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CrashCourse

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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  • 950 episodes
  • Avg 16 min
  • English
Counted on this page — what you have heard stays on this device, so it is not something the list can be paged by.
  • Tuesday · 7 min

    Crash Course US History Outtakes #5

    In which John Green mispronounces words, asks if jokes are appropriate, and struggles to use the teleprompter. 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

  • Tuesday · 12 min

    Gerrymandering: Crash Course Government and Politics #37

    Today Craig is going to talk about a topic that makes voters and politicians alike ANGRY! We're going to talk about Gerrymandering - that is the process in which voting districts are redrawn in a way to favor one party during elections. As you'll see, this is why election outcomes on Census years (which tend to be when districts are redrawn) are a really big deal. So we'll talk about how some of these cockamamie voting districts come to be and explain how Gerrymandering can affect the outcomes (and misrepresent voters) during elections. But even with all these rage-inducing and bizarre district maps, it's important to remember that it isn't ALL political scheming, but also a reflection of the tendency for Democrats to live in urban areas. Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios Support is provided by Voqal: http://www.voqal.org All attributed images are licensed under Creative Commons by Attribution 4.0 https://creativecommons.org/licenses/... Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashC... Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support 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

  • Tuesday · 17 min

    The Effects of Climate Change: Crash Course Biology #9

    Climate change shakes up all of Earth’s systems, including the living ones. In this episode of Crash Course Biology, we’ll see how climate change’s effects rattle the entire chain of life. Changes felt in one population ripple out to affect entire communities and ecosystems—whether they’re composed of pine trees, puffins, or people. Chapters: A Changing Climate 00:00 Ecosystem Effects 2:21 Ecosystem Responses 4:38 Increased Carbon Dioxide 7:04 Effects on Society 8:46 Review & Credits 10:53 Special thanks to Linus Obenhaus for additional video editing support on this episode! 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 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, Katie, Tori Thomas, 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, Rachel Creager, Breanna Bosso, Matt Curls, Jennifer Killen, Jon Allen, Sarah & Nathan Catchings, team dorsey, Trevin Beattie, Eric Koslow, Jennifer Dineen, Indija-ka Siriwardena, Jason Rostoker, 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

  • Tuesday · 17 min

    Telescopes: Crash Course Astronomy #6

    Today Phil explains how telescopes work and offers up some astronomical shopping advice. Check out the Crash Course Astronomy solar system poster here: http://store.dftba.com/products/crashcourse-astronomy-poster -- Chapters: Introduction 00:00 How do Telescopes Work? 0:47 Refraction 2:50 Magnification 3:48 Resolution 4:28 Reflectors 5:19 What Kind of Telescope Should You Buy? 6:19 Technology and the Light Spectrum 7:45 Review 11:14 -- Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse -- 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 http://en.wikipedia.org/wiki/Galileo_Galilei#mediaviewer/File:Justus_Sustermans_-_Portrait_of_Galileo_Galilei,_1636.jpg http://en.wikipedia.org/wiki/Human_eye#mediaviewer/File:Human_eye_with_blood_vessels.jpg http://en.wikipedia.org/wiki/Refracting_telescope#mediaviewer/File:Refractor_Cincinnati_observatory.jpg http://commons.wikimedia.org/wiki/File:Positive_lens_2.svg http://www.eso.org/public/images/yb_vlt_moon_cnn_cc/ http://en.wikipedia.org/wiki/Jupiter#mediaviewer/File:Jupiter_MAD.jpg http://en.wikipedia.org/wiki/Wide_Field_and_Planetary_Camera#mediaviewer/File:Hubble_Images_of_M100_Before_and_After_Mirror_Repair_-_GPN-2002-000064.jpg http://commons.wikimedia.org/wiki/File:Prime_focus_telescope.svg http://commons.wikimedia.org/wiki/File:Inspection_of_the_primary_mirror_of_the_Hubble_Space_Telescope8218871.jpg https://www.youtube.com/watch?v=ui6ernRFxOg#t=2m22s http://en.wikipedia.org/wiki/William_Herschel#mediaviewer/File:William_Herschel01.jpg http://commons.wikimedia.org/wiki/File:Grand_Canyon_National_Park,_23_Annual_Star_Party_2013_-_0082_-_Flickr_-_Grand_Canyon_NPS.jpg http://commons.wikimedia.org/wiki/File_talk:EM_spectrum.svg#mediaviewer/File:EM_spectrumrevised.png https://www.youtube.com/watch?v=RqX9vLj3_7w#t=4m52s http://pprc.qmul.ac.uk/~still/wordpress/?page_id=138 http://en.wikipedia.org/wiki/VERITAS#mediaviewer/File:MMT_FLWO_Amado_AZ_10359.jpg http://en.wikipedia.org/wiki/Astrophotography#mediaviewer/File:Henry_Drape_Orion_nebula_1880_inverted.jpg http://en.wikipedia.org/wiki/Astrophotography#mediaviewer/File:Orion-Nebula_A_A_Common.jpg http://en.wikipedia.org/wiki/File:PIA18593-Mars-CometSidingSpring-NEOWISE-20140728.jpg http://en.wikipedia.org/wiki/File:NASA-HS201427a-HubbleUltraDeepField2014-20140603.jpg http://upload.wikimedia.org/wikipedia/commons/2/2b/Jupiter_and_its_shrunken_Great_Red_Spot.jpg http://upload.wikimedia.org/wikipedia/commons/thumb/5/58/Chromatic_aberration_3.svg/2000px-Chromatic_aberration_3.svg.png http://upload.wikimedia.org/wikipedia/commons/5/56/The_Whirlpool_Galaxy_%28M51%29.jpg http://hubblesite.org/newscenter/archive/releases/2005/12/image/a/ Learn more about your ad choices. Visit megaphone.fm/adchoices

