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CrashCourse

At Crash Course, we believe that high-quality educational videos should be available to everyone for free! Subscribe for weekly videos from our current courses! The Crash Course team has produced more than 60 courses on a wide variety of subjects, ranging from the humanities to sciences and so much more! We also recently teamed up with Arizona State University to bring you more courses on the Study Hall channel.

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  • October 20 · 17 min

    The Future of Botany: Crash Course Botany #15

    We’ve learned a lot about plants throughout this series, but there’s much more to discover. In this episode of Crash Course Botany, we’ll peek into the future of botany. We’ll consider current plant mysteries, bridges between Western science and traditional knowledge, and what it might take to garden on the moon. Chapters: Our Plant Elders 00:00 Plant Sensory Perception 1:35 Plant Communication 3:24 Plants in Space 5:06 Ethnobotany 7:11 Solving Global Problems with Plants 9:03 Review & Credits 11:15 Sources: https://docs.google.com/document/d/1PB6WdUJcABAccO-U-t6ic7WbfP2z0Pr5P9a8HMr6zh4/edit?usp=sharing *** Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse Thanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever: Leah H., David Fanska, Andrew Woods, Tawny Whaley, Sean Saunders, DL Singfield, Ken Davidian, Stephen Akuffo, Toni Miles, Steve Segreto, Kyle & Katherine Callahan, Laurel Stevens, Burt Humburg, Aziz Y, Perry Joyce, Scott Harrison, Mark & Susan Billian, Alan Bridgeman, Breanna Bosso, Matt Curls, Jennifer Killen, Starstuff42, Jon Allen, Sarah & Nathan Catchings, team dorsey, Bernardo Garza, Trevin Beattie, Eric Koslow, Indija-ka Siriwardena, Jason Rostoker, Siobhán, Ken Penttinen, Nathan Taylor, Les Aker, William McGraw, Vaso, ClareG, Rizwan Kassim, Constance Urist, Alex Hackman, Pineapples of Solidarity, Katie Dean, Stephen McCandless, Wai Jack Sin, Ian Dundore, Caleb Weeks __ Want to find Crash Course elsewhere on the internet? Instagram - https://www.instagram.com/thecrashcourse/ Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse CC Kids: http://www.youtube.com/crashcoursekids Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 20 · 14 min

    Polymers: Crash Course Chemistry #45

    Did you know that Polymers save the lives of Elephants? Well, now you do! The world of Polymers is so amazingly integrated into our daily lives that we sometimes forget how amazing they are. Here, Hank talks about how they were developed, and the different types of Polymers that are common in the world today, including some that may surprise you. Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App! Download it here for Apple Devices: https://apple.co/3d4eyZo Download it here for Android Devices: https://bit.ly/2SrDulJ -- Table of Contents Commercial Polymers & Saved Elephants 0:00 Ethene AKA Ethylene 2:29 Addition Reactions 3:08 Ethene Based Polymers 4:44 Addition Polymerization & Condensation Reactions 6:32 Proteins & Other Natural Polymers 8:33 -- Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Instagram - https://www.instagram.com/thecrashcourse/ CC Kids: http://www.youtube.com/crashcoursekids Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 20 · 12 min

    Hydrocarbon Derivatives: Crash Course Chemistry #43

    Functional groups? Functional groups within functional groups? Hank takes today's Crash Course video to discuss some confusing ideas about Hydrocarbon Derivatives but then makes it all make more sense. Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App! Download it here for Apple Devices: https://apple.co/3d4eyZo Download it here for Android Devices: https://bit.ly/2SrDulJ -- Table of Contents Alcohols 1:53 Hydroxyl Groups 3:51 Aldehydes 2:47 Carboxylic Acid 4:06 Acetone is a Ketone 4:43 Ethers and Esters 5:49 Amines 6:39 -- Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Instagram - https://www.instagram.com/thecrashcourse/ CC Kids: http://www.youtube.com/crashcoursekids Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 20 · 18 min

    Speciation: Where Do Species Come From?: Crash Course Biology #15

    How can you tell two species apart? It’s not always simple. In this episode of Crash Course Biology, we’ll learn about speciation—a process that can happen over millions of years, or within a single generation. Along the way, we’ll discover how a single species can split into two and how a reptile from New Zealand continues to stump scientists. Chapters: A Living Fossil 00:00 Species & Evolution 2:16 Species Concepts 3:36 What Separates Species 5:40 Allopatric Speciation 6:52 Sympatric Speciation 8:38 Review & Credits 11:48 This series was produced in collaboration with HHMI BioInteractive, committed to empowering educators and inspiring students with engaging, accessible, and quality classroom resources. Visit https://BioInteractive.org/CrashCourse for more information. Are you an educator looking for what NGSS Standards are covered in this episode? Check out our Educator Standards Database for Biology here: https://www.thecrashcourse.com/biologystandards Check out our Biology playlist here: https://www.youtube.com/playlist?list=PL8dPuuaLjXtPW_ofbxdHNciuLoTRLPMgB Watch this series in Spanish on our Crash Course en Español channel here: https://www.youtube.com/playlist?list=PLkcbA0DkuFjWQZzjwF6w_gUrE_5_d3vd3 Sources: https://docs.google.com/document/d/1GLDtAXE6ekg4Chk2qN3TYbNt0pJbyaHqTqRd6QY8pd4/edit?usp=sharing *** Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse Thanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever: Tawny Whaley, Sean Saunders, DL Singfield, Ken Davidian, Stephen Akuffo, Toni Miles, Steve Segreto, Kyle & Katherine Callahan, Laurel Stevens, Burt Humburg, Aziz Y, Perry Joyce, Scott Harrison, Mark & Susan Billian, Alan Bridgeman, Breanna Bosso, Matt Curls, Jennifer Killen, Starstuff42, Jon Allen, Sarah & Nathan Catchings, team dorsey, Bernardo Garza, Trevin Beattie, Eric Koslow, Indija-ka Siriwardena, Jason Rostoker, Siobhán, Ken Penttinen, Nathan Taylor, Les Aker, William McGraw, ClareG, Rizwan Kassim, Constance Urist, Alex Hackman, Pineapples of Solidarity, Katie Dean, Stephen McCandless, Wai Jack Sin, Ian Dundore, Caleb Weeks. __ Want to find Crash Course elsewhere on the internet? Instagram - https://www.instagram.com/thecrashcourse/ Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse CC Kids: http://www.youtube.com/crashcoursekids Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 19 · 18 min

