#  @ProfessorDaveExplains Professor Dave Explains Professor Dave Explains posts on YouTube about science, what is, how to, what are the most. They currently have [---------] followers and [---] posts still getting attention that total [-------] engagements in the last [--] hours. ### Engagements: [-------] [#](/creator/youtube::UC0cd_-e49hZpWLH3UIwoWRA/interactions)  - [--] Week [---------] +14% - [--] Month [---------] -13% - [--] Months [----------] +16% - [--] Year [----------] +96% ### Mentions: [---] [#](/creator/youtube::UC0cd_-e49hZpWLH3UIwoWRA/posts_active)  - [--] Week [---] +10% - [--] Month [---] +5.50% - [--] Months [---] +15% - [--] Year [-----] +123% ### Followers: [---------] [#](/creator/youtube::UC0cd_-e49hZpWLH3UIwoWRA/followers)  - [--] Week [---------] +0.24% - [--] Month [---------] +0.96% - [--] Months [---------] +7.40% - [--] Year [---------] +16% ### CreatorRank: [------] [#](/creator/youtube::UC0cd_-e49hZpWLH3UIwoWRA/influencer_rank)  ### Social Influence **Social category influence** [countries](/list/countries) 7.35% [finance](/list/finance) 7.35% [technology brands](/list/technology-brands) 2.71% [celebrities](/list/celebrities) 2.51% [travel destinations](/list/travel-destinations) 1.74% [stocks](/list/stocks) 1.55% [social networks](/list/social-networks) 0.77% [currencies](/list/currencies) 0.58% [cryptocurrencies](/list/cryptocurrencies) 0.39% [fashion brands](/list/fashion-brands) 0.39% **Social topic influence** [science](/topic/science) #2021, [what is](/topic/what-is) #1533, [how to](/topic/how-to) 8.9%, [what are](/topic/what-are) #314, [in the](/topic/in-the) 7.93%, [we are](/topic/we-are) #2090, [theory](/topic/theory) #733, [math](/topic/math) #673, [the first](/topic/the-first) 4.64%, [newton](/topic/newton) #117 **Top accounts mentioned or mentioned by** [@gmailcom](/creator/undefined) [@chegg](/creator/undefined) [@ucj2sn2gn1dmrfbeo6twizow](/creator/undefined) [@miniminuteman773](/creator/undefined) [@flintdibble](/creator/undefined) [@simulatedsun](/creator/undefined) [@pangburn](/creator/undefined) [@ucgr4mmvemdv8bg72wcm434g](/creator/undefined) [@ucxo0h6pghzvzboiby0phclq](/creator/undefined) [@uc17mwrzhp2dyqwomfpyj6gg](/creator/undefined) [@thebadstats](/creator/undefined) [@ikilledearl](/creator/undefined) [@ucmyeselo6axbrcuspf7s9dq](/creator/undefined) [@ucyhol6urlxryallt5yifldw](/creator/undefined) [@ucsfy5mr4g22le9t1dexq](/creator/undefined) [@rationalityrules](/creator/undefined) [@michaelferguson_staff](/creator/undefined) [@horrorhomestead](/creator/undefined) [@iammrbeat](/creator/undefined) [@graysonhawk](/creator/undefined) ### Top Social Posts Top posts by engagements in the last [--] hours "Acids and Bases pH and pOH We've all heard the terms acid and base. What do these mean Don't just tell me about pH silly. What structural detail makes a molecule an acid or a base You don't know Well you'd better watch this then. You don't want to be embarrassed at the water cooler. Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical" [YouTube Link](https://youtube.com/watch?v=NNXvokAcSuE) 2016-01-11T19:24Z 4.2M followers, 786.5K engagements "Chickenpox and Shingles (Varicella-Zoster Virus) Lots of kids get the chickenpox. I know I did I was about four years old. It was awful. But now we can learn all kinds of things about the virus called Varicella-Zoster virus which causes chickenpox and shingles. What is its structure and how does it infect cells What are the details regarding latency and recurring infection Let's get a closer look now. Script by Kellie Vinal Watch the whole Microbiology playlist: http://bit.ly/ProfDaveMicrobio General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials:" [YouTube Link](https://youtube.com/watch?v=3Zp5S8ODu9k) 2020-07-06T15:14Z 4.2M followers, 319.8K engagements "Explaining to Piers Morgan Why RFK Jr. Sucks Many people watched my video detailing what I would have said to Bret Weinstein the grifting fraud if he had the courage to debate me on Piers Morgan. But so many people asked me to upload my part of the segment as well so I decided to do that too. Fingers crossed I don't get a takedown request hope you like it My video dunking on Bret Weinstein: https://www.youtube.com/watchv=sVZfdO_yXrk My big RFK debunk: https://www.youtube.com/watchv=HqI_z1OcenQ Watch all my debunks: http://bit.ly/ProfDaveDebunk EMAIL ProfessorDaveExplains@gmail.com PATREON" [YouTube Link](https://youtube.com/watch?v=CRIqXnhQMrw) 2025-09-28T14:00Z 4.2M followers, 725.4K engagements "Structure and Immune Function of the Lymphatic System With some basics out of the way we are ready to get a sense of the overall structure of the immune system. That will mean looking at the lymphatic system. We already looked at this system in the context of its involvement in the circulatory system in our study of human anatomy and physiology. But we did not examine its immune function and this will be critical to our understanding of immunology so let's get a closer look now. Get ready to learn about lymph nodes the spleen the thymus mucosa-associated lymphoid tissue and more Script by" [YouTube Link](https://youtube.com/watch?v=DZX5AGST8qE) 2021-03-22T16:04Z 4.2M followers, 257.8K engagements "Choosing Between SN1/SN2/E1/E2 Mechanisms This is it This is what you've been freaking out about in class How the hell do you choose the mechanism that's gonna happen Is it SN2 SN1 E2 or E1 Woe is you what will you do. Why not listen to Professor Dave He's got the hottest chemistry tips in town. That cute boy or girl in class will be so impressed when you apply what you've learned here and have all the answers at the next lecture. Don't worry I won't tell. But you should I need the promo. Watch the whole Organic Chemistry playlist: http://bit.ly/ProfDaveOrgChem General Chemistry Tutorials:" [YouTube Link](https://youtube.com/watch?v=IOViLLuDMTs) 2015-01-05T01:31Z 4.2M followers, 1.4M engagements "Logarithms Part 3: Properties of Logs Expanding Logarithmic Expressions Almost done with logarithms It's a hefty topic so we have to round out the trilogy. We will definitely need to know how to manipulate logarithmic expressions whether expanding or condensing them and to do that we have to know about the properties of logarithms. So let's learn those now Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem" [YouTube Link](https://youtube.com/watch?v=MSTSBW8LPRM) 2017-12-05T13:40Z 4.2M followers, 133.2K engagements "Ugi Reaction We just learned about the Passerini reaction and now it's time to learn a similar one the Ugi reaction. This is another multi-component reaction that is excellent for generating chemical libraries. To the components of the Passerini reaction we add a primary amine. What's the product What's the mechanism Let's get into all of that now. Watch the whole Organic Chemistry playlist: http://bit.ly/ProfDaveOrgChem General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical" [YouTube Link](https://youtube.com/watch?v=NEILW-Pl2vY) 2021-12-16T16:20Z 4.2M followers, 22.7K engagements "Classical Greek Philosophy: Socrates and Plato When you think of philosophy the first figures you likely think of are the classical Greek philosophers Socrates Plato and Aristotle. It's time to dig into these enormous figures in the history of philosophy starting with Socrates and Plato. Who were they What sorts of views did they espouse Just how influential were they Let's get a closer look now Script by Luca Igansi Watch the whole Philosophy/Logic playlist: http://bit.ly/ProfDavePhilo Psychology Tutorials: http://bit.ly/ProfDavePsych Mathematics Tutorials: http://bit.ly/ProfDaveMath General" [YouTube Link](https://youtube.com/watch?v=NpV4DWL0bSw) 2023-04-14T14:30Z 4.2M followers, 253.9K engagements "Quantum Mechanics and the Schrdinger Equation Okay it's time to dig into quantum mechanics Don't worry we won't get into the math just yet for now we just want to understand what the math represents and come away with a new and improved view of the electron as both a circular standing wave and a cloud of probability density. Spooky Let's introduce the Schrdinger equation Watch the whole Modern Physics playlist: http://bit.ly/ProfDavePhysics2 Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Mathematics Tutorials: http://bit.ly/ProfDaveMaths General Chemistry Tutorials:" [YouTube Link](https://youtube.com/watch?v=O6g-7rUgrdg) 2017-05-02T19:22Z 4.2M followers, 1.5M engagements "Smallpox (Variola Virus) Smallpox is probably the biggest killer in human history and has had a significant impact on the expansion of human civilization. It is caused by the variola virus which is a poxvirus so what do those look like How do they spread and replicate Precisely how do the symptoms of smallpox progress This is the only disease to ever be completely eradicated from the face of the earth through vaccination which is one of the greatest achievements of mankind so let's get a closer look at this virus now. Script by Kellie Vinal Watch the whole Microbiology playlist:" [YouTube Link](https://youtube.com/watch?v=OBsBtuh-wAk) 2020-09-30T15:09Z 4.2M followers, 115.6K engagements "Conservation of Energy: Free Fall Springs and Pendulums The energy of a closed system is always conserved. This is an important law of physics But energy does change forms. What are all the forms how do they interchange and how does this apply to things like free fall and pendulums You gotta watch this clip to find out buddy Watch the whole Classical Physics playlist: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials: http://bit.ly/ProfDaveMaths General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials:" [YouTube Link](https://youtube.com/watch?v=OTK9JrKC6EY) 2017-03-13T15:56Z 4.2M followers, 776.8K engagements "Neuronal Pools and Neural Processing Ok so we now have a pretty solid understanding of neuronal structure as well as the action potential and synapses so we understand how information gets from one neuron to the next. But that's just the tip of the iceberg. How are neurons organized When we zoom out what patterns do small groups of neurons take on and what does that mean for the brain's ability to process information Let's take a look at neuronal pools now Watch the whole Biopsychology playlist: http://bit.ly/ProfDaveBiopsych General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic" [YouTube Link](https://youtube.com/watch?v=QJ8AW5pi2T4) 2019-09-25T16:15Z 4.2M followers, 93.9K engagements "Lewis Dot Structures Finally you'll understand all those weird pictures of molecules with the letters and the lines and the dots Those are lewis dot structures. Let's learn how to draw them. It's easier than you think. Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics" [YouTube Link](https://youtube.com/watch?v=Sk7W2VgbhOg) 2015-10-18T22:01Z 4.2M followers, 2.4M engagements "Steve Kirsch Strikes Back (And Soils Himself) Remember Steve Kirsch king douche of the anti-vaxxers Dan Wilson and I humiliated him in a live debate in New York and then I made follow-up videos on him and Pierre Kory to further expose their extreme fraudulence. When you're a lying piece of excrement who spreads anti-science propaganda that gets people killed you really don't deserve any mercy. After several months of licking his wounds and crying Steve finally decided to strike back. Brace yourself it's pathetic. Let's knock him back down to the ground where he belongs shall we Subscribe to" [YouTube Link](https://youtube.com/watch?v=ZqM40PR9mQg) 2026-01-24T15:01Z 4.2M followers, 190.9K engagements "Quantum Mysticism is Stupid (Deepak Chopra Spirit Science Actualized.org) This just in Quantum physics tells us that consciousness creates reality The physical realm is just a mental construct This means you can heal yourself with your mind you can manifest your desires and you can commune with the universe to achieve ultimate transcendence At least that's what some would have you believe. In actuality physics says nothing of the sort. This is all just a ridiculous narrative spewed by con men that has come to be known as quantum mysticism. Together let's identify its origin with figures like" [YouTube Link](https://youtube.com/watch?v=aQTWor_2nu4) 2021-03-19T14:28Z 4.2M followers, 2.6M engagements "Kinematics Part 3: Projectile Motion Things don't always move in one dimension they can also move in two dimensions. And three as well but slow down buster Let's do two dimensions first. You know like a cannonball. This is called projectile motion and it's super important in physics. Isn't this getting fun Watch the whole Classical Physics playlist: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials: http://bit.ly/ProfDaveMaths General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials:" [YouTube Link](https://youtube.com/watch?v=aY8z2qO44WA) 2017-02-02T22:25Z 4.2M followers, 2.5M engagements "Bohr Model of the Hydrogen Atom Why don't protons and electrons just slam into each other and explode Why do different elements emit light of different colors Niels Bohr knew why. And now you will too Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials:" [YouTube Link](https://youtube.com/watch?v=au2HCVn9IJI) 2015-08-26T06:52Z 4.2M followers, 998.9K engagements "Kinematics Part 1: Horizontal Motion Alright it's time to learn how mathematical equations govern the motion of all objects Kinematics that's the name of the game Ready Yes you are. Come on it'll be fun. We will start simple horizontal motion only. The math is really easy I promise. You're being a big baby just watch this Watch the whole Classical Physics playlist: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials: http://bit.ly/ProfDaveMaths General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials:" [YouTube Link](https://youtube.com/watch?v=hpWuZh6oTew) 2017-01-26T18:35Z 4.2M followers, 1.5M engagements "Related Rates in Calculus Now that we understand differentiation it's time to learn about all the amazing things we can do with it First up is related rates. Sometimes the rates at which two parameters change are related to one another by some equation. With our newfound understanding of implicit differentiation it's not too hard to find this precise relationship so that we can do important scientific calculations. Check it out Watch the whole Calculus playlist: http://bit.ly/ProfDaveCalculus Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials:" [YouTube Link](https://youtube.com/watch?v=j6I3EXiKB2A) 2018-03-29T17:25Z 4.2M followers, 827.2K engagements "Newton's Law of Universal Gravitation You thought we were all done with Newton didn't you You figured that three laws are enough for any scientist. Well think again Newton was quite the champ and his work with gravity was revolutionary. I mean the guy invented calculus so that he could do his work on gravity. So when he INVENTED CALCULUS he did it just so that math could exist that was complicated enough to do stuff that was more important than inventing calculus. Think about that for a while. Then watch this. Then think about it again. See more NASA footage at https://nssdc.gsfc.nasa.gov" [YouTube Link](https://youtube.com/watch?v=kxkFaBG6a-A) 2017-03-20T15:06Z 4.2M followers, 505.8K engagements "Avi Loeb is a Fraud Part 2: 3I/ATLAS Shrugged A few months ago I exposed Harvard astrophysicist Avi Loeb as a grifting fraud whose entire "scientific output" over the past decade or so has been limited to unpublished preprints lying about astronomical phenomena that he then blasts to the media to garner fame and sell shitty books full of lies. He's completed two rounds of this behavior first with exocomet 'Oumuamua which he pretended was a spaceship and then with a meteor that landed in the Pacific Ocean which he also pretended was a spaceship while he pretended to have retrieved fragments of" [YouTube Link](https://youtube.com/watch?v=lf9oBlkQQCo) 2025-11-20T15:01Z 4.2M followers, 272.4K engagements "Introduction to Pharmacology What are drugs What do they do How do they do what they do These questions are part of the field of pharmacology and over this series we will learn all about a wide variety of different drugs that have clinical use. This will require a lot of prerequisite knowledge in other fields so make sure to check out some of my other playlists as well but when you're ready let's dive into the world of drugs Watch the whole Pharmacology playlist: http://bit.ly/ProfDavePharma General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials:" [YouTube Link](https://youtube.com/watch?v=r95HUvHa4VM) 2020-02-11T17:50Z 4.2M followers, 439K engagements "Introduction to Calculus: The Greeks Newton and Leibniz You've been dreading this for a long time but there's no getting around it Once we wrap up algebra and trigonometry it's time to start learning calculus. Don't worry it's not as bad as you've heard We just have to learn a couple of new operations and algorithms but we've done that so many times before Before we dive into all that let's learn a little bit about what calculus is and why it came about. Watch the whole Calculus playlist: http://bit.ly/ProfDaveCalculus Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical" [YouTube Link](https://youtube.com/watch?v=rBVi_9qAKTU) 2018-02-19T17:45Z 4.2M followers, 1.3M engagements "Viruses: Molecular Hijackers Most of us know about viruses and that they spread disease. But what is a virus exactly Is it alive How does it infect a host There's a lot to discuss here Take a look. Watch the whole Biology/Genetics playlist: http://bit.ly/ProfDaveBio General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Anatomy & Physiology Tutorials: http://bit.ly/ProfDaveAnatPhys Biopsychology Tutorials: http://bit.ly/ProfDaveBiopsych Microbiology/Infectious Diseases" [YouTube Link](https://youtube.com/watch?v=wUgEhfo_qxU) 2017-10-19T15:35Z 4.2M followers, 1.7M engagements "Reacting to a Crappy Creationism Infomercial While Drinking Use code professordave at https://incogni.com/professordave to get an exclusive 60% off. It's time for another reaction video This time we're looking at the most pathetic creationist infomercial you've ever seen. It has everything. Lying about fossils asking why there are still monkeys shitty books and DVDs to sell a studio audience full of sheep reacting to the applause sign I mean it's really good stuff. Come up with a drinking game and drink along with me at home Take a sip every time I facepalm I dunno you make it up. My" [YouTube Link](https://youtube.com/watch?v=xsEKgpWYSgs) 2025-08-12T14:01Z 4.2M followers, 329.8K engagements "Higher Derivatives and Their Applications When we take the derivative of a function we get another function. So what's to stop of us from taking the derivative of that function Nothing If we take the derivative of a derivative we get the second derivative. And it doesn't stop there. This sounds abstract but it has tremendous application in classical physics specifically kinematics. Watch the whole Calculus playlist: http://bit.ly/ProfDaveCalculus Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics" [YouTube Link](https://youtube.com/watch?v=zUDxgehxQqs) 2018-03-27T16:02Z 4.2M followers, 113.3K engagements "Work and Energy What's work Not that place you go to earn money. In physics it means something else. And what's energy Not like in the groovy sense. Actually energy is one of the most improperly used words in the English language. Let physics define these words for you Watch the whole Classical Physics playlist: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials: http://bit.ly/ProfDaveMaths General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials:" [YouTube Link](https://youtube.com/watch?v=zVRH9d5PW8g) 2017-03-06T16:23Z 4.2M followers, 1.2M engagements "Introduction to the History of Drugs A drug is a substance that when introduced to the body produces some non-nutritional physiological effect. This includes medicinal drugs as well as recreational drugs and they take many forms. Focusing predominately on medicinal drugs what is the history of our relationship with these substances How did the ancients attempt to cure disease How do we do it now How has this changed over the millennia This is a fascinating story that traces human thought from the Stone Age all the way to the modern pharmaceutical industry. Let's learn together about the" [YouTube Link](https://youtube.com/watch?v=Up_qu1lT_UA) 2020-07-13T14:55Z 4.2M followers, 138.5K engagements "Intermolecular Forces and Boiling Points Why do different liquids boil at different temperatures It has to do with how strongly the molecules interact with each other through intermolecular forces. Find out all the different ways and how to use them to make predictions about matter Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical" [YouTube Link](https://youtube.com/watch?v=08kGgrqaZXA) 2015-11-05T17:39Z 4.2M followers, 2.7M engagements "Introduction to Trigonometry: Angles and Radians Alright it's time to get into some more challenging math Trigonometry is a subject that many people find intimidating but once you understand some new ways to look at angles and some functions that pertain to them it's really not so bad First things first let's make sure we understand what a radian is and how to measure angles using them Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General Chemistry Tutorials:" [YouTube Link](https://youtube.com/watch?v=0GkmnPdD6jY) 2017-12-26T18:15Z 4.2M followers, 291.5K engagements "Theoretical Probability Permutations and Combinations What are the odds when you play the lottery When you bet on a horse race When you flip a coin That you'll have a good day today Some of these are simple questions. Some more difficult. But most events involve probabilities that can be assessed and quantified. Let's look at a few starting with easy ones and then trickier ones while defining permutations and combinations along the way Special thanks to Heather Ferris of Vegas Aces Visit her here: http://www.vegas-aces.com/ https://www.youtube.com/user/TheVegasAces Watch the whole Mathematics" [YouTube Link](https://youtube.com/watch?v=0ZsSRx0o0zE) 2017-12-20T16:02Z 4.2M followers, 143.6K engagements "Five Worst Arguments in Flat Earth Debate: Analysis With FTFE Many of you saw my brutal evisceration of flat earth con man David Weiss. Friend to the channel FTFE asked me to come on his show for a lengthy analysis of all the idiocy that came out of Weiss's mouth during that exchange and we decided to cut together a little highlights reel from that discussion complete with additional graphics just to really drive home how stupid Weiss is. Here are the five dumbest talking points he put forward. Enjoy Watch the original debate: https://www.youtube.com/watchv=he-7vs0BkLE View the uncut" [YouTube Link](https://youtube.com/watch?v=26UkTow1RRo) 2022-05-25T15:45Z 4.2M followers, 1.6M engagements "Vector Fields Divergence and Curl We know about vectors and we know about functions so we are ready to learn about vector fields. These are like functions that take in coordinates and give back vectors so there will be a vector associated with every single point in the field. There are two things we must be able to do with vector fields as well which involve the del operator and either the dot product or the cross product with the vector field. These give us the divergence and the curl of the vector field respectively. Let's learn all about these operations now. Script by Howard Whittle Watch" [YouTube Link](https://youtube.com/watch?v=2qxxd68fZng) 2019-09-18T16:20Z 4.2M followers, 298.6K engagements "Demolishing Anti-Vaccine Frauds in Live Debate (Steve Kirsch and Pierre Kory Exposed) Use code professordave at https://incogni.com/professordave to get an exclusive 60% off As part of Pangburn's Anti-RFK tour I traveled to New York City for a live debate against prominent anti-vaxxers and douchebags supreme Steve Kirsch and Pierre Kory. Given that they have profited off of human life nobody in the history of my channel deserves to be exposed more and I got to do it right to their dumb grifter faces. Aiding me in this endeavor was Dr. Dan Wilson of Debunk the Funk. Between the two of us these" [YouTube Link](https://youtube.com/watch?v=30W2w02n360) 2025-10-07T14:00Z 4.2M followers, 590K engagements "Lipids Part 2: Steroids Steroids have gotten a pretty bad rap In reality they're not just the big bad anabolic steroids. This class of molecules includes many vitamins as well as cholesterol. Cholesterol has also gotten a bad rap We need cholesterol for our cell membranes to be rigid enough to stay intact and for our bodies to build other important molecules. What I'm saying is that you should watch all of these tutorials and don't believe everything you hear around town about molecules Watch the whole Biochemistry playlist: http://bit.ly/ProfDaveBiochem General Chemistry Tutorials:" [YouTube Link](https://youtube.com/watch?v=3z4XNWCnY-I) 2016-09-02T16:04Z 4.2M followers, 288.7K engagements "Basis and Dimension Now we know about vector spaces so it's time to learn how to form something called a basis for that vector space. This is a set of linearly independent vectors that can be used as building blocks to make any other vector in the space. Let's take a closer look at this as well as the dimension of a vector space and what that means. Script by Howard Whittle Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General Chemistry Tutorials:" [YouTube Link](https://youtube.com/watch?v=4C9GKyfUQkc) 2019-04-24T15:51Z 4.2M followers, 782.8K engagements "Lord Jamar and David Weiss Bond Over Being Humiliated By Me Most of you saw me crap all over flat earther Lord Jamar on Godfrey's podcast a few weeks ago. I am pleased to report that it set the internet on fire sparking an outpouring of gratitude from the intellectual black community and the complete implosion of Jamar's entire identity. But instead of taking a step back and looking inward like a normal person would do he decided to have a public tantrum with some other flat earthers including David Weiss who I have also publicly humiliated. For three hours these intellectual toddlers spew" [YouTube Link](https://youtube.com/watch?v=4okBkJUlMiI) 2025-02-01T15:00Z 4.2M followers, 1M engagements "The Life and Death of Stars: White Dwarfs Supernovae Neutron Stars and Black Holes We've learned how stars form and we've gone over some different types of stars like main sequence stars red giants and white dwarfs. But a star will move between these categories over its lifetime. How does that happen exactly And what is leftover when a star dies A white dwarf A neutron star A black hole What are these objects Let's answer all of these questions and more by analyzing the life cycle of a few different star types Watch the whole Astronomy/Astrophysics playlist: http://bit.ly/ProfDaveAstronomy" [YouTube Link](https://youtube.com/watch?v=4xIQGbYur9Q) 2018-08-24T15:28Z 4.2M followers, 1.9M engagements "Peter McCullough Nicolas Hulscher and the Rise of Predatory Journals Use code professordave at https://incogni.com/professordave to get an exclusive 60% off. Of all the frauds out there spreading disinformation about vaccines and related topics few are as morally bankrupt as Peter McCullough and his crew. Once a real cardiologist he pivoted to grifting at the start of the pandemic and now spends all of his time cobbling together fake research fabricating apocalyptic dangers for vaccines that will terrify the public and drive them over to his supplement-peddling business the Wellness Company." [YouTube Link](https://youtube.com/watch?v=5FFQz3dBOWw) 2026-02-03T15:00Z 4.2M followers, 137.5K engagements "Color and Refraction What is color What is it that determines the color of an object And what the heck is refraction Good thing we just learned about electromagnetic radiation Especially the visible spectrum. Let's take a look. Watch the whole Classical Physics playlist: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials: http://bit.ly/ProfDaveMaths General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology" [YouTube Link](https://youtube.com/watch?v=5U1vOWjC4uA) 2017-04-10T15:15Z 4.2M followers, 322.1K engagements "Electrophilic Aromatic Substitution Electrophilic Aromatic Substitution is one thing that benzene does. The mechanisms are getting trickier no Don't worry practice makes perfect. From halogenation to Friedel-Crafts alkylation this is a handy family of reactions. Watch the whole Organic Chemistry playlist: http://bit.ly/ProfDaveOrgChem General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials:" [YouTube Link](https://youtube.com/watch?v=5VhwkoP3fsE) 2015-01-05T01:31Z 4.2M followers, 254.3K engagements "Taxonomy of Bacteria: Identification and Classification We've been looking at bacteria for a few centuries now so how do we categorize them We love to classify things and put them in groups so how does that work for bacteria Well let's learn about Gram-staining antigens other phenotypic and genotypic properties and we will be well on our way to understanding this process Script by Kellie Vinal Watch the whole Microbiology playlist: http://bit.ly/ProfDaveMicrobio General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry" [YouTube Link](https://youtube.com/watch?v=8IJRzcPC9wg) 2019-12-02T17:51Z 4.2M followers, 551.9K engagements "Joints: Structure and Types of Motion We've learned about bones and the skeletal system but bones are so hard so why are our bodies so bendy and flexible The answer is joints Joints let our bodies move in all the way they do and they are many different types so let's check out their structures now. Watch the whole