  • Tuesday · 19 min

    A Tour of the Cell: Crash Course Biology #23

    The cell is the basic unit of life, and our understanding of it has advanced as science, and the tools available to scientists, has advanced. In this episode of Crash Course Biology, we’ll take a look at the difference between prokaryotic and eukaryotic cells, take a guided tour of the eukaryotic cell, and learn why most cells are small. We’ll explore the eukaryotic cell’s surprising beginnings through an endosymbiosis that occurred about 1.5 billion years ago. Chapters: Introduction to the Cell 00:00 Classical Cell Theory 2:12 Parts of a Cell 5:37 Endosymbiosis 9:11 Modern Cell Theory 10:41 Review & Credits 12:23 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: 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

  • Tuesday · 19 min

    Community Ecology: Interspecies Interactions: Crash Course Biology #6

    Community ecology is the study of interactions between different species of living things, and lets ecologists examine the effects of predator-prey relationships, parasites, and mutually beneficial interactions. In this episode of Crash Course Biology, we’ll examine the myriad interspecies interactions with examples, see how keystone species impact their environment and explore how communities rebuild when they are disrupted, through the lens of the 1980 eruption of Mount St. Helens. Chapters: Community Ecology 0:00 Community Disturbances 2:29 Interspecies Interactions 3:55 Competition 7:35 Community Regulation 10:30 Review & Credits 13:06 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 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, Katie, Tori Thomas, 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, Rachel Creager, Breanna Bosso, Matt Curls, Jennifer Killen, Jon Allen, Sarah & Nathan Catchings, team dorsey, Trevin Beattie, Eric Koslow, Jennifer Dineen, Indija-ka Siriwardena, Jason Rostoker, 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? 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

  • Tuesday · 18 min

    How Does the Earth Create Different Landforms? Crash Course Geography #20

    Cliffs and canyons, beaches and dunes, floodplains and river valleys, plateaus and mountains — these are all products of a restless Earth. In today’s episode we’re going to take a closer look at how landforms greatly influence how people live and derive meaning and a sense of place. From the hills and ponds we see everyday to impressive landscapes like Uluru in Australia or the Kamchatka Peninsula in Russia they all have stories to tell. SOURCES Petersen, et al 2011. Fundamentals of Physical Geography. Cengage Christopherson, R.W. 2010: Elemental Geosystems. Prentice Hall Strahler, A. 2011. Introducing Physical Geography. 5th Edition.Wiley and Sons. Knox and Marston. 2016. Human Geography Place and Regions in a Global Context. 7th Edition. Pearson Huggett, R.J. 2007. Fundamentals of Geomorphology. 2nd Edition. Routledge Luhr, J.F. 2003. Earth. Dorling Kindersley. Zurick D and Karan P.P. 1999. Himalaya Life on the Edge of the World. John Hopkins Press. https://www.smithsonianmag.com/history/how-hannibal-crossed-the-alps-180963671/ https://assets.answersingenesis.org/doc/articles/pdf-versions/arj/v3/geomorphology-uluru.pdf https://pubs.usgs.gov/gip/dynamic/himalaya.html https://www.nps.gov/grca/learn/education/upload/geoarticle-2.pdf 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 #Geography #Landforms Learn more about your ad choices. Visit megaphone.fm/adchoices