    Ford, Carter, and the Economic Malaise: Crash Course US History #42

    In which John Green teaches you about the economic malaise that beset the United States in the 1970s. A sort of perfect storm of events, it combined the continuing decline of America's manufacturing base with the oil shocks of 1973 and 1979 and brought about a stagnant economy, paired with high inflation. Economists with a flair for neologisms and portmanteau words called this "stagflation," and it made people miserable. Two presidential administrations were scuttled at least in part by these economic woes; both Gerald Ford and Jimmy Carter are considered failed presidents for many reasons, but largely because of an inability to improve the economy. (hint: In reality, no one person can materially change something as big as the world economy, even if they are president, but one person sure can make a handy scapegoat!) So, by and large, the 70s were a pretty terrible time in America economically, but at least the decade gave us Mr. Green. Crash Course is no longer available on DVD, sorry to disappoint. Chapters: Introduction: The 1970s 00:00 Economics in the 1970s 1:02 The End of the Gold Standard 2:32 The Decline of American Manufacturing 2:54 Oil Shocks 4:12 Stagflation and the Misery Index 5:16 Gerald Ford's Presidency 5:49 Jimmy Carter's Presidency 6:52 Mystery Document 7:15 Nuclear Power 8:51 Carter's Foreign Policy 9:17 The Economic Crisis of the 1970s 11:18 Credits 12:44 -- Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Instagram - https://www.instagram.com/thecrashcourse/ CC Kids: http://www.youtube.com/crashcoursekids Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 19 · 11 min

    Controlling Bureaucracies: Crash Course Government and Politics #17

    In which Craig Benzine tells you how we keep bureaucracy in check. So we've spent the last few episodes telling you all about what bureaucracies are and why they are formed. And throughout we've hinted about this ever-expanding power within the executive branch. So today, we're going to finish our discussion of bureaucracy by looking at methods the other branches of government use to manage this power. From watch-dog organizations to reporting requirements there has been quite a bit of legislation passed aimed at taming the bureaucracy. Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios Support is provided by Voqal: http://www.voqal.org All Flickr.com images are licensed under Creative Commons by Attribution 2.0 http://creativecommons.org/licenses/by/2.0/legalcode -- Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support Crash Course on Patreon: http://patreon.com/crashcourse CC Kids: http://www.youtube.com/crashcoursekids Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 19 · 18 min

    Evolutionary History: The Timeline of Life: Crash Course Biology #16

    Humans may have been around for a long time, but life has existed for way longer. In this episode of Crash Course Biology, we’ll journey through deep time to uncover the history of life on Earth. We’ll explore the big, game-changing leaps where life diversified, changed, and just plain persisted. Introduction: How Life Began 0:00 Macroevolution 1:15 RNA & DNA 2:43 The Timeline of Life 3:42 Stromatolites & Fossils 6:03 Dr. Meeman Chang 8:31 Drivers of Macroevolution 10:00 Review & Credits 11:56 This series was produced in collaboration with HHMI BioInteractive, committed to empowering educators and inspiring students with engaging, accessible, and quality classroom resources. Visit https://BioInteractive.org/CrashCourse for more information. Are you an educator looking for what NGSS Standards are covered in this episode? Check out our Educator Standards Database for Biology here: https://www.thecrashcourse.com/biologystandards Check out our Biology playlist here: https://www.youtube.com/playlist?list=PL8dPuuaLjXtPW_ofbxdHNciuLoTRLPMgB Watch this series in Spanish on our Crash Course en Español channel here: https://www.youtube.com/playlist?list=PLkcbA0DkuFjWQZzjwF6w_gUrE_5_d3vd3 Sources: https://docs.google.com/document/d/1GLDtAXE6ekg4Chk2qN3TYbNt0pJbyaHqTqRd6QY8pd4/edit?usp=sharing Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse Thanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever: David Fanska, Andrew Woods, Tawny Whaley, Sean Saunders, DL Singfield, Ken Davidian, Stephen Akuffo, Toni Miles, Steve Segreto, Kyle & Katherine Callahan, Laurel Stevens, Burt Humburg, Aziz Y, Perry Joyce, Scott Harrison, Mark & Susan Billian, Alan Bridgeman, Breanna Bosso, Matt Curls, Jennifer Killen, Starstuff42, Jon Allen, Sarah & Nathan Catchings, team dorsey, Bernardo Garza, Trevin Beattie, Eric Koslow, Indija-ka Siriwardena, Jason Rostoker, Siobhán, Ken Penttinen, Nathan Taylor, Les Aker, William McGraw, ClareG, Rizwan Kassim, Constance Urist, Alex Hackman, Pinapples of Solidarity, Katie Dean, Stephen McCandless, Wai Jack Sin, Ian Dundore, Caleb Weeks __ Want to find Crash Course elsewhere on the internet? Instagram - https://www.instagram.com/thecrashcourse/ Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse CC Kids: http://www.youtube.com/crashcoursekids Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 19 · 14 min