Anatomy & Physiology playlist: http://bit.ly/ProfDaveAnatPhys General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology/Genetics Tutorials:" [YouTube Link](https://youtube.com/watch?v=8hqyQIyenxA) 2019-01-23T16:46Z 4.2M followers, 1.2M engagements "Aldol Condensation It's time for enolate chemistry Protons alpha to a carbonyl are so sassy. That's what allows for Aldol Condensation to occur. Watch the whole Organic Chemistry playlist: http://bit.ly/ProfDaveOrgChem General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials: http://bit.ly/ProfDaveMath EMAIL ProfessorDaveExplains@gmail.com PATREON" [YouTube Link](https://youtube.com/watch?v=8izryaOv4Jc) 2015-01-05T01:31Z 4.2M followers, 320.6K engagements "Trump is a Maniac Who Will Try to Become a Dictator Trump will not back down in [----]. He will either cancel the elections entirely and install himself as a dictator or he will insist that he can run again even though it violates the constitution and then rig the election to stay in power. Let's be prepared for this certainty. Watch all my debunks/debates/discussions: http://bit.ly/ProfDaveDebunk EMAIL ProfessorDaveExplains@gmail.com PATREON http://patreon.com/ProfessorDaveExplains Check out "Is This Wi-Fi Organic" my book on disarming pseudoscience Amazon: https://amzn.to/2HtNpVH Bookshop:" [YouTube Link](https://youtube.com/watch?v=8p2gXBZazF0) 2026-02-07T21:00Z 4.2M followers, 46.1K engagements "Introduction to Ecology We've learned a lot about living organisms on this channel but now it's time to broaden our scope quite a bit. How do living organisms interact with each other and their physical environments What is the nature of the biosphere The answers to these questions require a study of ecology so let's dive right in Script by Ulyana Horodyskyj Watch the whole Ecology playlist: http://bit.ly/ProfDaveEcology Biology Tutorials: http://bit.ly/ProfDaveBio Anatomy & Physiology Tutorials: http://bit.ly/ProfDaveAnatPhys Microbiology Tutorials: http://bit.ly/ProfDaveMicrobio Botany" [YouTube Link](https://youtube.com/watch?v=9dAcEBXAFoo) 2023-04-24T14:30Z 4.2M followers, 198.2K engagements "DNA Replication: Copying the Molecule of Life Your DNA needs to be in every cell in your body so what happens when cells divide How does each new cell retain all of the genetic information The DNA is able to copy itself through a process called replication. Let's go through the finer points shall we Watch the whole Biochemistry playlist: http://bit.ly/ProfDaveBiochem General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern" [YouTube Link](https://youtube.com/watch?v=9kp9wiYMQUU) 2016-09-08T17:26Z 4.2M followers, 1.2M engagements "Jay Dyer is a Pointless Wiener Remember when I made a little reaction video making fun of some random creationists including a cringy after school special One of the other videos was made by some jerk named Jay Dyer. He didn't appreciate me mocking his profound stupidity so he threw a little tantrum in response. Big mistake. Wanna see just how stupid and pointless this wiener is Oh and racist and sexist to boot Let's mock him some more together. My reaction video he is responding to: https://www.youtube.com/watchv=g0TRjDBduLY Debunking James Tour: http://bit.ly/ProfDaveTour Debunking" [YouTube Link](https://youtube.com/watch?v=A3N77Kh2mvI) 2026-02-07T15:00Z 4.2M followers, 142.3K engagements "Partial Derivatives and the Gradient of a Function We've introduced the differential operator before during a few of our calculus lessons. But now we will be using this operator more and more over the prime symbol we are used to when describing differentiation as from now on we will frequently be differentiating with respect to a specific variable and we will have to keep track of which one it is. This leads us to the concept of partial derivatives. Although partial differential equations sound like extremely advanced math and they will get pretty hairy a little later in the series they're" [YouTube Link](https://youtube.com/watch?v=AXH9Xm6Rbfc) 2019-09-04T16:44Z 4.2M followers, 309.9K engagements "Reacting to iamLucid's Garbage Anti-Evolution Video What in the Sam Hill is this Dave is doing a reaction video How can this be Well a number of people had directed me to a really terrible anti-evolution apologetics video made by a channel named "iamLucid". Upon taking a quick glance I decided that it did not merit the effort of a full debunk but it dawned on me to try a reaction style format as I knew this would be way lower maintenance yet still offer an opportunity to expose and debunk. Thus the experiment begins If you like this video please let me know and I will do some more in the" [YouTube Link](https://youtube.com/watch?v=B7sgoKmz01A) 2023-03-13T14:30Z 4.2M followers, 2.3M engagements "Synthetic Biology and Materials Science Part 1: Biological Manufacturing We've discussed some aspects of biotechnology already but we have yet to discuss the promising field of synthetic biology. We are now able to manipulate biological organisms in ways that have technological applications and one of the most important of these applications has to do with materials science. We are now beginning to figure out how to engineer microorganisms that will manufacture important materials for us which circumvents traditional chemical manufacturing via petrochemicals. The economic environmental and" [YouTube Link](https://youtube.com/watch?v=BADaEC1sziM) 2021-04-02T15:36Z 4.2M followers, 43.8K engagements "The Formation of the Milky Way Galaxy Now that we've learned about the first ten billion years in the development of the universe it's time to get a little more specific to our own species. We live in a galaxy called The Milky Way. When did it form and how Where is it located in the universe Let's take a look Watch the whole Astronomy/Astrophysics playlist: http://bit.ly/ProfDaveAstronomy Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials: http://bit.ly/ProfDaveMaths General Chemistry Tutorials:" [YouTube Link](https://youtube.com/watch?v=BcjmoEspoRI) 2018-09-20T15:43Z 4.2M followers, 450.7K engagements "Ancient China Part 1: The Shang Dynasty (1600 [----] BCE) It's time to head to the far east to investigate the first civilizations of China. The first of these is referred to as the Shang dynasty. How was this developed How was it ruled What was its culture like Let's find out Script by Peter Wyetzner Watch the whole World History playlist: http://bit.ly/ProfDaveWorldHistory American History Tutorials: http://bit.ly/ProfDaveAmericanHistory Italian Tutorials: http://bit.ly/ProfDaveItalian Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials:" [YouTube Link](https://youtube.com/watch?v=C9N_Pmx2PSg) 2025-11-10T15:00Z 4.2M followers, 32.8K engagements "Sean Carroll Humiliates Eric Weinstein (Piers Morgan is Also Dumb) Eric Weinstein loves pretending to be a physicist. This is something he is able to do on podcasts because most people can't tell that he isn't one. But real physicists can see right through him. And today we get to watch one of these real physicists Sean Carroll tell Eric that he isn't a physicist at all right to his smug face over and over again. It's extremely satisfying. If you missed this Piers Morgan segment or even if you saw it but enjoy my commentary on such things this video is very much for you. Watch all of my" [YouTube Link](https://youtube.com/watch?v=DUr4Tb8uy-Q) 2025-05-29T14:00Z 4.2M followers, 1.5M engagements "E/Z Absolute Configuration of Alkenes It's EZ to assign E and Z absolute configuration to alkenes. Guess which convention we get to use Cahn-Ingold-Prelog is back Don't forget zee zame zide. You have to say it with a German accent or you lose points on the quiz. Watch the whole Organic Chemistry playlist: http://bit.ly/ProfDaveOrgChem General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials:" [YouTube Link](https://youtube.com/watch?v=DWyRymumUJ4) 2015-01-05T01:31Z 4.2M followers, 288.6K engagements "History of the Earth Part 2: Phanerozoic Eon Paleozoic Era We just cruised through the Hadean Archean and Proterozoic eons. That brings us all the way to the Phanerozoic eon which is the one we are still living in today. This is split up into the Paleozoic Mesozoic and Cenozoic eras so let's hit these eras one at a time since so much happened in each one. First up the Paleozoic era Script by Jared Matteucci Watch the whole Geology playlist: http://bit.ly/ProfDaveGeo Mathematics Tutorials: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 General Chemistry" [YouTube Link](https://youtube.com/watch?v=DkRs6pPJ2k4) 2022-03-28T16:15Z 4.2M followers, 208.6K engagements "Dan Richards is Still a Butthurt Clown Remember how I've promised to ruin the pseudoarcheology cult I started with Graham Hancock then I moved on to Dan Richards and Jimmy Corsetti and it's time for a few other targets. But first we have to hit Dan Richards one more time. He's big mad about being exposed as a pathetic loser and fraud in front of millions of people so he decided to mouth off about me again so it's a great opportunity to dunk on his dumb unkempt face while also teaching some important information about the history of science. Let's all point and laugh The Great Big" [YouTube Link](https://youtube.com/watch?v=EAN580RnMIY) 2026-02-09T15:00Z 4.2M followers, 141.6K engagements "Unicellular Life Part 1: Bacteria Finally After talking about atoms and molecules in chemistry big molecules in biochemistry and all the parts of the cell in this biology series we are finally ready to look at entire living organisms But we have to start with the simplest ones on the planet and that is undoubtedly bacteria. We went over many aspects of bacterial structure when we talked about prokaryotic cells but now let's learn about the types of bacteria and some of the things that they do. Watch the whole Biology/Genetics playlist: http://bit.ly/ProfDaveBio General Chemistry Tutorials:" [YouTube Link](https://youtube.com/watch?v=EC-U6tv6Wf4) 2017-10-27T15:47Z 4.2M followers, 166.3K engagements "Accuracy and Precision for Data Collection In science we love data But what are the rules of data collection How accurate and how precise can we get with our data What do these words even mean Let's find out Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials:" [YouTube Link](https://youtube.com/watch?v=EeHtK5UYEMM) 2017-06-27T16:45Z 4.2M followers, 173.4K engagements "Protein Structure Everyone has heard of proteins. What are they on the molecular level They're polymers of amino acids of course. They make up most of your body so we have to understand their structure very well Check this out to learn the hierarchy of protein structure so that we can later learn all about what different types of proteins can do. Watch the whole Biochemistry playlist: http://bit.ly/ProfDaveBiochem General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics" [YouTube Link](https://youtube.com/watch?v=EweuU2fEgjw) 2016-08-27T15:33Z 4.2M followers, 1.5M engagements "Special Relativity Part 3: Length Contraction Time dilation was pretty weird huh Well we aren't done yet Time is relative and so is space Different observers measure different lengths for objects and journeys. It's called length contraction and it's another important part of special relativity. Weird stuff Watch the whole Modern Physics playlist: http://bit.ly/ProfDavePhysics2 Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Mathematics Tutorials: http://bit.ly/ProfDaveMaths General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials:" [YouTube Link](https://youtube.com/watch?v=FPzGAksFCbs) 2017-05-18T15:00Z 4.2M followers, 441.3K engagements "Bret Weinstein and Tucker Carlson Have a Playdate Bret Weinstein and Tucker Carlson both suck a lot clearly. So what happens when they get together Does the suckiness compound exponentially It does in fact. From Tucker continuing to fumble 9th grade biology principles while Bret does absolutely nothing to set him straight to vomiting up super racist toddler takes on the Middle East let's point and laugh at these douchebags together so we can feel like the world isn't going up in flames for an hour. My video on Tucker Carlson: https://www.youtube.com/watchv=S1FpUw4D8UM Watch all of my content" [YouTube Link](https://youtube.com/watch?v=FuGiqCXKDlk) 2025-06-17T14:00Z 4.2M followers, 329.5K engagements "Greatest Common Factor (GCF) We learned a neat trick for how to quickly get the least common multiple of two numbers so let's find a similarly easy way to find the greatest common factor of two numbers. Again it involves prime factorization which of course everyone enjoys. Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials:" [YouTube Link](https://youtube.com/watch?v=GFmdqe4z9zU) 2017-08-23T15:19Z 4.2M followers, 241.1K engagements "Herpes Simplex Virus (HSV-1 and HSV-2) We are probably familiar with herpes as a sexually transmitted disease but we want to know as much as we can about this virus and the things it can do. What is the difference between HSV-1 and HSV-2 How does viral transmission work Let's get into the details. Script by Kellie Vinal Watch the whole Microbiology playlist: http://bit.ly/ProfDaveMicrobio General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology/Genetics Tutorials:" [YouTube Link](https://youtube.com/watch?v=GGfqkuxbIC0) 2020-06-22T18:28Z 4.2M followers, 197.6K engagements "Change of Basis We learned about how vectors can form a basis for a vector space and we can express any vector within a vector space as a linear combination of the basis vectors. But there can be more than one set of basis vectors. What if we want to express a vector using some other basis rather than the standard basis Well we can implement a change of basis so let's learn how to do that Script by Howard Whittle Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2" [YouTube Link](https://youtube.com/watch?v=HZa1RwFHgwU) 2019-05-01T16:41Z 4.2M followers, 359.6K engagements "Introduction to Biology: What is Life After we learn chemistry and biochemistry we are ready for biology In this course we extend our understanding of molecules to encompass an entire cell and everything inside it. This is a huge step in complexity and we will even talk about how the first cells may have come about. First just a little introduction to whet your whistle Watch the whole Biology/Genetics playlist: http://bit.ly/ProfDaveBio General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials:" [YouTube Link](https://youtube.com/watch?v=HaS0xNcAaWo) 2017-08-28T15:58Z 4.2M followers, 344K engagements "Thin Layer Chromatography (TLC) We know how to perform extraction which can separate compounds on the basis of differing solubilities. But what if they have the same solubility Well there is another technique that utilizes differences in polarity and it's called chromatography. There are many varieties of chromatography but the best way to introduce the concept will be to look at thin layer chromatography or TLC for short. Check it out Watch the whole Organic Chemistry playlist: http://bit.ly/ProfDaveOrgChem General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Biochemistry Tutorials:" [YouTube Link](https://youtube.com/watch?v=I4u_1ST7Ezk) 2019-03-01T17:34Z 4.2M followers, 474.9K engagements "Regulation of Gene Expression: Operons Epigenetics and Transcription Factors We learned about gene expression in biochemistry which is comprised of transcription and translation and referred to as the "central dogma" of molecular biology. But how is this process regulated How does a cell know which genes to express and when Well it's pretty complicated but let's just get our feet wet by looking at operons epigenetics and transcription factors Watch the whole Biology/Genetics playlist: http://bit.ly/ProfDaveBio General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry" [YouTube Link](https://youtube.com/watch?v=J9jhg90A7Lw) 2017-10-15T14:50Z 4.2M followers, 1.2M engagements "The Moment James Tour Lost the Origin of Life Debate This was one of my favorite moments from my debate with James Tour. I very obviously caught him in one of his insane lies he had no idea what to do so he panicked and blatantly pivoted to his pathetic chalkboard stunt and then just started shouting about how it was "his time" when it was open discussion. Isn't he the slimiest most pathetic jackass on the planet Watch all of my content humiliating James: http://bit.ly/ProfDaveTour Watch my other debunks/debates/discussions: http://bit.ly/ProfDaveDebunk EMAIL ProfessorDaveExplains@gmail.com" [YouTube Link](https://youtube.com/watch?v=JRB2bgVk60o) 2025-10-02T14:00Z 4.2M followers, 203.5K engagements "Flat Earthers are Having a Meltdown Over the Antarctica Trip and 24-Hour Sun Hey remember how that guy Will Duffy was offering flat earthers free trips to Antarctica to check for the 24-hour sun they all claimed doesn't exist for years And how most of them turned it down like pathetic little cowards Well a few of them agreed and the trip happened Spoiler alert: they saw the 24-hour sun for four days straight. How did the flat earthers on the trip take it And what about all the ones at home in their respective mom's basements They're not pleased about it as you can imagine. And they've" [YouTube Link](https://youtube.com/watch?v=JsETzrRr3is) 2025-01-17T15:00Z 4.2M followers, 2.8M engagements "CD8+ T Cells We just finished examining CD4+ T cells which play a central role in providing immune protection against pathogens. So what about CD8+ T cells what do those do You may have also heard of them referred to as cytotoxic T cells or CTLs what does that mean Let's find out Script by Niyati Vachharajani Select images provided by BioRender.com Watch the whole Immunology playlist: http://bit.ly/ProfDaveImmuno General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem" [YouTube Link](https://youtube.com/watch?v=KDnWla0k5us) 2024-10-04T14:00Z 4.2M followers, 17.2K engagements "Pierre Kory: The Ivermectin Fraud Whose Lies Killed Thousands After my live vaccine debate with Steve Kirsch and Pierre Kory I promised to even further expose them both with their own videos. With Steve already covered let's further expose Pierre Kory. This is the jerk that is responsible for the ivermectin craze during the pandemic. He claimed it was a miracle drug that would both cure and prevent COVID. Amazing Except it did neither of those things. At all. But thousands of people believed him some overdosed and died from ivermectin and thousands of people delayed legitimate care waiting" [YouTube Link](https://youtube.com/watch?v=KW_HPnTVuDk) 2025-11-14T15:00Z 4.2M followers, 206.1K engagements "Free Radical Halogenation How are alkanes halogenated Look and see. It has to do with free radicals of course. Watch the whole Organic Chemistry playlist: http://bit.ly/ProfDaveOrgChem General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials: http://bit.ly/ProfDaveMath EMAIL ProfessorDaveExplains@gmail.com PATREON http://patreon.com/ProfessorDaveExplains" [YouTube Link](https://youtube.com/watch?v=LCSOhClZNyI) 2015-01-05T01:31Z 4.2M followers, 167.1K engagements "Exposing Discovery Institute Part 11: Michael Egnor Today's episode exposing Discovery Institute frauds focuses on Michael Egnor He's a brain surgeon who has no idea how brains work. Mikey tells a lot of dumb lies about brains in order to pretend that souls exist and that science somehow supports their existence. Shall we debunk the shit out of his dumb lies about neuroscience and further expose this toxic propaganda mill in the process Of course we shall Watch me expose many more Discovery Institute IDiots: http://bit.ly/ProfDaveDI Watch my other debunks/debates/discussions:" [YouTube Link](https://youtube.com/watch?v=LxrlHYq39w8) 2025-10-21T14:00Z 4.2M followers, 215.8K engagements "Types of Plant Tissues We just learned about plant cells so now it's time to learn about how these different types of cells come together to form all the different tissues in the plant. There is ground tissue dermal tissue and vascular tissue. What do they all do What the heck is xylem and phloem Let's learn about these types of tissue now Script written by Sheryl Hosler and edited by Ryan Helcoski Watch the whole Botany playlist: http://bit.ly/ProfDaveBotany General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry" [YouTube Link](https://youtube.com/watch?v=M-qDzKG3RB0) 2020-12-03T10:05Z 4.2M followers, 457.9K engagements "Implicit Differentiation We are pretty good at taking derivatives now but we usually take derivatives of functions that are in terms of a single variable. What if we have x's and y's in there We need a new technique It's called implicit differentiation and it goes like this. Watch the whole Calculus playlist: http://bit.ly/ProfDaveCalculus Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic" [YouTube Link](https://youtube.com/watch?v=M0SMSWM2oZA) 2018-03-22T16:23Z 4.2M followers, 1.5M engagements "Elastic and Inelastic Collisions When you take a shot on a pool table or tackle someone in a football game you're participating in a collision. But the two events we just mentioned are totally different kinds of collisions But what are elastic collisions and what are inelastic collisions We have to learn the varieties and what they mean for momentum and energy. Watch the whole Classical Physics playlist: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials: http://bit.ly/ProfDaveMaths General Chemistry Tutorials:" [YouTube Link](https://youtube.com/watch?v=M2xnGcaaAi4) 2017-03-15T17:24Z 4.2M followers, 1.3M engagements "Calculating Volume by Cylindrical Shells We now know one method for finding the volume of a solid of revolution. But there are tricky examples where the normal method won't work like when both the inner and outer radius of a washer are being determined by the same function. Luckily there is another method we can use It involves cylindrical shells. What's that you ask Watch this Watch the whole Calculus playlist: http://bit.ly/ProfDaveCalculus Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials:" [YouTube Link](https://youtube.com/watch?v=MNU5DT-CDrc) 2018-06-04T14:48Z 4.2M followers, 356.4K engagements "Why Do People Like Free Markets We just learned about all the four main economic systems so it's time to dive a little deeper with each of them one at a time and we will start with free markets. Why do people like them What are the advantages and disadvantages of free markets Let's find out Script by Matt Beat: https://www.youtube.com/user/iammrbeat Animation by Ignacio Triana: https://www.youtube.com/c/Unraveled Watch the whole Economics playlist: http://bit.ly/ProfDaveEcon Mathematics Tutorials: http://bit.ly/ProfDaveMath American History Tutorials: http://bit.ly/ProfDaveAmericanHistory" [YouTube Link](https://youtube.com/watch?v=N5IBDHA--gk) 2022-05-02T15:29Z 4.2M followers, 94.8K engagements "Influenza (The Flu) We've all heard of the flu and probably know that it is associated with a particular virus. What is the structure of this virus How is it transmitted What steps do we have in place in terms of treatment and prevention The flu is actually no joke lots of people die from influenza every year so let's get a closer look now Script by Kellie Vinal Watch the whole Microbiology playlist: http://bit.ly/ProfDaveMicrobio General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials:" [YouTube Link](https://youtube.com/watch?v=N88Dzu5k8Pc) 2020-06-01T16:44Z 4.2M followers, 224.7K engagements "The Fundamental Theorem of Calculus: Redefining Integration So we know a lot about differentiation and the basics about what integration is so what do these two operations have to do with one another Everything And the discovery of their relationship is what launched modern calculus back in the time of Newton and pals. Check it out Watch the whole Calculus playlist: http://bit.ly/ProfDaveCalculus Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General Chemistry" [YouTube Link](https://youtube.com/watch?v=NLU9U8-wJrM) 2018-04-23T15:12Z 4.2M followers, 271.3K engagements "The Mechanism of Muscle Contraction: Sarcomeres Action Potential and the Neuromuscular Junction We've learned about the types of muscle including skeletal muscle and we know then when these muscles contract we are able to move our bodies around. But how exactly does this happen on the molecular level There is an astonishing amount of chemistry happening to make this work so let's dive into those sarcomeres and take a look at the neuromuscular junction Watch the whole Anatomy & Physiology playlist: http://bit.ly/ProfDaveAnatPhys General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem" [YouTube Link](https://youtube.com/watch?v=NfEJUPnqxk0) 2019-02-07T17:11Z 4.2M followers, 2M engagements "Biotechnology: Genetic Modification Cloning Stem Cells and Beyond In this biology playlist we've learned so much about DNA and living organisms Well so has mankind over the past century and oh what we have done with this knowledge It's pretty incredible when you stop and think about it. Let's go over some of the topics at the forefront of biotechnology as well as what's in store for us in the future. Watch the whole Biology/Genetics playlist: http://bit.ly/ProfDaveBio General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem" [YouTube Link](https://youtube.com/watch?v=OVf_ASEGuns) 2017-11-28T18:15Z 4.2M followers, 174.5K engagements "The Terrence Howard/Billy Carson Comedy Hour You know how Terrance Howard is a complete lunatic who spews hot gibberish to trick people into thinking he's smart And how Billy Carson is a grifting fraud who takes advantage of the black community to get rich from slinging snake oil and lies What could be funnier than watching these two asshats have an idiot contest Grab some popcorn and watch them jerk each other off with an endless string of buzzwords. Watch all of my videos on Terrence: http://bit.ly/ProfDaveTerry My first Billy video: https://www.youtube.com/watchv=kfjWxXIPTq8 Watch my other" [YouTube Link](https://youtube.com/watch?v=OgaHuT-YOaw) 2024-09-14T14:00Z 4.2M followers, 664.8K engagements "Rabies (Genus Lyssavirus) Most people have heard of rabies a word that instantly conjures up imagery of a rabid dog. This is an appropriate connotation as the rabies virus is commonly transmitted through the saliva of an animal. Rabies is as ancient as it is deadly so let's learn more about it now. Script by Kellie Vinal Watch the whole Microbiology playlist: http://bit.ly/ProfDaveMicrobio General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology/Genetics Tutorials:" [YouTube Link](https://youtube.com/watch?v=OvRxDQdAtGc) 2020-10-26T16:37Z 4.2M followers, 154.5K engagements "Matrix Multiplication and Associated Properties We covered matrix addition so how do we multiply two matrices together It's not as straightforward as you might guess so let's make sure we have this algorithm down Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials:" [YouTube Link](https://youtube.com/watch?v=P5GJJ02OG08) 2018-11-07T17:36Z 4.2M followers, 208.9K engagements "Viscosity Cohesive and Adhesive Forces Surface Tension and Capillary Action Liquids have some very interesting properties by virtue of the intermolecular forces they make both between molecules of the liquid and those between the liquid and some other material they are in contact with. Let's learn about viscosity cohesive and adhesive forces surface tension and capillary action. Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry" [YouTube Link](https://youtube.com/watch?v=P_jQ1B9UwpU) 2019-05-10T16:53Z 4.2M followers, 702.4K engagements "The Chemical Bond: Covalent vs. Ionic and Polar vs. Nonpolar Ionic Bond Covalent Bond James Bond so many bonds What dictates which kind of bond will form Electronegativity values of course. Let's go through each type and what they're all about. Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials:" [YouTube Link](https://youtube.com/watch?v=PoQjsnQmxok) 2015-09-08T17:05Z 4.2M followers, 2M engagements "Types of Colloids and Their Properties Earlier we learned that as far as mixtures go we can have homogeneous solutions or totally heterogeneous mixtures where components don't mix. But there are actually intermediary mixtures where substances mix to some limited degree. Let's learn about colloids as well as suspensions Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials:" [YouTube Link](https://youtube.com/watch?v=QAH-cCK1bS8) 2019-05-24T16:57Z 4.2M followers, 243.3K engagements "Covalent Bond Energy and Length We've already learned about different types of chemical bonds including covalent bonds. But now that we know about enthalpy and orbitals and some other concepts let's revisit the covalent bond and dig a little deeper. Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials:" [YouTube Link](https://youtube.com/watch?v=QFzZdcMnlK4) 2019-02-08T17:03Z 4.2M followers, 111K engagements "Dunking on Creationist Idiot Jimbob in Live Debate A couple days ago I made a video mocking possibly the dumbest and most pathetic creationist I've ever encountered. His name is Jay Dyer and he's a science illiterate philbro who didn't like it when I reacted to a video he did fumbling 9th grade level biology. So he made a video response where he basically just mocked me in a racist Jewish voice the whole time. Not exaggerating. His idiot friend Jimbob was in the video I initially reacted to and he didn't like me making fun of them so he demanded to be let onto a livestream I was participating" [YouTube Link](https://youtube.com/watch?v=RdmhbaPKo9U) 2026-02-10T15:00Z 4.2M followers, 147.7K engagements "Cellular Respiration Part 1: Glycolysis You need energy to do literally anything even just lay still and think. Where does this energy come from Well food right But how This is one of the most miraculous biological processes and it happens in our bodies every moment of every day. It's quite complicated so let's check it out in three sections. First up glycolysis Watch the whole Biochemistry playlist: http://bit.ly/ProfDaveBiochem General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biology Tutorials: http://bit.ly/ProfDaveBio" [YouTube Link](https://youtube.com/watch?v=SUPQVg1vO0Q) 2016-09-14T16:33Z 4.2M followers, 959.2K engagements "Types of Immune Cell Receptors We've talked a bit about how immune cell receptors operate but now it's time to get specific about the types of receptors that immune cells can express. That means we need to discuss antigen receptors costimulatory receptors inhibitory receptors cytokine receptors and chemokine receptors. Let's get a closer look at these now Script by Stephanie Melchor Select images provided by BioRender.com Watch the whole Immunology playlist: http://bit.ly/ProfDaveImmuno General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials:" [YouTube Link](https://youtube.com/watch?v=SYRTIDY8VOE) 2021-06-23T15:13Z 4.2M followers, 100.7K engagements "Ancient Egypt Part 1: The Old Kingdom (3000 [----] BCE) One of the most famous civilizations in antiquity is that of Ancient Egypt. Everyone knows about pharaohs and pyramids but there is so much to learn about the numerous dynasties that ruled this land and how this society evolved over several millennia. The history of Ancient Egypt is broken down into the Old Kingdom Middle Kingdom and New Kingdom so let's start off by examining the Old Kingdom. Script by Peter Wyetzner Watch the whole World History playlist: http://bit.ly/ProfDaveWorldHistory American History Tutorials:" [YouTube Link](https://youtube.com/watch?v=T3w_aKCbwmg) 2024-12-09T15:00Z 4.2M followers, 109.1K engagements "The Origin of Life on Earth You must have wondered about it before haven't you How did life begin on earth I mean the very first thing. The first unicellular organism billions of years ago. Is it even possible As it happens our understanding of chemistry biochemistry and biology has become so sophisticated over the years that we now have a pretty reasonable grasp as to how abiogenesis must have occurred. This is the spontaneous generation of life from non-living material. As incredible as it sounds there is a lot of science to discuss here so let's get into it Watch the whole Biology/Genetics" [YouTube Link](https://youtube.com/watch?v=TK1E3heBSiI) 2017-09-04T16:27Z 4.2M followers, 274.3K engagements "Clinical Psychology Part 1: Sigmund Freud and Psychoanalysis It's time to dive into clinical psychology To discuss this topic we must first discuss Sigmund Freud the father of psychoanalysis. The whole lying down on a couch and talking to a therapist thing That's Freud's. But he also had some bizarre ideas regarding psychosexual stages the Oedipus complex and more. Let's go through them all now Script by Caitlyn Finton Animation by Ignacio Triana: https://www.youtube.com/c/Unraveled Watch the whole Psychology playlist: http://bit.ly/ProfDavePsych General Chemistry Tutorials:" [YouTube Link](https://youtube.com/watch?v=Tj78hi1c9Bk) 2023-05-29T14:30Z 4.2M followers, 236.2K engagements "The Human Reproductive System Throughout this series we've learned all about the various systems of the human body. But how do humans make more humans As a child might ask where do babies come from Suppress the immature giggles if you can human reproduction is certainly absurd and hilarious but it's also a serious subject of scientific inquiry so let's look at the reproductive system just the same way we looked at all the others Watch the whole Anatomy & Physiology playlist: http://bit.ly/ProfDaveAnatPhys General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials:" [YouTube Link](https://youtube.com/watch?v=TucxiIB76bo) 2019-05-23T16:43Z 4.2M followers, 550K engagements "History of the Earth Part 3: Phanerozoic Eon Mesozoic Era We are working our way through the Phanerozoic eon and we got through the Paleozoic era. Next up the Mesozoic era In this era we see the rise and fall of the dinosaurs those beloved beasts. How did this come to pass What can we say about Earth's topography during this time Let's take a look Script by Jared Matteucci Watch the whole Geology playlist: http://bit.ly/ProfDaveGeo Mathematics Tutorials: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 General Chemistry Tutorials:" [YouTube Link](https://youtube.com/watch?v=UIxtzG9E_80) 2022-04-22T15:45Z 4.2M followers, 164.1K engagements "Receptors: Signal Transduction and Phosphorylation Cascade Did you know that cells can talk to one another One cell can send a molecule over to another cell and a receptor protein in the cell membrane will receive it just like molecular walkie-talkies. Check it out Watch the whole Biochemistry playlist: http://bit.ly/ProfDaveBiochem General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials:" [YouTube Link](https://youtube.com/watch?v=VatdTJka3_M) 2016-09-06T20:55Z 4.2M followers, 574.8K engagements "Solving Higher-Degree Polynomials by Synthetic Division and the Rational Roots Test By now we are experts at solving quadratics by a number of different strategies. But what about cubics And quartics And quintics Seems pretty daunting but believe it or not there is a reliable method to solve these higher degree polynomials as well. It's a little more time-consuming but it can be done Check it out. Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General" [YouTube Link](https://youtube.com/watch?v=WRkgMDVIETE) 2017-09-28T14:44Z 4.2M followers, 931.7K engagements "The Digestive System We eat food every day and most of us are aware that we do this so that our body can absorb nutrients that are inside the food which we need to stay alive. But how does this work What goes inside the body in between the time we put a snack into our mouths and then some of it comes out the other end Let's investigate the digestive system Watch the whole Anatomy & Physiology playlist: http://bit.ly/ProfDaveAnatPhys General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials:" [YouTube Link](https://youtube.com/watch?v=WWpRX7g_qvo) 2019-05-09T20:48Z 4.2M followers, 1.1M engagements "Solubility Product Constant (Ksp) We've learned that some ionic solids are totally water insoluble but in fact this is a slight oversimplification. Even such solids will dissolve to some minuscule degree and we can measure this and do calculations with it. Let's learn about solubility product constants Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials:" [YouTube Link](https://youtube.com/watch?v=WjiXbemBXkE) 2019-05-31T15:56Z 4.2M followers, 476.2K engagements "Gross Domestic Product (GDP) How do we measure the health of an economy The most common way is by looking at its gross domestic product or GDP. But what does that mean exactly Are there any limitations to this approach What kind of goods are counted towards GDP Let's dive into some specifics. Script by Matt Beat: https://www.youtube.com/user/iammrbeat Animation by Ignacio Triana: https://www.youtube.com/c/Unraveled Watch the whole Economics playlist: http://bit.ly/ProfDaveEcon Mathematics Tutorials: http://bit.ly/ProfDaveMath American History Tutorials: http://bit.ly/ProfDaveAmericanHistory" [YouTube Link](https://youtube.com/watch?v=Wy4TGV-tPd8) 2023-05-11T14:30Z 4.2M followers, 322K engagements "Flat Earther Austin Witsit Doesn't Know What Clockwise Means I've only debated a couple of flat earthers but Austin Witsit is the biggest douchenozzle among them. Here's a snippet where Austin brags about his complete lack of spatial reasoning skills including being unable to discern between clockwise and counterclockwise rotation. Enjoy Watch all my debunks/debates/discussions: http://bit.ly/ProfDaveDebunk EMAIL ProfessorDaveExplains@gmail.com PATREON http://patreon.com/ProfessorDaveExplains Check out "Is This Wi-Fi Organic" my book on disarming pseudoscience Amazon: https://amzn.to/2HtNpVH" [YouTube Link](https://youtube.com/watch?v=X5Wo1F6OcAg) 2025-11-13T21:00Z 4.2M followers, 259.2K engagements "AP Chemistry Review: Unit [--] (Equilibrium) Let me help you prepare for the AP Chemistry exam These review materials are the absolute fastest way to review all the most important concepts. Check out the unit summary videos then test your knowledge with tons of practice problems. Unit 7: Equilibrium - Introduction to Equilibrium - Direction of Reversible Reactions - Reaction Quotient and Equilibrium Constant - Calculating the Equilibrium Constant - Magnitude of the Equilibrium Constant - Properties of the Equilibrium Constant - Calculating Equilibrium Concentrations - Representations of" [YouTube Link](https://youtube.com/watch?v=XNm-kN737fo) 2024-08-19T15:25Z 4.2M followers, [----] engagements "Electric Potential Current and Resistance Whenever you plug something into an electrical socket don't you wonder what's going on Well you should as it's pretty neat. What is electricity made of How did we figure out how to harness this power Let's take a look at electric potential current and resistance. Watch the whole Classical Physics playlist: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials: http://bit.ly/ProfDaveMaths General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials:" [YouTube Link](https://youtube.com/watch?v=XWlZ9bfGIoI) 2017-04-12T21:09Z 4.2M followers, 539.9K engagements "Fact-Checking James Tours Embarrassing Debate Performance Any rational person who watched my debate with James Tour was immediately struck by Tour's totally insane behavior focused on chalkboard pageantry and shouting like a deranged lunatic for two full hours. But there is a lot more to discuss regarding the very numerous and very specific lies he told during the exchange regarding the scientific literature we were discussing. Not to mention the biased moderator and other key details which deserve to be addressed. So let's dive into a little fact-checking endeavor which comes with commentary" [YouTube Link](https://youtube.com/watch?v=YAm2W99Qm0o) 2023-06-06T14:30Z 4.2M followers, 970.6K engagements "Addition and Subtraction of Large Numbers We know how to add and subtract small numbers but what about big numbers Is it complicated No not really but there is a bit of an algorithm to learn. Check this out Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials:" [YouTube Link](https://youtube.com/watch?v=YFyOsvnr9ig) 2017-08-13T15:45Z 4.2M followers, 341.3K engagements "Complex Numbers: Operations Complex Conjugates and the Linear Factorization Theorem In getting through algebra we never talked about complex numbers but they are important so let's discuss them now These are numbers with a real component and an imaginary component so we first have to understand what i means in a mathematical context. It's the square root of negative one. Then we need to learn how to do arithmetic with these expressions and finally we can understand how we get answers in this form when using the quadratic formula but with a negative discriminant. Much to discuss check this out" [YouTube Link](https://youtube.com/watch?v=Yddjxj49C_M) 2017-12-11T17:03Z 4.2M followers, 381.5K engagements "A Brief History of Psychology: From Plato to Pavlov Before we dive into all the particulars of modern psychology and its research methods we need to get a little context. When was psychology first developed and by whom Was it scientific at that time or more philosophical Who was the first to coin the term "psychologist" as a profession There are so many figures to discuss Plato Aristotle Descartes Wilhelm Wundt Sigmund Freud and more Let's check out the history of psychology. Script by Caitlyn Finton Animation by Ignacio Triana: https://www.youtube.com/c/Unraveled Watch the whole Psychology" [YouTube Link](https://youtube.com/watch?v=_qqwq8EmTY4) 2021-11-15T15:56Z 4.2M followers, 364.9K engagements "Electron Microscopy (TEM and SEM) We've talked a lot about light microscopy but this technique has inherent limitations in resolution and magnification. The next paradigm in microscopy that emerged in the middle of the 20th century was electron microscopy. Because electrons have much shorter wavelengths than photons electron microscopy offers up to [----] times better resolution than light microscopy. This allowed us to visualize structures as small as individual proteins for the first time which revolutionized the field of biology. What are the types of electron microscopy and how do they work" [YouTube Link](https://youtube.com/watch?v=a0G7iyz4McM) 2021-02-03T16:45Z 4.2M followers, 411.3K engagements "Properties of Integrals and Evaluating Definite Integrals Now that we know that integration simply requires evaluating an antiderivative we don't have to look at rectangles anymore But integration can also be a very difficult technique. Let's start simple by learning some properties of integrals and getting some practice with evaluating simple definite integrals. Watch the whole Calculus playlist: http://bit.ly/ProfDaveCalculus Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials:" [YouTube Link](https://youtube.com/watch?v=b0RJkIBhfEM) 2018-04-25T15:58Z 4.2M followers, 258K engagements "Transcription and Translation: From DNA to Protein Ok so everyone knows that DNA is the genetic code but what does that mean How can some little molecule be a code that makes a single cell develop into a giraffe or a monkey or Tony Danza Within this clip lie the answers child It's all about transcription and translation. Watch the whole Biochemistry playlist: http://bit.ly/ProfDaveBiochem General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials:" [YouTube Link](https://youtube.com/watch?v=bKIpDtJdK8Q) 2016-09-09T18:10Z 4.2M followers, 4.7M engagements "Graphing Functions and Their Derivatives We know how to graph functions and we know how to take derivatives so let's graph some derivatives Many students find that this hurts their brain but it's just about practice Remember that the value of a function and the rate of change of that function at a particular point are completely unrelated A function may be positive but have a negative rate of change or vice versa. Let's learn how to graph derivatives intuitively and then some applications of this in physics Watch the whole Calculus playlist: http://bit.ly/ProfDaveCalculus Watch the whole" [YouTube Link](https://youtube.com/watch?v=dIY86WqvGjw) 2018-04-05T14:52Z 4.2M followers, 179.2K engagements "Limiting Reagents and Percent Yield Chemistry doesn't always work perfectly silly. Molecules are left over when one thing runs out Also we never get all of the products that we thought we might by doing the math. You gotta know about the limiting reagents and the percent yield Don't worry it's as easy as bologna sandwiches. Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology" [YouTube Link](https://youtube.com/watch?v=dodsvTfqWNc) 2015-07-13T13:40Z 4.2M followers, 670K engagements "Quantization of Energy Part 2: Photons Electrons and Wave-Particle Duality So Max Planck kicked things off but how does the story of modern physics continue With none other than your favorite scientist and mine Albert Einstein He did more than just stick his tongue out and have crazy hair. He elucidated the nature of the photoelectric effect back while working as a patent clerk in Switzerland. Must have been a boring job because Einstein changed the world with his wandering mind Watch the whole Modern Physics playlist: http://bit.ly/ProfDavePhysics2 Classical Physics Tutorials:" [YouTube Link](https://youtube.com/watch?v=eU6VqGIc-2Q) 2017-04-24T15:28Z 4.2M followers, 403K engagements "Types of Tissue Part 2: Connective Tissue We just learned about epithelial tissue so let's learn about a second type of tissue connective tissue. This is extremely abundant in the body with many different forms and performing many different functions. Even blood is a connective tissue Bet you didn't know that. Let's learn all about connective tissue now. Watch the whole Anatomy & Physiology playlist: http://bit.ly/ProfDaveAnatPhys General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials:" [YouTube Link](https://youtube.com/watch?v=ec0PT0UQ_zo) 2018-11-28T17:46Z 4.2M followers, 590.1K engagements "The Skeletal System Now that we know more about the structure of bones we are ready to see how they all come together to form the skeletal system. An adult has [---] bones. What are they How are they organized What do they do Let's go through all of these bones right now Watch the whole Anatomy & Physiology playlist: http://bit.ly/ProfDaveAnatPhys General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology/Genetics Tutorials: http://bit.ly/ProfDaveBio Biopsychology Tutorials:" [YouTube Link](https://youtube.com/watch?v=f-FF7Qigd3U) 2019-01-07T18:24Z 4.2M followers, 4.1M engagements "Lets All Get Past This Confusion About Trans People There has been a lot of talk about trans people lately with controversy surroundings comedians sports as well as the usual back and forth between liberals and conservatives. As a liberal the hateful and harmful rhetoric from the right upsets me but I have also been consistently disappointed with the ways that liberals approach this conversation failing to properly explain key scientific concepts to conservatives. I felt very strongly that I had something to add to the conversation and I hope that people on both sides can find value in this" [YouTube Link](https://youtube.com/watch?v=fpGqFUStcxc) 2022-06-06T15:30Z 4.2M followers, 1M engagements "Graphing Rational Functions and Their Asymptotes You might think we are all set with graphs but you're wrong We will learn about many other types of functions as well as how to graph them. First up is rational functions which are quotients of polynomials. How can we graph these We have to find their asymptotes. What's that Sounds sexy. Well it is kind of. Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem" [YouTube Link](https://youtube.com/watch?v=fy45qX8cUwQ) 2017-11-22T18:52Z 4.2M followers, 869.1K engagements "Kinetic Energy and Potential Energy You can put energy into an object. Wanna know how No you don't need a Harry Potter wand. Just lift it up above your head By doing so you bestow the object with more potential energy. Learn more about the energy of motion and the energy of location in this clip. Watch the whole Classical Physics playlist: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials: http://bit.ly/ProfDaveMaths General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem" [YouTube Link](https://youtube.com/watch?v=g7u6pIfUVy4) 2017-03-08T16:33Z 4.2M followers, 897.4K engagements "Population Ecology (Life Tables Age Structure Population Growth) With an understanding of individual organisms let's take a look at population ecology which looks at the dynamics of populations of organisms. How do populations grow How are they structured What is their geography There is a lot to discuss here Script by Ulyana Horodyskyj Watch the whole Ecology playlist: http://bit.ly/ProfDaveEcology Biology Tutorials: http://bit.ly/ProfDaveBio Anatomy & Physiology Tutorials: http://bit.ly/ProfDaveAnatPhys Microbiology Tutorials: http://bit.ly/ProfDaveMicrobio Botany Tutorials:" [YouTube Link](https://youtube.com/watch?v=gTYpVAfQNg8) 2024-01-22T15:00Z 4.2M followers, 85.1K engagements "Scarcity Trade-offs and Cost/Benefit Analysis A core concept we must discuss if we are to understand economics is scarcity. Our wants and needs are endless but the things we want and need are necessarily finite in nature. Therefore we can say that these things are scarce. They run out. If they didn't economics would not exist because economics is all about making choices based on scarcity. If we spend money on one thing there is necessarily a trade-off because we have less money to spend on something else. This is true for both rich and poor as no one has infinite wealth. When we make choices" [YouTube Link](https://youtube.com/watch?v=gg_qfPRd-mo) 2021-04-28T15:59Z 4.2M followers, 163.8K engagements "Reacting to Lord Jamar Still Whining About How I Humiliated Him Click here: https://boot.dev/promo=PROFESSORDAVE and use my code PROFESSORDAVE to get 25% off your first year of boot.dev. Earlier this year I humiliated a rapping flat earther named Lord Jamar lived on a podcast. Since then he's been completely obsessed with me refusing to admit that he's a complete buffoon who fell for the dumbest hoax in human history but instead doubling down on everything and venting about what a stupid shill I am to whomever will listen. So let's react to him doing that Humiliating Lord Jamar in live" [YouTube Link](https://youtube.com/watch?v=gr9XXVaPw3w) 2025-09-14T14:01Z 4.2M followers, 483.8K engagements "Types of Immune Cells Part 2: Myeloid and Lymphoid Lineages With the basic functions of immune cells covered we are now ready to go through all the different types of immune cells and talk a little bit about what they all do. Again each type will get its own tutorial later in the series but it's a good idea to cover them all up top for context. So let's get a look at the different myeloid cells and lymphoid cells like macrophages neutrophils dendritic cells and many more Script by Stephanie Melchor Watch the whole Immunology playlist: http://bit.ly/ProfDaveImmuno General Chemistry Tutorials:" [YouTube Link](https://youtube.com/watch?v=hCKk5pDXKuU) 2021-03-05T16:53Z 4.2M followers, 262.1K engagements "Professor Dave Humiliates Flat Earther David Weiss (DITRH Debunked Live) For months now hordes of idiots have been lurking in my comments sections aggressively insisting that I need to debate David Weiss because he's some kind of flat earth messiah who is undebunkable and I should cower in the face of his might. Of course I ignored them because he is a two-bit charlatan and who cares what idiots say but then a channel with almost 700k subscribers asked if I would debate Weiss on his channel and I figured it might be a good way to pick up a few subscribers and also humiliate a flat earth icon" [YouTube Link](https://youtube.com/watch?v=he-7vs0BkLE) 2022-04-08T14:53Z 4.2M followers, 6.9M engagements "The Periodic Table: Atomic Radius Ionization Energy and Electronegativity Why is the periodic table arranged the way it is There are specific reasons you know. Because of the way we organize the elements there are special patterns that emerge. And you know how Professor Dave feels about patterns. He likes them. Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials:" [YouTube Link](https://youtube.com/watch?v=hePb00CqvP0) 2015-09-03T15:44Z 4.2M followers, 5.1M engagements "Graphing Conic Sections Part 2: Ellipses The next conic section is like a circle but it's like someone stretched a circle out in a particular direction. It's the ellipse These are very important in astronomy as most celestial objects follow elliptical paths. Let's learn all about ellipses and how to graph them. Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials:" [YouTube Link](https://youtube.com/watch?v=iwRlllkqADw) 2017-11-14T17:15Z 4.2M followers, 210.9K engagements "Algebraic Word Problems Algebra brings us a new and interesting way to see how math can solve real-world problems We just have to learn how to construct equations that say something meaningful about a given situation and then solve them using the techniques we already know. Learn all about how to do this here Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials:" [YouTube Link](https://youtube.com/watch?v=jOJLfQq9ktw) 2017-09-06T15:26Z 4.2M followers, 268.6K engagements "Dalton's Law and Partial Pressures We know about the ideal gas laws like Boyle's and Charles's and so forth. Now let's look at one law that involves mixtures of gases. This is called Dalton's Law and to understand it we have to learn about the concept of partial pressures so let's take a look Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio" [YouTube Link](https://youtube.com/watch?v=jbmOcH1fFKs) 2018-11-09T17:26Z 4.2M followers, 297.5K engagements "Acid-Base Equilibria and Buffer Solutions Remember those pesky iceboxes Weak acids and bases establish equilibria so we have to do iceboxes to figure out things about them. But don't worry buffers are neat. Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials:" [YouTube Link](https://youtube.com/watch?v=jdmHjFp_35I) 2016-01-12T16:19Z 4.2M followers, 625.1K engagements "Inverse Matrices and Their Properties We learned about matrix multiplication so what about matrix division There is no such thing But we can multiply a matrix by its inverse which is kind of like multiplying a number by its reciprocal to cancel it out which with matrices will yield the identity matrix. So how do you find an inverse matrix Let's learn how Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem" [YouTube Link](https://youtube.com/watch?v=kWorj5BBy9k) 2019-01-14T18:11Z 4.2M followers, 828.5K engagements "Terrence Howard is Legitimately Insane At least a hundred of you asked for it so here it is. Terrence Howard has been acting like a complete lunatic for years now pretending that he has revolutionized physics chemistry mathematics engineering and virtually every other area of inquiry. Spoiler alert he hasn't. He's a science illiterate buffoon and delusional narcissist who spews gibberish on podcasts that only the most gullible people alive could fall for. Let's pick apart some his insane ramblings shall we Watch all of my videos on Terrence: http://bit.ly/ProfDaveTerry Watch my other" [YouTube Link](https://youtube.com/watch?v=lWAyfr3gxMA) 2024-05-24T14:00Z 4.2M followers, 4.1M engagements "Graphing Lines in Algebra: Understanding Slopes and Y-Intercepts Now that we are familiar with the coordinate plane it's time to learn more about lines as these are the simplest things to graph. Lines have slopes and they usually have intercepts so lets learn what these words mean Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry" [YouTube Link](https://youtube.com/watch?v=lz8zVJxRFX8) 2017-10-04T15:49Z 4.2M followers, 880.3K engagements "All Aboard the James Tour Damage Control Train James was not happy with how badly he was humiliated by his intellectual superiors at Harvard so he is back at it with some damage control Apart from pretending the Cambridge Round Table was a "debate" and that he somehow "won the debate" his tactic is now to accuse Lee Cronin of hype and plagiarism with the help of Hector Zenil a mediocre scientist with an axe to grind. So let's talk with Lee a bit so he can refute these accusations as well as talk about how Jim's "challenge" is completely idiotic. Then as a special treat we will hear from Jim's" [YouTube Link](https://youtube.com/watch?v=m4VwgFX1Uv4) 2024-02-09T15:00Z 4.2M followers, 419.1K engagements "Naming Ionic Compounds We have to know how to name ionic compounds. Not any name we want like Jeff or Larry there's rules for how to name them. And look at all these adorable polyatomic ions Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials:" [YouTube Link](https://youtube.com/watch?v=mKo72RnN37E) 2015-09-10T17:43Z 4.2M followers, 1.1M engagements "Neutralization Reactions We know about acids and bases and we know about acid-base reactions so what is a neutralization reaction Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials:" [YouTube Link](https://youtube.com/watch?v=n9wUdgxCLMQ) 2018-10-26T16:06Z 4.2M followers, 369.5K engagements "Sabine Hossenfelder Cant Stop Acting Like a Complete Fraud I've already made two videos about Sabine Hossenfelder's gradual decline into deception and charlatanry but her behavior has gotten so bad lately that it's time to make another one. This time after examining her latest pathetic stunt it's time to bring in some physicists to comment on the ridiculous things she's been spewing. Those would be Eluned Smith Aram Harrow and Tracy Slatyer all professors of physics at MIT. Most of you were already on board but if you Sabine fanboys wouldn't listen to me before maybe you'll listen to them. My" [YouTube Link](https://youtube.com/watch?v=nJjPH3TQif0) 2025-02-28T15:01Z 4.2M followers, 743.7K engagements "Valence Bond Theory Hybrid Orbitals and Molecular Orbital Theory Attention This video about molecular orbitals is much better: https://www.youtube.com/watchv=I2k61JMk71M Alright let's be real. Nobody understands molecular orbitals when they first take chemistry. You just pretend you do and then in your next course you learn them a little better. And then a little better than that. And five years later you sort of understand them. So don't get discouraged Just watch this for a head start and do your best. Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the" [YouTube Link](https://youtube.com/watch?v=nTujP4jCbsg) 2016-01-10T02:55Z 4.2M followers, 2.2M engagements "The Difference Between Fiscal and Monetary Policy Governments are typically concerned with curbing both unemployment and inflation and there are two ways they approach this fiscal policy and monetary policy. These are tools that can be used to speed or slow economic growth. What are they How do they work Let's check it out Script by Matt Beat: https://www.youtube.com/user/iammrbeat Animation by Ignacio Triana: https://www.youtube.com/c/Unraveled Watch the whole Economics playlist: http://bit.ly/ProfDaveEcon Mathematics Tutorials: http://bit.ly/ProfDaveMath American History Tutorials:" [YouTube Link](https://youtube.com/watch?v=o0Yt6buayZ4) 2022-12-12T15:30Z 4.2M followers, 215.6K engagements "Exposing Discovery Institute Part 6: Jonathan McLatchie It's time to expose another Discovery Institute charlatan This time we turn to bottom-tier errand boy Jonathan McLatchie a pointless tool who would normally be ignored but he wrote a series of rubbish Evolution News blog posts as damage control for my debunk of Michael Behe so let's humiliate him. The best part is at the end where he fabricated a twitter interaction with me called it a "debate" and published it as content. You've seen some pathetic losers in this series so far but this guy really is the bottom of the barrel. Enjoy PZ" [YouTube Link](https://youtube.com/watch?v=oz8q2g2uQDE) 2023-09-06T14:00Z 4.2M followers, 321.5K engagements "Human Papillomavirus (HPV) Human papillomavirus or HPV is a virus that many people are familiar with as it is unbelievably prevalent in the human population. But there are many strains that do different things in the body as they invade different types of tissues so let's learn more about the structure of this virus and precisely what it is capable of. Script by Kellie Vinal Watch the whole Microbiology playlist: http://bit.ly/ProfDaveMicrobio General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials:" [YouTube Link](https://youtube.com/watch?v=pyihsgc209Q) 2020-11-13T16:21Z 4.2M followers, 330.9K engagements "Optimization Problems in Calculus What good is calculus anyway what does it have to do with the real world Well a lot actually. Optimization is a perfect example If you want to figure out how to maximize your profits or minimize your costs or if you want to maximize an area or minimize a distance you are finding the maxima and minima of a function and that's doing calculus All we need to know is how to take derivatives and set them equal to zero so let's go make some money Watch the whole Calculus playlist: http://bit.ly/ProfDaveCalculus Watch the whole Mathematics playlist:" [YouTube Link](https://youtube.com/watch?v=q1U6AmIa_uQ) 2018-04-10T13:11Z 4.2M followers, 288K engagements "The Common Ion Effect We've learned a few applications of the solubility product so let's learn one more This is called the common ion effect and it can be a good way to influence the solubility of a particular ionic compound in solution or even promote precipitation. Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics" [YouTube Link](https://youtube.com/watch?v=qawipem0LwA) 2019-07-05T16:08Z 4.2M followers, 367.6K engagements "Linear First-Order Differential Equations We just got our feet wet with separable differential equations so now let's look at something slightly trickier. Solving linear first-order differential equations will require a little bit more effort involving something called an integrating factor. Let's see how this works with a few examples. Script by Lorcan Nicholls Watch the whole Differential Equations playlist: http://bit.ly/ProfDaveDiffeq Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials:" [YouTube Link](https://youtube.com/watch?v=rO31HNxBedg) 2025-03-19T14:01Z 4.2M followers, 87.5K engagements "Laplace Transforms Part 1: Solving Differential Equations There is another important tool when it comes to solving differential equations and that is the Laplace transform. This is an operator that we can apply to both sides of a differential equation in order to solve it in a fairly involved way. Let's get a closer look Script by Lorcan Nicholls Watch the whole Differential Equations playlist: http://bit.ly/ProfDaveDiffeq Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials:" [YouTube Link](https://youtube.com/watch?v=rrlBRs_etts) 2025-07-23T14:01Z 4.2M followers, 24.6K engagements "Multiplication of Large Numbers Have you ever met someone that can multiply big numbers in their head very fast Here's what most people don't realize. They aren't doing that thing from school in their head. They are using a much simpler approach that utilizes the distributive property. In this clip we will learn the classic pen-and-paper approach but also some easy ways to do mental math that will impress your friends. Check it out Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials:" [YouTube Link](https://youtube.com/watch?v=s1Ly3cX4yHc) 2017-08-15T15:55Z 4.2M followers, 213.4K engagements "Integration Using The Substitution Rule With the basics of integration down it's now time to learn about more complicated integration techniques We need special techniques because integration is not as straightforward an algorithm as differentiation. The first technique we will add to our bag of tricks is the substitution rule. Check it out Watch the whole Calculus playlist: http://bit.ly/ProfDaveCalculus Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General" [YouTube Link](https://youtube.com/watch?v=sci1pls4Lc8) 2018-05-07T16:08Z 4.2M followers, 729.4K engagements "Quantum Mechanics of the Electron We don't have to know too much physics to do chemistry but the electron the particle that makes all the chemistry happen is a quantum mechanical particle so we have to understand it just a little bit. Don't worry no math just conceptual weirdness followed by compelling monologue Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials:" [YouTube Link](https://youtube.com/watch?v=t8mMN2X5_Vw) 2015-08-26T17:39Z 4.2M followers, 348.2K engagements "Evaluating and Graphing Exponential Functions We know about functions where exponents are raised to different variables to produce quadratics cubics quartics and so forth. But what about when the variable itself is an exponent This is called an exponential function and they are important for modeling things like population growth and other real-world scenarios. Let's learn about them Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General Chemistry Tutorials:" [YouTube Link](https://youtube.com/watch?v=tAaDItpC8OI) 2017-11-29T16:59Z 4.2M followers, 257.7K engagements "The Earth is Definitely Not Flat Anti-science mentality is rampant in this day and age and one of the more peculiar aspects of this trend is the current fad that is the Flat Earth model. There exists a group of people who believe that against everything we have come to learn throughout the scientific revolution the world is actually flat and the center of the universe. That's not all there's a big cover up with NASA and all the governments like some real sci-fi stuff. Let's go through some of the talking points of this model and see if we can deconstruct it shall we Watch the whole" [YouTube Link](https://youtube.com/watch?v=tC5RalYWZ5Y) 2019-03-27T17:22Z 4.2M followers, 2.4M engagements "Subspaces and Span Now that we know what vector spaces are let's learn about subspaces. These are smaller spaces contained within a larger vector space that are themselves vector spaces. Script by Howard Whittle Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials:" [YouTube Link](https://youtube.com/watch?v=tM4TDL9Hj8U) 2019-03-26T15:59Z 4.2M followers, 564.2K engagements "Dark Matter and Dark Energy: The Frontier of Astronomy For a while now we've been discussing all of things we know about the universe. What about some of the things we don't know If we look to the current frontier of astronomy we find two mystifying concepts dark matter and dark energy. What are these things How do we know they exist Do we have any guesses as to what they are Find out here Watch the whole Astronomy/Astrophysics playlist: http://bit.ly/ProfDaveAstronomy Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2" [YouTube Link](https://youtube.com/watch?v=thxknsmN9yk) 2019-02-27T17:05Z 4.2M followers, 109.9K engagements "Conformational Analysis of Ethane and Butane - Newman Projections Hooray for molecular models Here we will examine the different conformations of ethane and butane and discuss their relative energies. Also Dave will show you how to draw Newman projections. Watch the whole Organic Chemistry playlist: http://bit.ly/ProfDaveOrgChem General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials:" [YouTube Link](https://youtube.com/watch?v=ua0_UNoashU) 2015-01-05T01:32Z 4.2M followers, 332.2K engagements "Image and Kernel Now that we've learned about linear transformations we can combine this with what we know about vector spaces to learn about the concepts of image and kernel. Let's get a closer look Script by Howard Whittle Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials:" [YouTube Link](https://youtube.com/watch?v=vyYrvhbDhW4) 2019-05-29T17:19Z 4.2M followers, 273.1K engagements "Relative Motion and Inertial Reference Frames Did you know that everything is moving Even you as you're sitting perfectly still because the earth is moving and the sun and the galaxy and so forth. For this reason it only makes sense to talk about the motion of some object relative to some other object just as Galileo told us. Watch this and see what I mean Watch the whole Classical Physics playlist: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials: http://bit.ly/ProfDaveMaths General Chemistry Tutorials:" [YouTube Link](https://youtube.com/watch?v=wD7C4V9smG4) 2017-02-10T18:54Z 4.2M followers, 915.2K engagements "Kinetics: Initial Rates and Integrated Rate Laws Who likes math Oh you don't Maybe skip this one on kinetics. Unless you have to answer this stuff for class. Then yeah watch this. Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2" [YouTube Link](https://youtube.com/watch?v=wYqQCojggyM) 2015-12-23T01:47Z 4.2M followers, 1.6M engagements "Nucleophiles Electrophiles Leaving Groups and the SN2 Reaction This is it The start of the very scary reaction mechanisms Take it easy chief. First we will define nucleophiles electrophiles and leaving groups. Then we will examine the mechanism transition state and stereospecificity of the SN2 reaction. Push those electrons Watch the whole Organic Chemistry playlist: http://bit.ly/ProfDaveOrgChem General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials:" [YouTube Link](https://youtube.com/watch?v=xoA1zMiCEB4) 2015-01-05T01:31Z 4.2M followers, 509.5K engagements "Newton's Third Law of Motion: Action and Reaction Are you tired of Newton's laws of motion yet Well lucky you this is the last one. And it's the most misunderstood as well People love making inappropriate metaphors with scientific principles unfortunately. Watch this to make sure you don't do the same Watch the whole Classical Physics playlist: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials: http://bit.ly/ProfDaveMaths General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials:" [YouTube Link](https://youtube.com/watch?v=y61_VPKH2B4) 2017-02-23T16:58Z 4.2M followers, 1M engagements "Order of Arithmetic Operations: PEMDAS Sometimes there are expressions that contain a number of different arithmetic operations. But how do we evaluate these Left to right Right to left Does it matter Someone make a decision Well someone did and we have a strict algorithm that tells us the order in which we evaluate arithmetic expressions. It's an acronym and acronyms are fun so this will be fun Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General Chemistry" [YouTube Link](https://youtube.com/watch?v=y_f7c3ztFrI) 2017-08-19T15:56Z 4.2M followers, 188.3K engagements "Heat Capacity Specific Heat and Calorimetry We can use coffee cups to do simple experiments to figure out how quickly different materials heat up and cool down. It's called calorimetry. Take a look Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials:" [YouTube Link](https://youtube.com/watch?v=yhNHJ7WdT8A) 2015-11-26T01:42Z 4.2M followers, 1.2M engagements "Neural Conduction Action Potential and Synaptic Transmission We have probably heard that neurons are the cells that transmit information around the body. But how does this work Is it actual electricity Like from the wall socket What is a synapse What happens there in between one neuron and the next This is a really big and really important topic so let's dive in. Watch the whole Biopsychology playlist: http://bit.ly/ProfDaveBiopsych General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials:" [YouTube Link](https://youtube.com/watch?v=zHJ3h675nNk) 2019-08-28T16:37Z 4.2M followers, 447.9K engagements "CD4+ T Cells Now that we have some basic information regarding T cell development as well as their activation through antigen processing and presentation let's take a look at the specific types of T cells and what they do once activated. First we will examine CD4+ T cells. These play a central role in providing immune protection against pathogens. They can differentiate into many subtypes so what are those and what do they do Let's find out Script by Niyati Vachharajani Select images provided by BioRender.com Watch the whole Immunology playlist: http://bit.ly/ProfDaveImmuno General Chemistry" [YouTube Link](https://youtube.com/watch?v=za-6Oa3m3Y4) 2024-09-04T14:00Z 4.2M followers, 23.1K engagements "The Brain and Language The way that humans communicate is very complex. We have an innate ability to understand and formulate language. As one might imagine the accompanying brain activity is also quite complex involving several different regions with very specific functions. Let's go in for a closer look Watch the whole Biopsychology playlist: http://bit.ly/ProfDaveBiopsych General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology/Genetics Tutorials:" [YouTube Link](https://youtube.com/watch?v=zj0yud4wv74) 2020-01-14T16:37Z 4.2M followers, 227.1K engagements "Metabolism and ATP How does your body break down the food you eat to generate the energy you need to get through your day What form of energy is this anyway Let's go over some of the basics of metabolic processes and introduce ATP the currency of cellular energy. Watch the whole Biochemistry playlist: http://bit.ly/ProfDaveBiochem General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials:" [YouTube Link](https://youtube.com/watch?v=-6VyMFQ7rRo) 2016-09-13T16:04Z 4.2M followers, 457.8K engagements "Graphing Lines in Standard Form (ax + by = c) Now that we have slope-intercept form under our belt let's learn the standard form for the equation of a line. This one makes it easy to find the intercepts and also graph the line very quickly so it has its advantages We will also learn how to convert between the two forms. Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials:" [YouTube Link](https://youtube.com/watch?v=-DnmoFnQUtk) 2017-10-06T15:28Z 4.2M followers, 258.4K engagements "Terrence Howard and Bill Maher Have an Idiot Contest Terrence Howard is all over the place recently After humiliating himself on the PBD podcast he decided to jump on Bill Maher's Club Random podcast and continue the insanity. Normally I would avoid doing another Terry video so soon after the last one but Bill Maher really sucks a lot so this was the perfect opportunity to make fun of him too. You'll be just as shocked as I was that Bill stays neck and neck with Terry in terms of sheer stupidity the entire show. Enjoy Watch all of my videos on Terrence: http://bit.ly/ProfDaveTerry Kyle" [YouTube Link](https://youtube.com/watch?v=-K6M6H9qvdI) 2025-05-08T14:00Z 4.2M followers, 542K engagements "Antitussives: Halting the Coughing Reflex (Codeine Dextromethorphan Tessalon) The next class of drugs is antitussives and these are intended to halt the cough reflex. Tussis or coughing is a complex physiological response to irritants in the airways and certain drugs seek to dampen this response when harmful to a patient. Let's discuss the pathways responsible for tussis and the types of drugs that can interact with these pathways and inhibit them such as codeine dextromethorphan and Tessalon. Script by Michael Keith Watch the whole Pharmacology playlist: http://bit.ly/ProfDavePharma General" [YouTube Link](https://youtube.com/watch?v=-z8fExTafPo) 2023-01-04T15:30Z 4.2M followers, 73.8K engagements "The Vector Dot Product We learned how to add and subtract vectors and we learned how to multiply vectors by scalars but how can we multiply two vectors together There are two ways to do this and one of them is called the dot product. Let's learn how to find the dot product of two vectors now Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem" [YouTube Link](https://youtube.com/watch?v=0iNrGpwZwog) 2018-09-12T14:49Z 4.2M followers, 1.2M engagements "Fluids Buoyancy and Archimedes' Principle Archimedes is not just the owl from the Sword in the Stone. Although that's a sweet movie if you haven't seen it. He was also an old Greek dude who figured out a bunch of physics way before other people did. Some of this was discovered at bath time so it has a lot to do with water but don't get all weird about it just listen to the old man in the tub. He's smarter than he looks. Watch the whole Classical Physics playlist: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials:" [YouTube Link](https://youtube.com/watch?v=16HDJNoXQII) 2017-03-22T16:30Z 4.2M followers, 817.9K engagements "Logarithms Part 1: Evaluation of Logs and Graphing Logarithmic Functions What are logs No not like the ones from trees silly We need to know about logarithms. They represent the inverse operation of exponentiation. How do they work How do we evaluate them How do we graph them Let's go through the basics now. Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials:" [YouTube Link](https://youtube.com/watch?v=1Yv4fEsGpvM) 2017-11-30T16:57Z 4.2M followers, 155.2K engagements "The Muscular System Now that we know about muscle tissue let's see how this is arranged to form the muscular system the incredible network of muscles that covers the skeletal system so that it can pull on bones and allow us to move around at will. There are hundreds of muscles so we won't cover them all but we will learn some basic ways of categorizing and naming them and take a look at a bunch of them too Watch the whole Anatomy & Physiology playlist: http://bit.ly/ProfDaveAnatPhys General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials:" [YouTube Link](https://youtube.com/watch?v=21bgO104QVU) 2019-02-14T16:18Z 4.2M followers, 1.4M engagements "Hess's Law and Heats of Formation How can we calculate the enthalpy change of a reaction without doing it There are two easy ways This is how we can make sure a reaction won't explode in our faces Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials:" [YouTube Link](https://youtube.com/watch?v=2q2u5sj4V00) 2015-11-23T15:24Z 4.2M followers, 938.5K engagements "Bones: Structure and Types We've got the skin covered so now let's take a look at bones These give structure to the body. Bone is a type of tissue but an actual complete bone is an organ because there is lots of stuff inside besides bone. What else is in there Find out here Watch the whole Anatomy & Physiology playlist: http://bit.ly/ProfDaveAnatPhys General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology/Genetics Tutorials: http://bit.ly/ProfDaveBio Biopsychology" [YouTube Link](https://youtube.com/watch?v=2vESqp8mL5I) 2018-12-21T19:29Z 4.2M followers, 1.2M engagements "Frictional Forces: Static and Kinetic Newton's first law tells us that an object in motion will remain in motion but we don't really see that on earth do we If you throw a ball or push a hockey puck these things do eventually stop. Why To answer this we must learn about static and kinetic friction Watch the whole Classical Physics playlist: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials: http://bit.ly/ProfDaveMaths General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem" [YouTube Link](https://youtube.com/watch?v=3EbUa5ZDybg) 2017-03-02T16:46Z 4.2M followers, 880.5K engagements "The Early Middle Ages: Charlemagne and His Successors Let's kick off our study of the Middle Ages by looking at Western Europe. The Roman Empire had splintered into two halves. In the east there was the Byzantine Empire but the west had split up into separate kingdoms rules by various Germanic tribes. Over time this morphed into the Holy Roman Empire based in modern day Germany. Charlemagne was the first ruler of this empire so let's learn about him and other associated figures. Script by Peter Wyetzner Watch the whole World History playlist: http://bit.ly/ProfDaveWorldHistory American" [YouTube Link](https://youtube.com/watch?v=3El_-eIJUkc) 2026-02-13T15:00Z 4.2M followers, [----] engagements "Angiotensin-Converting Enzyme Inhibitors (ACE Inhibitors) After covering some drugs that regulate pulmonary activity it's time to move on to cardiovascular function. How can certain drugs help keep the heart beating and blood pumping Let's examine this class of drugs starting with angiotensin-converting enzyme inhibitors or ACE inhibitors. These treat high blood pressure. How do they do it Let's find out Script by Michael Keith Watch the whole Pharmacology playlist: http://bit.ly/ProfDavePharma General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials:" [YouTube Link](https://youtube.com/watch?v=4NYVBtt0ioI) 2024-01-17T15:00Z 4.2M followers, 67.2K engagements "Types of Tissue Part 4: Nervous Tissue We've learned about epithelial tissue connective tissue and muscle tissue so now it's time to learn about the fourth and final type nervous tissue That means all the neurons that send signals around your body. These make up the nervous system which is very complicated so let's make sure we understand neurons before we dive into that Watch the whole Anatomy & Physiology playlist: http://bit.ly/ProfDaveAnatPhys General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials:" [YouTube Link](https://youtube.com/watch?v=4RS-3Ex04NU) 2019-02-21T16:56Z 4.2M followers, 921.9K engagements "Position/Velocity/Acceleration Part 1: Definitions If we are going to study the motion of objects we are going to have to learn about the concepts of position velocity and acceleration. More scalars and vectors Once we get this stuff out of the way we can really get cooking. Watch the whole Classical Physics playlist: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials: http://bit.ly/ProfDaveMaths General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry" [YouTube Link](https://youtube.com/watch?v=4dCrkp8qgLU) 2017-01-12T17:39Z 4.2M followers, 1.2M engagements "Wavefunction Properties Normalization and Expectation Values We are beginning to get a glimpse of quantum mechanical principles from a rigorous mathematical perspective. Now that we know how to use operators in conjunction with wavefunctions let's get a better sense of what wavefunctions actually are and how their superpositions can describe the parameters of a quantum particle. Along with this we will learn about bra-ket notation how to normalize wavefunctions and also calculate both inner products and expectation values all of which will help us get a better perspective on quantum systems." [YouTube Link](https://youtube.com/watch?v=5nyQqOHNFCM) 2020-08-12T15:33Z 4.2M followers, 188.4K engagements "Social Psychology Part 1: The Power of Situation and Framing Social psychology is an enormous field which studies how people's thoughts feelings and beliefs are constructed within the context of interactions with other members of society. Why do we act differently around different people How do we develop and maintain our belief systems What is confirmation bias What is social facilitation Let's dig into this hefty topic now Script by Caitlyn Finton Animation by Ignacio Triana: https://www.youtube.com/c/Unraveled Watch the whole Psychology playlist: http://bit.ly/ProfDavePsych General" [YouTube Link](https://youtube.com/watch?v=5sPTDmazgJM) 2022-05-31T15:21Z 4.2M followers, 134.1K engagements "Conductivity and Semiconductors Why do some substances conduct electricity while others do not And what is a semiconductor If we aim to learn about engineering and technology this will be a very important concept so let's go through the basics now Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials:" [YouTube Link](https://youtube.com/watch?v=5zz6LlDVRl0) 2019-08-23T16:21Z 4.2M followers, 243K engagements "The Easiest Way to Memorize the Trigonometric Unit Circle This is the thing that has kept you up at night all week That darn unit circle So many roots and fractions and pies how will you get it all in your head Actually it's super easy to memorize the unit circle if you know a few tricks so check this out and rest easy tonight Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials:" [YouTube Link](https://youtube.com/watch?v=75dMcyCUo2g) 2018-01-03T18:33Z 4.2M followers, 537K engagements "Italian Counting Numbers A very basic thing in any language is learning how to count. You will use the numbers from one through ten constantly When you tell time when you interact with people at the market or around town you name it. So these first few must be memorized But from there it becomes quite simple to build out any other number imaginable so let's hit all the basic number-related vocabulary right now Script by Patrizia Farina Professor of Italian at Western Connecticut State University and Purchase College. Watch the whole Italian playlist: http://bit.ly/ProfDaveItalian American" [YouTube Link](https://youtube.com/watch?v=7CrvkFg1Ro8) 2018-01-10T16:13Z 4.2M followers, 1.1M engagements "Destroying Flat Earth Without Using Science - Part 4: The Conspiracy It may seem like I've said all there is to say about the flat earth phenomenon that dumbest hoax on the internet but we haven't yet examined the conspiracy itself. What would have to be true for this scam to be pulled off Rather incredibly without making a single observation or knowing anything about science whatsoever even just the story of the con itself falls apart quite laughably upon the slightest bit of scrutiny. Let's check it out. Part [--] in this series: https://www.youtube.com/watchv=_bHqBy92iGM Part [--] in this" [YouTube Link](https://youtube.com/watch?v=7ae_XdFEQDw) 2020-12-11T19:11Z 4.2M followers, 2.2M engagements "Evaluating Integrals With Trigonometric Functions Now that we have the basics down regarding integration it's time to start looking at trickier functions and eventually more complex integrands. First we will see trig functions inside integrands all the time. How do we integrate these Well if we remember the derivatives of the trig functions it won't be too hard Watch the whole Calculus playlist: http://bit.ly/ProfDaveCalculus Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials:" [YouTube Link](https://youtube.com/watch?v=7bJXbDqi9FE) 2018-05-02T15:16Z 4.2M followers, 315.7K engagements "Calculating Ion Concentrations in Solution We know that concentration is typically expressed with molarity which is moles per liter. But how do we know how many moles of solute are present in solution when an ionic solid dissolves in water It's not so simple because these will dissociate into individual ions so there is some extra stoichiometry to do Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials:" [YouTube Link](https://youtube.com/watch?v=7fHA17DOrBg) 2018-10-19T15:50Z 4.2M followers, 216.2K engagements "Types of Tissue Part 3: Muscle Tissue With epithelial tissue and connective tissue down it's time to learn about the third type of tissue and that's muscle tissue. This makes up all the muscles in our bodies and it comes in three types. Those are skeletal muscle cardiac muscle and smooth muscle. Let's look at the similarities and differences between these types of muscle tissue now Watch the whole Anatomy & Physiology playlist: http://bit.ly/ProfDaveAnatPhys General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry" [YouTube Link](https://youtube.com/watch?v=7t-DGxG09l8) 2019-01-31T17:38Z 4.2M followers, 1M engagements "Hard/Soft Acid-Base Theory We certainly know about acids and bases and we know about the Lewis model of acidity and basicity. In transition metal complexes the metal centers are acting as Lewis acids and the ligands are acting as Lewis bases. But certain types of acids and bases interact best in this context. Hard acids interact best with hard bases and soft acids interact best with soft bases. What do we mean by hard and soft Watch this and find out Watch the whole Inorganic/Organometallic Chemistry playlist: http://bit.ly/ProfDaveInorganic General Chemistry Tutorials:" [YouTube Link](https://youtube.com/watch?v=81cyHI46zv8) 2022-12-23T15:30Z 4.2M followers, 69.7K engagements "Advanced Strategy for Integration in Calculus Our bag of tricks for integration is complete Now it's time to put all our knowledge to use and evaluating integrals without any context. What strategy should we use in each case Watch me work through them or pause the clip on each example and give them a try Remember we know how to use the substitution rule integration by parts and integration by trigonometric substitution. We may have to do other clever manipulations too. You can do it Watch the whole Calculus playlist: http://bit.ly/ProfDaveCalculus Watch the whole Mathematics playlist:" [YouTube Link](https://youtube.com/watch?v=8APOcBqbG-U) 2018-05-17T15:04Z 4.2M followers, 148.5K engagements "The Laws of Thermodynamics Entropy and Gibbs Free Energy We've all heard of the Laws of Thermodynamics but what are they really What the heck is entropy and what does it mean for the fate of the universe How does soap work So many questions answered in this clip Enjoy More thorough thermodynamics tutorials: https://www.youtube.com/watchv=S2hsaTO0bO8&index=28&t=99s&list=PLybg94GvOJ9HjfcQeJcNzLUFxa4m3i7FW Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials:" [YouTube Link](https://youtube.com/watch?v=8N1BxHgsoOw) 