adobe.com/creativecloud/catalog/desktop.html *** References: Sociology by John J. Macionis 15th edition (2014) The Williams Institute: How Many People are Lesbian Gay Bisexual and Transgender"
YouTube Link 2017-10-30T20:03Z 16.9M followers, 1.2M engagements

"Naked Eye Observations: Crash Course Astronomy #2 Today on Crash Course Astronomy Phil invites you to head outside and take a look at all the incredible things you can see with your naked eye. Check out the Crash Course Astronomy solar system poster here: http://store.dftba.com/products/crashcourse-astronomy-poster -- Chapters: Introduction: Naked Eye Observations 00:00 Classifying Stars by Magnitude 2:08 Star Colors 2:24 Constellations 3:09 Names of Stars 4:34 Light Pollution 5:16 Why Do Stars Twinkle 6:40 Naked-Eye Planets 7:07 The Sky's Motion 7:25 Which Stars Can We See 9:34 Review 10:30"
YouTube Link 2015-01-22T23:17Z 16.9M followers, 2.3M engagements

"The Enlightenment: Crash Course European History #18 So far in this series we've covered a lot of war disease climate disaster and some more war. Well prepare yourself for something a little more positive. This week we're talking about the Enlightenment. In this video you'll learn about the ideas of Voltaire Rousseau Montesquieu Kant Smith Hume and a bunch of other people whose ideas have been so impactful they still influence the way we think about the world today. Sources Hunt Lynn et al. Making of the West: Peoples and Cultures. Boston: Bedford St. Martins [----]. Smith Bonnie G. et al."
YouTube Link 2019-09-09T22:51Z 16.9M followers, 2.7M engagements

"The Market Revolution: Crash Course US History #12 In which John Green teaches you about the Market Revolution. In the first half of the 19th century the way people lived and worked in the United States changed drastically. At play was the classic (if anything in a 30-year-old nation can be called classic) American struggle between the Jeffersonian ideal of individuals sustaining themselves on small farms vs. the Hamiltonian vision of an economy based on manufacturing and trade. I'll give you one guess who won. Too late It was Hamilton which is why if you live in the United States you"
YouTube Link 2013-04-26T15:46Z 16.9M followers, 3.5M engagements

"The Alignment Problem Explained: Crash Course Futures of AI #4 Could a robot dedicated to a good cause end up destroying the world Well maybe. In this episode we explore how powerful AI could end up causing us harm regardless of what its programmed for. Between misuse by humans alignment problems and instrumental goals even AI built with good intentions could end up breaking badunless we do something about it. About This Series: AI is changing FAST so rather than doing a full Crash Course series of 12+ episodes weve prepared a mini-series of just the basics. Crash Course will never tell you"
YouTube Link 2025-12-10T17:00Z 16.9M followers, 25.5K engagements

"Lab Techniques & Safety: Crash Course Chemistry #21 Hank takes a break from the desk to bring you to the lab in order to demonstrate some important points about the practical side of chemistry - experimentation in the laboratory. You'll learn what to wear in the lab how to dispose of chemicals safely how to avoid the most common accidents how to pour solutions properly what the HazMat diamond means what an MSDS is and how to use a fume hood. And as a reward for sticking with him through this maybe less-than-thrilling lecture you'll see Hank subject himself to an exciting piece of safety"
YouTube Link 2013-07-08T19:37Z 16.9M followers, 2.8M engagements

"Public Opinion: Crash Course Government and Politics #33 So today Craig is finally going to start talking about politics. Now up until this point we've specifically been looking at government - that is answering the questions of who what and how in relation to policies. But politics is different in that it looks at why certain policies are made. We're going to start today by looking at public opinion - specifically how the public does (and does not) influence our elected officials. Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios Support is provided by"
YouTube Link 2015-10-03T00:24Z 16.9M followers, 823.1K engagements

"The Great Migration: Crash Course Black American History #24 In [----] 90% of Black Americans lived in the South. By [----] around [---] million Black Americans had left their homes and 77% lived in the South. By [----] 52% of Black Americans remained in the South. People moved away for many reasons including increased opportunity in the more industrial North and West. They sought a relatively safer life away from the lynchings and violence that were concentrated in the South. This Great Migration shaped 20th-century America in countless ways but we're going to try to count some of them in this"
YouTube Link 2021-11-06T15:53Z 16.9M followers, 641.8K engagements

"The Crusades - Pilgrimage or Holy War: Crash Course World History #15 In which John Green teaches you about the Crusades embarked upon by European Christians in the 12th and 13th centuries. Our traditional perception of the Crusades as European Colonization thinly veiled in religion isn't quite right. John covers the First through the Fourth Crusades telling you which were successful which were well-intentioned yet ultimately destructive and which were just plain crazy. Before you ask no he doesn't cover the Children's Crusade in which children were provoked to gather for a Crusade and then"
YouTube Link 2012-05-03T23:59Z 16.9M followers, 8M engagements

"Crash Course Scientific Thinking Preview Science is one of the best ways we have of understanding whats going on around us. In Crash Course Scientific Thinking well explore the foundational principles that underlie scientific thought. Course Description In [--] episodes Crash Course Scientific Thinking will teach learners the foundational principles underlying scientific thought pulling back the curtain on processes like peer review interrogating what makes sources reliable (or not) unpacking how consensus is reached and revealing how scientific understanding changes over time. Ultimately"
YouTube Link 2026-01-13T17:01Z 16.9M followers, 79.3K engagements

"The Raft the River and The Weird Ending of Huckleberry Finn: Crash Course Literature [---] This week we're continuing our discussion of Mark Twain's 'The Adventures of Huckleberry Finn.' This is part two of our talk about Huck Finn and this time we're looking at the metaphors in the book a little bit about what the metaphors like the Island and the River and the Raft might mean and why you should pay attention to said metaphors. We'll also look at the ending of the book which a lot of people (including us) believe isn't up to the standards of the rest of the novel. Crash Course is on Patreon"
YouTube Link 2016-07-20T21:19Z 16.9M followers, 486.8K engagements

"Crash Course Organic Chemistry Preview Welcome to Crash Course Organic Chemistry hosted by Deboki Chakravarti Starting next week we'll be tackling the notoriously complicated subject of organic chemistry and hopefully having some fun along the way Series Sources: Brown W. H. Iverson B. L. Ansyln E. V. Foote C. Organic Chemistry; 8th ed.; Cengage Learning Boston [----]. Bruice P. Y. Organic Chemistry 7th ed.; Pearson Education Inc. United States [----]. Clayden J. Greeves N. Warren. S. Organic Chemistry 2nd ed.; Oxford University Press New York [----]. Jones Jr. M.; Fleming S. A. Organic Chemistry"
YouTube Link 2020-04-22T19:30Z 16.9M followers, 1.2M engagements

"What to know about orgasms: Sex Ed #13 Why and how do we orgasm In this episode of Crash Course Sex Ed well break down the Big Oits physical aspects gendered expectations and misconceptions. Plus a fun cameo from a penis-camera. Introduction: The Big O 00:00 Orgasms & Erogenous Zones 0:46 Masters & Johnson 2:55 The Dual Control Model 4:20 The Orgasm Gap 5:46 Review & Credits 8:05 Sources: https://docs.google.com/document/d/1d7cG1ZMhBTROD2ZiMGiDwFwklPJAFgtip1RPkYVNvkg/editusp=sharing For more information on the topics in this episode check out this resource from our partners at the Kinsey"
YouTube Link 2025-06-12T16:01Z 16.9M followers, 179K engagements

"Tissues Part 1: Crash Course Anatomy & Physiology #2 In this episode of Crash Course Anatomy & Physiology Hank gives you a brief history of histology and introduces you to the different types and functions of your body's tissues. Pssst. we made flashcards to help you review the content in this episode Find them on the free Crash Course App Download it here for Apple Devices: https://apple.co/3d4eyZo Download it here for Android Devices: https://bit.ly/2SrDulJ Chapters: Introduction 00:00 Nervous Muscle Epithelial & Connective Tissues 1:23 History of Histology 2:07 Nervous Tissue Forms the"
YouTube Link 2015-01-12T19:49Z 16.9M followers, 7M engagements

"What is kink: Sex Ed #15 What does it mean to be kinky In our final episode of Crash Course Sex Ed well learn that some unusual sexual desires are actually pretty common. Well talk about the differences between kinks fetishes and paraphilias and the subjective nature of whats normal. Introduction: Is This Normal 00:00 Kinks 0:40 Why Are People Kinky 1:59 Fetishes 2:46 BDSM 3:39 Paraphilias 5:23 Review & Credits 6:36 Sources: https://docs.google.com/document/d/1d7cG1ZMhBTROD2ZiMGiDwFwklPJAFgtip1RPkYVNvkg/editusp=sharing For more information on the topics in this episode check out this resource"
YouTube Link 2025-06-26T16:01Z 16.9M followers, 156.4K engagements

"Mean Median and Mode: Measures of Central Tendency: Crash Course Statistics #3 Today were going to talk about measures of central tendency - those are the numbers that tend to hang out in the middle of our data: the mean the median and mode. All of these numbers can be called averages and theyre the numbers we tend to see most often - whether its in politics when talking about polling or income equality to batting averages in baseball (and cricket) and Amazon reviews. Averages are everywhere so today were going to discuss how these measures differ how their relationship with one another can"
YouTube Link 2018-02-07T23:12Z 16.9M followers, 1.2M engagements

"Ida B. Wells: Crash Course Black American History #20 In this video we'll learn about the life story of journalist orator teacher suffragette and anti-lynching activist Ida B. Wells-Barnett. Ida B. Wells made her name writing and speaking and working to improve the lives of Black Americans. She wrote for a number of outlets and covered a wide array of issues. Clint's book How the Word is Passed is available now https://bookshop.org/a/3859/9780316492935 Watch our videos and review your learning with the Crash Course App Download here for Apple Devices: https://apple.co/3d4eyZo Download here"
YouTube Link 2021-10-08T22:01Z 16.9M followers, 311.3K engagements

"Ford Carter and the Economic Malaise: Crash Course US History #42 In which John Green teaches you about the economic malaise that beset the United States in the 1970s. A sort of perfect storm of events it combined the continuing decline of America's manufacturing base with the oil shocks of [----] and [----] and brought about a stagnant economy paired with high inflation. Economists with a flair for neologisms and portmanteau words called this "stagflation" and it made people miserable. Two presidential administrations were scuttled at least in part by these economic woes; both Gerald Ford and"
YouTube Link 2013-12-21T22:01Z 16.9M followers, 2.1M engagements

"Parasympathetic Nervous System: Crash Course Anatomy & Physiology #15 This week we are looking at your parasympathetic division which is the "resting and digesting" unit. Unfortunately learning about this de-stressing division also involves a whole lot of memorization. Don't worry though - we've got some mnemonic devices to help you out Pssst. we made flashcards to help you review the content in this episode Find them on the free Crash Course App Download it here for Apple Devices: https://apple.co/3d4eyZo Download it here for Android Devices: https://bit.ly/2SrDulJ Chapters: Introduction:"
YouTube Link 2015-04-20T21:00Z 16.9M followers, 2.1M engagements

"The Industrial Economy: Crash Course US History #23 In which John Green teaches you about the Industrial Economy that arose in the United States after the Civil War. You know how when you're studying history and you're reading along and everything seems safely in the past and then BOOM you think "Man this suddenly seems very modern." For me that moment in US History is the post-Reconstruction expansion of industrialism in America. After the Civil War many of the changes in technology and ideas gave rise to this new industrialism. You'll learn about the rise of Captains of Industry (or Robber"
YouTube Link 2013-07-25T23:21Z 16.9M followers, 4M engagements

"Government Regulation: Crash Course Government and Politics #47 Today were going to wrap up our discussion of economic policy by looking at government regulation. We're going to talk about the government's goals for the U.S. economy and the policies it employs to achieve those goals. Ever since the New Deal we've seen an increased role of the government within the economy - even with the deregulation initiatives of President Carter and Reagan in the 80's. Now this is all pretty controversial and we're going to talk about it as this is a long way from the federal government handed down by the"
YouTube Link 2016-02-06T21:46Z 16.9M followers, 493.7K engagements

"Personal Identity: Crash Course Philosophy #19 Today Hank is building on last weeks exploration of identity to focus on personal identity. Does it in reside in your body Is it in the collective memories of your consciousness There are of course strengths and weaknesses to both of these ideas and thats what were talking about today. -- Images and video via VideoBlocks or Wikimedia Commons licensed under Creative Commons by 4.0: https://creativecommons.org/licenses/by/4.0/ -- Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios Crash Course Philosophy is"
YouTube Link 2016-06-27T21:00Z 16.9M followers, 2.1M engagements

"🍌 What is Geography Crash Course Geography #1 So what is geography In our first episode of Crash Course Geography we will endeavor to answer this seemingly simple question with the help of a similarly simple factoid: that the US imports more than [--] billion pounds of bananas from Guatemala each year. But as it turns out beneath the kinds of factoids we usually associate with Geography are much grander stories that really are Geography. So let's go a little bananas as we explore the sordid history of the Chiquita banana. Follow Aliz Twitter: https://twitter.com/alizecarrere Instagram:"
YouTube Link 2020-11-30T21:01Z 16.9M followers, 1.2M engagements

"The Economics of Death: Crash Course Economics #30 We need to have a talk about your future. You're going to die. We all are. And it's probably going to be expensive. This week on CC Econ Adriene is talking about the economics of death. Some of the expense is tied to the cost of end-of-life health care but funerals are a big business too. Jacob lives on here: http://www.youtube.com/acdcleadership Crash Course is on Patreon You can support us directly by signing up at http://www.patreon.com/crashcourse Thanks to the following Patrons for their generous monthly contributions that help keep"
YouTube Link 2016-04-16T19:44Z 16.9M followers, 441.5K engagements