    Aromatics and Cyclic Compounds: Crash Course Chemistry #42

    What's that smell? Smell's like Organic Chemistry! This week Hank talks about Aromatics and Cyclic Compounds, naming their substituents, resonance, and common reactions & uses. Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App! Download it here for Apple Devices: https://apple.co/3d4eyZo Download it here for Android Devices: https://bit.ly/2SrDulJ -- Table of Contents Cyclic Organic Compounds & Naming Their Constituents 1:06 Aromatic Compounds 3:02 Resonance 3:18 Naming Aromatic Compounds 5:05 Common Reactions & Uses 7:24 -- Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Instagram - https://www.instagram.com/thecrashcourse/ CC Kids: http://www.youtube.com/crashcoursekids Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 19 · 19 min

    Phylogeny: How We're All Related: Crash Course Biology #17

    Crocodiles, and birds, and dinosaurs—oh my! While classifying organisms is nothing new, phylogeny— or, grouping organisms by their evolutionary relationships—is helping us see life in a whole new light. In this episode of Crash Course Biology, we’ll learn why this kingdom-phylum stuff is going out of style and why phylogenetic trees are in. Chapters: The Platypus & Phylogeny 0:00 Taxonomy 1:33 Systematics 2:44 Phylogeny & Genetics 4:32 Dr. Motoo Kimura 5:31 Phylogenetic Trees 6:56 The Complexities of Evolution 10:49 Review and Credits 12:43 This series was produced in collaboration with HHMI BioInteractive, committed to empowering educators and inspiring students with engaging, accessible, and quality classroom resources. Visit https://BioInteractive.org/CrashCourse for more information. Are you an educator looking for what NGSS Standards are covered in this episode? Check out our Educator Standards Database for Biology here: https://www.thecrashcourse.com/biologystandards Check out our Biology playlist here: https://www.youtube.com/playlist?list=PL8dPuuaLjXtPW_ofbxdHNciuLoTRLPMgB Watch this series in Spanish on our Crash Course en Español channel here: https://www.youtube.com/playlist?list=PLkcbA0DkuFjWQZzjwF6w_gUrE_5_d3vd3 Sources: https://docs.google.com/document/d/1GLDtAXE6ekg4Chk2qN3TYbNt0pJbyaHqTqRd6QY8pd4/edit?usp=sharing *** Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse Thanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever: Adriana Toyber, Leah H., David Fanska, Andrew Woods, Tawny Whaley, Sean Saunders, DL Singfield, Ken Davidian, Stephen Akuffo, Toni Miles, Steve Segreto, Kyle & Katherine Callahan, Laurel Stevens, Burt Humburg, Aziz Y, Perry Joyce, Scott Harrison, Mark & Susan Billian, Alan Bridgeman, Breanna Bosso, Matt Curls, Jennifer Killen, Starstuff42, Jon Allen, Sarah & Nathan Catchings, team dorsey, Bernardo Garza, Trevin Beattie, Eric Koslow, Indija-ka Siriwardena, Jason Rostoker, Siobhán, Ken Penttinen, Nathan Taylor, Barrett & Laura Nuzum, Les Aker, William McGraw, Vaso, ClareG, Rizwan Kassim, Constance Urist, Alex Hackman, Pineapples of Solidarity, Katie Dean, Stephen McCandless, Thomas Greinert, Wai Jack Sin, Ian Dundore, Caleb Weeks __ Want to find Crash Course elsewhere on the internet? Instagram - https://www.instagram.com/thecrashcourse/ Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse CC Kids: http://www.youtube.com/crashcoursekids Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 19 · 17 min