2015-12-16T17:26Z 4.2M followers, 3.1M engagements "The Endocrine System You've probably heard of glands and hormones especially since we learned a little about how hormones interact with receptors in the biochemistry series but what are they in the greater context of human anatomy and physiology Let's dive into the endocrine system and find out Watch the whole Anatomy & Physiology playlist: http://bit.ly/ProfDaveAnatPhys General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology/Genetics Tutorials: http://bit.ly/ProfDaveBio" [YouTube Link](https://youtube.com/watch?v=8TveCTps_Xw) 2019-03-21T16:22Z 4.2M followers, 963.3K engagements "History of Atomic Theory We all know that atoms exist. But we didn't always A lot of people contributed in different ways to help develop our current understanding of atomic structure starting all the way back in Ancient Greece. Grab some popcorn and let Professor Dave tell you the story Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio" [YouTube Link](https://youtube.com/watch?v=9B3DDY27ZtE) 2015-06-22T22:56Z 4.2M followers, 968.3K engagements "The Immune System: Innate Defenses and Adaptive Defenses There are so many critters out there bacteria and viruses that want to wreak havoc in our bodies. How do we defend ourselves against such tiny threats The immune system This is quite possibly the most profoundly remarkable aspect of the human body. It almost defies comprehension the resourcefulness and efficiency of this system. An in-depth analysis will require an entire separate immunology course which will come in the future let's just get our feet wet for the moment Watch the whole Anatomy & Physiology playlist:" [YouTube Link](https://youtube.com/watch?v=9_uTdCHp7vI) 2019-04-25T17:33Z 4.2M followers, 617.5K engagements "Must Scientists Do Science Communication Should scientists be expected to engage in science communication Not necessarily. They should be encouraged. But there are other ways they can be of assistance in the scicomm endeavor. Watch all my debunks/debates/discussions: http://bit.ly/ProfDaveDebunk EMAIL ProfessorDaveExplains@gmail.com PATREON http://patreon.com/ProfessorDaveExplains Check out "Is This Wi-Fi Organic" my book on disarming pseudoscience Amazon: https://amzn.to/2HtNpVH Bookshop: https://bit.ly/39cKADM Barnes and Noble: https://bit.ly/3pUjmrn science communication scicomm scientists" [YouTube Link](https://youtube.com/watch?v=A0sw39D0viY) 2026-02-12T21:00Z 4.2M followers, 14.3K engagements "Structure Of The Cell Membrane: Active and Passive Transport What is it that separates what's inside a cell from what's outside of a cell Why that's the cell membrane. What's it made out of How does it work How do molecules get in and out of the cell These are super-important concepts Let's take a look. Watch the whole Biochemistry playlist: http://bit.ly/ProfDaveBiochem General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1" [YouTube Link](https://youtube.com/watch?v=AcrqIxt8am8) 2016-09-05T20:24Z 4.2M followers, 871.5K engagements "Exposing Discovery Institute Part 2: Stephen Meyer Who loves exposing and humiliating charlatans Who loves pushing back against religious propaganda If you love both you are in the right place In this series I am exposing all of the creationist charlatans at the Discovery Institute. With Casey Luskin in the garbage can we move on to Stephen Meyer. He's one of the cofounders of the DI and one of the most frequently cited of these bozos due to his books full of lies. Though he tells many many many lies in this video I will focus on his lies regarding the fossil record and genetics. As you can" [YouTube Link](https://youtube.com/watch?v=Akv0TZI985U) 2022-05-13T14:34Z 4.2M followers, 1M engagements "Quantum Numbers Atomic Orbitals and Electron Configurations Orbitals Oh no. They're so weird. Don't worry nobody understands these in first-year chemistry. You just pretend to and then in second-year you learn them a little better the following year a little better and once you have a PhD you will know what they are. But let Professor Dave give you a head start Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials:" [YouTube Link](https://youtube.com/watch?v=Aoi4j8es4gQ) 2015-08-31T16:07Z 4.2M followers, 5.4M engagements "Russell Brand Sucks a Lot Russell Brand is a disgusting figure who has pivoted to the right and feigned conversion to Christianity to shield himself from countless accusations of sexual abuse. Let's mock him for a bit. Watch all my debunks/debates/discussions: http://bit.ly/ProfDaveDebunk EMAIL ProfessorDaveExplains@gmail.com PATREON http://patreon.com/ProfessorDaveExplains Check out "Is This Wi-Fi Organic" my book on disarming pseudoscience Amazon: https://amzn.to/2HtNpVH Bookshop: https://bit.ly/39cKADM Barnes and Noble: https://bit.ly/3pUjmrn russell brand conversion to christianity" [YouTube Link](https://youtube.com/watch?v=BIBfWwT2VlE) 2026-02-05T21:00Z 4.2M followers, 49.9K engagements "Chromosome Structure and Organization We've all seen pictures of chromosomes and we know that they contain DNA. But how do we get from the double helix of DNA to the X-looking shape of a chromosome Is it just DNA or are there other things in there How much DNA is in each chromosome Chromosomal structure is incredibly complicated but now that we've learned about DNA and proteins as well as Mendelian genetics for a little context we are finally ready to get a more sophisticated view of what's inside a chromosome. Watch the whole Biology/Genetics playlist: http://bit.ly/ProfDaveBio General" [YouTube Link](https://youtube.com/watch?v=BbA-pHyirzo) 2017-10-11T17:41Z 4.2M followers, 532.5K engagements Limited data mode. Full metrics available with subscription: lunarcrush.com/pricing
@ProfessorDaveExplains Professor Dave Explains
Professor Dave Explains posts on YouTube about science, what is, how to, what are 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 7.35% finance 7.35% technology brands 2.71% celebrities 2.51% travel destinations 1.74% stocks 1.55% social networks 0.77% currencies 0.58% cryptocurrencies 0.39% fashion brands 0.39%
Social topic influence science #2021, what is #1533, how to 8.9%, what are #314, in the 7.93%, we are #2090, theory #733, math #673, the first 4.64%, newton #117
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Top Social Posts
Top posts by engagements in the last [--] hours
"Acids and Bases pH and pOH We've all heard the terms acid and base. What do these mean Don't just tell me about pH silly. What structural detail makes a molecule an acid or a base You don't know Well you'd better watch this then. You don't want to be embarrassed at the water cooler. Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical"
YouTube Link 2016-01-11T19:24Z 4.2M followers, 786.5K engagements
"Chickenpox and Shingles (Varicella-Zoster Virus) Lots of kids get the chickenpox. I know I did I was about four years old. It was awful. But now we can learn all kinds of things about the virus called Varicella-Zoster virus which causes chickenpox and shingles. What is its structure and how does it infect cells What are the details regarding latency and recurring infection Let's get a closer look now. Script by Kellie Vinal Watch the whole Microbiology playlist: http://bit.ly/ProfDaveMicrobio General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials:"
YouTube Link 2020-07-06T15:14Z 4.2M followers, 319.8K engagements
"Explaining to Piers Morgan Why RFK Jr. Sucks Many people watched my video detailing what I would have said to Bret Weinstein the grifting fraud if he had the courage to debate me on Piers Morgan. But so many people asked me to upload my part of the segment as well so I decided to do that too. Fingers crossed I don't get a takedown request hope you like it My video dunking on Bret Weinstein: https://www.youtube.com/watchv=sVZfdO_yXrk My big RFK debunk: https://www.youtube.com/watchv=HqI_z1OcenQ Watch all my debunks: http://bit.ly/ProfDaveDebunk EMAIL ProfessorDaveExplains@gmail.com PATREON"
YouTube Link 2025-09-28T14:00Z 4.2M followers, 725.4K engagements
"Structure and Immune Function of the Lymphatic System With some basics out of the way we are ready to get a sense of the overall structure of the immune system. That will mean looking at the lymphatic system. We already looked at this system in the context of its involvement in the circulatory system in our study of human anatomy and physiology. But we did not examine its immune function and this will be critical to our understanding of immunology so let's get a closer look now. Get ready to learn about lymph nodes the spleen the thymus mucosa-associated lymphoid tissue and more Script by"
YouTube Link 2021-03-22T16:04Z 4.2M followers, 257.8K engagements
"Choosing Between SN1/SN2/E1/E2 Mechanisms This is it This is what you've been freaking out about in class How the hell do you choose the mechanism that's gonna happen Is it SN2 SN1 E2 or E1 Woe is you what will you do. Why not listen to Professor Dave He's got the hottest chemistry tips in town. That cute boy or girl in class will be so impressed when you apply what you've learned here and have all the answers at the next lecture. Don't worry I won't tell. But you should I need the promo. Watch the whole Organic Chemistry playlist: http://bit.ly/ProfDaveOrgChem General Chemistry Tutorials:"
YouTube Link 2015-01-05T01:31Z 4.2M followers, 1.4M engagements
"Logarithms Part 3: Properties of Logs Expanding Logarithmic Expressions Almost done with logarithms It's a hefty topic so we have to round out the trilogy. We will definitely need to know how to manipulate logarithmic expressions whether expanding or condensing them and to do that we have to know about the properties of logarithms. So let's learn those now Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem"
YouTube Link 2017-12-05T13:40Z 4.2M followers, 133.2K engagements
"Ugi Reaction We just learned about the Passerini reaction and now it's time to learn a similar one the Ugi reaction. This is another multi-component reaction that is excellent for generating chemical libraries. To the components of the Passerini reaction we add a primary amine. What's the product What's the mechanism Let's get into all of that now. Watch the whole Organic Chemistry playlist: http://bit.ly/ProfDaveOrgChem General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical"
YouTube Link 2021-12-16T16:20Z 4.2M followers, 22.7K engagements
"Classical Greek Philosophy: Socrates and Plato When you think of philosophy the first figures you likely think of are the classical Greek philosophers Socrates Plato and Aristotle. It's time to dig into these enormous figures in the history of philosophy starting with Socrates and Plato. Who were they What sorts of views did they espouse Just how influential were they Let's get a closer look now Script by Luca Igansi Watch the whole Philosophy/Logic playlist: http://bit.ly/ProfDavePhilo Psychology Tutorials: http://bit.ly/ProfDavePsych Mathematics Tutorials: http://bit.ly/ProfDaveMath General"
YouTube Link 2023-04-14T14:30Z 4.2M followers, 253.9K engagements
"Quantum Mechanics and the Schrdinger Equation Okay it's time to dig into quantum mechanics Don't worry we won't get into the math just yet for now we just want to understand what the math represents and come away with a new and improved view of the electron as both a circular standing wave and a cloud of probability density. Spooky Let's introduce the Schrdinger equation Watch the whole Modern Physics playlist: http://bit.ly/ProfDavePhysics2 Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Mathematics Tutorials: http://bit.ly/ProfDaveMaths General Chemistry Tutorials:"
YouTube Link 2017-05-02T19:22Z 4.2M followers, 1.5M engagements
"Smallpox (Variola Virus) Smallpox is probably the biggest killer in human history and has had a significant impact on the expansion of human civilization. It is caused by the variola virus which is a poxvirus so what do those look like How do they spread and replicate Precisely how do the symptoms of smallpox progress This is the only disease to ever be completely eradicated from the face of the earth through vaccination which is one of the greatest achievements of mankind so let's get a closer look at this virus now. Script by Kellie Vinal Watch the whole Microbiology playlist:"
YouTube Link 2020-09-30T15:09Z 4.2M followers, 115.6K engagements
"Conservation of Energy: Free Fall Springs and Pendulums The energy of a closed system is always conserved. This is an important law of physics But energy does change forms. What are all the forms how do they interchange and how does this apply to things like free fall and pendulums You gotta watch this clip to find out buddy Watch the whole Classical Physics playlist: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials: http://bit.ly/ProfDaveMaths General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials:"
YouTube Link 2017-03-13T15:56Z 4.2M followers, 776.8K engagements
"Neuronal Pools and Neural Processing Ok so we now have a pretty solid understanding of neuronal structure as well as the action potential and synapses so we understand how information gets from one neuron to the next. But that's just the tip of the iceberg. How are neurons organized When we zoom out what patterns do small groups of neurons take on and what does that mean for the brain's ability to process information Let's take a look at neuronal pools now Watch the whole Biopsychology playlist: http://bit.ly/ProfDaveBiopsych General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic"
YouTube Link 2019-09-25T16:15Z 4.2M followers, 93.9K engagements
"Lewis Dot Structures Finally you'll understand all those weird pictures of molecules with the letters and the lines and the dots Those are lewis dot structures. Let's learn how to draw them. It's easier than you think. Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics"
YouTube Link 2015-10-18T22:01Z 4.2M followers, 2.4M engagements
"Steve Kirsch Strikes Back (And Soils Himself) Remember Steve Kirsch king douche of the anti-vaxxers Dan Wilson and I humiliated him in a live debate in New York and then I made follow-up videos on him and Pierre Kory to further expose their extreme fraudulence. When you're a lying piece of excrement who spreads anti-science propaganda that gets people killed you really don't deserve any mercy. After several months of licking his wounds and crying Steve finally decided to strike back. Brace yourself it's pathetic. Let's knock him back down to the ground where he belongs shall we Subscribe to"
YouTube Link 2026-01-24T15:01Z 4.2M followers, 190.9K engagements
"Quantum Mysticism is Stupid (Deepak Chopra Spirit Science Actualized.org) This just in Quantum physics tells us that consciousness creates reality The physical realm is just a mental construct This means you can heal yourself with your mind you can manifest your desires and you can commune with the universe to achieve ultimate transcendence At least that's what some would have you believe. In actuality physics says nothing of the sort. This is all just a ridiculous narrative spewed by con men that has come to be known as quantum mysticism. Together let's identify its origin with figures like"
YouTube Link 2021-03-19T14:28Z 4.2M followers, 2.6M engagements
"Kinematics Part 3: Projectile Motion Things don't always move in one dimension they can also move in two dimensions. And three as well but slow down buster Let's do two dimensions first. You know like a cannonball. This is called projectile motion and it's super important in physics. Isn't this getting fun Watch the whole Classical Physics playlist: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials: http://bit.ly/ProfDaveMaths General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials:"
YouTube Link 2017-02-02T22:25Z 4.2M followers, 2.5M engagements
"Bohr Model of the Hydrogen Atom Why don't protons and electrons just slam into each other and explode Why do different elements emit light of different colors Niels Bohr knew why. And now you will too Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials:"
YouTube Link 2015-08-26T06:52Z 4.2M followers, 998.9K engagements
"Kinematics Part 1: Horizontal Motion Alright it's time to learn how mathematical equations govern the motion of all objects Kinematics that's the name of the game Ready Yes you are. Come on it'll be fun. We will start simple horizontal motion only. The math is really easy I promise. You're being a big baby just watch this Watch the whole Classical Physics playlist: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials: http://bit.ly/ProfDaveMaths General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials:"
YouTube Link 2017-01-26T18:35Z 4.2M followers, 1.5M engagements
"Related Rates in Calculus Now that we understand differentiation it's time to learn about all the amazing things we can do with it First up is related rates. Sometimes the rates at which two parameters change are related to one another by some equation. With our newfound understanding of implicit differentiation it's not too hard to find this precise relationship so that we can do important scientific calculations. Check it out Watch the whole Calculus playlist: http://bit.ly/ProfDaveCalculus Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials:"
YouTube Link 2018-03-29T17:25Z 4.2M followers, 827.2K engagements
"Newton's Law of Universal Gravitation You thought we were all done with Newton didn't you You figured that three laws are enough for any scientist. Well think again Newton was quite the champ and his work with gravity was revolutionary. I mean the guy invented calculus so that he could do his work on gravity. So when he INVENTED CALCULUS he did it just so that math could exist that was complicated enough to do stuff that was more important than inventing calculus. Think about that for a while. Then watch this. Then think about it again. See more NASA footage at https://nssdc.gsfc.nasa.gov"
YouTube Link 2017-03-20T15:06Z 4.2M followers, 505.8K engagements
"Avi Loeb is a Fraud Part 2: 3I/ATLAS Shrugged A few months ago I exposed Harvard astrophysicist Avi Loeb as a grifting fraud whose entire "scientific output" over the past decade or so has been limited to unpublished preprints lying about astronomical phenomena that he then blasts to the media to garner fame and sell shitty books full of lies. He's completed two rounds of this behavior first with exocomet 'Oumuamua which he pretended was a spaceship and then with a meteor that landed in the Pacific Ocean which he also pretended was a spaceship while he pretended to have retrieved fragments of"
YouTube Link 2025-11-20T15:01Z 4.2M followers, 272.4K engagements
"Introduction to Pharmacology What are drugs What do they do How do they do what they do These questions are part of the field of pharmacology and over this series we will learn all about a wide variety of different drugs that have clinical use. This will require a lot of prerequisite knowledge in other fields so make sure to check out some of my other playlists as well but when you're ready let's dive into the world of drugs Watch the whole Pharmacology playlist: http://bit.ly/ProfDavePharma General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials:"
YouTube Link 2020-02-11T17:50Z 4.2M followers, 439K engagements
"Introduction to Calculus: The Greeks Newton and Leibniz You've been dreading this for a long time but there's no getting around it Once we wrap up algebra and trigonometry it's time to start learning calculus. Don't worry it's not as bad as you've heard We just have to learn a couple of new operations and algorithms but we've done that so many times before Before we dive into all that let's learn a little bit about what calculus is and why it came about. Watch the whole Calculus playlist: http://bit.ly/ProfDaveCalculus Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical"
YouTube Link 2018-02-19T17:45Z 4.2M followers, 1.3M engagements
"Viruses: Molecular Hijackers Most of us know about viruses and that they spread disease. But what is a virus exactly Is it alive How does it infect a host There's a lot to discuss here Take a look. Watch the whole Biology/Genetics playlist: http://bit.ly/ProfDaveBio General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Anatomy & Physiology Tutorials: http://bit.ly/ProfDaveAnatPhys Biopsychology Tutorials: http://bit.ly/ProfDaveBiopsych Microbiology/Infectious Diseases"
YouTube Link 2017-10-19T15:35Z 4.2M followers, 1.7M engagements
"Reacting to a Crappy Creationism Infomercial While Drinking Use code professordave at https://incogni.com/professordave to get an exclusive 60% off. It's time for another reaction video This time we're looking at the most pathetic creationist infomercial you've ever seen. It has everything. Lying about fossils asking why there are still monkeys shitty books and DVDs to sell a studio audience full of sheep reacting to the applause sign I mean it's really good stuff. Come up with a drinking game and drink along with me at home Take a sip every time I facepalm I dunno you make it up. My"
YouTube Link 2025-08-12T14:01Z 4.2M followers, 329.8K engagements
"Higher Derivatives and Their Applications When we take the derivative of a function we get another function. So what's to stop of us from taking the derivative of that function Nothing If we take the derivative of a derivative we get the second derivative. And it doesn't stop there. This sounds abstract but it has tremendous application in classical physics specifically kinematics. Watch the whole Calculus playlist: http://bit.ly/ProfDaveCalculus Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics"
YouTube Link 2018-03-27T16:02Z 4.2M followers, 113.3K engagements
"Work and Energy What's work Not that place you go to earn money. In physics it means something else. And what's energy Not like in the groovy sense. Actually energy is one of the most improperly used words in the English language. Let physics define these words for you Watch the whole Classical Physics playlist: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials: http://bit.ly/ProfDaveMaths General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials:"
YouTube Link 2017-03-06T16:23Z 4.2M followers, 1.2M engagements
"Introduction to the History of Drugs A drug is a substance that when introduced to the body produces some non-nutritional physiological effect. This includes medicinal drugs as well as recreational drugs and they take many forms. Focusing predominately on medicinal drugs what is the history of our relationship with these substances How did the ancients attempt to cure disease How do we do it now How has this changed over the millennia This is a fascinating story that traces human thought from the Stone Age all the way to the modern pharmaceutical industry. Let's learn together about the"
YouTube Link 2020-07-13T14:55Z 4.2M followers, 138.5K engagements
"Intermolecular Forces and Boiling Points Why do different liquids boil at different temperatures It has to do with how strongly the molecules interact with each other through intermolecular forces. Find out all the different ways and how to use them to make predictions about matter Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical"
YouTube Link 2015-11-05T17:39Z 4.2M followers, 2.7M engagements
"Introduction to Trigonometry: Angles and Radians Alright it's time to get into some more challenging math Trigonometry is a subject that many people find intimidating but once you understand some new ways to look at angles and some functions that pertain to them it's really not so bad First things first let's make sure we understand what a radian is and how to measure angles using them Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General Chemistry Tutorials:"
YouTube Link 2017-12-26T18:15Z 4.2M followers, 291.5K engagements
"Theoretical Probability Permutations and Combinations What are the odds when you play the lottery When you bet on a horse race When you flip a coin That you'll have a good day today Some of these are simple questions. Some more difficult. But most events involve probabilities that can be assessed and quantified. Let's look at a few starting with easy ones and then trickier ones while defining permutations and combinations along the way Special thanks to Heather Ferris of Vegas Aces Visit her here: http://www.vegas-aces.com/ https://www.youtube.com/user/TheVegasAces Watch the whole Mathematics"
YouTube Link 2017-12-20T16:02Z 4.2M followers, 143.6K engagements
"Five Worst Arguments in Flat Earth Debate: Analysis With FTFE Many of you saw my brutal evisceration of flat earth con man David Weiss. Friend to the channel FTFE asked me to come on his show for a lengthy analysis of all the idiocy that came out of Weiss's mouth during that exchange and we decided to cut together a little highlights reel from that discussion complete with additional graphics just to really drive home how stupid Weiss is. Here are the five dumbest talking points he put forward. Enjoy Watch the original debate: https://www.youtube.com/watchv=he-7vs0BkLE View the uncut"
YouTube Link 2022-05-25T15:45Z 4.2M followers, 1.6M engagements
"Vector Fields Divergence and Curl We know about vectors and we know about functions so we are ready to learn about vector fields. These are like functions that take in coordinates and give back vectors so there will be a vector associated with every single point in the field. There are two things we must be able to do with vector fields as well which involve the del operator and either the dot product or the cross product with the vector field. These give us the divergence and the curl of the vector field respectively. Let's learn all about these operations now. Script by Howard Whittle Watch"
YouTube Link 2019-09-18T16:20Z 4.2M followers, 298.6K engagements
"Demolishing Anti-Vaccine Frauds in Live Debate (Steve Kirsch and Pierre Kory Exposed) Use code professordave at https://incogni.com/professordave to get an exclusive 60% off As part of Pangburn's Anti-RFK tour I traveled to New York City for a live debate against prominent anti-vaxxers and douchebags supreme Steve Kirsch and Pierre Kory. Given that they have profited off of human life nobody in the history of my channel deserves to be exposed more and I got to do it right to their dumb grifter faces. Aiding me in this endeavor was Dr. Dan Wilson of Debunk the Funk. Between the two of us these"
YouTube Link 2025-10-07T14:00Z 4.2M followers, 590K engagements
"Lipids Part 2: Steroids Steroids have gotten a pretty bad rap In reality they're not just the big bad anabolic steroids. This class of molecules includes many vitamins as well as cholesterol. Cholesterol has also gotten a bad rap We need cholesterol for our cell membranes to be rigid enough to stay intact and for our bodies to build other important molecules. What I'm saying is that you should watch all of these tutorials and don't believe everything you hear around town about molecules Watch the whole Biochemistry playlist: http://bit.ly/ProfDaveBiochem General Chemistry Tutorials:"
YouTube Link 2016-09-02T16:04Z 4.2M followers, 288.7K engagements
"Basis and Dimension Now we know about vector spaces so it's time to learn how to form something called a basis for that vector space. This is a set of linearly independent vectors that can be used as building blocks to make any other vector in the space. Let's take a closer look at this as well as the dimension of a vector space and what that means. Script by Howard Whittle Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General Chemistry Tutorials:"
YouTube Link 2019-04-24T15:51Z 4.2M followers, 782.8K engagements
"Lord Jamar and David Weiss Bond Over Being Humiliated By Me Most of you saw me crap all over flat earther Lord Jamar on Godfrey's podcast a few weeks ago. I am pleased to report that it set the internet on fire sparking an outpouring of gratitude from the intellectual black community and the complete implosion of Jamar's entire identity. But instead of taking a step back and looking inward like a normal person would do he decided to have a public tantrum with some other flat earthers including David Weiss who I have also publicly humiliated. For three hours these intellectual toddlers spew"
YouTube Link 2025-02-01T15:00Z 4.2M followers, 1M engagements
"The Life and Death of Stars: White Dwarfs Supernovae Neutron Stars and Black Holes We've learned how stars form and we've gone over some different types of stars like main sequence stars red giants and white dwarfs. But a star will move between these categories over its lifetime. How does that happen exactly And what is leftover when a star dies A white dwarf A neutron star A black hole What are these objects Let's answer all of these questions and more by analyzing the life cycle of a few different star types Watch the whole Astronomy/Astrophysics playlist: http://bit.ly/ProfDaveAstronomy"
YouTube Link 2018-08-24T15:28Z 4.2M followers, 1.9M engagements
"Peter McCullough Nicolas Hulscher and the Rise of Predatory Journals Use code professordave at https://incogni.com/professordave to get an exclusive 60% off. Of all the frauds out there spreading disinformation about vaccines and related topics few are as morally bankrupt as Peter McCullough and his crew. Once a real cardiologist he pivoted to grifting at the start of the pandemic and now spends all of his time cobbling together fake research fabricating apocalyptic dangers for vaccines that will terrify the public and drive them over to his supplement-peddling business the Wellness Company."
