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Professor Dave Explains

Professor Dave Explains

Welcome! I have a knack for explaining stuff and I want to share some knowledge with you.

I received a BA in chemistry from Carleton College, and performed graduate studies in both synthetic organic chemistry and science education at Cal State Northridge, receiving an MA in the latter. Prior to this I taught for about a decade in various high school and undergraduate settings, specializing in organic chemistry but also teaching general chemistry, physics, and biology.

This channel is for students at the high school and undergraduate level, but it is also for members of the general public who just want to know more about the world and how things work. My goal is to increase science literacy in our society, so please share these tutorials with anyone that you think might enjoy them. Happy learning!

Support my channel: https://www.patreon.com/professordaveexplains

Check out my book "Is This Wi-Fi Organic?": https://amzn.to/2HtNpVH

OChem help here: https://chemmunity.info/dave

Links:
Support Dave: http://patreon.com/professordaveexplains
Facebook: http://facebook.com/professordaveexplains
Instagram: http://instagram.com/daveexplains
Amazon Author: https://www.amazon.com/~/e/B08W2749Y9

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Counted on this page — what you have heard stays on this device, so it is not something the list can be paged by.
  • September 30 · 1 hr 38 min

    Grifter Tier List 2026 Expansion Pack!

    Remember when I did a tier list to decide who the biggest scumbag is that I've debunked? Well that was a year ago, and I've debunked so many more people since then, so let's do it again! Place your bets, everyone! My first tier list video: https://youtu.be/xseZgXwVQrk Watch all my debunks: 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 Learn more about your ad choices. Visit megaphone.fm/adchoices

  • September 30 · 16 min

    Resonance Structures/Assigning Formal Charge

    Resonance is pretty weird. Let Professor Dave explain it to you. He will discuss the resonance structures for the carbonate and nitrate ions, and also provide the simplest possible explanation for how assign formal charges to atoms within a molecule. 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 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 Book Depository: http://bit.ly/3aOVDlT Learn more about your ad choices. Visit megaphone.fm/adchoices

  • September 30 · 7 min

    Reptilian Diversity Part 2: Form and Function of the Squamates

    With three of the four orders of extant reptiles covered, it's time to move on to the fourth and largest, Squamata. This has all the lizards and snakes, and some other stuff. First let's go over their form and function. Script by Ryan Helcoski Watch the whole Zoology playlist: http://bit.ly/ProfDaveZoo General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Anatomy & Physiology Tutorials: http://bit.ly/ProfDaveAnatPhys Microbiology Tutorials: http://bit.ly/ProfDaveMicrobio Botany Tutorials: http://bit.ly/ProfDaveBotany 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 Book Depository: http://bit.ly/3aOVDlT Learn more about your ad choices. Visit megaphone.fm/adchoices

  • September 30 · 7 min

    IUPAC Nomenclature of Haloalkanes and Alcohols

    More IUPAC nomenclature! Here we look at alkanes with halogen and hydroxyl substituents. Dave loves alcohols. Learn Organic Chemistry the easy way with Professor Dave! 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 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 Book Depository: http://bit.ly/3aOVDlT Learn more about your ad choices. Visit megaphone.fm/adchoices

  • September 30 · 6 min

    Practice Problem: Pendulum Velocity

    Now you're really getting advanced with your building skills. Check out this pendulum. It's a good thing we know about potential energy and kinetic energy, because that will allow us to calculate the velocity of the pendulum at any instant. Give it a try! Try all of the Classical Physics Practice Problems: http://bit.ly/ProfDaveCPPP Classical Physics Tutorials: 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 Tutorials: http://bit.ly/ProfDaveBio 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 Book Depository: http://bit.ly/3aOVDlT Learn more about your ad choices. Visit megaphone.fm/adchoices

  • September 30 · 10 min

    Unicellular Life Part 2: Archaea and Protists

    Everyone knows about bacteria, but there are tons of other unicellular species! Archaea are prokaryotes just like bacteria, but they live in some pretty weird places, which teaches us a lot about the kinds of conditions life can thrive in. Then there are a wide variety of unicellular eukaryotes, and they can do all kinds of different things. Let's take a look at all these critters! 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 Tutorials: http://bit.ly/ProfDaveMicrobio Pharmacology Tutorials: http://bit.ly/ProfDavePharma History of Drugs Videos: http://bit.ly/ProfDaveHistoryDrugs 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 Book Depository: http://bit.ly/3aOVDlT Learn more about your ad choices. Visit megaphone.fm/adchoices