  • Tuesday · 14 min

    The Chemical Mind: Crash Course Psychology #3

    BAHHHHHH! Did I scare you? What exactly happens when we get scared? How does our brain make our body react? Just what are Neurotransmitters? In this episode of Crash Course Psychology, Hank takes us to the simplest part of the complex system of our brains and nervous systems: the neuron. -- Want more videos about psychology? Check out our sister channel SciShow Psych at https://www.youtube.com/scishowpsych! -- Chapters: Introduction: Brain Chemicals 00:00 Neurons 1:31 Parts of a Neuron 2:07 Synapses 3:08 Neurotransmitters 3:58 Excitatory Neurotransmitters 4:48 Inhibitory Neurotransmitters 5:10 More Neurotransmitters 5:30 Hormones 6:08 Nervous vs. Endocrine Systems 6:44 Endocrine System Glands 7:19 The Pituitary Gland 7:58 How the Nervous & Endocrine Systems Work Together 8:33 Credits 9:33 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

  • Tuesday · 16 min

    Nuclear Chemistry Part 2 - Fusion and Fission: Crash Course Chemistry #39

    Continuing our look at Nuclear Chemistry, Hank takes this episode to talk about Fusion and Fission. What they mean, how they work, their positives, negatives, and dangers. Plus, E=mc2, Mass Defect, and Applications of Fission and Fusion in the real world! 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 E=mc2 Mass Defect Fission vs. Fusion Applications in the Real World -- 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

  • Tuesday · 16 min

    What is Linguistics?: Crash Course Linguistics #1

    Language is everywhere. Linguistics is the study of language, but what does that even mean? In this episode of Crash Course Linguistics, we'll begin talking about some of the features and levels of structure of language, and introduce some of the other topics we'll be covering throughout this series. Want even more linguistics? Check out the Lingthusiasm podcast, hosted by the writers of Crash Course Linguistics: https://lingthusiasm.com/ *** Watch our videos and review your learning with the Crash Course App! Download here for Apple Devices: https://apple.co/3d4eyZo 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: Catherine Conroy, Patty Laqua, Leonora Rossé Muñoz, Stephen Saar, John Lee, Phil Simmons, Alexander Thomson, Mark & Susan Billian, Junrong Eric Zhu, Alan Bridgeman, Jennifer Smith, Matt Curls, Tim Kwist, Ron Lin, Jonathan Zbikowski. Jennifer Killen, Sarah & Nathan Catchings, Brandon Westmoreland, team dorsey, Trevin Beattie, Eric Prestemon, Sam Ferguson, Yasenia Cruz, Eric Koslow, Indika Siriwardena, Khaled El Shalakany, Shawn Arnold, Tom Trval, Siobhán, Ken Penttinen, Nathan Taylor, William McGraw, Justin Zingsheim, Andrei Krishkevich, Jirat, Brian Thomas Gossett, SR Foxley, Ian Dundore, Jason A Saslow, Jessica Wode, Mark, Caleb Weeks, Sam Buck -- 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