YouTube Link 2026-02-03T15:00Z 4.2M followers, 137.5K engagements
"Color and Refraction What is color What is it that determines the color of an object And what the heck is refraction Good thing we just learned about electromagnetic radiation Especially the visible spectrum. Let's take a look. Watch the whole Classical Physics playlist: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials: http://bit.ly/ProfDaveMaths General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology"
YouTube Link 2017-04-10T15:15Z 4.2M followers, 322.1K engagements
"Electrophilic Aromatic Substitution Electrophilic Aromatic Substitution is one thing that benzene does. The mechanisms are getting trickier no Don't worry practice makes perfect. From halogenation to Friedel-Crafts alkylation this is a handy family of reactions. Watch the whole Organic Chemistry playlist: http://bit.ly/ProfDaveOrgChem General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials:"
YouTube Link 2015-01-05T01:31Z 4.2M followers, 254.3K engagements
"Taxonomy of Bacteria: Identification and Classification We've been looking at bacteria for a few centuries now so how do we categorize them We love to classify things and put them in groups so how does that work for bacteria Well let's learn about Gram-staining antigens other phenotypic and genotypic properties and we will be well on our way to understanding this process Script by Kellie Vinal Watch the whole Microbiology playlist: http://bit.ly/ProfDaveMicrobio General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry"
YouTube Link 2019-12-02T17:51Z 4.2M followers, 551.9K engagements
"Joints: Structure and Types of Motion We've learned about bones and the skeletal system but bones are so hard so why are our bodies so bendy and flexible The answer is joints Joints let our bodies move in all the way they do and they are many different types so let's check out their structures now. Watch the whole Anatomy & Physiology playlist: http://bit.ly/ProfDaveAnatPhys General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology/Genetics Tutorials:"
YouTube Link 2019-01-23T16:46Z 4.2M followers, 1.2M engagements
"Aldol Condensation It's time for enolate chemistry Protons alpha to a carbonyl are so sassy. That's what allows for Aldol Condensation to occur. Watch the whole Organic Chemistry playlist: http://bit.ly/ProfDaveOrgChem General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials: http://bit.ly/ProfDaveMath EMAIL ProfessorDaveExplains@gmail.com PATREON"
YouTube Link 2015-01-05T01:31Z 4.2M followers, 320.6K engagements
"Trump is a Maniac Who Will Try to Become a Dictator Trump will not back down in [----]. He will either cancel the elections entirely and install himself as a dictator or he will insist that he can run again even though it violates the constitution and then rig the election to stay in power. Let's be prepared for this certainty. Watch all my debunks/debates/discussions: http://bit.ly/ProfDaveDebunk EMAIL ProfessorDaveExplains@gmail.com PATREON http://patreon.com/ProfessorDaveExplains Check out "Is This Wi-Fi Organic" my book on disarming pseudoscience Amazon: https://amzn.to/2HtNpVH Bookshop:"
YouTube Link 2026-02-07T21:00Z 4.2M followers, 46.1K engagements
"Introduction to Ecology We've learned a lot about living organisms on this channel but now it's time to broaden our scope quite a bit. How do living organisms interact with each other and their physical environments What is the nature of the biosphere The answers to these questions require a study of ecology so let's dive right in Script by Ulyana Horodyskyj Watch the whole Ecology playlist: http://bit.ly/ProfDaveEcology Biology Tutorials: http://bit.ly/ProfDaveBio Anatomy & Physiology Tutorials: http://bit.ly/ProfDaveAnatPhys Microbiology Tutorials: http://bit.ly/ProfDaveMicrobio Botany"
YouTube Link 2023-04-24T14:30Z 4.2M followers, 198.2K engagements
"DNA Replication: Copying the Molecule of Life Your DNA needs to be in every cell in your body so what happens when cells divide How does each new cell retain all of the genetic information The DNA is able to copy itself through a process called replication. Let's go through the finer points shall we Watch the whole Biochemistry playlist: http://bit.ly/ProfDaveBiochem General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern"
YouTube Link 2016-09-08T17:26Z 4.2M followers, 1.2M engagements
"Jay Dyer is a Pointless Wiener Remember when I made a little reaction video making fun of some random creationists including a cringy after school special One of the other videos was made by some jerk named Jay Dyer. He didn't appreciate me mocking his profound stupidity so he threw a little tantrum in response. Big mistake. Wanna see just how stupid and pointless this wiener is Oh and racist and sexist to boot Let's mock him some more together. My reaction video he is responding to: https://www.youtube.com/watchv=g0TRjDBduLY Debunking James Tour: http://bit.ly/ProfDaveTour Debunking"
YouTube Link 2026-02-07T15:00Z 4.2M followers, 142.3K engagements
"Partial Derivatives and the Gradient of a Function We've introduced the differential operator before during a few of our calculus lessons. But now we will be using this operator more and more over the prime symbol we are used to when describing differentiation as from now on we will frequently be differentiating with respect to a specific variable and we will have to keep track of which one it is. This leads us to the concept of partial derivatives. Although partial differential equations sound like extremely advanced math and they will get pretty hairy a little later in the series they're"
YouTube Link 2019-09-04T16:44Z 4.2M followers, 309.9K engagements
"Reacting to iamLucid's Garbage Anti-Evolution Video What in the Sam Hill is this Dave is doing a reaction video How can this be Well a number of people had directed me to a really terrible anti-evolution apologetics video made by a channel named "iamLucid". Upon taking a quick glance I decided that it did not merit the effort of a full debunk but it dawned on me to try a reaction style format as I knew this would be way lower maintenance yet still offer an opportunity to expose and debunk. Thus the experiment begins If you like this video please let me know and I will do some more in the"
YouTube Link 2023-03-13T14:30Z 4.2M followers, 2.3M engagements
"Synthetic Biology and Materials Science Part 1: Biological Manufacturing We've discussed some aspects of biotechnology already but we have yet to discuss the promising field of synthetic biology. We are now able to manipulate biological organisms in ways that have technological applications and one of the most important of these applications has to do with materials science. We are now beginning to figure out how to engineer microorganisms that will manufacture important materials for us which circumvents traditional chemical manufacturing via petrochemicals. The economic environmental and"
YouTube Link 2021-04-02T15:36Z 4.2M followers, 43.8K engagements
"The Formation of the Milky Way Galaxy Now that we've learned about the first ten billion years in the development of the universe it's time to get a little more specific to our own species. We live in a galaxy called The Milky Way. When did it form and how Where is it located in the universe Let's take a look Watch the whole Astronomy/Astrophysics playlist: http://bit.ly/ProfDaveAstronomy Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials: http://bit.ly/ProfDaveMaths General Chemistry Tutorials:"
YouTube Link 2018-09-20T15:43Z 4.2M followers, 450.7K engagements
"Ancient China Part 1: The Shang Dynasty (1600 [----] BCE) It's time to head to the far east to investigate the first civilizations of China. The first of these is referred to as the Shang dynasty. How was this developed How was it ruled What was its culture like Let's find out Script by Peter Wyetzner Watch the whole World History playlist: http://bit.ly/ProfDaveWorldHistory American History Tutorials: http://bit.ly/ProfDaveAmericanHistory Italian Tutorials: http://bit.ly/ProfDaveItalian Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials:"
YouTube Link 2025-11-10T15:00Z 4.2M followers, 32.8K engagements
"Sean Carroll Humiliates Eric Weinstein (Piers Morgan is Also Dumb) Eric Weinstein loves pretending to be a physicist. This is something he is able to do on podcasts because most people can't tell that he isn't one. But real physicists can see right through him. And today we get to watch one of these real physicists Sean Carroll tell Eric that he isn't a physicist at all right to his smug face over and over again. It's extremely satisfying. If you missed this Piers Morgan segment or even if you saw it but enjoy my commentary on such things this video is very much for you. Watch all of my"
YouTube Link 2025-05-29T14:00Z 4.2M followers, 1.5M engagements
"E/Z Absolute Configuration of Alkenes It's EZ to assign E and Z absolute configuration to alkenes. Guess which convention we get to use Cahn-Ingold-Prelog is back Don't forget zee zame zide. You have to say it with a German accent or you lose points on the quiz. Watch the whole Organic Chemistry playlist: http://bit.ly/ProfDaveOrgChem General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials:"
YouTube Link 2015-01-05T01:31Z 4.2M followers, 288.6K engagements
"History of the Earth Part 2: Phanerozoic Eon Paleozoic Era We just cruised through the Hadean Archean and Proterozoic eons. That brings us all the way to the Phanerozoic eon which is the one we are still living in today. This is split up into the Paleozoic Mesozoic and Cenozoic eras so let's hit these eras one at a time since so much happened in each one. First up the Paleozoic era Script by Jared Matteucci Watch the whole Geology playlist: http://bit.ly/ProfDaveGeo Mathematics Tutorials: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 General Chemistry"
YouTube Link 2022-03-28T16:15Z 4.2M followers, 208.6K engagements
"Dan Richards is Still a Butthurt Clown Remember how I've promised to ruin the pseudoarcheology cult I started with Graham Hancock then I moved on to Dan Richards and Jimmy Corsetti and it's time for a few other targets. But first we have to hit Dan Richards one more time. He's big mad about being exposed as a pathetic loser and fraud in front of millions of people so he decided to mouth off about me again so it's a great opportunity to dunk on his dumb unkempt face while also teaching some important information about the history of science. Let's all point and laugh The Great Big"
YouTube Link 2026-02-09T15:00Z 4.2M followers, 141.6K engagements
"Unicellular Life Part 1: Bacteria Finally After talking about atoms and molecules in chemistry big molecules in biochemistry and all the parts of the cell in this biology series we are finally ready to look at entire living organisms But we have to start with the simplest ones on the planet and that is undoubtedly bacteria. We went over many aspects of bacterial structure when we talked about prokaryotic cells but now let's learn about the types of bacteria and some of the things that they do. Watch the whole Biology/Genetics playlist: http://bit.ly/ProfDaveBio General Chemistry Tutorials:"
YouTube Link 2017-10-27T15:47Z 4.2M followers, 166.3K engagements
"Accuracy and Precision for Data Collection In science we love data But what are the rules of data collection How accurate and how precise can we get with our data What do these words even mean Let's find out Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials:"
YouTube Link 2017-06-27T16:45Z 4.2M followers, 173.4K engagements
"Protein Structure Everyone has heard of proteins. What are they on the molecular level They're polymers of amino acids of course. They make up most of your body so we have to understand their structure very well Check this out to learn the hierarchy of protein structure so that we can later learn all about what different types of proteins can do. Watch the whole Biochemistry playlist: http://bit.ly/ProfDaveBiochem General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics"
YouTube Link 2016-08-27T15:33Z 4.2M followers, 1.5M engagements
"Special Relativity Part 3: Length Contraction Time dilation was pretty weird huh Well we aren't done yet Time is relative and so is space Different observers measure different lengths for objects and journeys. It's called length contraction and it's another important part of special relativity. Weird stuff Watch the whole Modern Physics playlist: http://bit.ly/ProfDavePhysics2 Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Mathematics Tutorials: http://bit.ly/ProfDaveMaths General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials:"
YouTube Link 2017-05-18T15:00Z 4.2M followers, 441.3K engagements
"Bret Weinstein and Tucker Carlson Have a Playdate Bret Weinstein and Tucker Carlson both suck a lot clearly. So what happens when they get together Does the suckiness compound exponentially It does in fact. From Tucker continuing to fumble 9th grade biology principles while Bret does absolutely nothing to set him straight to vomiting up super racist toddler takes on the Middle East let's point and laugh at these douchebags together so we can feel like the world isn't going up in flames for an hour. My video on Tucker Carlson: https://www.youtube.com/watchv=S1FpUw4D8UM Watch all of my content"
YouTube Link 2025-06-17T14:00Z 4.2M followers, 329.5K engagements
"Greatest Common Factor (GCF) We learned a neat trick for how to quickly get the least common multiple of two numbers so let's find a similarly easy way to find the greatest common factor of two numbers. Again it involves prime factorization which of course everyone enjoys. Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials:"
YouTube Link 2017-08-23T15:19Z 4.2M followers, 241.1K engagements
"Herpes Simplex Virus (HSV-1 and HSV-2) We are probably familiar with herpes as a sexually transmitted disease but we want to know as much as we can about this virus and the things it can do. What is the difference between HSV-1 and HSV-2 How does viral transmission work Let's get into the details. Script by Kellie Vinal Watch the whole Microbiology playlist: http://bit.ly/ProfDaveMicrobio General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology/Genetics Tutorials:"
YouTube Link 2020-06-22T18:28Z 4.2M followers, 197.6K engagements
"Change of Basis We learned about how vectors can form a basis for a vector space and we can express any vector within a vector space as a linear combination of the basis vectors. But there can be more than one set of basis vectors. What if we want to express a vector using some other basis rather than the standard basis Well we can implement a change of basis so let's learn how to do that Script by Howard Whittle Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2"
YouTube Link 2019-05-01T16:41Z 4.2M followers, 359.6K engagements
"Introduction to Biology: What is Life After we learn chemistry and biochemistry we are ready for biology In this course we extend our understanding of molecules to encompass an entire cell and everything inside it. This is a huge step in complexity and we will even talk about how the first cells may have come about. First just a little introduction to whet your whistle Watch the whole Biology/Genetics playlist: http://bit.ly/ProfDaveBio General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials:"
YouTube Link 2017-08-28T15:58Z 4.2M followers, 344K engagements
"Thin Layer Chromatography (TLC) We know how to perform extraction which can separate compounds on the basis of differing solubilities. But what if they have the same solubility Well there is another technique that utilizes differences in polarity and it's called chromatography. There are many varieties of chromatography but the best way to introduce the concept will be to look at thin layer chromatography or TLC for short. Check it out Watch the whole Organic Chemistry playlist: http://bit.ly/ProfDaveOrgChem General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Biochemistry Tutorials:"
YouTube Link 2019-03-01T17:34Z 4.2M followers, 474.9K engagements
"Regulation of Gene Expression: Operons Epigenetics and Transcription Factors We learned about gene expression in biochemistry which is comprised of transcription and translation and referred to as the "central dogma" of molecular biology. But how is this process regulated How does a cell know which genes to express and when Well it's pretty complicated but let's just get our feet wet by looking at operons epigenetics and transcription factors Watch the whole Biology/Genetics playlist: http://bit.ly/ProfDaveBio General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry"
YouTube Link 2017-10-15T14:50Z 4.2M followers, 1.2M engagements
"The Moment James Tour Lost the Origin of Life Debate This was one of my favorite moments from my debate with James Tour. I very obviously caught him in one of his insane lies he had no idea what to do so he panicked and blatantly pivoted to his pathetic chalkboard stunt and then just started shouting about how it was "his time" when it was open discussion. Isn't he the slimiest most pathetic jackass on the planet Watch all of my content humiliating James: http://bit.ly/ProfDaveTour Watch my other debunks/debates/discussions: http://bit.ly/ProfDaveDebunk EMAIL ProfessorDaveExplains@gmail.com"
YouTube Link 2025-10-02T14:00Z 4.2M followers, 203.5K engagements
"Flat Earthers are Having a Meltdown Over the Antarctica Trip and 24-Hour Sun Hey remember how that guy Will Duffy was offering flat earthers free trips to Antarctica to check for the 24-hour sun they all claimed doesn't exist for years And how most of them turned it down like pathetic little cowards Well a few of them agreed and the trip happened Spoiler alert: they saw the 24-hour sun for four days straight. How did the flat earthers on the trip take it And what about all the ones at home in their respective mom's basements They're not pleased about it as you can imagine. And they've"
YouTube Link 2025-01-17T15:00Z 4.2M followers, 2.8M engagements
"CD8+ T Cells We just finished examining CD4+ T cells which play a central role in providing immune protection against pathogens. So what about CD8+ T cells what do those do You may have also heard of them referred to as cytotoxic T cells or CTLs what does that mean Let's find out Script by Niyati Vachharajani Select images provided by BioRender.com Watch the whole Immunology playlist: http://bit.ly/ProfDaveImmuno General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem"
YouTube Link 2024-10-04T14:00Z 4.2M followers, 17.2K engagements
"Pierre Kory: The Ivermectin Fraud Whose Lies Killed Thousands After my live vaccine debate with Steve Kirsch and Pierre Kory I promised to even further expose them both with their own videos. With Steve already covered let's further expose Pierre Kory. This is the jerk that is responsible for the ivermectin craze during the pandemic. He claimed it was a miracle drug that would both cure and prevent COVID. Amazing Except it did neither of those things. At all. But thousands of people believed him some overdosed and died from ivermectin and thousands of people delayed legitimate care waiting"
YouTube Link 2025-11-14T15:00Z 4.2M followers, 206.1K engagements
"Free Radical Halogenation How are alkanes halogenated Look and see. It has to do with free radicals of course. Watch the whole Organic Chemistry playlist: http://bit.ly/ProfDaveOrgChem General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials: http://bit.ly/ProfDaveMath EMAIL ProfessorDaveExplains@gmail.com PATREON http://patreon.com/ProfessorDaveExplains"
YouTube Link 2015-01-05T01:31Z 4.2M followers, 167.1K engagements
"Exposing Discovery Institute Part 11: Michael Egnor Today's episode exposing Discovery Institute frauds focuses on Michael Egnor He's a brain surgeon who has no idea how brains work. Mikey tells a lot of dumb lies about brains in order to pretend that souls exist and that science somehow supports their existence. Shall we debunk the shit out of his dumb lies about neuroscience and further expose this toxic propaganda mill in the process Of course we shall Watch me expose many more Discovery Institute IDiots: http://bit.ly/ProfDaveDI Watch my other debunks/debates/discussions:"
YouTube Link 2025-10-21T14:00Z 4.2M followers, 215.8K engagements
"Types of Plant Tissues We just learned about plant cells so now it's time to learn about how these different types of cells come together to form all the different tissues in the plant. There is ground tissue dermal tissue and vascular tissue. What do they all do What the heck is xylem and phloem Let's learn about these types of tissue now Script written by Sheryl Hosler and edited by Ryan Helcoski Watch the whole Botany playlist: http://bit.ly/ProfDaveBotany General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry"
YouTube Link 2020-12-03T10:05Z 4.2M followers, 457.9K engagements
"Implicit Differentiation We are pretty good at taking derivatives now but we usually take derivatives of functions that are in terms of a single variable. What if we have x's and y's in there We need a new technique It's called implicit differentiation and it goes like this. Watch the whole Calculus playlist: http://bit.ly/ProfDaveCalculus Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic"
YouTube Link 2018-03-22T16:23Z 4.2M followers, 1.5M engagements
"Elastic and Inelastic Collisions When you take a shot on a pool table or tackle someone in a football game you're participating in a collision. But the two events we just mentioned are totally different kinds of collisions But what are elastic collisions and what are inelastic collisions We have to learn the varieties and what they mean for momentum and energy. Watch the whole Classical Physics playlist: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials: http://bit.ly/ProfDaveMaths General Chemistry Tutorials:"
YouTube Link 2017-03-15T17:24Z 4.2M followers, 1.3M engagements
"Calculating Volume by Cylindrical Shells We now know one method for finding the volume of a solid of revolution. But there are tricky examples where the normal method won't work like when both the inner and outer radius of a washer are being determined by the same function. Luckily there is another method we can use It involves cylindrical shells. What's that you ask Watch this Watch the whole Calculus playlist: http://bit.ly/ProfDaveCalculus Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials:"
YouTube Link 2018-06-04T14:48Z 4.2M followers, 356.4K engagements
"Why Do People Like Free Markets We just learned about all the four main economic systems so it's time to dive a little deeper with each of them one at a time and we will start with free markets. Why do people like them What are the advantages and disadvantages of free markets Let's find out Script by Matt Beat: https://www.youtube.com/user/iammrbeat Animation by Ignacio Triana: https://www.youtube.com/c/Unraveled Watch the whole Economics playlist: http://bit.ly/ProfDaveEcon Mathematics Tutorials: http://bit.ly/ProfDaveMath American History Tutorials: http://bit.ly/ProfDaveAmericanHistory"
YouTube Link 2022-05-02T15:29Z 4.2M followers, 94.8K engagements
"Influenza (The Flu) We've all heard of the flu and probably know that it is associated with a particular virus. What is the structure of this virus How is it transmitted What steps do we have in place in terms of treatment and prevention The flu is actually no joke lots of people die from influenza every year so let's get a closer look now Script by Kellie Vinal Watch the whole Microbiology playlist: http://bit.ly/ProfDaveMicrobio General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials:"
YouTube Link 2020-06-01T16:44Z 4.2M followers, 224.7K engagements
"The Fundamental Theorem of Calculus: Redefining Integration So we know a lot about differentiation and the basics about what integration is so what do these two operations have to do with one another Everything And the discovery of their relationship is what launched modern calculus back in the time of Newton and pals. Check it out Watch the whole Calculus playlist: http://bit.ly/ProfDaveCalculus Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General Chemistry"
YouTube Link 2018-04-23T15:12Z 4.2M followers, 271.3K engagements
"The Mechanism of Muscle Contraction: Sarcomeres Action Potential and the Neuromuscular Junction We've learned about the types of muscle including skeletal muscle and we know then when these muscles contract we are able to move our bodies around. But how exactly does this happen on the molecular level There is an astonishing amount of chemistry happening to make this work so let's dive into those sarcomeres and take a look at the neuromuscular junction Watch the whole Anatomy & Physiology playlist: http://bit.ly/ProfDaveAnatPhys General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem"
YouTube Link 2019-02-07T17:11Z 4.2M followers, 2M engagements
"Biotechnology: Genetic Modification Cloning Stem Cells and Beyond In this biology playlist we've learned so much about DNA and living organisms Well so has mankind over the past century and oh what we have done with this knowledge It's pretty incredible when you stop and think about it. Let's go over some of the topics at the forefront of biotechnology as well as what's in store for us in the future. Watch the whole Biology/Genetics playlist: http://bit.ly/ProfDaveBio General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem"
YouTube Link 2017-11-28T18:15Z 4.2M followers, 174.5K engagements
"The Terrence Howard/Billy Carson Comedy Hour You know how Terrance Howard is a complete lunatic who spews hot gibberish to trick people into thinking he's smart And how Billy Carson is a grifting fraud who takes advantage of the black community to get rich from slinging snake oil and lies What could be funnier than watching these two asshats have an idiot contest Grab some popcorn and watch them jerk each other off with an endless string of buzzwords. Watch all of my videos on Terrence: http://bit.ly/ProfDaveTerry My first Billy video: https://www.youtube.com/watchv=kfjWxXIPTq8 Watch my other"
YouTube Link 2024-09-14T14:00Z 4.2M followers, 664.8K engagements
"Rabies (Genus Lyssavirus) Most people have heard of rabies a word that instantly conjures up imagery of a rabid dog. This is an appropriate connotation as the rabies virus is commonly transmitted through the saliva of an animal. Rabies is as ancient as it is deadly so let's learn more about it now. Script by Kellie Vinal Watch the whole Microbiology playlist: http://bit.ly/ProfDaveMicrobio General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology/Genetics Tutorials:"
YouTube Link 2020-10-26T16:37Z 4.2M followers, 154.5K engagements
"Matrix Multiplication and Associated Properties We covered matrix addition so how do we multiply two matrices together It's not as straightforward as you might guess so let's make sure we have this algorithm down Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials:"
YouTube Link 2018-11-07T17:36Z 4.2M followers, 208.9K engagements
"Viscosity Cohesive and Adhesive Forces Surface Tension and Capillary Action Liquids have some very interesting properties by virtue of the intermolecular forces they make both between molecules of the liquid and those between the liquid and some other material they are in contact with. Let's learn about viscosity cohesive and adhesive forces surface tension and capillary action. Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry"
YouTube Link 2019-05-10T16:53Z 4.2M followers, 702.4K engagements
"The Chemical Bond: Covalent vs. Ionic and Polar vs. Nonpolar Ionic Bond Covalent Bond James Bond so many bonds What dictates which kind of bond will form Electronegativity values of course. Let's go through each type and what they're all about. Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials:"
YouTube Link 2015-09-08T17:05Z 4.2M followers, 2M engagements
"Types of Colloids and Their Properties Earlier we learned that as far as mixtures go we can have homogeneous solutions or totally heterogeneous mixtures where components don't mix. But there are actually intermediary mixtures where substances mix to some limited degree. Let's learn about colloids as well as suspensions Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials:"
YouTube Link 2019-05-24T16:57Z 4.2M followers, 243.3K engagements
"Covalent Bond Energy and Length We've already learned about different types of chemical bonds including covalent bonds. But now that we know about enthalpy and orbitals and some other concepts let's revisit the covalent bond and dig a little deeper. Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials:"
YouTube Link 2019-02-08T17:03Z 4.2M followers, 111K engagements
"Dunking on Creationist Idiot Jimbob in Live Debate A couple days ago I made a video mocking possibly the dumbest and most pathetic creationist I've ever encountered. His name is Jay Dyer and he's a science illiterate philbro who didn't like it when I reacted to a video he did fumbling 9th grade level biology. So he made a video response where he basically just mocked me in a racist Jewish voice the whole time. Not exaggerating. His idiot friend Jimbob was in the video I initially reacted to and he didn't like me making fun of them so he demanded to be let onto a livestream I was participating"
YouTube Link 2026-02-10T15:00Z 4.2M followers, 147.7K engagements
"Cellular Respiration Part 1: Glycolysis You need energy to do literally anything even just lay still and think. Where does this energy come from Well food right But how This is one of the most miraculous biological processes and it happens in our bodies every moment of every day. It's quite complicated so let's check it out in three sections. First up glycolysis Watch the whole Biochemistry playlist: http://bit.ly/ProfDaveBiochem General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biology Tutorials: http://bit.ly/ProfDaveBio"