"Cheese Catastrophes & Process Control: Crash Course Engineering #25 Engineering like life could really use a lot more cheese. This week we are looking at a cheese factory in Toronto and what it can teach us about process control systems. Well explore feedforward and feedback systems and see how integrating them both with the final check of cascade control creates a system made to handle uncertainty the world throws its way. Crash Course Engineering is produced in association with PBS Digital Studios: https://www.youtube.com/playlistlist=PL1mtdjDVOoOqJzeaJAV15Tq0tZ1vKj7ZV Global Weirding with"
YouTube Link 2018-11-15T21:13Z 16.9M followers, 92.9K engagements

"The Economics of Happiness: Crash Course Economics #35 They say money can't buy happiness but who are they Can money buy happiness The answer is: sort of. While money may not be able to buy true happiness lack of money can cause very real misery. Today we look at the economics of happiness and talk about how much money it takes to be happy. And where you should live to maximize your income-to-happiness ratio. Crash Course is on Patreon You can support us directly by signing up at http://www.patreon.com/crashcourse Thanks to the following Patrons for their generous monthly contributions that"
YouTube Link 2016-06-09T13:40Z 16.9M followers, 505.2K engagements

"Sociology Research Methods: Crash Course Sociology #4 Today were talking about how we actually DO sociology. Nicole explains the research method: form a question and a hypothesis collect data and analyze that data to contribute to our theories about society. Crash Course is made with Adobe Creative Cloud. Get a free trial here: https://www.adobe.com/creativecloud.html *** The Dress via Wired: https://www.wired.com/2015/02/science-one-agrees-color-dress/ Original: http://swiked.tumblr.com/post/112073818575/guys-please-help-me-is-this-dress-white-and *** Crash Course is on Patreon You can"
YouTube Link 2017-04-03T20:34Z 16.9M followers, 1.5M engagements

"Monopolies and Anti-Competitive Markets: Crash Course Economics #25 What is a monopoly It turns out it's more than just a board game. It's a terrible terrible economic practice in which giant corporations dominate markets and hurt consumers. Except when it isn't. In some industries monopolies are the most efficient way to do business. Utilities like electricity water and broadband internet access are probably less efficiently delivered in competitive markets. Come along and let us monopolize your attention for a few minutes. You might learn something. And you might land on Free Parking. Crash"
YouTube Link 2016-02-27T01:56Z 16.9M followers, 1.4M engagements

"Thespis Athens and The Origins of Greek Drama: Crash Course Theater #2 This week on Crash Course Theater Mike is acting like theater started in Greece. Well for the western theater this is true. The earliest recorded drama in the west arose in Athen and these early plays grew out or religious ritual. Namely they evolved from the worship of Dionysus god of wine fertility and RITUAL MADNESS. That's right. I said RITUAL MADNESS Crash Course is on Patreon You can support us directly by signing up at http://www.patreon.com/crashcourse Thanks to the following Patrons for their generous monthly"
YouTube Link 2018-02-16T22:52Z 16.9M followers, 997.7K engagements

"Social Development: Crash Course Sociology #13 What makes you you How did you get to be that way Today were talking about social development starting with the role of nature and nurture in influencing a persons development. Well discuss socialization the importance of care & human interaction as well as theories of development from a range of theorists. Crash Course is made with Adobe Creative Cloud. Get a free trial here: https://www.adobe.com/creativecloud.html *** Crash Course is on Patreon You can support us directly by signing up at http://www.patreon.com/crashcourse Thanks to the"
YouTube Link 2017-06-12T19:00Z 16.9M followers, 783.9K engagements

"Who Started World War I: Crash Course World History [---] In which John Green teaches you WHY World War I started. Or tries to anyway. With this kind of thing it's kind of hard to assign blame to any one of the nations involved. Did the fault lie with Austria-Hungary Germany Russia Julius Caesar One thing we can say for sure is that you can't blame the United States of America for this one. Woohoo Well you can hardly blame the US. Crash Course is on Patreon You can support us directly by signing up at http://www.patreon.com/crashcourse Want to find Crash Course elsewhere on the internet"
YouTube Link 2014-09-20T13:18Z 16.9M followers, 4.6M engagements

"Endocrine System Part [--] - Glands & Hormones: Crash Course Anatomy & Physiology #23 Hank begins teaching you about your endocrine system by explaining how it uses glands to produce hormones. These hormones are either amino-acid based and water soluble or steroidal and lipid-soluble and may target many types of cells or just turn on specific ones. He will also touch on hormone cascades and how the HPA axis affects your stress response. Pssst. we made flashcards to help you review the content in this episode Find them on the free Crash Course App Download it here for Apple Devices:"
YouTube Link 2015-06-22T21:00Z 16.9M followers, 7.3M engagements

"Russia the Kievan Rus and the Mongols: Crash Course World History #20 If you're interested in learning more about the Russian government's [----] invasion of Ukraine check out this vlogbrothers video published on 3/15/2022: https://www.youtube.com/watchv=mMZYKxgc9TE In which John Green teaches you how Russia evolved from a loose amalgamation of medieval principalities known as the Kievan Rus into the thriving democracy we know today. As you can imagine there were a few bumps along the road. It turns out that our old friends the Mongols had quite a lot to do with unifying Russia. In yet another"
YouTube Link 2012-06-07T20:59Z 16.9M followers, 5.5M engagements

"Labor Markets and Minimum Wage: Crash Course Economics #28 How much should you get paid for your job Well that depends on a lot of factors. Your skill set the demand for the skills you have and what other people are getting paid around you all factor in. In a lot of ways labor markets work on supply and demand just like many of the markets we talk about in Crash Course Econ. But again there aren't a lot of pure true markets in the world. There are all kinds of oddities and regulations that change the way labor markets work. One common (and kind of controversial one) is the minimum wage. The"
YouTube Link 2016-03-27T20:16Z 16.9M followers, 1.3M engagements

"Central Nervous System: Crash Course Anatomy & Physiology #11 Today Hank talks about your central nervous system. In this episode we'll explore how your brain develops and how important location is for each of your brain's many functions. Pssst. we made flashcards to help you review the content in this episode Find them on the free Crash Course App Download it here for Apple Devices: https://apple.co/3d4eyZo Download it here for Android Devices: https://bit.ly/2SrDulJ Chapters: Introduction: Broca's Aphasia 00:00 Central Nervous System Structure & Function 1:48 Brain Development: Neural Tube"
YouTube Link 2015-03-23T21:00Z 16.9M followers, 5.3M engagements

"Intro to Psychology: Crash Course Psychology #1 What does Psychology mean Where does it come from Hank gives you a 10-minute intro to one of the more tricky sciences and talks about some of the big names in the development of the field. Welcome to Crash Course Psychology Want more videos about psychology Check out our sister channel SciShow Psych at https://www.youtube.com/scishowpsych -- Chapters: Introduction: What is Psychology 00:00 Early Thinkers in Psychology 0:46 Big Questions in Psychology 1:31 Sigmund Freud 2:21 Disciplines of Psychology 3:02 Structuralism 3:29 Functionalism 4:28"
YouTube Link 2014-02-04T00:08Z 16.9M followers, 17.2M engagements

"Mineral Extraction: Crash Course Geography #44 Today we're going to take a look at mineral extraction -- or the removal of rocks and minerals from the Earths' crust -- and examine how this human activity impacts all aspects of Geography. We'll focus on the Democratic Republic of the Congo and take a look at how the mining of minerals such as cobalt has significantly impacted life in this region. Sources https://docs.google.com/document/d/1YdZ--u297RHCKLEzFI7YxjuxVtweDttWT9Au1MQlV94/editusp=sharing Watch our videos and review your learning with the Crash Course App Download here for Apple"
YouTube Link 2022-02-28T18:26Z 16.9M followers, 229.9K engagements

"Utilitarianism: Crash Course Philosophy #36 Our next stop in our tour of the ethical lay of the land is utilitarianism. With a little help from Batman Hank explains the principle of utility and the difference between act and rule utilitarianism. -- Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios -- Want to find Crash Course elsewhere on the internet Facebook - http://www.facebook.com/YouTubeCrashC. Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Patreon: http://www.patreon.com/crashcourse"
YouTube Link 2016-11-21T23:02Z 16.9M followers, 5.4M engagements

"What Do Native Cultures Have in Common: Ep [--] of Crash Course Native American History Just like everyone all Native Americans are unique. But what do they have in common In this episode of Crash Course Native American History well explore similarities in Native worldviews from harvest traditions to humor. Introduction: Native Toys 00:00 Native Humor 1:05 Representing Native Humor 3:52 Reciprocity 5:37 Generosity 8:49 Review & Credits 10:06 Sources: https://docs.google.com/document/d/1g1BpQk_2qXtFeQBffoAT-rrogcKRaA2eNjeRCpmCrJ8/editusp=sharing Want to know more about how this series was made"
YouTube Link 2025-06-17T16:00Z 16.9M followers, 102.2K engagements

"Animals & Shapeshifters: Crash Course Latin American Literature #10 Fish and insects and dogsoh my In this episode of Crash Course Latin American Literature well explore how all things fuzzy buzzy and ferocious can help us understand our own human nature. Introduction: Latin American Animals 00:00 Antnio Vieira 0:46 Alejo Carpentier 3:34 Pilar Quintana 6:27 Review & Credits 8:54 Sources: https://docs.google.com/document/d/1eE7g4-k6PD7C6wNBzeJIO8GCDHpoJl8ldDjKyq_2yYg/edittab=t.0 To learn more check out these videos: https://www.youtube.com/watchv=oyv-eJRRozs"
YouTube Link 2026-01-29T17:00Z 16.9M followers, 20.2K engagements

"The Impacts of Social Class: Crash Course Sociology #25 This week we are building on last weeks outline of American stratification to explore how class differences affect peoples daily lives. Well explore variations in everything from values & beliefs to health outcomes and look at how these things can perpetuate inequality across generations. Crash Course is made with Adobe Creative Cloud. Get a free trial here: https://www.adobe.com/creativecloud.html *** References: Sociology by John J. Macionis 15th edition (2014) The Health Inequality Project: https://healthinequality.org/ Institute for"
YouTube Link 2017-09-18T19:58Z 16.9M followers, 609.8K engagements

"Separation of Powers and Checks and Balances: Crash Course Government and Politics #3 In which Craig Benzine teaches you about the US Governments Separation of powers and the system of checks and balances. In theory the Legislative Branch the Executive Branch and the Judicial Brach are designed to keep each other in check and to keep any branch from becoming too powerful. In reality the system was designed to keep the President from becoming some kind of autocrat. For the most part it has worked. Craig will call in the clones to explain which powers belong to which branches and to reveal some"
YouTube Link 2015-02-07T00:05Z 16.9M followers, 4.1M engagements

"Introduction to Astronomy: Crash Course Astronomy #1 Welcome to the first episode of Crash Course Astronomy. Your host for this intergalactic adventure is the Bad Astronomer himself Phil Plait. We begin with answering a question: "What is astronomy" Check out the Crash Course Astronomy solar system poster here: http://store.dftba.com/products/crashcourse-astronomy-poster -- Chapters: Introduction 00:00 What is Astronomy 3:00 Who Studies Astronomy 3:50 Origins of Astronomy 5:27 Astrology vs Astronomy 6:19 Geocentrism 7:51 Revolutions in Astronomy 8:58 Astronomy Today 10:26 Review 11:29 -- PBS"
YouTube Link 2015-01-15T22:00Z 16.9M followers, 5.6M engagements

"Horror in Latin American literature: Crash Course Latin American Literature #6 Are you afraid of ghosts In this episode of Crash Course Latin American Literature we pull back the curtain on the origins of Latin American horror winding our way through (literal) ghost towns haunted inns and the eerie landscape of the Andes. Prepare to be spooked. Introduction: A Ghost Story 00:00 Ghosts in Latin America 0:37 Pedro Pramo 1:22 The Female Gothic 4:54 Andean Gothic 6:51 The New Boom 8:25 Review and Credits 9:16 Sources:"
YouTube Link 2025-12-11T17:00Z 16.9M followers, 24.1K engagements

"Political Campaigns: Crash Course Government and Politics #39 So political campaigns are a pretty big deal in the United States. For instance the [----] presidential election clocked in at the most expensive ever - at around $6 billion dollars Needless to say money plays a very big role in American elections. So today Craig is going to take a look at why we have campaigns in the first place why the campaign seasons run for so long and of course why campaigns cost so much. Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios Support is provided by Voqal:"
YouTube Link 2015-11-21T23:37Z 16.9M followers, 952.1K engagements

"Contractarianism: Crash Course Philosophy #37 Today we explore the penultimate ethical theory in this unit: contractarianism. Hank explains Hobbes state of nature implicit and explicit contracts as well as the Prisoners Dilemma and the benefits and costs of violating contracts. -- Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios -- Want to find Crash Course elsewhere on the internet Facebook - http://www.facebook.com/YouTubeCrashC. Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Patreon:"
YouTube Link 2016-11-28T23:17Z 16.9M followers, 1.9M engagements

"The Hydrologic and Carbon Cycles: Always Recycle - Crash Course Ecology #8 Hank introduces us to biogeochemical cycles by describing his two favorites: carbon and water. The hydrologic cycle describes how water moves on above and below the surface of the Earth driven by energy supplied by the sun and wind. The carbon cycle does the same. for carbon Table of Contents 1) Hydrologic Cycle - 1:15 A) Clouds - 2:13 B) Runoff - 3:06 C) Oceans - 3:41 D) Evapotranspiration - 4:25 2) Carbon Cycle - 5:12 A) Plants - 5:48 B) Fossil Fuels - 6:40 C) Oceans - 7:12 D) Global Warming - 7:35 References"
YouTube Link 2012-12-24T22:04Z 16.9M followers, 1.6M engagements