    Women's Experience Under Slavery: Crash Course Black American History #11

    Slavery was inherently cruel and unjust, and it was cruel and unjust to different people in different ways. Today, Clint Smith teaches you about the experience of enslaved women, and how their experience of slavery was different than men. Women had a unique vantage point to understand slavery, and were particularly vulnerable to some terrible abuses under the institution. Clint's book, How the Word is Passed is available now! https://bookshop.org/a/3859/9780316492935 SOURCES - Samuel H. Williamson & Louis Cain, "Measuring Slavery in 2016 dollars," MeasuringWorth, 2020. -"A Prelude to War: The 1850s." African American Lives: The Struggle for Freedom, by Clayborne Carson et al., Pearson Longman, 2005, pp. 221-222. -Modern History Sourcebook: Sojourner Truth: "Ain't I a Woman?", December 1851 -Quoted in Deborah Gray White, Ar' n't I a Woman? Female Slaves in the Plantation South, rev. ed. (New York: Norton, 1999), 102. Watch our videos and review your learning with the Crash Course App! Download here for Apple Devices: https://apple.co/3d4eyZo Download here for Android Devices: https://bit.ly/2SrDulJ Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse Thanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever: Michael M. Varughese, Ben Follows, Kyle & Katherine Callahan, Laurel A Stevens, Chris Routh, Evan Lawrence Henderson, Vincent, Emilee Murphy, Michael Wang, Jordan willis, Krystle Young, Michael Dowling, Alexis B, Rene Duedam, Burt Humburg, Aziz, Nick, DAVID MORTON HUDSON, Perry Joyce, Scott Harrison, Mark & Susan Billian, Junrong Eric Zhu, Alan Bridgeman, Rachel Creager, Jennifer Smith, Matt Curls, Tim Kwist, Jonathan Zbikowski, Jennifer Killen, Sarah & Nathan Catchings, Brandon Westmoreland, team dorsey, Trevin Beattie, Divonne Holmes à Court, Eric Koslow, Indika Siriwardena, Khaled El Shalakany, Jason Rostoker, Shawn Arnold, Siobhán, Ken Penttinen, Nathan Taylor, William McGraw, Andrei Krishkevich, ThatAmericanClare, Rizwan Kassim, Sam Ferguson, Alex Hackman, Eric Prestemon, Jirat, Katie Dean, TheDaemonCatJr, Wai Jack Sin, Ian Dundore, Matthew, Jason A Saslow, Justin, Jessica Wode, Mark, Caleb Weeks __ Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support Crash Course on Patreon: http://patreon.com/crashcourse CC Kids: http://www.youtube.com/crashcoursekids #crashcourse #history #blackhistory Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 19 · 17 min

    Carboxylic Acid Derivatives - Interconversion and Organometallics: Crash Course Organic Chemistry #32

    We get it, learning so many different organic reactions is probably giving you a headache, but hopefully this episode can help! We’re getting even deeper into carboxylic acid derivatives, some of which are used in common headache relieving painkillers. In this episode of Crash Course Organic Chemistry, we’ll learn how to convert more reactive carboxylic acid derivatives into less reactive ones, turn carboxylic acids into acid chlorides, reduce carboxylic acid derivatives using metal hydrides, and more! Plus, we’ll get to add the first stage of synthesizing Penicillin V to our Mold Medicine Map! Episode Sources: https://www.worldofmolecules.com/drugs/tylenol.htm https://cen.acs.org/articles/92/i29/Does-Acetaminophen-Work-Researchers-Still.html https://pa01000125.schoolwires.net/cms/lib/PA01000125/Centricity/Domain/366/Chap14%20Ester%20Amide.pdf Gates, M., & Tschudi, G. (1956). The synthesis of morphine. Journal of the American Chemical Society, 78(7), 1380-1393. Seavill, P. W., & Wilden, J. D. (2020). The preparation and applications of amides using electrosynthesis. Green Chemistry. Introduction to Organic Chemistry, Brown & Poon, 5th edition. Series Penicillin References: Nicolaou, K. C., & Sorensen, E. J. (1996). Classics in total synthesis: targets, strategies, methods. John Wiley & Sons. Sheehan, J. C. (1982). The enchanted ring: the untold story of penicillin. Primary literature for Sheehan’s penicillin synthesis: Sheehan, J.C. & Izzo, P.T. J. Am. Chem. Soc. 1948, 70, 1985; Sheehan, J.C. & Izzo, P.T. J. Am. Chem. Soc. 1949, 71, 4059; Sheehan, J.C. & Bose A.K. J. Am. Chem. Soc. 1950, 72, 5158; Sheehan, J.C., Buhle, E.L, Corey E.J., Laubach, G.D. & Ryan J.J. J. Am. Chem. Soc. 1950, 72, 3828; Sheehan, J.C. & Laubach, G.D. J. Am. Chem. Soc. 1951, 73, 4376; Sheehan, J.C. & Hoff, D.R. J. Am. Chem. Soc. 1957, 79, 237; Sheehan, J.C. & Corey E.J. J. Am. Chem. Soc. 1951, 73, 4756 Series Sources: Brown, W. H., Iverson, B. L., Ansyln, E. V., Foote, C., Organic Chemistry; 8th ed.; Cengage Learning, Boston, 2018. Bruice, P. Y., Organic Chemistry, 7th ed.; Pearson Education, Inc., United States, 2014. Clayden, J., Greeves, N., Warren., S., Organic Chemistry, 2nd ed.; Oxford University Press, New York, 2012. Jones Jr., M.; Fleming, S. A., Organic Chemistry, 5th ed.; W. W. Norton & Company, New York, 2014. Klein., D., Organic Chemistry; 1st ed.; John Wiley & Sons, United States, 2012. Louden M., Organic Chemistry; 5th ed.; Roberts and Company Publishers, Colorado, 2009. McMurry, J., Organic Chemistry, 9th ed.; Cengage Learning, Boston, 2016. Smith, J. G., Organic chemistry; 6th ed.; McGraw-Hill Education, New York, 2020. Wade., L. G., Organic Chemistry; 8th ed.; Pearson Education, Inc., United States, 2013. *** Watch our videos and review your learning with the Crash Course App! Download here for Apple Devices: https://apple.co/3d4eyZo Download here for Android Devices: https://bit.ly/2SrDulJ Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse Thanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever: Michael M. Varughese, Ben Follows, Kyle & Katherine Callahan, Laurel A Stevens, Chris Routh, Evan Lawrence Henderson, Vincent, Emilee Murphy, Michael Wang, Jordan willis, Krystle Young, Michael Dowling, Alexis B, Rene Duedam, Burt Humburg, Aziz, Nick, DAVID MORTON HUDSON, Perry Joyce, Scott Harrison, Mark & Susan Billian, Junrong Eric Zhu, Alan Bridgeman, Rachel Creager, Jennifer Smith, Matt Curls, Tim Kwist, Jonathan Zbikowski, Jennifer Killen, Sarah & Nathan Catchings, Brandon Westmoreland, team dorsey, Trevin Beattie, Divonne Holmes à Court, Eric Koslow, Indika Siriwardena, Khaled El Shalakany, Jason Rostoker, Shawn Arnold, Siobhán, Ken Penttinen, Nathan Taylor, William McGraw, Andrei Krishkevich, ThatAmeric Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 19 · 13 min