  • September 30 · 44 min

    Dealing With a Dense Creationist (Featuring Aron Ra)

    Sometimes I do these call-in shows where creationists try to explain to me how they aren't objectively wrong and brainwashed. It never goes well for them. Here we have a Torah enthusiast trying to defend the veracity of his scripture, while Aron Ra and I give him a few things to think about. Please enjoy if you're into this sort of thing. Watch the full 6/28/26 episode featuring more callers on the Skeptic Haven channel: https://www.youtube.com/watch?v=SETpc_VK9WA Watch my other 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 Learn more about your ad choices. Visit megaphone.fm/adchoices

  • September 30 · 8 min

    IUPAC Nomenclature of Cyclic Compounds

    Look at the pretty shapes! One more bit of IUPAC nomenclature, this time for cyclic molecules. You know, like cyclohexane and what not. 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 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 Book Depository: http://bit.ly/3aOVDlT Learn more about your ad choices. Visit megaphone.fm/adchoices

  • September 30 · 1 hr 12 min

    EPA Head Lee Zeldin is a Freaking Nightmare

    Trump's second-term cabinet is the stuff of nightmares. I've talked about Bobby Kennedy's dismantling of HHS quite a bit, but it's not just public health that is in shambles under this administration. The environment is on the chopping block as well, especially under new EPA head Lee Zeldin. The person who is supposed to be in charge of protecting the citizenry by preventing the private sector from polluting our air and water is actively siding with the polluters and making sure they have all the freedom to pollute as much as they want. It's difficult to describe how much of a worthless cretin this guy is, but let's give it a shot. Overview of PFAS treatments: https://www.nature.com/articles/s41545-025-00457-3 My video on Matt Ridley: https://youtu.be/C-gdabZooKo My video on Russ Vought's OMB ruling: https://youtu.be/YxUgs4YVlOw My video on Bobby Kennedy: https://youtu.be/HqI_z1OcenQ 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 Learn more about your ad choices. Visit megaphone.fm/adchoices

  • September 30 · 18 min

    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: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials: http://bit.ly/ProfDaveMath 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 Book Depository: http://bit.ly/3aOVDlT Learn more about your ad choices. Visit megaphone.fm/adchoices

  • September 30 · 5 min

    Expressing Time in Latin

    How did the Ancient Romans tell time throughout the day? There are a few ways to do this. Let's learn about ablativus temporis, which describes the time when or within which an action occurred, as well as some other ways of expressing time in Latin. Script by Patrizia Farina, Professor of Italian at Western Connecticut State University and Purchase College. Watch the whole Latin playlist: http://bit.ly/ProfDaveLatin Italian Tutorials: http://bit.ly/ProfDaveItalian American History Tutorials: http://bit.ly/ProfDaveAmericanHistory Philosophy Tutorials: http://bit.ly/ProfDavePhilo 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: http://bit.ly/ProfDaveBio 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 Book Depository: http://bit.ly/3aOVDlT Learn more about your ad choices. Visit megaphone.fm/adchoices

  • September 30 · 10 min

    IUPAC Nomenclature of Alkenes and Alkynes

    More IUPAC nomenclature! Now let's look at molecules with carbon-carbon double and triple bonds. We will look at alkynes of alkenes. Get it? 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 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 Book Depository: http://bit.ly/3aOVDlT Learn more about your ad choices. Visit megaphone.fm/adchoices

  • September 30 · 10 min

    The Beginnings of Human Civilization

    For a long time humans were hunter-gatherers. But at a certain point, human civilization began to flourish. This involved large cities of thousands of people, social stratification, trade specialization, and record-keeping. Agriculture was a big part of this transition as well. So what were the first human civilizations and what can we say about them from the standpoint of archeology? Script by Robert Williams Watch the whole Anthropology playlist: http://bit.ly/ProfDaveAnthro General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio Anatomy & Physiology Tutorials: http://bit.ly/ProfDaveAnatPhys Microbiology Tutorials: http://bit.ly/ProfDaveMicrobio Botany Tutorials: http://bit.ly/ProfDaveBotany Zoology Tutorials: http://bit.ly/ProfDaveZoo 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 Book Depository: http://bit.ly/3aOVDlT Learn more about your ad choices. Visit megaphone.fm/adchoices