"Nature in Latin American Literature: Crash Course Latin American Literature #3 Who is Mother Nature REALLY In this episode of Crash Course Latin American Literature well uncover how representations of Latin American landscapes have often reflected shifting social and political concerns. Introduction: Mama Nature 00:00 The Latin American Landscape 0:43 The Landscape of Independence 2:11 "La Vorgine" 3:38 Eco-horror 5:18 Ecopoetry 7:22 Review & Credits 8:37 Sources: https://docs.google.com/document/d/1eE7g4-k6PD7C6wNBzeJIO8GCDHpoJl8ldDjKyq_2yYg/edittab=t.0 To learn more check out these videos:"
YouTube Link 2025-11-13T17:00Z 16.9M followers, 26.7K engagements

"Media Institution: Crash Course Government and Politics #44 So today we're going to look at the rather thorny issue of the media and its role in politics. Wether you're talking about older forms of media like newspapers and radio or newer forms like television and the Internet all media serves the same purpose - to provide information to the public. So we're going to discuss their strengths and weaknesses and examine how both content creators and consumers play a role in the information that is told. It could be argued that because the media only relays information it isn't actually important"
YouTube Link 2016-01-16T15:00Z 16.9M followers, 761.2K engagements

"Prejudice and Discrimination: Crash Course Psychology #39 In this episode of Crash Course Psychology Hank tackles some difficult topics dealing with prejudice stereotyping and discrimination. There's a lot here so let's get started. Here's a link to the Implicit Association Test we mentioned in this episode: https://implicit.harvard.edu/implicit/ Want more videos about psychology Check out our sister channel SciShow Psych at https://www.youtube.com/scishowpsych -- Chapters: Introduction: Amadou Diallo 00:00 Implicit Bias 1:11 Prejudice Stereotyping & Discrimination 2:03 Dual-Process Theory"
YouTube Link 2014-11-17T23:30Z 16.9M followers, 2.7M engagements

"Solutions: Crash Course Chemistry #27 This week Hank elaborates on why Fugu can kill you by illustrating the ideas of solutions and discussing molarity molality and mass percent. Also why polar solvents dissolve polar solutes and nonpolar solvents dissolve nonpolar solutes. All that plus Henry's Law and why Coke = Burps. Pssst. we made flashcards to help you review the content in this episode Find them on the free Crash Course App Download it here for Apple Devices: https://apple.co/3d4eyZo Download it here for Android Devices: https://bit.ly/2SrDulJ -- TABLE OF CONTENTS Molarity Molality and"
YouTube Link 2013-08-19T21:16Z 16.9M followers, 1.5M engagements

"Slavery - Crash Course US History #13 In which John Green teaches you about America's "peculiar institution" slavery. I wouldn't really call it peculiar. I'd lean more toward a horrifying and depressing institution but nobody asked me. John will talk about what life was like for an enslaved person in the 19th century United States and how enslaved people resisted oppression to the degree that was possible. We'll hear about cotton plantations the violent punishment of enslaved people the day-to-day lives of enslaved people and slave rebellions. Nat Turner Harriet Tubman and Whipped Peter all"
YouTube Link 2013-05-02T23:34Z 16.9M followers, 5.5M engagements

"Tissues Part [--] - Connective Tissues: Crash Course Anatomy & Physiology #4 On today's episode of Crash Course Anatomy & Physiology Hank continues our exploration of tissues with an introduction to your connective tissues. Pssst. we made flashcards to help you review the content in this episode Find them on the free Crash Course App Download it here for Apple Devices: https://apple.co/3d4eyZo Download it here for Android Devices: https://bit.ly/2SrDulJ Chapters: Introduction 00:00 What is Connective Tissue 2:14 Four Classes of Connective Tissue 2:34 What Makes Connective Tissues Different From"
YouTube Link 2015-01-26T22:30Z 16.9M followers, 3.7M engagements

"A History of Indigenous Women with Lily Gladstone: Ep [--] of Crash Course Native American History Women have always played important roles in Native societies. In this episode of Crash Course Native American History Lily Gladstone helps us unpack the ways Native women have shown up as war heroes and peacemakers and as matriarchs and activists. Introduction: Divine Women 00:00 Matriarchal Societies 0:37 Native Women at War 2:01 Jikonsaseh 3:05 Ideas about Gender 4:48 Effects of Colonization 5:53 Violence Against Women Today 8:08 Native Activism 9:24 Review & Credits 12:42 Special thanks to "100"
YouTube Link 2025-10-14T16:00Z 16.9M followers, 117.3K engagements

"Data Structures: Crash Course Computer Science #14 Today were going to talk about on how we organize the data we use on our devices. You might remember last episode we walked through some sorting algorithms but skipped over how the information actually got there in the first place And it is this ability to store and access information in a structured and meaningful way that is crucial to programming. From strings pointers and nodes to heaps trees and stacks get ready for an ARRAY of new terminology and concepts. Ps. Have you had the chance to play the Grace Hopper game we made in episode 12."
YouTube Link 2017-05-31T22:00Z 16.9M followers, 1.1M engagements

"The Congress of Vienna: Crash Course European History #23 The end of the Napoleonic Wars left the great powers of Europe shaken. Judging from the destruction that had been wrought across the continent it seemed to the powers that be that the Enlightenment had liberated the people and led to disaster. So everybody got together in Vienna to have a Congress and to try to put Europe "right" again. By "right" I mean they wanted to go back to the old days of kings queens and nobles running the show. But this new yearning for the past pervaded the continent. Roomanticism arose at the same time"
YouTube Link 2019-10-30T01:24Z 16.9M followers, 1.1M engagements

"The Nucleus: Crash Course Chemistry #1 Hank does his best to convince us that chemistry is not torture but is instead the amazing and beautiful science of stuff. Chemistry can tell us how three tiny particles - the proton neutron and electron - come together in trillions of combinations to form . everything. In this inaugural episode of Crash Course Chemistry we start out with one of the biggest ideas in chemistry ever - stuff is made from atoms. More specifically we learn about the properties of the nucleus and why they are important to defining what an atom actually is. This video is"
YouTube Link 2013-02-12T01:16Z 16.9M followers, 8M engagements

"Women's Suffrage: Crash Course US History #31 In which John Green teaches you about American women in the Progressive Era and well the progress they made. So the big deal is of course the right to vote women gained when the 19th amendment was passed and ratified. But women made a lot of other gains in the [--] years between [----] and [----]. More women joined the workforce they acquired lots of other legal rights related to property and they also became key consumers in the industrial economy. Women also continued to play a vital role in reform movements. Sadly they got Prohibition enacted in the"
YouTube Link 2013-09-27T00:06Z 16.9M followers, 3.1M engagements

"Remembering and Forgetting: Crash Course Psychology #14 In this REALLY IMPORTANT EPISODE of Crash Course Psychology Hank talks about how we remember and forget things why our memories are fallible and the dangers that can pose. Want more videos about psychology Check out our sister channel SciShow Psych at https://www.youtube.com/scishowpsych -- Chapters: Introduction: The Banana Thief 00:00 How Memories are Stored 1:12 Memory Retrieval Cues 1:58 Priming & Context-Dependent Memory 2:45 State-Dependent & Mood-Congruent Memory 3:31 Serial Position Primacy & Recency Effects 3:52 How Information"
YouTube Link 2014-05-12T20:33Z 16.9M followers, 2.9M engagements

"Jupiter's Moons: Crash Course Astronomy #17 Before moving on from Jupiter to Saturn were going to linger for a moment on Jupiters moons. There are [--] known moons [--] of which are the huge ones that we want to explore in greater detail. Ganymede is the largest - larger in fact than any other moon in the solar system and the planet Mercury Callisto orbiting the farthest out is smaller but quite similar to Ganymede in many ways. Io meanwhile is most noteworthy for its tremendous volcanic activity. Theres also water on Ganymede and Europa This episode was brought to you by Squarespace"
YouTube Link 2015-05-14T23:20Z 16.9M followers, 1.8M engagements

"Biology Before Darwin: Crash Course History of Science #19 Youve probably heard of Charles Darwin but before we get to him you really need to understand how different people throughout the seventeenth and eighteenth centuries tried to answer the same question: what is life *** Crash Course is on Patreon You can support us directly by signing up at http://www.patreon.com/crashcourse Thanks to the following Patrons for their generous monthly contributions that help keep Crash Course free for everyone forever: Mark Brouwer Erika & Alexa Saur Glenn Elliott Justin Zingsheim Jessica Wode Eric"
YouTube Link 2018-08-27T22:48Z 16.9M followers, 469.4K engagements

"The Roads to World War I: Crash Course European History #32 Much has been written about what exactly caused World War I. As befits a true global war the reality is that there isn't a single cause. There aren't even three causes. There are a vast array of causes. Today we'll get into just a few of those causes including the complex system of alliances in Europe the myriad military conflicts that played out in the years and decades leading up to the war and the event that many point to as the beginning: the assassination of Archduke Franz Ferdinand. Sources -Hunt Lynn. Making of the West:"
YouTube Link 2020-01-16T13:56Z 16.9M followers, 1.3M engagements

"Focus & Concentration: Crash Course Study Skills #5 Sign up for your FREE trial of The Great Courses Plus here: http://ow.ly/PhPe30egcrb Have you ever noticed how easy it is to get distracted while studying even when you know you really dont have time for Facebook Snapchat Cookie Clicker or whatever else is calling you This week were going to help you get a better handle on your focus and concentration and how to improve those skills. Crash Course is made with Adobe Creative Cloud. Get a free trial here: https://www.adobe.com/creativecloud/catalog/desktop.html Resources: Bottom-up and"
YouTube Link 2017-09-05T21:00Z 16.9M followers, 788.3K engagements

"How to Argue - Philosophical Reasoning: Crash Course Philosophy #2 Before we dive into the big questions of philosophy you need to know how to argue properly. Well start with an overview of philosophical reasoning and breakdown of how deductive arguments work (and sometimes dont work). -- Images and video via VideoBlocks or Wikimedia Commons licensed under Creative Commons by 4.0: https://creativecommons.org/licenses/. -- Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios Crash Course Philosophy is sponsored by Squarespace."
YouTube Link 2016-02-16T17:15Z 16.9M followers, 5.4M engagements

"World War II Part 1: Crash Course US History #35 In which John Green teaches you about World War II a subject so big it takes up two episodes. This week John will teach you how the United States got into the war and just how involved America was before Congress actually declared war. John will actually talk a little about the military tactics involved and he'll get into some of the weaponry involved specifically the huge amount of aerial bombing that characterized the war and the atomic bombs that ended the war in the Pacific. Hey teachers and students - Check out CommonLit's free collection"
YouTube Link 2013-10-25T18:52Z 16.9M followers, 5M engagements

"Economic Depression and Dictators: Crash Course European History #37 We're still leading up to World War II but first we gotta talk about the rise of the dictators. Today we talk about the rise of militaristic dictatorships in Germany the Soviet Union Japan and Spain and the economic depression that set the stage for their rise. Sources -Hunt Lynn et al. Making of the West: Peoples and Cultures. 6th ed. Boston: Bedford St. Martins [----]. -Kershaw Ian. Hitler A Biography. New York: W. W. Norton [----]. -Kotkin Stephen. Stalin: Waiting for Hitler 1929-1941. New York: Penguin [----]. -Slezkine Yuri."
YouTube Link 2020-03-05T21:37Z 16.9M followers, 1.8M engagements

"Adolescence: Crash Course Psychology #20 In this episode of Crash Course Psychology Hank has a look at that oh-so-troublesome time in everyone's life: Adolescence He talks about identity individuality and The Breakfast Club. Want more videos about psychology Check out our sister channel SciShow Psych at https://www.youtube.com/scishowpsych -- Chapters: Introduction: The Breakfast Club 00:00 Erikson's [--] Stages of Progressive Psychosocial Development 2:05 Adolescence: Identity vs. Role Confusion 2:51 Young Adulthood: Intimacy vs. Isolation 3:39 Middle Adulthood: Generativity vs. Stagnation 4:35"
YouTube Link 2014-06-23T16:00Z 16.9M followers, 3.1M engagements

"The Filmmaker's Army: Crash Course Film Production with Lily Gladstone #3 Who does what on a film set And how many of them are there What is HMU What is a Scripty In this episode of Crash Course Film Production Lily Gladstone gives us A BIG OVERVIEW on the Production Team. Who they are who they report to and why they're important. *** Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios *** Want to find Crash Course elsewhere on the internet Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr -"
YouTube Link 2017-09-07T21:33Z 16.9M followers, 352.7K engagements

"What Makes Someone Native American: Ep [--] of Crash Course Native American History What makes a Native American Is it the way a person looks their family history or something else In this episode of Crash Course Native American history we dive into the ways people define and reclaim tribal identity from blood quantums and federal recognition to language and more. Introduction: "Looking" Native 00:00 The History of Native Identity 0:45 Language & Identity 3:31 The Dawes Rolls 6:20 Blood Quantum 7:17 Federal Recognition 9:43 Review & Credits 10:52 Sources:"
YouTube Link 2025-06-03T16:00Z 16.9M followers, 123.5K engagements

"The Chemical Mind: Crash Course Psychology #3 BAHHHHHH Did I scare you What exactly happens when we get scared How does our brain make our body react Just what are Neurotransmitters In this episode of Crash Course Psychology Hank takes us to the simplest part of the complex system of our brains and nervous systems: the neuron. -- Want more videos about psychology Check out our sister channel SciShow Psych at https://www.youtube.com/scishowpsych -- Chapters: Introduction: Brain Chemicals 00:00 Neurons 1:31 Parts of a Neuron 2:07 Synapses 3:08 Neurotransmitters 3:58 Excitatory Neurotransmitters"
YouTube Link 2014-02-17T23:59Z 16.9M followers, 6.4M engagements