    Federalism: Crash Course Government and Politics #4

    In which Craig Benzine teaches you about federalism, or the idea that in the United States, power is divided between the national government and the 50 state governments. Craig will teach you about how federalism has evolved over the history of the US, what powers are given to the federal government, and what stuff the states control on their own. And he punches an eagle, which may not surprise you at all. Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios Support is provided by Voqal: http://www.voqal.org Chapters: Introduction: Federalism 00:00 What is Federalism? 0:38 Dual Federalism 1:47 The Commerce Cause 3:34 Cooperative Federalism 4:18 Grants-in-aid 4:48 Regulated Federalism 6:04 New Federalism 7:00 Federalism Today 8:05 Credits 8:44 Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Instagram - https://www.instagram.com/thecrashcourse/ CC Kids: http://www.youtube.com/crashcoursekids Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 19 · 20 min

    The Rise of Conservatism: Crash Course US History #41

    In which John Green teaches you about the rise of the conservative movement in United States politics. So, the sixties are often remembered for the liberal changes that the decade brought to America, but lest you forget, Richard Nixon was elected to the presidency during the sixties. The conservative movement didn't start with Nixon though. Modern conservatism really entered mainstream consciousness during the 1964 presidential contest between the incumbent president and Kennedy torch-bearer Lyndon B Johnson, and Republican Senator Barry Goldwater. While Goldwater never had a shot in the election, he used the campaign to talk about all kinds of conservative ideas. At the same time, several varying groups, including libertarian conservatives and moral conservatives, began to work together. Goldwater's trailblazing and coalition-building would pay off in 1968 when Richard Nixon was elected to the White House, and politics changed forever when Nixon resigned over the Watergate scandal. You'll also learn about the ERA, EPA, OSHA, the NTSB, and several other acronyms and initialisms. Hey teachers and students - Check out CommonLit's free collection of reading passages and curriculum resources to learn more about the events of this episode. Richard Nixon ushered in an age of conservatism, first rising to the national stage with his Checkers speech: https://www.commonlit.org/texts/senator-nixon-s-checkers-speech Nixon’s presidency ended in near impeachment however over the corruption of the Watergate scandal: https://www.commonlit.org/texts/watergate-undoing-a-president Chapters: Introduction: The Rise of Conservativism 00:00 Anti "Big Government" Beliefs 1:32 The Election of 1964 2:45 Why the South Abandoned the Democratic Party 4:19 The Election of 1968 4:42 Nixon and the "Silent Majority" 5:31 Nixon's Domestic Agenda 6:36 Warren Burger 7:19 Roe vs. Wade 8:07 The Decline of Traditional Family Values 8:26 Opponents of the Equal Rights Amendment 9:10 Nixon and the Watergate Scandal 10:27 Mystery Document 12:09 Why Conservativism Gained Traction 13:04 Credits 14:09 Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Instagram - https://www.instagram.com/thecrashcourse/ CC Kids: http://www.youtube.com/crashcoursekids Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 19 · 18 min

    Biological Diversity, Butts, and the Tree of Life: Crash Course Biology #18

    Everywhere you look on Earth, you’ll find wonderful and diverse living things, from tiny tardigrades to soaring sequoias. And incredibly, everything alive today, and everything that’s ever lived, is related. In this episode of Crash Course Biology, we reveal how the evolutionary relationships between living things define their place on a single, great Tree of Life, and we learn what that tree can tell us about our own place among the planet’s biodiversity. Chapters: Ravens & Rhinos 00:00 The Tree of Life 1:08 Prokaryotes 3:48 Eukaryotes 4:57 Plants 6:39 Fungi 7:43 Animals 8:59 Review & Credits 11:47 This series was produced in collaboration with HHMI BioInteractive, committed to empowering educators and inspiring students with engaging, accessible, and quality classroom resources. Visit https://BioInteractive.org/CrashCourse for more information. Are you an educator looking for what NGSS Standards are covered in this episode? Check out our Educator Standards Database for Biology here: https://www.thecrashcourse.com/biologystandards Check out our Biology playlist here: https://www.youtube.com/playlist?list=PL8dPuuaLjXtPW_ofbxdHNciuLoTRLPMgB Watch this series in Spanish on our Crash Course en Español channel here: https://www.youtube.com/playlist?list=PLkcbA0DkuFjWQZzjwF6w_gUrE_5_d3vd3 Sources: https://docs.google.com/document/d/1GLDtAXE6ekg4Chk2qN3TYbNt0pJbyaHqTqRd6QY8pd4/edit?usp=sharing *** Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse Thanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever: David Fanska, Andrew Woods, Tawny Whaley, Sean Saunders, DL Singfield, Ken Davidian, Stephen Akuffo, Toni Miles, Steve Segreto, Kyle & Katherine Callahan, Laurel Stevens, Burt Humburg, Aziz Y, Perry Joyce, Scott Harrison, Mark & Susan Billian, Alan Bridgeman, Breanna Bosso, Matt Curls, Jennifer Killen, Starstuff42, Jon Allen, Sarah & Nathan Catchings, team dorsey, Bernardo Garza, Trevin Beattie, Eric Koslow, Indija-ka Siriwardena, Jason Rostoker, Siobhán, Ken Penttinen, Nathan Taylor, Les Aker, William McGraw, ClareG, Rizwan Kassim, Constance Urist, Alex Hackman, Pinapples of Solidarity, Katie Dean, Stephen McCandless, Wai Jack Sin, Ian Dundore, Caleb Weeks __ Want to find Crash Course elsewhere on the internet? Instagram - https://www.instagram.com/thecrashcourse/ Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse CC Kids: http://www.youtube.com/crashcoursekids Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 19 · 13 min