YouTube Link 2016-09-14T16:33Z 4.2M followers, 959.2K engagements
"Types of Immune Cell Receptors We've talked a bit about how immune cell receptors operate but now it's time to get specific about the types of receptors that immune cells can express. That means we need to discuss antigen receptors costimulatory receptors inhibitory receptors cytokine receptors and chemokine receptors. Let's get a closer look at these now Script by Stephanie Melchor Select images provided by BioRender.com Watch the whole Immunology playlist: http://bit.ly/ProfDaveImmuno General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials:"
YouTube Link 2021-06-23T15:13Z 4.2M followers, 100.7K engagements
"Ancient Egypt Part 1: The Old Kingdom (3000 [----] BCE) One of the most famous civilizations in antiquity is that of Ancient Egypt. Everyone knows about pharaohs and pyramids but there is so much to learn about the numerous dynasties that ruled this land and how this society evolved over several millennia. The history of Ancient Egypt is broken down into the Old Kingdom Middle Kingdom and New Kingdom so let's start off by examining the Old Kingdom. Script by Peter Wyetzner Watch the whole World History playlist: http://bit.ly/ProfDaveWorldHistory American History Tutorials:"
YouTube Link 2024-12-09T15:00Z 4.2M followers, 109.1K engagements
"The Origin of Life on Earth You must have wondered about it before haven't you How did life begin on earth I mean the very first thing. The first unicellular organism billions of years ago. Is it even possible As it happens our understanding of chemistry biochemistry and biology has become so sophisticated over the years that we now have a pretty reasonable grasp as to how abiogenesis must have occurred. This is the spontaneous generation of life from non-living material. As incredible as it sounds there is a lot of science to discuss here so let's get into it Watch the whole Biology/Genetics"
YouTube Link 2017-09-04T16:27Z 4.2M followers, 274.3K engagements
"Clinical Psychology Part 1: Sigmund Freud and Psychoanalysis It's time to dive into clinical psychology To discuss this topic we must first discuss Sigmund Freud the father of psychoanalysis. The whole lying down on a couch and talking to a therapist thing That's Freud's. But he also had some bizarre ideas regarding psychosexual stages the Oedipus complex and more. Let's go through them all now Script by Caitlyn Finton Animation by Ignacio Triana: https://www.youtube.com/c/Unraveled Watch the whole Psychology playlist: http://bit.ly/ProfDavePsych General Chemistry Tutorials:"
YouTube Link 2023-05-29T14:30Z 4.2M followers, 236.2K engagements
"The Human Reproductive System Throughout this series we've learned all about the various systems of the human body. But how do humans make more humans As a child might ask where do babies come from Suppress the immature giggles if you can human reproduction is certainly absurd and hilarious but it's also a serious subject of scientific inquiry so let's look at the reproductive system just the same way we looked at all the others Watch the whole Anatomy & Physiology playlist: http://bit.ly/ProfDaveAnatPhys General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials:"
YouTube Link 2019-05-23T16:43Z 4.2M followers, 550K engagements
"History of the Earth Part 3: Phanerozoic Eon Mesozoic Era We are working our way through the Phanerozoic eon and we got through the Paleozoic era. Next up the Mesozoic era In this era we see the rise and fall of the dinosaurs those beloved beasts. How did this come to pass What can we say about Earth's topography during this time Let's take a look Script by Jared Matteucci Watch the whole Geology playlist: http://bit.ly/ProfDaveGeo Mathematics Tutorials: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 General Chemistry Tutorials:"
YouTube Link 2022-04-22T15:45Z 4.2M followers, 164.1K engagements
"Receptors: Signal Transduction and Phosphorylation Cascade Did you know that cells can talk to one another One cell can send a molecule over to another cell and a receptor protein in the cell membrane will receive it just like molecular walkie-talkies. Check it out Watch the whole Biochemistry playlist: http://bit.ly/ProfDaveBiochem General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials:"
YouTube Link 2016-09-06T20:55Z 4.2M followers, 574.8K engagements
"Solving Higher-Degree Polynomials by Synthetic Division and the Rational Roots Test By now we are experts at solving quadratics by a number of different strategies. But what about cubics And quartics And quintics Seems pretty daunting but believe it or not there is a reliable method to solve these higher degree polynomials as well. It's a little more time-consuming but it can be done Check it out. Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General"
YouTube Link 2017-09-28T14:44Z 4.2M followers, 931.7K engagements
"The Digestive System We eat food every day and most of us are aware that we do this so that our body can absorb nutrients that are inside the food which we need to stay alive. But how does this work What goes inside the body in between the time we put a snack into our mouths and then some of it comes out the other end Let's investigate the digestive system Watch the whole Anatomy & Physiology playlist: http://bit.ly/ProfDaveAnatPhys General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials:"
YouTube Link 2019-05-09T20:48Z 4.2M followers, 1.1M engagements
"Solubility Product Constant (Ksp) We've learned that some ionic solids are totally water insoluble but in fact this is a slight oversimplification. Even such solids will dissolve to some minuscule degree and we can measure this and do calculations with it. Let's learn about solubility product constants Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials:"
YouTube Link 2019-05-31T15:56Z 4.2M followers, 476.2K engagements
"Gross Domestic Product (GDP) How do we measure the health of an economy The most common way is by looking at its gross domestic product or GDP. But what does that mean exactly Are there any limitations to this approach What kind of goods are counted towards GDP Let's dive into some specifics. Script by Matt Beat: https://www.youtube.com/user/iammrbeat Animation by Ignacio Triana: https://www.youtube.com/c/Unraveled Watch the whole Economics playlist: http://bit.ly/ProfDaveEcon Mathematics Tutorials: http://bit.ly/ProfDaveMath American History Tutorials: http://bit.ly/ProfDaveAmericanHistory"
YouTube Link 2023-05-11T14:30Z 4.2M followers, 322K engagements
"Flat Earther Austin Witsit Doesn't Know What Clockwise Means I've only debated a couple of flat earthers but Austin Witsit is the biggest douchenozzle among them. Here's a snippet where Austin brags about his complete lack of spatial reasoning skills including being unable to discern between clockwise and counterclockwise rotation. Enjoy Watch all my debunks/debates/discussions: http://bit.ly/ProfDaveDebunk EMAIL ProfessorDaveExplains@gmail.com PATREON http://patreon.com/ProfessorDaveExplains Check out "Is This Wi-Fi Organic" my book on disarming pseudoscience Amazon: https://amzn.to/2HtNpVH"
YouTube Link 2025-11-13T21:00Z 4.2M followers, 259.2K engagements
"AP Chemistry Review: Unit [--] (Equilibrium) Let me help you prepare for the AP Chemistry exam These review materials are the absolute fastest way to review all the most important concepts. Check out the unit summary videos then test your knowledge with tons of practice problems. Unit 7: Equilibrium - Introduction to Equilibrium - Direction of Reversible Reactions - Reaction Quotient and Equilibrium Constant - Calculating the Equilibrium Constant - Magnitude of the Equilibrium Constant - Properties of the Equilibrium Constant - Calculating Equilibrium Concentrations - Representations of"
YouTube Link 2024-08-19T15:25Z 4.2M followers, [----] engagements
"Electric Potential Current and Resistance Whenever you plug something into an electrical socket don't you wonder what's going on Well you should as it's pretty neat. What is electricity made of How did we figure out how to harness this power Let's take a look at electric potential current and resistance. Watch the whole Classical Physics playlist: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials: http://bit.ly/ProfDaveMaths General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials:"
YouTube Link 2017-04-12T21:09Z 4.2M followers, 539.9K engagements
"Fact-Checking James Tours Embarrassing Debate Performance Any rational person who watched my debate with James Tour was immediately struck by Tour's totally insane behavior focused on chalkboard pageantry and shouting like a deranged lunatic for two full hours. But there is a lot more to discuss regarding the very numerous and very specific lies he told during the exchange regarding the scientific literature we were discussing. Not to mention the biased moderator and other key details which deserve to be addressed. So let's dive into a little fact-checking endeavor which comes with commentary"
YouTube Link 2023-06-06T14:30Z 4.2M followers, 970.6K engagements
"Addition and Subtraction of Large Numbers We know how to add and subtract small numbers but what about big numbers Is it complicated No not really but there is a bit of an algorithm to learn. Check this out Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials:"
YouTube Link 2017-08-13T15:45Z 4.2M followers, 341.3K engagements
"Complex Numbers: Operations Complex Conjugates and the Linear Factorization Theorem In getting through algebra we never talked about complex numbers but they are important so let's discuss them now These are numbers with a real component and an imaginary component so we first have to understand what i means in a mathematical context. It's the square root of negative one. Then we need to learn how to do arithmetic with these expressions and finally we can understand how we get answers in this form when using the quadratic formula but with a negative discriminant. Much to discuss check this out"
YouTube Link 2017-12-11T17:03Z 4.2M followers, 381.5K engagements
"A Brief History of Psychology: From Plato to Pavlov Before we dive into all the particulars of modern psychology and its research methods we need to get a little context. When was psychology first developed and by whom Was it scientific at that time or more philosophical Who was the first to coin the term "psychologist" as a profession There are so many figures to discuss Plato Aristotle Descartes Wilhelm Wundt Sigmund Freud and more Let's check out the history of psychology. Script by Caitlyn Finton Animation by Ignacio Triana: https://www.youtube.com/c/Unraveled Watch the whole Psychology"
YouTube Link 2021-11-15T15:56Z 4.2M followers, 364.9K engagements
"Electron Microscopy (TEM and SEM) We've talked a lot about light microscopy but this technique has inherent limitations in resolution and magnification. The next paradigm in microscopy that emerged in the middle of the 20th century was electron microscopy. Because electrons have much shorter wavelengths than photons electron microscopy offers up to [----] times better resolution than light microscopy. This allowed us to visualize structures as small as individual proteins for the first time which revolutionized the field of biology. What are the types of electron microscopy and how do they work"
YouTube Link 2021-02-03T16:45Z 4.2M followers, 411.3K engagements
"Properties of Integrals and Evaluating Definite Integrals Now that we know that integration simply requires evaluating an antiderivative we don't have to look at rectangles anymore But integration can also be a very difficult technique. Let's start simple by learning some properties of integrals and getting some practice with evaluating simple definite integrals. Watch the whole Calculus playlist: http://bit.ly/ProfDaveCalculus Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials:"
YouTube Link 2018-04-25T15:58Z 4.2M followers, 258K engagements
"Transcription and Translation: From DNA to Protein Ok so everyone knows that DNA is the genetic code but what does that mean How can some little molecule be a code that makes a single cell develop into a giraffe or a monkey or Tony Danza Within this clip lie the answers child It's all about transcription and translation. Watch the whole Biochemistry playlist: http://bit.ly/ProfDaveBiochem General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials:"
YouTube Link 2016-09-09T18:10Z 4.2M followers, 4.7M engagements
"Graphing Functions and Their Derivatives We know how to graph functions and we know how to take derivatives so let's graph some derivatives Many students find that this hurts their brain but it's just about practice Remember that the value of a function and the rate of change of that function at a particular point are completely unrelated A function may be positive but have a negative rate of change or vice versa. Let's learn how to graph derivatives intuitively and then some applications of this in physics Watch the whole Calculus playlist: http://bit.ly/ProfDaveCalculus Watch the whole"
YouTube Link 2018-04-05T14:52Z 4.2M followers, 179.2K engagements
"Limiting Reagents and Percent Yield Chemistry doesn't always work perfectly silly. Molecules are left over when one thing runs out Also we never get all of the products that we thought we might by doing the math. You gotta know about the limiting reagents and the percent yield Don't worry it's as easy as bologna sandwiches. Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology"
YouTube Link 2015-07-13T13:40Z 4.2M followers, 670K engagements
"Quantization of Energy Part 2: Photons Electrons and Wave-Particle Duality So Max Planck kicked things off but how does the story of modern physics continue With none other than your favorite scientist and mine Albert Einstein He did more than just stick his tongue out and have crazy hair. He elucidated the nature of the photoelectric effect back while working as a patent clerk in Switzerland. Must have been a boring job because Einstein changed the world with his wandering mind Watch the whole Modern Physics playlist: http://bit.ly/ProfDavePhysics2 Classical Physics Tutorials:"
YouTube Link 2017-04-24T15:28Z 4.2M followers, 403K engagements
"Types of Tissue Part 2: Connective Tissue We just learned about epithelial tissue so let's learn about a second type of tissue connective tissue. This is extremely abundant in the body with many different forms and performing many different functions. Even blood is a connective tissue Bet you didn't know that. Let's learn all about connective tissue now. Watch the whole Anatomy & Physiology playlist: http://bit.ly/ProfDaveAnatPhys General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials:"
YouTube Link 2018-11-28T17:46Z 4.2M followers, 590.1K engagements
"The Skeletal System Now that we know more about the structure of bones we are ready to see how they all come together to form the skeletal system. An adult has [---] bones. What are they How are they organized What do they do Let's go through all of these bones right now Watch the whole Anatomy & Physiology playlist: http://bit.ly/ProfDaveAnatPhys General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology/Genetics Tutorials: http://bit.ly/ProfDaveBio Biopsychology Tutorials:"
YouTube Link 2019-01-07T18:24Z 4.2M followers, 4.1M engagements
"Lets All Get Past This Confusion About Trans People There has been a lot of talk about trans people lately with controversy surroundings comedians sports as well as the usual back and forth between liberals and conservatives. As a liberal the hateful and harmful rhetoric from the right upsets me but I have also been consistently disappointed with the ways that liberals approach this conversation failing to properly explain key scientific concepts to conservatives. I felt very strongly that I had something to add to the conversation and I hope that people on both sides can find value in this"
YouTube Link 2022-06-06T15:30Z 4.2M followers, 1M engagements
"Graphing Rational Functions and Their Asymptotes You might think we are all set with graphs but you're wrong We will learn about many other types of functions as well as how to graph them. First up is rational functions which are quotients of polynomials. How can we graph these We have to find their asymptotes. What's that Sounds sexy. Well it is kind of. Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem"
YouTube Link 2017-11-22T18:52Z 4.2M followers, 869.1K engagements
"Kinetic Energy and Potential Energy You can put energy into an object. Wanna know how No you don't need a Harry Potter wand. Just lift it up above your head By doing so you bestow the object with more potential energy. Learn more about the energy of motion and the energy of location in this clip. Watch the whole Classical Physics playlist: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials: http://bit.ly/ProfDaveMaths General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem"
YouTube Link 2017-03-08T16:33Z 4.2M followers, 897.4K engagements
"Population Ecology (Life Tables Age Structure Population Growth) With an understanding of individual organisms let's take a look at population ecology which looks at the dynamics of populations of organisms. How do populations grow How are they structured What is their geography There is a lot to discuss here Script by Ulyana Horodyskyj Watch the whole Ecology playlist: http://bit.ly/ProfDaveEcology Biology Tutorials: http://bit.ly/ProfDaveBio Anatomy & Physiology Tutorials: http://bit.ly/ProfDaveAnatPhys Microbiology Tutorials: http://bit.ly/ProfDaveMicrobio Botany Tutorials:"
YouTube Link 2024-01-22T15:00Z 4.2M followers, 85.1K engagements
"Scarcity Trade-offs and Cost/Benefit Analysis A core concept we must discuss if we are to understand economics is scarcity. Our wants and needs are endless but the things we want and need are necessarily finite in nature. Therefore we can say that these things are scarce. They run out. If they didn't economics would not exist because economics is all about making choices based on scarcity. If we spend money on one thing there is necessarily a trade-off because we have less money to spend on something else. This is true for both rich and poor as no one has infinite wealth. When we make choices"
YouTube Link 2021-04-28T15:59Z 4.2M followers, 163.8K engagements
"Reacting to Lord Jamar Still Whining About How I Humiliated Him Click here: https://boot.dev/promo=PROFESSORDAVE and use my code PROFESSORDAVE to get 25% off your first year of boot.dev. Earlier this year I humiliated a rapping flat earther named Lord Jamar lived on a podcast. Since then he's been completely obsessed with me refusing to admit that he's a complete buffoon who fell for the dumbest hoax in human history but instead doubling down on everything and venting about what a stupid shill I am to whomever will listen. So let's react to him doing that Humiliating Lord Jamar in live"
YouTube Link 2025-09-14T14:01Z 4.2M followers, 483.8K engagements
"Types of Immune Cells Part 2: Myeloid and Lymphoid Lineages With the basic functions of immune cells covered we are now ready to go through all the different types of immune cells and talk a little bit about what they all do. Again each type will get its own tutorial later in the series but it's a good idea to cover them all up top for context. So let's get a look at the different myeloid cells and lymphoid cells like macrophages neutrophils dendritic cells and many more Script by Stephanie Melchor Watch the whole Immunology playlist: http://bit.ly/ProfDaveImmuno General Chemistry Tutorials:"
YouTube Link 2021-03-05T16:53Z 4.2M followers, 262.1K engagements
"Professor Dave Humiliates Flat Earther David Weiss (DITRH Debunked Live) For months now hordes of idiots have been lurking in my comments sections aggressively insisting that I need to debate David Weiss because he's some kind of flat earth messiah who is undebunkable and I should cower in the face of his might. Of course I ignored them because he is a two-bit charlatan and who cares what idiots say but then a channel with almost 700k subscribers asked if I would debate Weiss on his channel and I figured it might be a good way to pick up a few subscribers and also humiliate a flat earth icon"
YouTube Link 2022-04-08T14:53Z 4.2M followers, 6.9M engagements
"The Periodic Table: Atomic Radius Ionization Energy and Electronegativity Why is the periodic table arranged the way it is There are specific reasons you know. Because of the way we organize the elements there are special patterns that emerge. And you know how Professor Dave feels about patterns. He likes them. Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials:"
YouTube Link 2015-09-03T15:44Z 4.2M followers, 5.1M engagements
"Graphing Conic Sections Part 2: Ellipses The next conic section is like a circle but it's like someone stretched a circle out in a particular direction. It's the ellipse These are very important in astronomy as most celestial objects follow elliptical paths. Let's learn all about ellipses and how to graph them. Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials:"
YouTube Link 2017-11-14T17:15Z 4.2M followers, 210.9K engagements
"Algebraic Word Problems Algebra brings us a new and interesting way to see how math can solve real-world problems We just have to learn how to construct equations that say something meaningful about a given situation and then solve them using the techniques we already know. Learn all about how to do this here Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials:"
YouTube Link 2017-09-06T15:26Z 4.2M followers, 268.6K engagements
"Dalton's Law and Partial Pressures We know about the ideal gas laws like Boyle's and Charles's and so forth. Now let's look at one law that involves mixtures of gases. This is called Dalton's Law and to understand it we have to learn about the concept of partial pressures so let's take a look Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio"
YouTube Link 2018-11-09T17:26Z 4.2M followers, 297.5K engagements
"Acid-Base Equilibria and Buffer Solutions Remember those pesky iceboxes Weak acids and bases establish equilibria so we have to do iceboxes to figure out things about them. But don't worry buffers are neat. Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials:"
YouTube Link 2016-01-12T16:19Z 4.2M followers, 625.1K engagements
"Inverse Matrices and Their Properties We learned about matrix multiplication so what about matrix division There is no such thing But we can multiply a matrix by its inverse which is kind of like multiplying a number by its reciprocal to cancel it out which with matrices will yield the identity matrix. So how do you find an inverse matrix Let's learn how Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem"
YouTube Link 2019-01-14T18:11Z 4.2M followers, 828.5K engagements
"Terrence Howard is Legitimately Insane At least a hundred of you asked for it so here it is. Terrence Howard has been acting like a complete lunatic for years now pretending that he has revolutionized physics chemistry mathematics engineering and virtually every other area of inquiry. Spoiler alert he hasn't. He's a science illiterate buffoon and delusional narcissist who spews gibberish on podcasts that only the most gullible people alive could fall for. Let's pick apart some his insane ramblings shall we Watch all of my videos on Terrence: http://bit.ly/ProfDaveTerry Watch my other"
YouTube Link 2024-05-24T14:00Z 4.2M followers, 4.1M engagements
"Graphing Lines in Algebra: Understanding Slopes and Y-Intercepts Now that we are familiar with the coordinate plane it's time to learn more about lines as these are the simplest things to graph. Lines have slopes and they usually have intercepts so lets learn what these words mean Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry"
YouTube Link 2017-10-04T15:49Z 4.2M followers, 880.3K engagements
"All Aboard the James Tour Damage Control Train James was not happy with how badly he was humiliated by his intellectual superiors at Harvard so he is back at it with some damage control Apart from pretending the Cambridge Round Table was a "debate" and that he somehow "won the debate" his tactic is now to accuse Lee Cronin of hype and plagiarism with the help of Hector Zenil a mediocre scientist with an axe to grind. So let's talk with Lee a bit so he can refute these accusations as well as talk about how Jim's "challenge" is completely idiotic. Then as a special treat we will hear from Jim's"
YouTube Link 2024-02-09T15:00Z 4.2M followers, 419.1K engagements
"Naming Ionic Compounds We have to know how to name ionic compounds. Not any name we want like Jeff or Larry there's rules for how to name them. And look at all these adorable polyatomic ions Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials:"
YouTube Link 2015-09-10T17:43Z 4.2M followers, 1.1M engagements
"Neutralization Reactions We know about acids and bases and we know about acid-base reactions so what is a neutralization reaction Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials:"
YouTube Link 2018-10-26T16:06Z 4.2M followers, 369.5K engagements
"Sabine Hossenfelder Cant Stop Acting Like a Complete Fraud I've already made two videos about Sabine Hossenfelder's gradual decline into deception and charlatanry but her behavior has gotten so bad lately that it's time to make another one. This time after examining her latest pathetic stunt it's time to bring in some physicists to comment on the ridiculous things she's been spewing. Those would be Eluned Smith Aram Harrow and Tracy Slatyer all professors of physics at MIT. Most of you were already on board but if you Sabine fanboys wouldn't listen to me before maybe you'll listen to them. My"
YouTube Link 2025-02-28T15:01Z 4.2M followers, 743.7K engagements
"Valence Bond Theory Hybrid Orbitals and Molecular Orbital Theory Attention This video about molecular orbitals is much better: https://www.youtube.com/watchv=I2k61JMk71M Alright let's be real. Nobody understands molecular orbitals when they first take chemistry. You just pretend you do and then in your next course you learn them a little better. And then a little better than that. And five years later you sort of understand them. So don't get discouraged Just watch this for a head start and do your best. Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the"
YouTube Link 2016-01-10T02:55Z 4.2M followers, 2.2M engagements
"The Difference Between Fiscal and Monetary Policy Governments are typically concerned with curbing both unemployment and inflation and there are two ways they approach this fiscal policy and monetary policy. These are tools that can be used to speed or slow economic growth. What are they How do they work Let's check it out Script by Matt Beat: https://www.youtube.com/user/iammrbeat Animation by Ignacio Triana: https://www.youtube.com/c/Unraveled Watch the whole Economics playlist: http://bit.ly/ProfDaveEcon Mathematics Tutorials: http://bit.ly/ProfDaveMath American History Tutorials:"
YouTube Link 2022-12-12T15:30Z 4.2M followers, 215.6K engagements
"Exposing Discovery Institute Part 6: Jonathan McLatchie It's time to expose another Discovery Institute charlatan This time we turn to bottom-tier errand boy Jonathan McLatchie a pointless tool who would normally be ignored but he wrote a series of rubbish Evolution News blog posts as damage control for my debunk of Michael Behe so let's humiliate him. The best part is at the end where he fabricated a twitter interaction with me called it a "debate" and published it as content. You've seen some pathetic losers in this series so far but this guy really is the bottom of the barrel. Enjoy PZ"
YouTube Link 2023-09-06T14:00Z 4.2M followers, 321.5K engagements
"Human Papillomavirus (HPV) Human papillomavirus or HPV is a virus that many people are familiar with as it is unbelievably prevalent in the human population. But there are many strains that do different things in the body as they invade different types of tissues so let's learn more about the structure of this virus and precisely what it is capable of. Script by Kellie Vinal Watch the whole Microbiology playlist: http://bit.ly/ProfDaveMicrobio General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials:"
YouTube Link 2020-11-13T16:21Z 4.2M followers, 330.9K engagements
"Optimization Problems in Calculus What good is calculus anyway what does it have to do with the real world Well a lot actually. Optimization is a perfect example If you want to figure out how to maximize your profits or minimize your costs or if you want to maximize an area or minimize a distance you are finding the maxima and minima of a function and that's doing calculus All we need to know is how to take derivatives and set them equal to zero so let's go make some money Watch the whole Calculus playlist: http://bit.ly/ProfDaveCalculus Watch the whole Mathematics playlist:"
YouTube Link 2018-04-10T13:11Z 4.2M followers, 288K engagements
"The Common Ion Effect We've learned a few applications of the solubility product so let's learn one more This is called the common ion effect and it can be a good way to influence the solubility of a particular ionic compound in solution or even promote precipitation. Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics"
YouTube Link 2019-07-05T16:08Z 4.2M followers, 367.6K engagements
"Linear First-Order Differential Equations We just got our feet wet with separable differential equations so now let's look at something slightly trickier. Solving linear first-order differential equations will require a little bit more effort involving something called an integrating factor. Let's see how this works with a few examples. Script by Lorcan Nicholls Watch the whole Differential Equations playlist: http://bit.ly/ProfDaveDiffeq Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials:"
YouTube Link 2025-03-19T14:01Z 4.2M followers, 87.5K engagements