"Symbolic AI: Crash Course AI #10 Today we're going to talk about Symbolic AI - also known as "good old-fashioned AI". Symbolic AI is really different from the modern neural networks we've discussed so far instead it represents problems using symbols and then uses logic to search for solutions. And this type of AI is used broadly in video games and in expert systems like those that manage inventory at grocery stores and set rates at insurance companies. Today we'll show you how we represent symbols and their relations teach you how to build a knowledge base and then introduce some simple"
YouTube Link 2019-10-18T20:15Z 16.9M followers, 145.2K engagements

"The Heart Part [--] - Under Pressure: Crash Course Anatomy & Physiology #25 Your heart gets a lot of attention from poets songwriters and storytellers but today Hank's gonna tell you how it really works. The hearts ventricles atria and valves create a pump that maintains both high and low pressure to circulate blood from the heart to the body through your arteries and bring it back to the heart through your veins. You'll also learn what your blood pressure measurements mean when we talk about systolic and diastolic blood pressure. Pssst. we made flashcards to help you review the content in this"
YouTube Link 2015-07-06T23:00Z 16.9M followers, 7.7M engagements

"The Physics of Music: Crash Course Physics #19 Music plays a big part in many of our lives. Whether you just like to listen or you enjoy playing an instrument music is powerful. So what is music How does it work What are the physics of music In this episode of Crash Course Physics Shini talks to us about how music functions in terms of waves and how these waves interact with our ears. -- Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios -- Want to find Crash Course elsewhere on the internet Facebook - http://www.facebook.com/YouTubeCrashC. Twitter -"
YouTube Link 2016-08-11T22:27Z 16.9M followers, 852.9K engagements

"Collisions: Crash Course Physics #10 COLLISIONS A big part of physics is understanding collisions and how they're not all the same. Mass momentum and many other things dictate how collisions can be unique. In this episode of Crash Course Physics Shini sits down to lead us through an understanding of collisions. Plus she brings along our old friend Sir Isaac Newton. -- Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios -- Want to find Crash Course elsewhere on the internet Facebook - http://www.facebook.com/YouTubeCrashC. Twitter -"
YouTube Link 2016-06-02T21:44Z 16.9M followers, 1.5M engagements

"The Penis Explained: Sex Ed #3 Are penises as big of a deal as we think they are In this episode of Crash Course Sex Ed we break down the history myths and assumptions weve made about penises from the right size to circumcision and from erections to blue balls. Introduction: Penises as Symbols 00:00 The Cultural History of Penises 0:34 The Anatomy of the Penis 2:41 Erections Fractures & Blue Balls 3:47 What's Normal 6:03 Circumcision 7:59 Review & Credits 9:21 Sources: https://docs.google.com/document/d/1d7cG1ZMhBTROD2ZiMGiDwFwklPJAFgtip1RPkYVNvkg/editusp=sharing For more information on the"
YouTube Link 2025-03-27T16:00Z 16.9M followers, 341.5K engagements

"Monkeys and Morality: Crash Course Psychology #19 In this episode of Crash Course Psychology Hank takes a look at a few experiments that helped us understand how we develop as human beings. Things like attachment separation anxiety stranger anxiety and morality are all discussed. also a seriously unpleasant study with monkeys and fake mothers. Want more videos about psychology Check out our sister channel SciShow Psych at https://www.youtube.com/scishowpsych -- Chapters: Introduction: Attachment 00:00 Harlow's Monkey Mother Experiment 0:47 Touch 2:16 Familiarity 3:01 Attachment Styles: Secure"
YouTube Link 2014-06-17T00:51Z 16.9M followers, 2.1M engagements

"Freedom of Speech: Crash Course Government and Politics #25 Today FINALLY Craig is going to talk about Free Speech Now free speech is so important because it not only allows you to critique the government but it also protects you from the government. But it's essential to remember that not ALL speech is protected equally under the First Amendment and just because you have a right to free speech doesn't mean your employer for instance can't fire you for something you say (unless your work for the government and then things get a bit more complicated). So we'll take a look at a couple"
YouTube Link 2015-07-31T23:07Z 16.9M followers, 1.4M engagements

"OCD and Anxiety Disorders: Crash Course Psychology #29 In this episode of Crash Course Psychology Hank talks about OCD and anxiety disorders in the hope we'll understand what people with actual OCD have to deal with as well as how torturous anxiety disorders and panic attacks can actually be. Want more videos about psychology Check out our sister channel SciShow Psych at https://www.youtube.com/scishowpsych -- Chapters: Introduction: Social Stigma of Psychological Disorders 00:00 What Defines an Anxiety Disorder 1:55 Obsessive-Compulsive Disorder (OCD) 2:35 Generalized Anxiety Disorder (GAD)"
YouTube Link 2014-09-01T22:59Z 16.9M followers, 6.8M engagements

"Fluids at Rest: Crash Course Physics #14 In this episode of Crash Course Physics Shini is very excited to start talking about fluids. You see she's a fluid dynamicist and mechanical engineer so fluids are really important to her. Actually they're really important to anyone studying physics. So let's start down this path of understanding not only how fluids work but what they are -- Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios This episode is sponsored by Audible. Try Audible: http://audible.com/crashcourse -- Want to find Crash Course elsewhere on"
YouTube Link 2016-07-08T17:13Z 16.9M followers, 1.1M engagements

"How Does Science Really Work The Myth of the Great Experiment: Crash Course Scientific Thinking #3 Sometimes experiments radically change our understanding of the world. But theres much more to them than singular scientists. In this episode of Crash Course Scientific Thinking well learn why Louis Pasteur wasnt a lone genius and why its very difficult to design a study that gets us closer to the truth. Introduction: A Lone Genius 00:00 The Scientific Community 0:32 Louis Pasteur & Germ Theory 1:20 Pasteur's Next Experiments 3:55 Observational Science 6:08 Ethical Experimentation 7:57 Review &"
YouTube Link 2026-02-10T17:00Z 16.9M followers, 44.8K engagements

"What is Engineering: Crash Course Engineering #1 In our first episode of Crash Course Engineering Shini explains what engineering is and gives a brief overview of its four main branches (civil mechanical electrical and chemical) as well as a look at some of the other fields of engineering. Crash Course Engineering is produced in association with PBS Digital Studios: https://www.youtube.com/playlistlist=PL1mtdjDVOoOqJzeaJAV15Tq0tZ1vKj7ZV *** RESOURCES: https://www.britannica.com/technology/engineering http://www.dictionary.com/browse/engineer http://enacademic.com/dic.nsf/enwiki/23915"
YouTube Link 2018-05-17T23:16Z 16.9M followers, 1.8M engagements

"Eukaryopolis - The City of Animal Cells: Crash Course Biology #4 Hank tells us about the city of Eukaryopolis - the animal cell that is responsible for all the cool things that happen in our bodies. Table of Contents time codes 1) Robert Hooke 1:59 2) Cilia/Flagella 2:52 3) Cell Membrane 3:32 4) Cytoplasm/Cytoskeleton/Centrosomes 3:58 5) Endoplasmic Reticulum 4:41 6) Ribosomes 5:45 7) Golgi Apparatus 6:00 8) Lysosomes 6:47 9) Nucleus 7:06 10) Mitochondria 9:14 Crash Course is on Patreon You can support us directly by signing up at http://www.patreon.com/crashcourse Want to find Crash Course"
YouTube Link 2012-02-20T21:17Z 16.9M followers, 6.1M engagements

"Was Gatsby Great The Great Gatsby Part 2: Crash Course English Literature #5 SPOILER ALERT: This video assumes you've read the book. In which John Green continues to explore F. Scott Fitzgerald's novel The Great Gatsby. In this installment John looks into the titular Gatsby's purported Greatness. Gatsby's single-minded pursuit of Daisy his checkered past and his checkered present all play a role in determining whether he was in fact great. Here's a hint: you don't have to be good to be great. It turns out greatness doesn't have much to do with whether you're a good person. Along the way John"
YouTube Link 2012-12-20T22:40Z 16.9M followers, 2.1M engagements

"Introduction to Cognitive Bias: Crash Course Scientific Thinking #1 Ever fallen for fake news on social media because it felt real Or found yourself afraid to go in the ocean after watching too many videos about sharks In this episode of Crash Course Scientific Thinking we explore how cognitive bias shapes the way we think about the world and how scientific thinking can help us overcome it. Introduction: Earth as the Center 00:00 Recognizing Patterns 0:44 Common Cognitive Biases 2:44 Overcoming Bias Through Science 6:02 How to Combat Cognitive Bias 8:53 Review & Credits 10:18 Sources:"
YouTube Link 2026-01-20T17:01Z 16.9M followers, 455.1K engagements

"The Atlantic Slave Trade: Crash Course World History #24 In which John Green teaches you about one of the least funny subjects in history: slavery. John investigates when and where slavery originated how it changed over the centuries and how Europeans and colonists in the Americas arrived at the idea that people could own other people based on skin color. Slavery has existed as long as humans have had civilization but the Atlantic Slave Trade was the height or depth of dehumanizing brutal chattel slavery. American slavery ended less than [---] years ago. In some parts of the world it is still"
YouTube Link 2012-07-05T22:54Z 16.9M followers, 5.8M engagements

"Congressional Committees: Crash Course Government and Politics #7 This week Craig Benzine clears up the role of committees in Congress. Well talk about standing committees joint committees conference committees and caucuses (and not the candidate-choosing kinds) as well as the staff agencies that help advise these committees and congresspeople. As most bills never even make it to the house and senate floors for a vote the role of committees and their respective chairpersons as gatekeepers is pretty important. Theres a lot to demystify here as the legislative process can seem pretty arcane at"
YouTube Link 2015-03-07T00:38Z 16.9M followers, 1.7M engagements

"Equilibrium: Crash Course Chemistry #28 In this episode of Crash Course Chemistry Hank goes over the ideas of keeping your life balance. well your chemical life. Equilibrium is all about balance and today Hank discusses Chemical Equilibrium Concentration Temperature and Pressure. Also he'll chat about Le Chatalier's Principle and Fritz Haber. Pssst. we made flashcards to help you review the content in this episode Find them on the free Crash Course App Download it here for Apple Devices: https://apple.co/3d4eyZo Download it here for Android Devices: https://bit.ly/2SrDulJ -- TABLE OF CONTENTS"
YouTube Link 2013-08-27T00:34Z 16.9M followers, 2.7M engagements

"DNA Hot Pockets & The Longest Word Ever: Crash Course Biology #11 Hank imagines himself breaking into the Hot Pockets factory to steal their secret recipes and instruction manuals in order to help us understand how the processes known as DNA transcription and translation allow our cells to build proteins. Table of Contents: 1) Transcription 2:12 A) Transcription Unit 3:00 B) Promoter 3:10 C) TATA Box 3:32 D) RNA Polymerase 4:12 E) mRNA 4:15 F) Termination signal 5:21 G) 5' Cap & Poly-A Tail 5:34 2) RNA Splicing 6:08 A) SNuRPs & Spliceosome 6:26 B) Exons & Introns 6:56 3) Translation 7:28 A)"
YouTube Link 2012-04-09T21:27Z 16.9M followers, 5.9M engagements

"The Seven Years War: Crash Course World History #26 In which John teaches you about the Seven Years' War which may have lasted nine years. Or as many as [--]. It was a very confusing war. The Seven Years War was a global war fought on five continents which is kind of a lot. John focuses on the war as it happened in the Americas Asia and Africa. the "great" European powers were the primary combatants but they fought just about everywhere. Of course this being a history course the outcomes of this war still resonate in our lives today. The Seven Years' war determined the direction of the British"
YouTube Link 2012-07-19T23:10Z 16.9M followers, 4.6M engagements

"Newton's Laws: Crash Course Physics #5 I'm sure you've heard of Isaac Newton and maybe of some of his laws. Like that thing about "equal and opposite reactions" and such. But what do his laws mean And how do they help us understand the world around us In this episode of Crash Course Physics Shini talks to us about just that. *** Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios Crash Course is on Patreon You can support us directly by signing up at http://www.patreon.com/crashcourse Thanks to the following Patrons for their generous monthly contributions"
YouTube Link 2016-04-28T21:29Z 16.9M followers, 5.8M engagements

"Programming Basics: Statements & Functions: Crash Course Computer Science #12 Today Carrie Anne is going to start our overview of the fundamental building blocks of programming languages. Well start by creating small programs for our very own video game to show how statements and functions work. We arent going to code in a specific language but well show you how conditional statements like IF and ELSE statements WHILE loops and FOR loops control the flow of programs in nearly all languages and then well finish by packaging up these instructions into functions that can be called by our game to"
YouTube Link 2017-05-17T20:59Z 16.9M followers, 1M engagements

"The French Revolution: Crash Course World History #29 In which John Green examines the French Revolution and gets into how and why it differed from the American Revolution. Was it the serial authoritarian regimes The guillotine The Reign of Terror All of this and more contributed to the French Revolution not being quite as revolutionary as it could have been. France endured multiple constitutions the heads of heads of state literally rolled and then they ended up with a megalomaniacal little emperor by the name of Napoleon. But how did all of this change the world and how did it lead to other"
YouTube Link 2012-08-10T17:12Z 16.9M followers, 10.2M engagements

"Social Policy: Crash Course Government and Politics #49 Today Craig is going to talk about social policy - in the United States this means achieving one of three goals: protecting Americans from risk promoting equal opportunity or assisting the poor. Many Americans strongly believe in individualism that is self-reliance but since the Great Depression and the New Deal the governments role has increased significantly. Were going to focus on two social policies that came out of the New Deal - Social Security and what we tend to think of as welfare - and talk about why theyre still around now and"
YouTube Link 2016-02-27T18:01Z 16.9M followers, 651.1K engagements