    Alkenes and Alkynes: Crash Course Chemistry #41

    Today Hank talks about the deliciousness of alkenes & alkynes, their structures, and how to remember which is which by simply knowing the alphabet. Also, he breaks down hydrogenation, halogenation, polymerization, and triglycerides all while helping us figure out the meaning of different names for fats. Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App! Download it here for Apple Devices: https://apple.co/3d4eyZo Download it here for Android Devices: https://bit.ly/2SrDulJ -- Table of Contents Alkenes & Alkynes 1:14 Naming Rules 1:39 Cis-Trans Isomerism 3:29 Hydrogenation, Halogenation, Polymerization, and Triglycerides 4:40 Meanings of Fat Names 5:50 -- Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Instagram - https://www.instagram.com/thecrashcourse/ CC Kids: http://www.youtube.com/crashcoursekids Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 19 · 18 min

    Human Evolution: We Didn't Evolve From Chimps: Crash Course Biology #19

    What’s a human? And how did we become humans, anyway? In this episode of Crash Course Biology, we’ll meet some of our closest relatives and trace how we evolved into the brainy, inventive, complex species we are today. Chapters: The First Humans 00:00 What is a Human? 1:18 Hominins 2:31 Dr. Xinzhi Wu 4:09 Hominin Interbreeding 5:32 How Humans Evolved 7:02 Review & Credits 11:44 This series was produced in collaboration with HHMI BioInteractive, committed to empowering educators and inspiring students with engaging, accessible, and quality classroom resources. Visit https://BioInteractive.org/CrashCourse for more information. Are you an educator looking for what NGSS Standards are covered in this episode? Check out our Educator Standards Database for Biology here: https://www.thecrashcourse.com/biologystandards Check out our Biology playlist here: https://www.youtube.com/playlist?list=PL8dPuuaLjXtPW_ofbxdHNciuLoTRLPMgB Watch this series in Spanish on our Crash Course en Español channel here: https://www.youtube.com/playlist?list=PLkcbA0DkuFjWQZzjwF6w_gUrE_5_d3vd3 Sources: https://docs.google.com/document/d/1GLDtAXE6ekg4Chk2qN3TYbNt0pJbyaHqTqRd6QY8pd4/edit?usp=sharing *** Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse Thanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever: Adriana Toyber, Leah H., David Fanska, Andrew Woods, Tawny Whaley, Sean Saunders, DL Singfield, Ken Davidian, Stephen Akuffo, Toni Miles, Steve Segreto, Kyle & Katherine Callahan, Laurel Stevens, Burt Humburg, Aziz Y, Perry Joyce, Scott Harrison, Mark & Susan Billian, Alan Bridgeman, Breanna Bosso, Matt Curls, Jennifer Killen, Starstuff42, Jon Allen, Sarah & Nathan Catchings, team dorsey, Bernardo Garza, Trevin Beattie, Eric Koslow, Indija-ka Siriwardena, Jason Rostoker, Siobhán, Ken Penttinen, Nathan Taylor, Barrett & Laura Nuzum, Les Aker, William McGraw, Vaso, ClareG, Rizwan Kassim, Constance Urist, Alex Hackman, Pineapples of Solidarity, Katie Dean, Stephen McCandless, Thomas Greinert, Wai Jack Sin, Ian Dundore, Caleb Weeks __ Want to find Crash Course elsewhere on the internet? Instagram - https://www.instagram.com/thecrashcourse/ Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse CC Kids: http://www.youtube.com/crashcoursekids Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 19 · 21 min