  • September 30 · 11 min

    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: 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: http://bit.ly/ProfDaveBio 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 Book Depository: http://bit.ly/3aOVDlT Learn more about your ad choices. Visit megaphone.fm/adchoices

  • September 30 · 12 min

    Kyivan Rus' Part 2: Vladimir the Great and Yaroslav

    We talked about the foundation and expansion of Kievan Rus, so now let's move forward and talk about some of its most historic rulers. The son of Prince Sviatoslav was named Vladimir the Great, who mass converted the citizens to Christianity. His son Yaroslav succeeded him, and established the first Slavic code of laws. Let's learn all about them! 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: 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: http://bit.ly/ProfDaveBio 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 Learn more about your ad choices. Visit megaphone.fm/adchoices

  • September 30 · 6 min

    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► 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 Book Depository: http://bit.ly/3aOVDlT Learn more about your ad choices. Visit megaphone.fm/adchoices

  • September 30 · 2 hr 14 min

    Michael Button: Rising Pseudoarcheology Fraud

    It's time to expose another worthless pseudoarcheology fraud! With some obvious targets out of the way, let's hit one of the newer rising stars, Michael Button. He's essentially a Graham Hancock clone. Same script full of lies, same accent, same demeanor, same everything. He seems to be hoping to be passed the torch, and Graham seems to approve. If you saw through toxic douchebags like Dan and Jimmy, but you were clinging to this guy as some kind of voice for truth, think again. Every video is jam packed with lies and deception. Let's debunk the crap out of his content, as well as his Joe Rogan episode. Population dynamics of mid-Holocene: https://www.nature.com/articles/s41598-023-35920-z Trump's Malta research: https://www.um.edu.mt/library/oar/bitstream/123456789/9224/1/Megalithic%20Architecture%20in%20Malta.pdf 4.2 ka event: https://www.um.edu.mt/library/oar/bitstream/123456789/87871/1/The_4_2_ka_event_and_the_end_of_the_Maltese_Temple_Period_2022.pdf Hunter-gatherer sea voyages: https://www.nature.com/articles/s41586-025-08780-y Astronomical alignments in Malta: https://www.researchgate.net/publication/253385376_Investigation_into_the_Possible_Astronomical_Alignments_of_the_Copper_Age_Temples_in_Malta Kalambo Falls find: https://www.nature.com/articles/s41586-023-06557-9 Lidar in the Amazon: https://www.nature.com/articles/s41586-022-04780-4 Watch all my Pseudoarcheology Debunks: http://bit.ly/ProfDavePseudoarch Watch my Anthropology/Archeology Tutorials: http://bit.ly/ProfDaveAnthro Watch my other 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 Learn more about your ad choices. Visit megaphone.fm/adchoices

  • September 30 · 3 min

    E1 Reaction

    Here we examine the mechanism for the E1 reaction. Don't worry, it's just these four for 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 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 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 Book Depository: http://bit.ly/3aOVDlT Learn more about your ad choices. Visit megaphone.fm/adchoices

  • September 30 · 15 min

    Dark Matter and Dark Energy: Possibilities and Projections

    We've all heard of dark matter and dark energy. But what are they? What do we know about them? Have we ruled out any possibilities? Why do we believe they exist in the first place? Let's talk about it! Script by Andrew Mattson, Physics PhD Student at Johns Hopkins University 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: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tutorials: http://bit.ly/ProfDaveBio 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 Learn more about your ad choices. Visit megaphone.fm/adchoices

  • September 30 · 10 min

    Three-Dimensional Shapes Part 1: Types, Calculating Surface Area

    Enough of this two-dimensional, stuck in one plane rubbish! The real world has three spatial dimensions! Technically more, but we very clearly interact with three all the time, so it's time to start talking about three-dimensional shapes like pyramids and prisms and cylinders and cones, and the characteristics they possess. 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: http://bit.ly/ProfDaveBio 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 Book Depository: http://bit.ly/3aOVDlT Learn more about your ad choices. Visit megaphone.fm/adchoices

Showing 401–420 of 474 episodes