"ANOVA: Crash Course Statistics #33 Today we're going to continue our discussion of statistical models by showing how we can find if there are differences between multiple groups using a collection of models called ANOVA. ANOVA which stands for Analysis of Variance is similar to regression (which we discussed in episode 32) but allows us to compare three or more groups for statistical significance. Crash Course is on Patreon You can support us directly by signing up at http://www.patreon.com/crashcourse Thanks to the following Patrons for their generous monthly contributions that help keep"
YouTube Link 2018-10-10T21:14Z 16.9M followers, 673.4K engagements

"History of Media Literacy Part 1: Crash Course Media Literacy #2 In order to understand the history of media literacy we have to go all the way back to straight up literacy. In the first half of our look at the history of media literacy Jay takes us all the way back to Ancient Greece and forward through the printing press newspapers and Yellow Journalism. Introduction: Who thinks about Media Literacy 0:00 The Phaedrus and Plato 1:00 The early history of literacy 1:57 The printing press 2:29 Literacy and religion (Martin Luther) 2:58 Media literacy and media technology 3:39 The newspaper 4:00"
YouTube Link 2018-03-07T00:00Z 16.9M followers, 465.7K engagements

"Engines: Crash Course Physics #24 One of the greatest inventions is the steam engine. But why What makes it so useful And how does it work In this episode of Crash Course Physics Shini talks to us about how engines work what makes them efficient and why they're pretty cool. -- Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios -- Want to find Crash Course elsewhere on the internet Facebook - http://www.facebook.com/YouTubeCrashC. Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Patreon:"
YouTube Link 2016-09-22T21:30Z 16.9M followers, 376.4K engagements

"How to Train a Brain: Crash Course Psychology #11 I'm sure you've heard of Pavlov's Bell but what was Ivan Pavlov up to exactly And how are our brains trained And what is a "Skinner Box" All those questions and more are answered in today's Crash Course Psychology in which Hank talks about some of the aspects of learning. Want more videos about psychology Check out our sister channel SciShow Psych at https://www.youtube.com/scishowpsych -- Chapters: Introduction: Ivan Pavlov 00:00 Associative Learning 1:33 Classical Conditioning 2:47 Behaviorist Theory 4:22 Watson's Experiments 4:46 Operant"
YouTube Link 2014-04-21T20:55Z 16.9M followers, 4.4M engagements

"Phonetics - Vowels: Crash Course Linguistics #9 In English we have [--] (well sometimes 6) vowel letters but way more vowel sounds. Thats where the IPA can help us In this episode of Crash Course Linguistics well learn about vowels those sounds you can sing with your mouth open and how we can represent them clearly using the IPA. Want even more linguistics Check out the Lingthusiasm podcast hosted by the writers of Crash Course Linguistics: https://lingthusiasm.com/ *** Watch our videos and review your learning with the Crash Course App Download here for Apple Devices: https://apple.co/3d4eyZo"
YouTube Link 2020-11-13T19:01Z 16.9M followers, 272.7K engagements

"The Normal Distribution: Crash Course Statistics #19 Today is the day we finally talk about the normal distribution The normal distribution is incredibly important in statistics because distributions of means are normally distributed even if populations aren't. We'll get into why this is so - due to the Central Limit Theorem - but it's useful because it allows us to make comparisons between different groups even if we don't know the underlying distribution of the population being studied. Crash Course is on Patreon You can support us directly by signing up at"
YouTube Link 2018-06-06T21:09Z 16.9M followers, 407.4K engagements

"The Dark(er) Side of Media: Crash Course Media Literacy #10 Propaganda Misinformation Disinformation Today were talking about the dark or shall we say darkER side of media. Understanding these media bogeymen is essential to being a more media literate citizen. *** Resources: The Persistent Mystery: How Many Died in [----] https://www.nytimes.com/1999/06/04/world/the-persistent-mystery-how-many-died-in-1989.html The Media Was Always Bad at Reporting Breaking News a Brief History"
YouTube Link 2018-05-01T21:41Z 16.9M followers, 320.7K engagements

"The Civil War Part I: Crash Course US History #20 In which John Green ACTUALLY teaches about the Civil War. In part one of our two-part look at the US Civil War John looks into the causes of the war and the motivations of the individuals who went to war. The overarching causes and the individual motivations were not always the same you see. John also looks into why the North won and whether that outcome was inevitable. The North's industrial and population advantages are examined as are the problems of the Confederacy including its need to build a nation at the same time it was fighting a"
YouTube Link 2013-06-28T17:46Z 16.9M followers, 6M engagements

"The Spanish Empire Silver & Runaway Inflation: Crash Course World History #25 In which John Green explores how Spain went from being a middling European power to one of the most powerful empires on Earth thanks to their plunder of the New World in the 16th and 17th centuries. Learn how Spain managed to destroy the two biggest pre-Columbian civilizations mine a mountain made of silver mishandle their economy and lose it all by the mid-1700s. Come along for the roller coaster ride with Charles I (he was also Charles V) Philip II Atahualpa Moctezuma Hernn Corts and Francisco Pizarro as Spain"
YouTube Link 2012-07-13T03:56Z 16.9M followers, 4.8M engagements

"Alkanes: Crash Course Organic Chemistry #6 Alkanes are kind of the wallflowers of organic chemistry but they still have important functions in the world around us. In this episode of Crash Course Organic Chemistry were building our knowledge of organic molecules by learning all about these so called couch potatoes from how they are separated from crude oil to how to use Newman projections to predict torsional strain and steric hinderance. Well also learn the names of some common conformers and get an introduction to cycloalkanes. Episode Sources: M. Faraday and W. Crooks The Chemical History"
YouTube Link 2020-06-24T18:00Z 16.9M followers, 358.4K engagements

"Language: Crash Course Psychology #16 You know what's amazing That we can talk to people they can make meaning out of it and then talk back to us. In this episode of Crash Course Psychology Hank talks to us and tries to make meaning out of how our brains do this thing called Language. Plus monkeys If you enjoyed this video you'll love our mini-series on Crash Course Linguistics Watch it here: https://youtube.com/playlistlist=PL8dPuuaLjXtP5mp25nStsuDzk2blncJDW Want more videos about psychology Check out our sister channel SciShow Psych at https://www.youtube.com/scishowpsych -- Chapters:"
YouTube Link 2014-05-26T16:13Z 16.9M followers, 2.5M engagements

"Mesopotamia: Crash Course World History #3 In which John presents Mesopotamia and the early civilizations that arose around the Fertile Crescent. Topics covered include the birth of territorial kingdoms empires Neo-Assyrian torture tactics sacred marriages ancient labor practices the world's first law code and the great failed romance of John's undergrad years. Chapters: Introduction: Ancient Mesopotamia 00:00 The City of Uruk 2:20 The Importance of Writing 4:03 Hammurabi 6:26 The Assyrians 8:08 An Open Letter to the Word 'Awesome' 9:55 What Happened to the Assyrians 10:40 Credits 11:23"
YouTube Link 2012-02-09T20:32Z 16.9M followers, 8.9M engagements

"What Is Statistics: Crash Course Statistics #1 Welcome to Crash Course Statistics In this series we're going to take a look at the important role statistics play in our everyday lives because statistics are everywhere Statistics help us better understand the world and make decisions from what you'll wear tomorrow to government policy. But in the wrong hands statistics can be used to misinform. So we're going to try to do two things in this series. Help show you the usefulness of statistics but also help you become a more informed consumer of statistics. From probabilities paradoxes and"
YouTube Link 2018-01-24T19:17Z 16.9M followers, 2.2M engagements

"The History of Atomic Chemistry: Crash Course Chemistry #37 How did we get here Well in terms of Atomic Chemistry Hank takes us on a tour of the folks that were part of the long chain of other folks who helped us get to these deeper understandings of the world. From Leucippus to Heisenberg to you - yes YOU - the story of Atomic Chemistry is all wibbly-wobbly. and amazing. Pssst. we made flashcards to help you review the content in this episode Find them on the free Crash Course App Download it here for Apple Devices: https://apple.co/3d4eyZo Download it here for Android Devices:"
YouTube Link 2013-11-04T22:02Z 16.9M followers, 3.1M engagements

"Arts and Letters of the Harlem Renaissance: Crash Course Black American History #26 The Harlem Renaissance was one of the richest most vibrant and most culturally generative artistic periods in American history and the work that emerged from that period continues to shape the landscape of American arts and letters today. In this episode were going to explore some of the writers artists and musicians who turned Harlem into a world-renowned hub of art and culture and delve into the factors that brought them all together in the first place. Clint's book How the Word is Passed is available now"
YouTube Link 2021-11-19T21:48Z 16.9M followers, 594.3K engagements

"Community Ecology: Interspecies Interactions: Crash Course Biology #6 Community ecology is the study of interactions between different species of living things and lets ecologists examine the effects of predator-prey relationships parasites and mutually beneficial interactions. In this episode of Crash Course Biology well examine the myriad interspecies interactions with examples see how keystone species impact their environment and explore how communities rebuild when they are disrupted through the lens of the [----] eruption of Mount St. Helens. Chapters: Community Ecology 0:00 Community"
YouTube Link 2023-08-01T16:00Z 16.9M followers, 137.3K engagements

"Machine Learning & Artificial Intelligence: Crash Course Computer Science #34 So we've talked a lot in this series about how computers fetch and display data but how do they make decisions on this data From spam filters and self-driving cars to cutting edge medical diagnosis and real-time language translation there has been an increasing need for our computers to learn from data and apply that knowledge to make predictions and decisions. This is the heart of machine learning which sits inside the more ambitious goal of artificial intelligence. We may be a long way from self-aware computers"
YouTube Link 2017-11-01T21:50Z 16.9M followers, 997.1K engagements

"Legal Basics and Business Entity Formation: Crash Course Business Entrepreneurship #5 It can be daunting to move from the abstract idea stage to the realm of bank accounts taxes and liability. Sometimes it can feel like youre making arbitrary decisions but were going to wade through the legalese together. Things are about to get legit. Click here for the chart https://www.patreon.com/posts/crash-course-29734204utm_medium=post_notification_email&utm_source=post_link&utm_campaign=patron_engagement *** Crash Course is on Patreon You can support us directly by signing up at"
YouTube Link 2019-09-11T21:30Z 16.9M followers, 451.9K engagements

"What is Philosophy: Crash Course Philosophy #1 Today Hank begins to teach you about Philosophy by discussing the historical origins of philosophy in ancient Greece and its three main divisions: metaphysics epistemology and value theory. He will also introduce logic and how youre going to use it to understand and critically evaluate a whole host of different worldviews throughout this course. And also hopefully the rest of your life. -- Images and video via VideoBlocks or Wikimedia Commons licensed under Creative Commons by 4.0: https://creativecommons.org/licenses/by/4.0/ -- Produced in"
YouTube Link 2016-02-08T23:00Z 16.9M followers, 8.3M engagements

"Immune System Part 2: Crash Course Anatomy & Physiology #46 In the penultimate episode of Crash Course Anatomy & Physiology Hank explains your adaptive immune system. The adaptive immune system's humoral response guards extracellular terrain against pathogens. Hank also explains B cells antibodies and how vaccines work. Pssst. we made flashcards to help you review the content in this episode Find them on the free Crash Course App Download it here for Apple Devices: https://apple.co/3d4eyZo Download it here for Android Devices: https://bit.ly/2SrDulJ Chapters: Introduction: Adaptive Immune"
YouTube Link 2015-12-15T01:57Z 16.9M followers, 4.2M engagements

"Determining SN1 SN2 E1 and E2 Reactions: Crash Course Organic Chemistry #23 Organic chemistry isnt that different from an adventure game with substrates as characters nucleophiles as magic potions and reaction conditions as different magical kingdoms. In this episode of Crash Course Organic Chemistry well learn the tricks to this game so that we can figure out which transformation or mechanism will occur when we combine any substrate with any nucleophile. Lets go on an adventure Music Used: Truth of the Legend by Kevin MacLeod Link:"
YouTube Link 2021-03-04T16:00Z 16.9M followers, 321K engagements

"What Can a Prophecy Tell Us About Climate Change: Ep [--] of Crash Course Native American History What is Traditional Ecological Knowledge And can it lead a path forward through climate change In the final episode of Crash Course Native of American History well explore Native peoples expertise on the places theyve lived for generationsand why it matters today. Introduction: Climate in Alaska 00:00 Traditional Ecological Knowledge 0:36 Controlled Burns 2:45 Effects of Climate Change 4:29 Environmental Justice 5:59 Review & Credits 9:11 Sources:"
YouTube Link 2025-12-02T17:00Z 16.9M followers, 60.5K engagements

"Personality Disorders: Crash Course Psychology #34 What exactly are Personality Disorders How can they be diagnosed Can we prevent some of them In this episode of Crash Course Psychology Hank gives us the down-low on things like Ego-Dystonic and Ego-Syntonic Disorders Borderline and Antisocial Personality Disorders and the potential biological psychological and social roots of these disorders. Want more videos about psychology Check out our sister channel SciShow Psych at https://www.youtube.com/scishowpsych -- Chapters: Introduction: Personality Disorders 00:00 Ego-Dystonic vs. Ego-Syntonic"
YouTube Link 2014-10-14T21:01Z 16.9M followers, 5.5M engagements

"The Economics of Immigration: Crash Course Economics #33 Is Immigration good or bad Immigration is a touchy subject in the United States. The [----] election has been filled with debate about the subject and both proponents and opponents have lots of reasons for their stance. But this is a show about economics and when it comes to the effects of immigration on economies there is actually a lot of consensus. It turns out immigration is economically beneficial. Crash Course is on Patreon You can support us directly by signing up at http://www.patreon.com/crashcourse Thanks to the following"
YouTube Link 2016-05-18T22:54Z 16.9M followers, 672K engagements