    The 1960s in America: Crash Course US History #40

    In which John Green teaches you about a time of relative tumult in the United States, the 1960s. America was changing rapidly in the 1960s, and rights movements were at the forefront of those changes. Civil Rights were dominant, but the 60s also saw growth in the Women's Movement, the LGBT Rights Movement, the Latino Rights Movement, and the American Indian Movement. Also, Americans began to pay a bit more attention to the environment. All this change happened against the backdrop of the Cold War and the Rise of Conservatism. It was just wild. John will teach you about sit-ins, Freedom Rides, The March on Washington, MLK, JFK, LBJ, and NOW. Man, that is a lot of initialisms. And one acronym. Hey teachers and students - Check out CommonLit's free collection of reading passages and curriculum resources to learn more about the events of this episode. Civil Rights stayed strong throughout the 1960s, beginning with the peaceful sit-in movement in 1960 in the South: https://www.commonlit.org/texts/the-sit-in-movement The Civil Rights Movement reached a high point when Martin Luther King Jr. delivered his 1963 “I Have a Dream” Speech at the March on Washington: https://www.commonlit.org/texts/i-have-a-dream After President Kennedy's assassination, President Johnson decided to promote Civil Rights as part of his Great Society program: https://www.commonlit.org/texts/lyndon-baines-johnson-and-the-great-society After Dr. Martin Luther King, Jr. was assassinated in 1968, the growing black power movement gained even more popularity: https://www.commonlit.org/texts/empowering-the-black-power-movement Learn more about the Civil Rights Movement in these episodes of Crash Course Black American History: The Montgomery Bus Boycott (35): https://youtu.be/ylOpide9dus Martin Luther King, Jr. (36): https://youtu.be/BmeUT7zH62E Student Civil Rights Activism (37): https://youtu.be/F624q1jBd0Y Malcolm X and the Rise of Black Power (38): https://youtu.be/8woU9Rq0cPI The Black Panther Party (39): https://youtu.be/ao0Jozn_7HM -- Chapters: Introduction: The 1960s 00:00 The Civil Rights Movement 0:44 Martin Luther King, Jr. 2:07 JFK and the Civil Rights Movement 3:17 LBJ, the Civil Rights Act, and the Great Society 4:05 Inequality in Urban America 6:26 Malcolm X, Black Power, and the Black Panther Party 7:13 Student Activism and Other Civil Rights Movements of the 1960s 8:05 Mystery Document 8:59 The Environmental Movement 9:48 The American Feminist Movement 10:03 The Supreme Court During the Warren Era 11:11 1968 was kind of a big year 12:28 Credits 14:26 -- Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Instagram - https://www.instagram.com/thecrashcourse/ CC Kids: http://www.youtube.com/crashcoursekids Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 19 · 9 min

    Types of Bureaucracies: Crash Course Government and Politics #16

    In which Craig Benzine breaks down the different types of bureaucracies. I mean sure, they’re all part of the executive branch, but some work more directly with the President than others. Some bureaucracies exist solely to independently regulate industry whereas others are expected to operate like corporations and make a profit. And on top of all that, some of these agencies have sub-agencies! It can all get pretty complicated, so we’ll try to discuss some of the most significant agencies out there and the ones you hear a lot about on the news. We’ll talk about how they seem to have steadily gained more and more power, and of course, we’ll talk about what all the agencies are for in the first place! Support is provided by Voqal: http://www.voqal.org Chapters: Introduction: Types of Bureaucracies 00:00 Executive Departments 0:41 Sub-agencies of Executive Departments 1:21 Independent Agencies 1:30 Independent Regulatory Commissions 1:45 Government Corporations 2:08 Functions of government bureaucracies 2:22 Where do bureaucracies get their power? 4:16 Credits 5:24 Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Instagram - https://www.instagram.com/thecrashcourse/ CC Kids: http://www.youtube.com/crashcoursekids Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 19 · 18 min

    Political Thought in the Harlem Renaissance: Crash Course Black American History #27

    When we think about the Harlem Renaissance, the arts come immediately to mind. But new political theories were also blossoming during this time. We've talked about Booker T. Washington and W.E.B. DuBois, but today we'll get into some other thinkers with different ideas about civil rights, fair labor practices, and Black nationalism. Clint's book, How the Word is Passed is available now! https://bookshop.org/a/3859/9780316492935 Sources Angela Davis, Blues Legacies and Black Feminism: Gertrude ‘Ma’ Rainey, Bessie Smith, and Billie Holiday (New York: Pantheon Books, 1998). Keisha N. Blain, Set the World on Fire: Black Nationalist Women and the Global Struggle for Freedom (University of Pennsylvania Press, 2018). Cheryl Wall, Women of the Harlem Renaissance (Bloomington: Indiana University Press, 1995). Adam Ewing, Age of Garvey: How a Jamaican Activist Created a Mass Movement and Changed Global Black Politics (New Jersey: Princeton University Press, 2014). Deborah Gray White; Mia Bay; Waldo E. Martin Jr, Freedom on My Mind: A history of African Americans, with Documents 3rd Edition (Macmillan, 2021). Watch our videos and review your learning with the Crash Course App! Download here for Apple Devices: https://apple.co/3d4eyZo Download here for Android Devices: https://bit.ly/2SrDulJ Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse Thanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever: Dave Freeman, Hasan Jamal, DL Singfield, Jeremy Mysliwiec, Shannon McCone, Amelia Ryczek, Ken Davidian, Stephen Akuffo, Toni Miles, Erin Switzer, Steve Segreto, Michael M. Varughese, Kyle & Katherine Callahan, Laurel A Stevens, Vincent, Michael Wang, Stacey Gillespie, Jaime Willis, Krystle Young, Michael Dowling, Alexis B, Burt Humburg, Aziz Y, DAVID MORTON HUDSON, Perry Joyce, Scott Harrison, Mark & Susan Billian, Junrong Eric Zhu, Alan Bridgeman, Rachel Creager, Jennifer Smith, Matt Curls, Tim Kwist, Jonathan Zbikowski, Jennifer Killen, Sarah & Nathan Catchings, Brandon Westmoreland, team dorsey, Trevin Beattie, Divonne Holmes à Court, Eric Koslow, Jennifer Dineen, Indika Siriwardena, Khaled El Shalakany, Jason Rostoker, Shawn Arnold, Siobhán, Ken Penttinen, Nathan Taylor, Les Aker, William McGraw, Andrei Krishkevich, ThatAmericanClare, Rizwan Kassim, Sam Ferguson, Alex Hackman, Jirat, Katie Dean, NileMatotle, Wai Jack Sin, Ian Dundore, Justin, Jessica Wode, Mark, Caleb Weeks __ Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support Crash Course on Patreon: http://patreon.com/crashcourse CC Kids: http://www.youtube.com/crashcoursekids #crashcourse #history #blackhistory Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 19 · 17 min