"Laplace Transforms Part 1: Solving Differential Equations There is another important tool when it comes to solving differential equations and that is the Laplace transform. This is an operator that we can apply to both sides of a differential equation in order to solve it in a fairly involved way. Let's get a closer look Script by Lorcan Nicholls Watch the whole Differential Equations playlist: http://bit.ly/ProfDaveDiffeq Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials:"
YouTube Link 2025-07-23T14:01Z 4.2M followers, 24.6K engagements
"Multiplication of Large Numbers Have you ever met someone that can multiply big numbers in their head very fast Here's what most people don't realize. They aren't doing that thing from school in their head. They are using a much simpler approach that utilizes the distributive property. In this clip we will learn the classic pen-and-paper approach but also some easy ways to do mental math that will impress your friends. Check it out Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials:"
YouTube Link 2017-08-15T15:55Z 4.2M followers, 213.4K engagements
"Integration Using The Substitution Rule With the basics of integration down it's now time to learn about more complicated integration techniques We need special techniques because integration is not as straightforward an algorithm as differentiation. The first technique we will add to our bag of tricks is the substitution rule. Check it out Watch the whole Calculus playlist: http://bit.ly/ProfDaveCalculus Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General"
YouTube Link 2018-05-07T16:08Z 4.2M followers, 729.4K engagements
"Quantum Mechanics of the Electron We don't have to know too much physics to do chemistry but the electron the particle that makes all the chemistry happen is a quantum mechanical particle so we have to understand it just a little bit. Don't worry no math just conceptual weirdness followed by compelling monologue Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials:"
YouTube Link 2015-08-26T17:39Z 4.2M followers, 348.2K engagements
"Evaluating and Graphing Exponential Functions We know about functions where exponents are raised to different variables to produce quadratics cubics quartics and so forth. But what about when the variable itself is an exponent This is called an exponential function and they are important for modeling things like population growth and other real-world scenarios. Let's learn about them Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General Chemistry Tutorials:"
YouTube Link 2017-11-29T16:59Z 4.2M followers, 257.7K engagements
"The Earth is Definitely Not Flat Anti-science mentality is rampant in this day and age and one of the more peculiar aspects of this trend is the current fad that is the Flat Earth model. There exists a group of people who believe that against everything we have come to learn throughout the scientific revolution the world is actually flat and the center of the universe. That's not all there's a big cover up with NASA and all the governments like some real sci-fi stuff. Let's go through some of the talking points of this model and see if we can deconstruct it shall we Watch the whole"
YouTube Link 2019-03-27T17:22Z 4.2M followers, 2.4M engagements
"Subspaces and Span Now that we know what vector spaces are let's learn about subspaces. These are smaller spaces contained within a larger vector space that are themselves vector spaces. Script by Howard Whittle Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials:"
YouTube Link 2019-03-26T15:59Z 4.2M followers, 564.2K engagements
"Dark Matter and Dark Energy: The Frontier of Astronomy For a while now we've been discussing all of things we know about the universe. What about some of the things we don't know If we look to the current frontier of astronomy we find two mystifying concepts dark matter and dark energy. What are these things How do we know they exist Do we have any guesses as to what they are Find out here Watch the whole Astronomy/Astrophysics playlist: http://bit.ly/ProfDaveAstronomy Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2"
YouTube Link 2019-02-27T17:05Z 4.2M followers, 109.9K engagements
"Conformational Analysis of Ethane and Butane - Newman Projections Hooray for molecular models Here we will examine the different conformations of ethane and butane and discuss their relative energies. Also Dave will show you how to draw Newman projections. Watch the whole Organic Chemistry playlist: http://bit.ly/ProfDaveOrgChem General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials:"
YouTube Link 2015-01-05T01:32Z 4.2M followers, 332.2K engagements
"Image and Kernel Now that we've learned about linear transformations we can combine this with what we know about vector spaces to learn about the concepts of image and kernel. Let's get a closer look Script by Howard Whittle Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials:"
YouTube Link 2019-05-29T17:19Z 4.2M followers, 273.1K engagements
"Relative Motion and Inertial Reference Frames Did you know that everything is moving Even you as you're sitting perfectly still because the earth is moving and the sun and the galaxy and so forth. For this reason it only makes sense to talk about the motion of some object relative to some other object just as Galileo told us. Watch this and see what I mean Watch the whole Classical Physics playlist: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials: http://bit.ly/ProfDaveMaths General Chemistry Tutorials:"
YouTube Link 2017-02-10T18:54Z 4.2M followers, 915.2K engagements
"Kinetics: Initial Rates and Integrated Rate Laws Who likes math Oh you don't Maybe skip this one on kinetics. Unless you have to answer this stuff for class. Then yeah watch this. Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2"
YouTube Link 2015-12-23T01:47Z 4.2M followers, 1.6M engagements
"Nucleophiles Electrophiles Leaving Groups and the SN2 Reaction This is it The start of the very scary reaction mechanisms Take it easy chief. First we will define nucleophiles electrophiles and leaving groups. Then we will examine the mechanism transition state and stereospecificity of the SN2 reaction. Push those electrons Watch the whole Organic Chemistry playlist: http://bit.ly/ProfDaveOrgChem General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials:"
YouTube Link 2015-01-05T01:31Z 4.2M followers, 509.5K engagements
"Newton's Third Law of Motion: Action and Reaction Are you tired of Newton's laws of motion yet Well lucky you this is the last one. And it's the most misunderstood as well People love making inappropriate metaphors with scientific principles unfortunately. Watch this to make sure you don't do the same Watch the whole Classical Physics playlist: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials: http://bit.ly/ProfDaveMaths General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials:"
YouTube Link 2017-02-23T16:58Z 4.2M followers, 1M engagements
"Order of Arithmetic Operations: PEMDAS Sometimes there are expressions that contain a number of different arithmetic operations. But how do we evaluate these Left to right Right to left Does it matter Someone make a decision Well someone did and we have a strict algorithm that tells us the order in which we evaluate arithmetic expressions. It's an acronym and acronyms are fun so this will be fun Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General Chemistry"
YouTube Link 2017-08-19T15:56Z 4.2M followers, 188.3K engagements
"Heat Capacity Specific Heat and Calorimetry We can use coffee cups to do simple experiments to figure out how quickly different materials heat up and cool down. It's called calorimetry. Take a look Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials:"
YouTube Link 2015-11-26T01:42Z 4.2M followers, 1.2M engagements
"Neural Conduction Action Potential and Synaptic Transmission We have probably heard that neurons are the cells that transmit information around the body. But how does this work Is it actual electricity Like from the wall socket What is a synapse What happens there in between one neuron and the next This is a really big and really important topic so let's dive in. Watch the whole Biopsychology playlist: http://bit.ly/ProfDaveBiopsych General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials:"
YouTube Link 2019-08-28T16:37Z 4.2M followers, 447.9K engagements
"CD4+ T Cells Now that we have some basic information regarding T cell development as well as their activation through antigen processing and presentation let's take a look at the specific types of T cells and what they do once activated. First we will examine CD4+ T cells. These play a central role in providing immune protection against pathogens. They can differentiate into many subtypes so what are those and what do they do Let's find out Script by Niyati Vachharajani Select images provided by BioRender.com Watch the whole Immunology playlist: http://bit.ly/ProfDaveImmuno General Chemistry"
YouTube Link 2024-09-04T14:00Z 4.2M followers, 23.1K engagements
"The Brain and Language The way that humans communicate is very complex. We have an innate ability to understand and formulate language. As one might imagine the accompanying brain activity is also quite complex involving several different regions with very specific functions. Let's go in for a closer look Watch the whole Biopsychology playlist: http://bit.ly/ProfDaveBiopsych General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology/Genetics Tutorials:"
YouTube Link 2020-01-14T16:37Z 4.2M followers, 227.1K engagements
"Metabolism and ATP How does your body break down the food you eat to generate the energy you need to get through your day What form of energy is this anyway Let's go over some of the basics of metabolic processes and introduce ATP the currency of cellular energy. Watch the whole Biochemistry playlist: http://bit.ly/ProfDaveBiochem General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials:"
YouTube Link 2016-09-13T16:04Z 4.2M followers, 457.8K engagements
"Graphing Lines in Standard Form (ax + by = c) Now that we have slope-intercept form under our belt let's learn the standard form for the equation of a line. This one makes it easy to find the intercepts and also graph the line very quickly so it has its advantages We will also learn how to convert between the two forms. Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials:"
YouTube Link 2017-10-06T15:28Z 4.2M followers, 258.4K engagements
"Terrence Howard and Bill Maher Have an Idiot Contest Terrence Howard is all over the place recently After humiliating himself on the PBD podcast he decided to jump on Bill Maher's Club Random podcast and continue the insanity. Normally I would avoid doing another Terry video so soon after the last one but Bill Maher really sucks a lot so this was the perfect opportunity to make fun of him too. You'll be just as shocked as I was that Bill stays neck and neck with Terry in terms of sheer stupidity the entire show. Enjoy Watch all of my videos on Terrence: http://bit.ly/ProfDaveTerry Kyle"
YouTube Link 2025-05-08T14:00Z 4.2M followers, 542K engagements
"Antitussives: Halting the Coughing Reflex (Codeine Dextromethorphan Tessalon) The next class of drugs is antitussives and these are intended to halt the cough reflex. Tussis or coughing is a complex physiological response to irritants in the airways and certain drugs seek to dampen this response when harmful to a patient. Let's discuss the pathways responsible for tussis and the types of drugs that can interact with these pathways and inhibit them such as codeine dextromethorphan and Tessalon. Script by Michael Keith Watch the whole Pharmacology playlist: http://bit.ly/ProfDavePharma General"
YouTube Link 2023-01-04T15:30Z 4.2M followers, 73.8K engagements
"The Vector Dot Product We learned how to add and subtract vectors and we learned how to multiply vectors by scalars but how can we multiply two vectors together There are two ways to do this and one of them is called the dot product. Let's learn how to find the dot product of two vectors now Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem"
YouTube Link 2018-09-12T14:49Z 4.2M followers, 1.2M engagements
"Fluids Buoyancy and Archimedes' Principle Archimedes is not just the owl from the Sword in the Stone. Although that's a sweet movie if you haven't seen it. He was also an old Greek dude who figured out a bunch of physics way before other people did. Some of this was discovered at bath time so it has a lot to do with water but don't get all weird about it just listen to the old man in the tub. He's smarter than he looks. Watch the whole Classical Physics playlist: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials:"
YouTube Link 2017-03-22T16:30Z 4.2M followers, 817.9K engagements
"Logarithms Part 1: Evaluation of Logs and Graphing Logarithmic Functions What are logs No not like the ones from trees silly We need to know about logarithms. They represent the inverse operation of exponentiation. How do they work How do we evaluate them How do we graph them Let's go through the basics now. Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials:"
YouTube Link 2017-11-30T16:57Z 4.2M followers, 155.2K engagements
"The Muscular System Now that we know about muscle tissue let's see how this is arranged to form the muscular system the incredible network of muscles that covers the skeletal system so that it can pull on bones and allow us to move around at will. There are hundreds of muscles so we won't cover them all but we will learn some basic ways of categorizing and naming them and take a look at a bunch of them too Watch the whole Anatomy & Physiology playlist: http://bit.ly/ProfDaveAnatPhys General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials:"
YouTube Link 2019-02-14T16:18Z 4.2M followers, 1.4M engagements
"Hess's Law and Heats of Formation How can we calculate the enthalpy change of a reaction without doing it There are two easy ways This is how we can make sure a reaction won't explode in our faces Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials:"
YouTube Link 2015-11-23T15:24Z 4.2M followers, 938.5K engagements
"Bones: Structure and Types We've got the skin covered so now let's take a look at bones These give structure to the body. Bone is a type of tissue but an actual complete bone is an organ because there is lots of stuff inside besides bone. What else is in there Find out here Watch the whole Anatomy & Physiology playlist: http://bit.ly/ProfDaveAnatPhys General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology/Genetics Tutorials: http://bit.ly/ProfDaveBio Biopsychology"
YouTube Link 2018-12-21T19:29Z 4.2M followers, 1.2M engagements
"Frictional Forces: Static and Kinetic Newton's first law tells us that an object in motion will remain in motion but we don't really see that on earth do we If you throw a ball or push a hockey puck these things do eventually stop. Why To answer this we must learn about static and kinetic friction Watch the whole Classical Physics playlist: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials: http://bit.ly/ProfDaveMaths General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem"
YouTube Link 2017-03-02T16:46Z 4.2M followers, 880.5K engagements
"The Early Middle Ages: Charlemagne and His Successors Let's kick off our study of the Middle Ages by looking at Western Europe. The Roman Empire had splintered into two halves. In the east there was the Byzantine Empire but the west had split up into separate kingdoms rules by various Germanic tribes. Over time this morphed into the Holy Roman Empire based in modern day Germany. Charlemagne was the first ruler of this empire so let's learn about him and other associated figures. Script by Peter Wyetzner Watch the whole World History playlist: http://bit.ly/ProfDaveWorldHistory American"
YouTube Link 2026-02-13T15:00Z 4.2M followers, [----] engagements
"Angiotensin-Converting Enzyme Inhibitors (ACE Inhibitors) After covering some drugs that regulate pulmonary activity it's time to move on to cardiovascular function. How can certain drugs help keep the heart beating and blood pumping Let's examine this class of drugs starting with angiotensin-converting enzyme inhibitors or ACE inhibitors. These treat high blood pressure. How do they do it Let's find out Script by Michael Keith Watch the whole Pharmacology playlist: http://bit.ly/ProfDavePharma General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials:"
YouTube Link 2024-01-17T15:00Z 4.2M followers, 67.2K engagements
"Types of Tissue Part 4: Nervous Tissue We've learned about epithelial tissue connective tissue and muscle tissue so now it's time to learn about the fourth and final type nervous tissue That means all the neurons that send signals around your body. These make up the nervous system which is very complicated so let's make sure we understand neurons before we dive into that Watch the whole Anatomy & Physiology playlist: http://bit.ly/ProfDaveAnatPhys General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials:"
YouTube Link 2019-02-21T16:56Z 4.2M followers, 921.9K engagements
"Position/Velocity/Acceleration Part 1: Definitions If we are going to study the motion of objects we are going to have to learn about the concepts of position velocity and acceleration. More scalars and vectors Once we get this stuff out of the way we can really get cooking. Watch the whole Classical Physics playlist: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials: http://bit.ly/ProfDaveMaths General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry"
YouTube Link 2017-01-12T17:39Z 4.2M followers, 1.2M engagements
"Wavefunction Properties Normalization and Expectation Values We are beginning to get a glimpse of quantum mechanical principles from a rigorous mathematical perspective. Now that we know how to use operators in conjunction with wavefunctions let's get a better sense of what wavefunctions actually are and how their superpositions can describe the parameters of a quantum particle. Along with this we will learn about bra-ket notation how to normalize wavefunctions and also calculate both inner products and expectation values all of which will help us get a better perspective on quantum systems."
YouTube Link 2020-08-12T15:33Z 4.2M followers, 188.4K engagements
"Social Psychology Part 1: The Power of Situation and Framing Social psychology is an enormous field which studies how people's thoughts feelings and beliefs are constructed within the context of interactions with other members of society. Why do we act differently around different people How do we develop and maintain our belief systems What is confirmation bias What is social facilitation Let's dig into this hefty topic now Script by Caitlyn Finton Animation by Ignacio Triana: https://www.youtube.com/c/Unraveled Watch the whole Psychology playlist: http://bit.ly/ProfDavePsych General"
YouTube Link 2022-05-31T15:21Z 4.2M followers, 134.1K engagements
"Conductivity and Semiconductors Why do some substances conduct electricity while others do not And what is a semiconductor If we aim to learn about engineering and technology this will be a very important concept so let's go through the basics now Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials:"
YouTube Link 2019-08-23T16:21Z 4.2M followers, 243K engagements
"The Easiest Way to Memorize the Trigonometric Unit Circle This is the thing that has kept you up at night all week That darn unit circle So many roots and fractions and pies how will you get it all in your head Actually it's super easy to memorize the unit circle if you know a few tricks so check this out and rest easy tonight Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials:"
YouTube Link 2018-01-03T18:33Z 4.2M followers, 537K engagements
"Italian Counting Numbers A very basic thing in any language is learning how to count. You will use the numbers from one through ten constantly When you tell time when you interact with people at the market or around town you name it. So these first few must be memorized But from there it becomes quite simple to build out any other number imaginable so let's hit all the basic number-related vocabulary right now Script by Patrizia Farina Professor of Italian at Western Connecticut State University and Purchase College. Watch the whole Italian playlist: http://bit.ly/ProfDaveItalian American"
YouTube Link 2018-01-10T16:13Z 4.2M followers, 1.1M engagements
"Destroying Flat Earth Without Using Science - Part 4: The Conspiracy It may seem like I've said all there is to say about the flat earth phenomenon that dumbest hoax on the internet but we haven't yet examined the conspiracy itself. What would have to be true for this scam to be pulled off Rather incredibly without making a single observation or knowing anything about science whatsoever even just the story of the con itself falls apart quite laughably upon the slightest bit of scrutiny. Let's check it out. Part [--] in this series: https://www.youtube.com/watchv=_bHqBy92iGM Part [--] in this"
YouTube Link 2020-12-11T19:11Z 4.2M followers, 2.2M engagements
"Evaluating Integrals With Trigonometric Functions Now that we have the basics down regarding integration it's time to start looking at trickier functions and eventually more complex integrands. First we will see trig functions inside integrands all the time. How do we integrate these Well if we remember the derivatives of the trig functions it won't be too hard Watch the whole Calculus playlist: http://bit.ly/ProfDaveCalculus Watch the whole Mathematics playlist: http://bit.ly/ProfDaveMath Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials:"
YouTube Link 2018-05-02T15:16Z 4.2M followers, 315.7K engagements
"Calculating Ion Concentrations in Solution We know that concentration is typically expressed with molarity which is moles per liter. But how do we know how many moles of solute are present in solution when an ionic solid dissolves in water It's not so simple because these will dissociate into individual ions so there is some extra stoichiometry to do Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials:"
YouTube Link 2018-10-19T15:50Z 4.2M followers, 216.2K engagements
"Types of Tissue Part 3: Muscle Tissue With epithelial tissue and connective tissue down it's time to learn about the third type of tissue and that's muscle tissue. This makes up all the muscles in our bodies and it comes in three types. Those are skeletal muscle cardiac muscle and smooth muscle. Let's look at the similarities and differences between these types of muscle tissue now Watch the whole Anatomy & Physiology playlist: http://bit.ly/ProfDaveAnatPhys General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry"
YouTube Link 2019-01-31T17:38Z 4.2M followers, 1M engagements
"Hard/Soft Acid-Base Theory We certainly know about acids and bases and we know about the Lewis model of acidity and basicity. In transition metal complexes the metal centers are acting as Lewis acids and the ligands are acting as Lewis bases. But certain types of acids and bases interact best in this context. Hard acids interact best with hard bases and soft acids interact best with soft bases. What do we mean by hard and soft Watch this and find out Watch the whole Inorganic/Organometallic Chemistry playlist: http://bit.ly/ProfDaveInorganic General Chemistry Tutorials:"
YouTube Link 2022-12-23T15:30Z 4.2M followers, 69.7K engagements
"Advanced Strategy for Integration in Calculus Our bag of tricks for integration is complete Now it's time to put all our knowledge to use and evaluating integrals without any context. What strategy should we use in each case Watch me work through them or pause the clip on each example and give them a try Remember we know how to use the substitution rule integration by parts and integration by trigonometric substitution. We may have to do other clever manipulations too. You can do it Watch the whole Calculus playlist: http://bit.ly/ProfDaveCalculus Watch the whole Mathematics playlist:"
YouTube Link 2018-05-17T15:04Z 4.2M followers, 148.5K engagements
"The Laws of Thermodynamics Entropy and Gibbs Free Energy We've all heard of the Laws of Thermodynamics but what are they really What the heck is entropy and what does it mean for the fate of the universe How does soap work So many questions answered in this clip Enjoy More thorough thermodynamics tutorials: https://www.youtube.com/watchv=S2hsaTO0bO8&index=28&t=99s&list=PLybg94GvOJ9HjfcQeJcNzLUFxa4m3i7FW Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials:"
YouTube Link 2015-12-16T17:26Z 4.2M followers, 3.1M engagements
"The Endocrine System You've probably heard of glands and hormones especially since we learned a little about how hormones interact with receptors in the biochemistry series but what are they in the greater context of human anatomy and physiology Let's dive into the endocrine system and find out Watch the whole Anatomy & Physiology playlist: http://bit.ly/ProfDaveAnatPhys General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology/Genetics Tutorials: http://bit.ly/ProfDaveBio"
YouTube Link 2019-03-21T16:22Z 4.2M followers, 963.3K engagements
"History of Atomic Theory We all know that atoms exist. But we didn't always A lot of people contributed in different ways to help develop our current understanding of atomic structure starting all the way back in Ancient Greece. Grab some popcorn and let Professor Dave tell you the story Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio"
YouTube Link 2015-06-22T22:56Z 4.2M followers, 968.3K engagements
"The Immune System: Innate Defenses and Adaptive Defenses There are so many critters out there bacteria and viruses that want to wreak havoc in our bodies. How do we defend ourselves against such tiny threats The immune system This is quite possibly the most profoundly remarkable aspect of the human body. It almost defies comprehension the resourcefulness and efficiency of this system. An in-depth analysis will require an entire separate immunology course which will come in the future let's just get our feet wet for the moment Watch the whole Anatomy & Physiology playlist:"
YouTube Link 2019-04-25T17:33Z 4.2M followers, 617.5K engagements
"Must Scientists Do Science Communication Should scientists be expected to engage in science communication Not necessarily. They should be encouraged. But there are other ways they can be of assistance in the scicomm endeavor. Watch all my debunks/debates/discussions: http://bit.ly/ProfDaveDebunk EMAIL ProfessorDaveExplains@gmail.com PATREON http://patreon.com/ProfessorDaveExplains Check out "Is This Wi-Fi Organic" my book on disarming pseudoscience Amazon: https://amzn.to/2HtNpVH Bookshop: https://bit.ly/39cKADM Barnes and Noble: https://bit.ly/3pUjmrn science communication scicomm scientists"
YouTube Link 2026-02-12T21:00Z 4.2M followers, 14.3K engagements
"Structure Of The Cell Membrane: Active and Passive Transport What is it that separates what's inside a cell from what's outside of a cell Why that's the cell membrane. What's it made out of How does it work How do molecules get in and out of the cell These are super-important concepts Let's take a look. Watch the whole Biochemistry playlist: http://bit.ly/ProfDaveBiochem General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biology Tutorials: http://bit.ly/ProfDaveBio Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1"
YouTube Link 2016-09-05T20:24Z 4.2M followers, 871.5K engagements
"Exposing Discovery Institute Part 2: Stephen Meyer Who loves exposing and humiliating charlatans Who loves pushing back against religious propaganda If you love both you are in the right place In this series I am exposing all of the creationist charlatans at the Discovery Institute. With Casey Luskin in the garbage can we move on to Stephen Meyer. He's one of the cofounders of the DI and one of the most frequently cited of these bozos due to his books full of lies. Though he tells many many many lies in this video I will focus on his lies regarding the fossil record and genetics. As you can"
YouTube Link 2022-05-13T14:34Z 4.2M followers, 1M engagements
"Quantum Numbers Atomic Orbitals and Electron Configurations Orbitals Oh no. They're so weird. Don't worry nobody understands these in first-year chemistry. You just pretend to and then in second-year you learn them a little better the following year a little better and once you have a PhD you will know what they are. But let Professor Dave give you a head start Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem Study for the AP Chemistry exam with me: https://bit.ly/ProfDaveAPChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials:"
YouTube Link 2015-08-31T16:07Z 4.2M followers, 5.4M engagements
"Russell Brand Sucks a Lot Russell Brand is a disgusting figure who has pivoted to the right and feigned conversion to Christianity to shield himself from countless accusations of sexual abuse. Let's mock him for a bit. Watch all my debunks/debates/discussions: http://bit.ly/ProfDaveDebunk EMAIL ProfessorDaveExplains@gmail.com PATREON http://patreon.com/ProfessorDaveExplains Check out "Is This Wi-Fi Organic" my book on disarming pseudoscience Amazon: https://amzn.to/2HtNpVH Bookshop: https://bit.ly/39cKADM Barnes and Noble: https://bit.ly/3pUjmrn russell brand conversion to christianity"
YouTube Link 2026-02-05T21:00Z 4.2M followers, 49.9K engagements
"Chromosome Structure and Organization We've all seen pictures of chromosomes and we know that they contain DNA. But how do we get from the double helix of DNA to the X-looking shape of a chromosome Is it just DNA or are there other things in there How much DNA is in each chromosome Chromosomal structure is incredibly complicated but now that we've learned about DNA and proteins as well as Mendelian genetics for a little context we are finally ready to get a more sophisticated view of what's inside a chromosome. Watch the whole Biology/Genetics playlist: http://bit.ly/ProfDaveBio General"
YouTube Link 2017-10-11T17:41Z 4.2M followers, 532.5K engagements
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