"Locke Berkeley & Empiricism: Crash Course Philosophy #6 This week we answer skeptics like Descartes with empiricism. Hank explains John Lockes primary and secondary qualities and why George Berkeley doesnt think that distinction works -- leaving us with literally nothing but our minds ideas and perceptions. -- Images and video via VideoBlocks or Wikimedia Commons licensed under Creative Commons by 4.0: https://creativecommons.org/licenses/by/4.0/ -- Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios Crash Course Philosophy is sponsored by Squarespace."
YouTube Link 2016-03-15T21:22Z 16.9M followers, 3M engagements

"Where and Why Do People Move Crash Course Geography #32 People have been migrating and transplanting since before recorded history and understanding the reasons why people migrate can help explain some of the cultural economic and political patterns we see around the world. Today were going to mostly focus on the Indian diaspora which is the largest in the world with over [--] million people of Indian descent living outside of India. And through this lens well teach you about many different types of voluntary and involuntary migration throughout history and around the world. SOURCES Migration"
YouTube Link 2021-11-01T19:16Z 16.9M followers, 350.4K engagements

"Taxes: Crash Course Economics #31 We've been talking about the unavoidables recently. Last time we covered Death. This time it's taxes. So what are taxes Why do we pay taxes What is all that tax money used for This week Adriene is going to cover all that and more. We'll talk about types of taxes progressive and regressive taxes tax brackets and we'll even get into a few historical scenarios where bad tax policy led to revolutions. Crash Course is on Patreon You can support us directly by signing up at http://www.patreon.com/crashcourse Thanks to the following Patrons for their generous"
YouTube Link 2016-04-27T23:46Z 16.9M followers, 1.6M engagements

"Chi-Square Tests: Crash Course Statistics #29 Today we're going to talk about Chi-Square Tests - which allow us to measure differences in strictly categorical data like hair color dog breed or academic degree. We'll cover the three main Chi-Square tests: goodness of fit test test of independence and test of homogeneity. And explain how we can use each of these tests to make comparisons. Crash Course is on Patreon You can support us directly by signing up at http://www.patreon.com/crashcourse Thanks to the following Patrons for their generous monthly contributions that help keep Crash Course"
YouTube Link 2018-08-29T21:09Z 16.9M followers, 703.5K engagements

"The Rise of Cotton: Crash Course Black American History #13 Cotton is everywhere in our modern world and it became a hugely important crop in the 19th century United States. Cotton was a huge economic boon to the US and much of that wealth was built on the backs of enslaved laborers. And cotton didn't only benefit the states where slavery was legal. While cotton was mainly grown in the southern states much of that cotton was processed in northern textile mills. Today we'll learn about the growth of the cotton industry who benefitted from it and who was left out. Clint's book How the Word is"
YouTube Link 2021-08-13T23:26Z 16.9M followers, 478.4K engagements

"How has technology influenced literature: Crash Course Latin American Literature #11 Science and technology have existed in Latin America since well before Columbus arrived. But how have they impacted literature In this episode of Crash Course Latin American Literature well trace technological developments from the calendars of the Maya to WWIIs weapons of mass destructionand uncover the creative ways writers have responded to them. Introduction: A QR Poem 00:00 STEM in Pre-Colonial Latin America 0:53 "El Eclipse" 1:47 Creacionismo & "Altazor" 2:31 The Crack Movement 5:42 "En Busca de"
YouTube Link 2026-02-05T17:00Z 16.9M followers, 15.9K engagements

"Ideal Gas Problems: Crash Course Chemistry #13 We don't live in a perfect world and neither do gases - it would be great if their particles always fulfilled the assumptions of the ideal gas law and we could use PV=nRT to get the right answer every time. Unfortunately the ideal gas law (like our culture) has unrealistic expectations when it comes to size and attraction: it assumes that particles do not have size at all and that they never attract each other. So the ideal gas "law" often becomes little more than the ideal gas estimate when it comes to what gases do naturally. But it's a close"
YouTube Link 2013-05-14T01:51Z 16.9M followers, 1.2M engagements

"Kant & Categorical Imperatives: Crash Course Philosophy #35 Our next stop on our tour of ethics is Kants ethics. Today Hank explains hypothetical and categorical imperatives the universalizability principle autonomy and what it means to treat people as ends-in-themselves rather than as mere means. -- All other images and video either public domain or via VideoBlocks or Wikimedia Commons licensed under Creative Commons BY 4.0: https://creativecommons.org/licenses/by/4.0/ -- Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios Crash Course Philosophy is"
YouTube Link 2016-11-14T23:34Z 16.9M followers, 4.6M engagements

"Blood Part [--] - There Will Be Blood: Crash Course Anatomy & Physiology #30 It's time to start talking about some of the terrible things you can do to your own body like blood doping. We'll start by explaining the structure and function of your erythrocytes and of hemoglobin which they use to carry oxygen. We'll follow the formation and life cycle of a red blood cell including how its levels are regulated by EPO and its signaling molecules. We'll wrap up by looking at how blood doping works and how it is truly a recipe for disaster. Pssst. we made flashcards to help you review the content in"
YouTube Link 2015-08-11T18:15Z 16.9M followers, 2.2M engagements

"Altered States: Crash Course Psychology #10 You may think you know all about hypnosis from the movies. Zoolander The Manchurian Candidate etc. but there's a whole lot more going on. In this episode of Crash Course Psychology Hank tells us about some of the many altered states of consciousness including hypnosis. Want more videos about psychology Check out our sister channel SciShow Psych at https://www.youtube.com/scishowpsych -- Chapters: Introduction: Hypnosis & Altered States of Consciousness 00:00 Facts & Fallacies About Hypnosis 2:00 How does hypnosis work 3:05 Drug Tolerance &"
YouTube Link 2014-04-07T22:53Z 16.9M followers, 2.9M engagements

"Dark Matter: Crash Course Astronomy #41 Today on Crash Course Astronomy Phil dives into some very dark matters. The stuff we can actually observe in the universe isnt all there is. Galaxies and other large structures in the universe are created and shifted by a force we detect mostly indirectly by observing its impact: DARK MATTER. Check out the Crash Course Astronomy solar system poster here: http://store.dftba.com/products/crashcourse-astronomy-poster -- Chapters: Introduction: Dark Matter 00:00 Discovery of Dark Matter 0:55 What is Dark Matter 3:50 Axions 4:33 Gravitational Lensing and the"
YouTube Link 2015-12-03T22:00Z 16.9M followers, 1.9M engagements

"Introduction to Media Literacy: Crash Course Media Literacy #1 First things first: what is media literacy In our first episode Jay breaks this question down and explains how were going to use it to explore our media saturated world. Introduction: How much media do you consume 0:00 What Media is 1:04 Media Literacy 2:30 Media Messages vs. Media Effects 3:50 Encoding and Decoding 4:44 Thought Bubble: Encoding and Decoding broken down 5:28 Textual Determinism 6:47 What information is trustworthy 7:29 Spread media literacy 8:23 What's to come 9:20 Credits 10:10 *** Resources & References: U.S."
YouTube Link 2018-02-27T22:17Z 16.9M followers, 1.3M engagements

"Martin Luther King Jr: Crash Course Black American History #36 Today we're going to learn about perhaps the best-known leader in the Civil Rights Era Martin Luther King Jr. From his rise to notoriety during the Montgomery Bus Boycott in [----] his leadership of the Southern Christian Leadership Conference the March on Washington in [----] his work toward the Civil Rights and Voting Rights Acts of the mid-1960s and his assassination in [----] Dr. King is very broadly known. But maybe he isn't that well understood. Like many extremely famous people Martin Luther King can sometimes be drawn as a bit"
YouTube Link 2022-04-09T18:07Z 16.9M followers, 508.4K engagements

"Reproductive System Part [--] - Pregnancy & Development: Crash Course Anatomy & Physiology #43 We've reached the grand finale of our four-part series on human reproduction: BABIES Today Hank walks you through the stages of pregnancy beginning with how a zygote develops into blastomeres to a morula to a blastocyst and finally to an embryo and a fetus. He also explains some of the amazing anatomical changes that take place in the mother and the hormonal sequence of events that lead to labor. Pssst. we made flashcards to help you review the content in this episode Find them on the free Crash Course"
YouTube Link 2015-11-23T22:17Z 16.9M followers, 2.1M engagements

"Heredity: Crash Course Biology #9 Hank and his brother John discuss heredity via the gross example of relative ear wax moistness. This video uses sounds from Freesound.org. References: http://www.mpiwg-berlin.mpg.de/en/research/projects/DeptIII_Cultural_History_Heredity http://www.pbs.org/wgbh/nova/genome/her_ari.html http://www.universityofcalifornia.edu/news/article/4465 http://www.nytimes.com/2006/01/29/science/29cnd-ear.html http://udel.edu/mcdonald/mythearwax.html Crash Course is on Patreon You can support us directly by signing up at http://www.patreon.com/crashcourse Want to find Crash"
YouTube Link 2012-03-26T22:33Z 16.9M followers, 5.5M engagements

"Language Acquisition: Crash Course Linguistics #12 Babies have to learn a lot of language stuff before they can even say their first word. Exposure to language as infants doesnt just help us say those first words but gives us the tools we need to acquire advanced language skills and learn more languages later on in life. In this episode of Crash Course Linguistics well learn about language acquisition and how the process differs for babies and adults. Want even more linguistics Check out the Lingthusiasm podcast hosted by the writers of Crash Course Linguistics: https://lingthusiasm.com/ ***"
YouTube Link 2020-12-11T19:20Z 16.9M followers, 401.3K engagements

"Urinary System Part 2: Crash Course Anatomy & Physiology #39 As we promised last week we're not quite done talking about your pee yet. Today Hank explains how the urinary system regulates the production of urine by maintaining a study glomerular flow rate. He'll also cover the anatomy of storing and excreting urine -- from the ureters to the urethra -- and the nervous systems role in controlling the act of urination. Pssst. we made flashcards to help you review the content in this episode Find them on the free Crash Course App Download it here for Apple Devices: https://apple.co/3d4eyZo"
YouTube Link 2015-10-19T21:00Z 16.9M followers, 2.7M engagements

"Taxonomy: Life's Filing System - Crash Course Biology #19 Hank tells us the background story and explains the importance of the science of classifying living things also known as taxonomy. References: http://anthro.palomar.edu/animal/table_kingdoms.htm http://www.strangescience.net/linn.htm http://www.newyorker.com/reporting/2009/01/19/090119fa_fact_leporecurrentPage=all http://linnaeus.c18.net/Doc/lbio.php http://faculty.fmcc.suny.edu/mcdarby/animals&plantsbook/History/02-Explaining-Life-Classification.htm http://hyperphysics.phy-astr.gsu.edu/hbase/biology/autotroph.html"
YouTube Link 2012-06-04T21:19Z 16.9M followers, 3.6M engagements

"Metaethics: Crash Course Philosophy #32 We begin our unit on ethics with a look at metaethics. Hank explains three forms of moral realism moral absolutism and cultural relativism including the difference between descriptive and normative cultural relativism and moral subjectivism which is a form of moral antirealism. Finally well introduce the concept of an ethical theory. -- Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios Crash Course Philosophy is sponsored by Squarespace. http://www.squarespace.com/crashcourse -- Want to find Crash Course elsewhere"
YouTube Link 2016-10-25T23:03Z 16.9M followers, 2.4M engagements

"Anselm & the Argument for God: Crash Course Philosophy #9 Today we are introducing a new area of philosophy philosophy of religion. We are starting this unit off with Anselms argument for Gods existence while also considering objections to that argument. -- Thats a Neigh David Goehring https://www.flickr.com/photos/carbonnyc/8757020626 All other images via Wikimedia Commons licensed under Creative Commons by 4.0: https://creativecommons.org/licenses/by/4.0/ -- Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios Crash Course Philosophy is sponsored by"
YouTube Link 2016-04-04T21:00Z 16.9M followers, 3.3M engagements

"The Basics of Organic Nomenclature: Crash Course Organic Chemistry #2 Language is complicated especially in organic chemistry. This episode of Crash Course Organic Chemistry is all about nomenclature. We'll dive into IUPAC systematic naming of organic molecules and get to practice with the help of three trusty steps Episode Sources: IUPAC Organic Chemistry Nomenclature for organic compounds https://www.acdlabs.com/iupac/nomenclature/ Series Sources: Brown W. H. Iverson B. L. Ansyln E. V. Foote C. Organic Chemistry; 8th ed.; Cengage Learning Boston [----]. Bruice P. Y. Organic Chemistry 7th ed.;"
YouTube Link 2020-05-06T21:00Z 16.9M followers, 1.1M engagements

"Let's talk about porn literacy: Sex Ed #12 Like it or not porn exists. In this episode of Crash Course Sex Ed we unpack the pros and cons of pornography its long and storied history and how to engage with it critically and safely. Our friends at asapSCIENCE just published a great video about the effects of porn on your brain- check it out here: https://www.youtube.com/watchv=Urgf5zoJNzU Introduction: Porn Is Everywhere 00:00 What Is Porn 0:28 The History of Porn 1:46 Benefits of Porn 2:57 Downsides of Porn 3:33 Porn Research 5:48 Sexual Literacy 6:49 Review & Credits 8:47 Sources:"
YouTube Link 2025-06-05T16:00Z 16.9M followers, 324.7K engagements

"Bureaucracy Basics: Crash Course Government and Politics #15 This week Craig Benzine discusses bureaucracies. Bureaucracies tend to be associated with unintelligible rules and time-wasting procedures but they play an important though controversial role in governing. From the FDA to the EPA these agencies were established to help the government manage and carry out laws much more efficiently - to bring rule-making and enforcement closer to the experts. But the federal bureaucracy (which is part of the executive branch) has a lot of power and sometimes acts like Congress in creating regulations"
YouTube Link 2015-05-09T15:41Z 16.9M followers, 1.7M engagements