    Saturn: Crash Course Astronomy #18

    Saturn is the crown jewel of the solar system, beautiful and fascinating. It is a gas giant and has a broad set of rings made of ice particles. Moons create gaps in the rings via their gravity. Saturn has dozens of moons, including Titan, which is as big as Mercury and has a thick atmosphere and lakes of methane; and Enceladus which has an undersurface ocean and eruptions of water geysers. While we are still uncertain, it is entirely possible that either or both moons may support life. This episode was brought to you by Squarespace http://www.squarespace.com Check out the Crash Course Astronomy solar system poster here: http://store.dftba.com/products/crashcourse-astronomy-poster -- Chapters: Introduction: Saturn 00:00 Saturn's Atmosphere 1:23 Saturn's Hexagonal Storm 2:02 Saturn's Rings 2:49 Anomalies in Saturn's Rings 4:45 Titan: Saturn's Largest Moon 6:31 Enceladus’s Water Geysers 8:34 Saturn's Other Moons 9:51 Review 11:22 -- PBS Digital Studios: http://youtube.com/pbsdigitalstudios Follow Phil on Twitter: https://twitter.com/badastronomer Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Instagram - https://www.instagram.com/thecrashcourse/ CC Kids: http://www.youtube.com/crashcoursekids -- PHOTOS/VIDEOS Saturn http://saturn.jpl.nasa.gov/multimedia/images/saturn/images/IMG004899.jpg [credit: NASA/JPL-Caltech/Space Science Institute/G. Ugarkovic] Interiors http://solarsystem.nasa.gov/multimedia/gallery/gas_interiors.jpg [credit: Lunar and Planetary Institute] Saturn Ring Plane Crossing http://www.spacetelescope.org/static/archives/images/large/opo9616a.jpg [credit: Erich Karkoschka (University of Arizona Lunar & Planetary Lab) and NASA/ESA] Translucent Rings http://www.jpl.nasa.gov/spaceimages/details.php?id=PIA18295 [credit: NASA/JPL-Caltech/Space Science Institute] Catching its Tail http://www.ciclops.org/view_media/34501/Catching_Its_Tail?js=1 [credit: NASA/JPL-Caltech/Space Science Institute] Enter the Vortex http://www.ciclops.org/view_media/38030/Enter_the_Vortex_In_Psychedelic_Color [credit: NASA/JPL/Space Science Institute] The Rose http://www.nasa.gov/mission_pages/cassini/multimedia/pia14944.html#.VSwz-5TF_Z0 [credit: NASA/JPL/Space Science Institute] Ice http://www.nasa.gov/images/content/205796main_PIA10081-hires.jpg [credit: NASA/JPL/University of Colorado] Saturn’s rings to scale http://www.slate.com/blogs/bad_astronomy/2014/05/02/saturn_s_rings_to_scale_thinner_than_paper.html [credit: NASA/JPL/Space Science Institute] Saturn’s Ring Plane http://en.wikipedia.org/wiki/Rings_of_Saturn#/media/File:Saturn%27s_ring_plane.jpg [credit: NASA/JPL/Space Science Institute - Cassini-Huygens/NASA] Saturn http://saturn.jpl.nasa.gov/multimedia/images/saturn/images/IMG004899.jpg [credit: NASA/JPL-Caltech/Space Science Institute/G. Ugarkovic] Shaping the Drapes (video) http://ciclops.org/view.php?id=1361&js=1 [credit: NASA/JPL/Space Science Institute] Peaks http://en.wikipedia.org/wiki/Rings_of_Saturn#/media/File:PIA11668_B_ring_peaks_2x_crop.jpg [credit: NASA / Jet Propulsion Lab / Space Science Institute] Mimas Cassini http://en.wikipedia.org/wiki/Mimas_(moon)#/media/File:Mimas_Cassini.jpg [credit: NASA / JPL-Caltech / Space Science Institute] Cassini NAC RGB https://www.flickr.com/photos/ugordan/6896462870/sizes/o/in/photostream/ [credit: NASA/JPL-Caltech/Space Science Institute/G. Ugarkovic] Titan http://en.wikipedia.org/wiki/Titan_(moon)#/media/File:Titan2005.jpg [credit: NASA/JPL/Space Science Institute] Titan’s Nile River http://www.esa.int/spaceinimages/Images/2012/11/Titan_s_Nile_River [credit: NASA/JPL–Caltech/ASI] Lakes http://photojournal.jpl.nasa.gov/figures/PIA17655_fig1.jpg [credit: NASA/JPL- Learn more about your ad choices. Visit megaphone.fm/adchoices

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