"Myths & Misconceptions About Native Americans: Ep [--] of Crash Course Native American History From sports mascots to the First Thanksgiving bland representations of Native Americans are everywhere. In this episode of Crash Course Native American History well tackle common myths and misconceptions about Native people and uncover the truth behind tribal casinos government handouts and more. Introduction: Super Bowl XXVI 00:00 "The First Thanksgiving" 0:38 Westerns & Native Invisibility 4:20 Native Mascots 5:28 Casinos & Government Handouts 8:26 Review & Credits 11:13 Sources:"
YouTube Link 2025-05-27T16:00Z 16.9M followers, 222.7K engagements

"Eugenics and Francis Galton: Crash Course History of Science #23 After Darwin blew the doors off the scientific community a lot of people did some weird and unscientific stuff with his ideas. Francis Galton and a few others decided natural selection could be used to make the human race "better" and came up with Eugenics. *** Crash Course is on Patreon You can support us directly by signing up at http://www.patreon.com/crashcourse Thanks to the following Patrons for their generous monthly contributions that help keep Crash Course free for everyone forever: Mark Brouwer Kenneth F Penttinen"
YouTube Link 2018-10-08T22:37Z 16.9M followers, 597.1K engagements

"Maxwell's Equations: Crash Course Physics #37 In the early 1800s Michael Faraday showed us how a changing magnetic field induces an electromotive force or emf resulting in an electric current. He also found that electric fields sometimes act like magnetic fields and developed equations to calculate the forces exerted by both. In the mid-1800s Scottish physicist James Maxwell thought something interesting was going on there too. So he decided to assemble a set of equations that held true for all electromagnetic interactions. In this episode of Crash Course Physics Shini talks to us about"
YouTube Link 2017-01-13T23:00Z 16.9M followers, 893.2K engagements

"2001 - A Space Odyssey: Crash Course Film Criticism #15 Well here we are. It's the final episode of Crash Course Film Criticism and we're going to chat about one of the more polarizing films ever made: Stanley Kubrick's 2001: A Space Odyssey. On the surface [----] tells the story of human history as related to technology and some kind of alien influence. But if we go deeper there's a lot to this film about evolution and how technology might spell our end. or at least our change. Join Michael Aranda one more time for this great Science Fiction masterpiece. *** Check out all [--] films we'll be"
YouTube Link 2018-04-26T22:04Z 16.9M followers, 778.3K engagements

"Holden JD and the Red Cap - The Catcher in the Rye Part 2: Crash Course English Literature #7 In which John continues the discussion of JD Salinger's Catcher in the Rye. This week John reads the novel with Salinger's life story in mind. John explores how Salinger's war experience educational background and romantic life inform the events of Holden Caulfield's life. How did Holden get to be such a whiny self-absorbed teen While it's not a great idea to read novels too biographically Salinger's life surely informed Holden's. Watch on to get an idea of just how much. Consider supporting local"
YouTube Link 2013-01-18T01:09Z 16.9M followers, 1.3M engagements

"Derivatives: Crash Course Physics #2 CALCULUS Today we take our first steps into the language of Physics; mathematics. Every branch of science has its own way to describe the things that it investigates. And with Physics that's math. In this episode Shini talks us through derivatives and how calculus helps us to understand the world around us. -- Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios -- Want to find Crash Course elsewhere on the internet Facebook - https://www.facebook.com/YouTubeCrashCourse/ Twitter - http://www.twitter.com/TheCrashCourse"
YouTube Link 2016-04-07T20:54Z 16.9M followers, 2.1M engagements

"A World Without Governments Anarchism Explained The word anarchy is synonymous with chaos but what does it mean to political theorists In this episode of Crash Course Political Theory we explore the theories and practices of anarchism. Crash Course Political Theory #7 Introduction: 00:00 What Is Anarchy 0:42 Classical Anarchy 3:28 Collectivism 4:54 Anarchist Communism 5:39 Modern Anarchy 6:39 Review & Credits 10:30 Special thanks to Chris Boland for the use of his portrait of Rebecca Solnit / www.chrisboland.com Sources:"
YouTube Link 2025-01-02T17:00Z 16.9M followers, 302.9K engagements

"Crash Course Public Health Preview Welcome to Crash Course Public Health Over the next [--] episodes Vanessa Hill unpacks what public health is who does public health work and why thinking about it is so important Public Health is so much more than just washing your hands adhering to smoking laws or wearing your seatbelt -- although it is those things too. Broadly public health is an approach to preventing disease prolonging life and promoting health for everyone. So over the course of this series we'll show you the many ways the story of your health isnt just about you and how its about so"
YouTube Link 2022-07-21T18:02Z 16.9M followers, 108.7K engagements

"The Persians & Greeks: Crash Course World History #5 In which John compares and contrasts Greek civilization and the Persian Empire. Of course we're glad that Greek civilization spawned modern western civilization right Maybe not. From Socrates and Plato to Darius and Xerxes John explains two of the great powers of the ancient world all WITHOUT the use of footage from [---]. Chapters: Introduction 00:00 The Persian Empire 0:39 An Open Letter to Aristophanes 3:33 Ionian Greek City-States 5:04 The Persian Wars 5:44 The Peloponnesian War 7:21 Did the Right Side Win the Persian Wars 9:09 Credits"
YouTube Link 2012-02-23T21:57Z 16.9M followers, 8.6M engagements

"American Imperialism: Crash Course US History #28 In which John Green teaches you about Imperialism. In the late 19th century the great powers of Europe were running around the world obtaining colonial possessions especially in Africa and Asia. The United States which as a young country was especially susceptible to peer pressure followed along and snapped up some colonies of its own. The US saw that Spain's hold on its empire was weak and like some kind of expansionist predator it jumped into the Cuban War for Independence and turned it into the Spanish-Cuban-Phillipino-American War which"
YouTube Link 2013-09-05T23:26Z 16.9M followers, 4.8M engagements

"Carbon. SO SIMPLE: Crash Course Biology #1 Check out our new-and-improved Crash Course Biology series here https://youtube.com/playlistlist=PL8dPuuaLjXtPW_ofbxdHNciuLoTRLPMgB And thus begins the most revolutionary biology course in history. Come and learn about covalent ionic and hydrogen bonds. What about electron orbitals the octet rule and what does it all have to do with a madman named Gilbert Lewis It's all contained within. Chapter Timecode: [--]. Intro = 00:00 [--]. Carbon = 01:51 [--]. Electron Shells = 04:23 [--]. The Octet Rule = 06:52 [--]. Gilbert Lewis = 05:09 [--]. Covalent Bonds = 04:41 [--]. Polar"
YouTube Link 2012-01-30T18:53Z 16.9M followers, 8.4M engagements

"Language Voice and Holden Caulfield - The Catcher in the Rye Part 1: CC English Literature #6 In which John Green examines JD Salinger's novel The Catcher in the Rye. John pulls out the old-school literary criticism by examining the text itself rather than paying attention to the biographical or historical context of the novel (that's for next week). Listen words matter. The Catcher in the Rye has managed to endure without a movie adaptation because a lot of its quality arises from the book's language. Find out how Holden's voice his language and his narrative technique combine to make the"
YouTube Link 2013-01-10T23:09Z 16.9M followers, 2.2M engagements

"The First Programming Languages: Crash Course Computer Science #11 Get your first two months of CuriosityStream free by going tohttp://curiositystream.com/crashcourse and using the promo code crashcourse. So we ended last episode with programming at the hardware level with things like plugboards and huge panels of switches but what was really needed was a more versatile way to program computers - software For much of this series weve been talking about machine code or the 1s and 0s our computers read to perform operations but giving our computers instructions in 1s and 0s is incredibly"
YouTube Link 2017-05-10T21:30Z 16.9M followers, 1.2M engagements

"Indiana Jones & Pascal's Wager: Crash Course Philosophy #15 Today we conclude our unit on Philosophy of Religion and Hank gets a little help from Indiana Jones to explain religious pragmatism and Pascals Wager fideism and Kierkegaards leap to faith. -- Indiana Jones Copyright Walt Disney Studios All other images and video via VideoBlocks or Wikimedia Commons licensed under Creative Commons BY 4.0: https://creativecommons.org/licenses/by/4.0/ -- Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios Crash Course Philosophy is sponsored by Squarespace."
YouTube Link 2016-05-23T21:00Z 16.9M followers, 1.6M engagements

"Reproductive System Part [--] - Sex & Fertilization: Crash Course Anatomy & Physiology #42 After weeks of discussion of human reproduction today we arrive at the main event: THE SEX. Hank explains the four phases of the human sexual response how fertilization happens and how different contraceptive methods work. Pssst. we made flashcards to help you review the content in this episode Find them on the free Crash Course App Download it here for Apple Devices: https://apple.co/3d4eyZo Download it here for Android Devices: https://bit.ly/2SrDulJ Chapters: Introduction 00:00 Four Phases of Human"
YouTube Link 2015-11-16T22:00Z 16.9M followers, 2.4M engagements

"Inflation and Bubbles and Tulips: Crash Course Economics #7 In which Adriene and Jacob teach you about how and why prices rise. Sometimes prices rise as a result of inflation which is a pretty normal thing for economies to do. We'll talk about how across the board prices rise over time and how economists track inflation. Bubbles are a pretty normal thing for humans to do. One item like tulips or beanie babies or houses or tech startups experience a rapid rise in prices. This is often accompanied by speculation a bunch of outrageous profits and then a nasty crash when the bubble bursts. People"
YouTube Link 2015-09-13T01:26Z 16.9M followers, 1.9M engagements

"Media & the Mind: Crash Course Media Literacy #4 You are constantly surrounded by media so the question is: how does your brain handle all of that The unfortunate answer is that our brains have a lot of processes that not super helpful for media literacy but hopefully with a little self-awareness we can work around that. Introduction: How do our minds react to media 0:00 Cognitive Load and automation 1:06 Schema 1:30 Memory 2:34 The Law of Closure 3:00 False Memory 3:49 Thought Bubble: Conformation Bias 4:41 Social Media 6:30 Information Satisficing 6:50 Humans love stories 7:24 Credits 8:42"
YouTube Link 2018-03-20T21:04Z 16.9M followers, 354.9K engagements

"Decolonization and Nationalism Triumphant: Crash Course World History #40 In which John Green teaches you about the post-World War II breakup of most of the European empires. As you'll remember from previous installments of Crash Course Europeans spent several centuries sailing around the world creating empires despite the fact that most of the places they conquered were perfectly happy to carry on alone. After World War II most of these empires collapsed. This is the story of those collapses. In most places the end of empire was not orderly and violence often ensued. While India was a (sort"
YouTube Link 2012-10-25T23:25Z 16.9M followers, 4.2M engagements

"Islam the Quran and the Five Pillars: Crash Course World History #13 In which John Green teaches you the history of Islam including the revelation of the Qu'ran to Muhammad the five pillars of Islam how the Islamic empire got its start the Rightly Guided Caliphs and more. Learn about hadiths Abu Bakr and whether the Umma has anything to do with Uma Thurman (spoiler alert: it doesn't). Also learn a little about the split between Sunni and Shia Muslims and how to tell if this year's Ramadan is going to be difficult for your Muslim friends. Let's try to keep the flame wars out of this reasoned"
YouTube Link 2012-04-19T23:06Z 16.9M followers, 13.2M engagements

"Meteors: Crash Course Astronomy #23 Today Phil helps keep you from ticking off an astronomer in your life by making sure you know the difference between a meteor meteorite and meteoroid. When the Earth plows through the stream emitted by a comet we get a meteor shower. Meteors burn up about [---] km above the Earth but some survive to hit the ground. Most of these meteorites are rocky some are metallic and a few are a mix of the two. Very big meteorites can be a very big problem but there are plans in the works to prevent us from going the way of the dinosaurs. Check out the Crash Course"
YouTube Link 2015-07-02T22:59Z 16.9M followers, 1.1M engagements

"The History of AI Explained: Crash Course Futures of AI #1 In [----] Moores Law predicted how computers would become smaller faster and more powerful than ever before. But here in [----] were on the brink of an even bigger revolution. In this episode we explore where AI's been what it can do and where it might be going. AI benchmarks and scaling laws help us understand what AI is and could be capable of. Introduction 00:00 How did AI get here 2:21 How do we measure AI progress 7:47 How can we predict the future of AI 9:10 Conclusion 11:29 About This Series: AI is changing FAST so rather than"
YouTube Link 2025-11-19T17:01Z 16.9M followers, 40.2K engagements

"Noah's Ark and Floods in the Ancient Near East: Crash Course World Mythology #16 This week on Crash Course mythology Mike is talking to you about floods. You may have heard the story of Noah and the Ark from the Bible but that is not the only flood story humans tell. Turns out it's a common thing across cultures. You could say the study of mythology is.flooded with them. Sorry. We'll be looking at floods from Mesopotamia from the Epic of Gilgamesh and a flood story from the Zoroastrian tradition. And we'll look at a Roman flood story from Ovid's metamorphosis. It's a deluge of flood stories"
YouTube Link 2017-06-16T23:47Z 16.9M followers, 746.9K engagements

"The Binomial Distribution: Crash Course Statistics #15 Today we're going to discuss the Binomial Distribution and a special case of this distribution known as a Bernoulli Distribution. The formulas that define these distributions provide us with shortcuts for calculating the probabilities of all kinds of events that happen in everyday life. They can also be used to help us look at how probabilities are connected For instance knowing the chance of getting a flat tire today is useful but knowing the likelihood of getting one this year or in the next five years may be more useful. And heads up"
YouTube Link 2018-05-09T21:58Z 16.9M followers, 422.5K engagements

"Lord of the Flies: Crash Course Literature [---] This week John is talking about one of his least favorite novels The Lord of the Flies by William Golding. Lord of the Flies is a novel of ideas and John doesn't agree with the central idea of the novel which diminished his enjoyment of the book. The central idea of the book is that everyone has evil in their hearts. Which we don't necessarily agree with. That said it's a good read and worth reading. *** Consider supporting local book stores by purchasing your books through our Bookshop affiliate link https://bookshop.org/shop/complexly or at"
YouTube Link 2016-08-04T14:50Z 16.9M followers, 1.5M engagements

"Sociology & the Scientific Method: Crash Course Sociology #3 What puts the science in social science Today well explore positivist sociology and how sociologists use empirical evidence to explore questions about the social world. Well also introduce two alternatives: interpretative sociology and critical sociology. Crash Course is made with Adobe Creative Cloud. Get a free trial here: https://www.adobe.com/creativecloud.html *** Crash Course is on Patreon You can support us directly by signing up at http://www.patreon.com/crashcourse Thanks to the following Patrons for their generous monthly"
YouTube Link 2017-03-27T20:47Z 16.9M followers, 1.3M engagements

"E1 and E2 Reactions: Crash Course Organic Chemistry #22 Weve spent the last few episodes talking about substitution reactions but now its time to talk about a related type of reaction: elimination reactions Elimination reactions are super important because they are the main way we can make compounds with double and triple bonds in organic chemistry. In this episode of Crash Course Organic Chemistry were going to cover a lot including a review of substitution reactions E1 and E2 mechanisms Zaitsevs rule and more. And of course well finish with some practice problems. Episode Sources:"
YouTube Link 2021-02-17T23:15Z 16.9M followers, 328.6K engagements

"Search and Seizure: Crash Course Government and Politics #27 This week Craig talks about police searches and seizures. Now the fourth amendment says that you have the right to be protected against "unreasonable searches and seizures" but what exactly does this mean Well it's complicated. The police often need warrants issued with proof of probable cause but this isn't always the case - such as when you're pulled over for a moving violation. We'll finish up with the limitations of these protections and discuss one group of people in particular that aren't protected equally - students. Produced"
YouTube Link 2015-08-15T20:55Z 16.9M followers, 1.1M engagements

"Monetary and Fiscal Policy: Crash Course Government and Politics #48 Today Craig is going to dive into the controversy of monetary and fiscal policy. Monetary and fiscal policy are ways the government and most notably the Federal Reserve influences the economy - for better or for worse. So were going to start by looking at monetary policy and specifically how the Federal Reserve uses interests rates as a means of controlling (or at least attempting to control) inflation. Well then move onto fiscal policy - that is the governments use of taxation to raise and spend money. Its all well pretty"
YouTube Link 2016-02-13T01:38Z 16.9M followers, 1.1M engagements

"Native Languages & The Indian Education Act: Ep [--] of Crash Course Native American History Its time to save Native languagesbefore its too late. In this episode of Crash Course Native American History we dig into the ways Native languages were destroyed and the resilient ways tribes are bringing them back to life. Introduction: "Never Alone" 00:00 The State of Native Language 0:35 Revealing Native Culture 1:40 Colonization & Boarding Schools 3:42 Language Revitalization 7:00 Review & Credits 9:04 Sources:"
YouTube Link 2025-11-04T17:00Z 16.9M followers, 48.3K engagements

"Where Does Wind Come From Crash Course Geography #8 There's an invisible force shaping our lives affecting the weather climate land economy and just whether a flag looks majestic or not - we're talking about the wind Today were going to go into the science of where the wind comes from and take a closer look at the major wind systems and pressure belts across the globe. We'll explain how the Coriolis effect causes the winds to curve (and makes air travel a bit more complicated) explore the doldrums and horse latitudes that could stall ships for days and show the enormous impact the trade winds"
YouTube Link 2021-02-23T22:00Z 16.9M followers, 476.4K engagements

"Asteroids: Crash Course Astronomy #20 Now that weve finished our tour of the planets were headed back to the asteroid belt. Asteroids are chunks of rock metal or both that were once part of smallish planets but were destroyed after collisions. Most orbit the Sun between Mars and Jupiter but some get near the Earth. The biggest Ceres is far smaller than the Moon but still big enough to be round and has undergone differentiation. CORRECTION: In the episode we say that [----] TK7 is [---] km away. However [----] TK7 stays on average [---] million kilometers from Earth but that can vary wildly. Sorry"
YouTube Link 2015-06-04T21:00Z 16.9M followers, 1.3M engagements

"Respiratory System Part 1: Crash Course Anatomy & Physiology #31 So we all know that breathing is pretty important right Today we're going to talk about how it works starting with the nameless evolutionary ancestor that we inherited this from continuing to the mechanics of both simple diffusion and bulk flow as well as the physiology of breathing and finishing with the anatomy of both the conducting zone and the respiratory zone of your respiratory system. Pssst. we made flashcards to help you review the content in this episode Find them on the free Crash Course App Download it here for Apple"
YouTube Link 2015-08-24T21:00Z 16.9M followers, 5.7M engagements

"Uniform Circular Motion: Crash Course Physics #7 Did you know that centrifugal force isn't really a thing I mean it's a thing it's just not real. In fact physicists call it a "fictitious force." Mind blown yet To explore this idea further this week Shini sits down with us to discuss centripetal force centrifugal force and a few other bits of physics to help us understand uniform circular motion. *** Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios Crash Course is on Patreon You can support us directly by signing up at http://www.patreon.com/crashcourse"
YouTube Link 2016-05-12T21:04Z 16.9M followers, 2.1M engagements

"The Secret Language of Cults: Crash Course Lecture Words hold tremendous power. Cult leaders know that all too well but so do fitness instructors celebrities and corporate leaders. In our world today we are increasingly exposed to and influenced by complicated mazes of buzzwords mantras euphemisms clichs and redefinitions: in short language thats just a little bit cultish. Social commentator and author Amanda Montell presents this Crash Course lecture about linguistics culture and belonging. Whats a Crash Course Lecture While traditional Crash Courses on our channel break open an entire"
YouTube Link 2025-09-16T16:00Z 16.9M followers, 551.4K engagements

"Revolutions of 1848: Crash Course European History #26 In [----] Europe experienced a wave of revolutions. Last week we covered some of the reform movements that presaged these uprisings. This week we're learning about what the people wanted from the revolutions who was involved and how many of those goals were accomplished. We'll look at revolutions in the Austrian Empire Hungary Italy the German States and the region formerly known as Poland. Sources: -Johann Nepomuk Hfel (1788-1964)-'the first uncensored newspaper are sold in street of Vienna after the revolution of 1848'-watercolour"
YouTube Link 2019-11-19T21:55Z 16.9M followers, 1.1M engagements

"The Economics of Healthcare: Crash Course Economics #29 Why is health care so expensive Once again there are a lot of factors in play. Jacob and Adriene look at the many reasons that health care in the US is so expensive and what exactly we get for all that money. Spoiler alert: countries that spend less and get better results are not that uncommon. Crash Course is on Patreon You can support us directly by signing up at http://www.patreon.com/crashcourse Thanks to the following Patrons for their generous monthly contributions that help keep Crash Course free for everyone forever: Mark Eric"
YouTube Link 2016-04-07T01:05Z 16.9M followers, 1.3M engagements

"Macroeconomics: Crash Course Economics #5 This week Adriene and Jacob teach you about macroeconomics. This is the stuff of big picture economics and the major movers in the economy. Like taxes and monetary policy and inflation and policy. We need this stuff because if you don't have a big picture of the economy crashes and panics are more likely. Of course economics is extremely complex and unpredictable. Today we'll talk about GDP as a measure of a country's economic health the basics of economic analysis and even a little about full employment unemployment Crash Course is on Patreon You can"
YouTube Link 2015-08-24T13:10Z 16.9M followers, 3.2M engagements

"Darwin and Natural Selection: Crash Course History of Science #22 "Survival of the Fittest" sounds like a great WWE show but today we're talking about that phrase as it relates to Charles Darwin and Alfred Wallace. Darwin and Wallace are at the heart of understanding evolution and natural selection. Today Hank talks about their wonderful (if not seasick inducing) trips around the world. *** Crash Course is on Patreon You can support us directly by signing up at http://www.patreon.com/crashcourse Thanks to the following Patrons for their generous monthly contributions that help keep Crash"
YouTube Link 2018-10-01T23:25Z 16.9M followers, 1.3M engagements

"Eating and Body Dysmorphic Disorders: Crash Course Psychology #33 Get Help: If you think you have an eating disorder please contact http://www.nationaleatingdisorders.org/ for help *** In this episode of Crash Course Psychology Hank walks us through the troubling world of Eating and Body Dysmorphic disorders. There's a lot going on here and even though we still have a lot of dots to connect a lot we can learn to help ourselves and each other. Want more videos about psychology Check out our sister channel SciShow Psych at https://www.youtube.com/scishowpsych -- Chapters: Introduction: Eating"
YouTube Link 2014-10-07T03:17Z 16.9M followers, 3.3M engagements

"Nonviolence and Peace Movements: Crash Course World History [---] In which John Green teaches you about nonviolence and peace movements in the 20th century. What is nonviolence What is a peace movement Well. traditionally humans often resort to violence when they come into conflict. In the 20th century it became much more common for people to enact change by means of nonviolence and there was a common thread of connection between many of the most notable advocates of peaceful change. Crash Course will take you from Gandhi to Gregg to Bayard Rustin to Martin Luther King Jr to the Cold War to"
YouTube Link 2015-03-13T13:34Z 16.9M followers, 1.8M engagements

"Natural Language Processing: Crash Course Computer Science #36 Today were going to talk about how computers understand speech and speak themselves. As computers play an increasing role in our daily lives there has been an growing demand for voice user interfaces but speech is also terribly complicated. Vocabularies are diverse sentence structures can often dictate the meaning of certain words and computers also have to deal with accents mispronunciations and many common linguistic faux pas. The field of Natural Language Processing or NLP attempts to solve these problems with a number of"
YouTube Link 2017-11-22T22:01Z 16.9M followers, 537.5K engagements

"Metabolism & Nutrition Part 1: Crash Course Anatomy & Physiology #36 Metabolism is a complex process that has a lot more going on than personal trainers and commercials might have you believe. Today we are exploring some of its key parts including vital nutrients -- such as water vitamins minerals carbs fats and proteins -- as well as how anabolic reactions build structures and require energy while catabolic reactions tear things apart and release energy. Pssst. we made flashcards to help you review the content in this episode Find them on the free Crash Course App Download it here for Apple"
YouTube Link 2015-09-28T23:14Z 16.9M followers, 4.3M engagements

"What Is God Like: Crash Course Philosophy #12 Today we are moving on from the existence of God to look at the philosophical debate surrounding the traditional divine attributes - omnipotence omniscience omnitemporality and omnibenevolence. We are exploring the puzzles that these attributes create as well as some possible solutions to those puzzles from Aquinas ideas of analogical predication to the work of Eleanor Stump. -- "The Avengers" copyright [----] Marvel Studios "Suicide Squad" copyright [----] Warner Bros. Entertainment Inc. All other images and via Wikimedia Commons licensed under"
YouTube Link 2016-05-02T21:05Z 16.9M followers, 2.4M engagements

"Psychological Research: Crash Course Psychology #2 So how do we apply the scientific method to psychological research Lots of ways but today Hank talks about case studies naturalistic observation surveys and interviews and experimentation. Also he covers different kinds of bias in experimentation and how research practices help us avoid them. Want more videos about psychology Check out our sister channel SciShow Psych at https://www.youtube.com/scishowpsych -- Chapters: Introduction: Intuition & Hindsight Bias 00:00 The Scientific Method 2:05 Case Studies 3:05 Naturalistic Observation 3:48"
YouTube Link 2014-02-11T00:33Z 16.9M followers, 7.3M engagements

"Unit Conversion & Significant Figures: Crash Course Chemistry #2 A unit is a frequently arbitrary designation we have given to something to convey a definite magnitude of a physical quantity and every quantity can be expressed in terms of the seven base units that are contained in the international system of units. Hank thinks this is a thrilling subject and while you may not agree it is a subject that is very important if you want to be a scientist and communicate with accuracy and precision with other scientists. So listen up and learn something or Hank might have to kill you (NOT REALLY)"
YouTube Link 2013-02-19T00:08Z 16.9M followers, 4.7M engagements

"How Should AI Be Governed: Crash Course Futures of AI #5 The future of AI is maybe beautiful maybe scary and definitely uncertain. But we do have a say in how it rolls out. From lab policies to international treaties people all over the world are trying to figure out how to build and use AI in safe responsible ways. But when the stakes are so high can humanity really come together and keep AI under control Chapter 1: Sam Altman & OpenAI 00:00 Chapter 2: Lab-level AI governance 1:13 Chapter 3: National AI Governance 5:07 Chapter 4: International AI Governance 8:40 Chapter 5: Review & Credits:"
YouTube Link 2025-12-17T17:01Z 16.9M followers, 20.6K engagements

"Consciousness: Crash Course Psychology #8 What exactly is consciousness Well. that's kind of a gray area. In this episode of Crash Course Psychology Hank gives you the basic ideas of what consciousness is how our attention works and why we shouldn't text and drive. ever. no really NEVER Want more videos about psychology Check out our sister channel SciShow Psych at https://www.youtube.com/scishowpsych -- Chapters: Introduction: What is Consciousness 00:00 States of Consciousness 1:51 Cognitive Neuroscience & Neuroimaging 2:16 Dual Processing 3:33 Selective Attention 4:23 Inattentional"
YouTube Link 2014-03-24T21:26Z 16.9M followers, 3.4M engagements

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