  • Tuesday · 21 min

    The Clinton Years, or the 1990s: Crash Course US History #45

    In which John Green teaches you about the United States as it was in the 1990s. You'll remember from last week that the old-school Republican George H.W. Bush had lost the 1992 presidential election to a young upstart Democrat from Arkansas named Bill Clinton. Clinton was a bit of a dark horse candidate, having survived a sex scandal during the election, but a third-party run by Ross Perot split the vote, and Clinton was inaugurated in 1993. John will teach you about Clinton's foreign policy agenda, which included NATO action in the Balkans and the Oslo Accords between Israel and the PLO. He'll also cover some of the domestic successes and failures of the Clinton years, including the failed attempt at healthcare reform, the pretty terrible record on GLBTQ issues, Welfare reform, which got mixed reviews, and the happier issues like the huge improvements in the economy. Also computers. Cheap, effective, readily available computers came along in the 1990s, and they kind of changed the world, culminating in this video, which is the end of the internet. Until next week. 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. One of the largest criticisms against President Clinton's presidency was his inaction during the genocide in Rwanda which he comments on in his Remarks on the Rwandan Genocide: https://www.commonlit.org/texts/president-clinton-s-remarks-in-kigali-on-the-rwandan-genocide First Lady Hillary Clinton had some foreign affairs success of her own when she delivered her 1995 speech to the United Nations Fourth World Conference on Women stating that women's rights are human rights: https://www.commonlit.org/texts/first-lady-hillary-clinton-s-address-to-the-united-nations-fourth-world-conference-on-women Chapters: Introduction: The Clinton Years 00:00 Clinton's Foreign Policy 0:40 Terrorism During the Clinton Era 1:51 Clinton's Domestic Policy 2:12 Clinton's Triangulation Strategy 3:20 Clinton's Welfare Reforms 4:42 Economics During the Clinton Era 5:14 The E-Commerce Boom 6:27 Mystery Document 6:42 Globalization of Manufacturing, Technology, and Commerce 8:06 The Crash of 2000 8:58 Increasing Wealth Inequality 9:37 The Culture Wars 10:13 An Influx of Immigration 10:22 Diverse Family Structures 11:25 The AIDS Epidemic & LGBT Rights Movement 11:50 Imprisonment & the "War on Drugs" 12:08 Multiculturalism & Political Tensions 12:34 Clinton's Infidelity & Impeachment 13:09 Clinton's Legacy 14:19 Credits 15:00 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

  • Tuesday · 19 min

    What Do Pea Plants Have To Do With Your Eye Color? (Mendelian Genetics): Crash Course Botany #10

    All of the different plants on Earth have come about thanks to the simple rules of genetic inheritance, which determine how traits are passed on from one generation to the next. In this episode of Crash Course Botany, we’ll explore the remarkable story of Gregor Mendel, a botanist and mathematician who laid the groundwork for modern genetics with little more than some peas and a paintbrush. Chapters: Peas & a Paintbrush 00:00 Gregor Mendel 1:05 Mendel's Experiments 2:57 Phenotype & Genotype 4:40 Mendel's Principles of Inheritance 5:38 Effects of Mendel's Research 9:14 Review & Credits 12:14 Check out PBS Food here: https://www.youtube.com/@PBSFood 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: 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

  • Tuesday · 18 min

    Cell Membranes: How Does Stuff Get Into Your Cells?: Crash Course Biology #24

    The cell membrane is a protein-studded phospholipid bilayer that not only protects our cells, but also regulates what goes in and out. In this episode of Crash Course Biology, we’ll look at the structure of the bilayer, learn about its discovery, and explore the many ways substances can be transported into and out of cells. Chapters: Introduction to the Cell Membrane 00:00 Membrane Structure 2:10 Membrane Proteins 4:53 Membrane Transport 7:07 Review & Credits 11:54 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: 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 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

  • Tuesday · 16 min

    Trademarks and Avoiding Consumer Confusion: Crash Course Intellectual Property #5

    In which Stan Muller teaches you about our third branch of Intellectual Property, trademarks. A lot of people confuse trademark and copyright. Trademarks apply to things like company and product names and logos, packaging designs, and commercial designs. Basically, copyright protects ideas, but trademarks protect the things that help consumers tell companies apart. This ensures that consumers know the source of the goods they're buying. Without trademarks, it would be really difficult to buy the same product twice, and very easy for unscrupulous companies to pass off fakes and knock-offs of the products you want. I'm telling you, you like trademarks. Thank you so much to all of our awesome supporters for their contributions to help make Crash Course possible and freely available for everyone forever: Pablo Soares, Brad Mohr, Stephen DeCubellis, Ian Gallagher, Vanessa Benavent, Lázaro Clapp, James Hood, Damian Shaw, James, H.G. Redekop, Carl Ayres ***** 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

  • Tuesday · 15 min

    Psychological Research: Crash Course Psychology #2

    So how do we apply the scientific method to psychological research? Lots of ways, but today Hank talks about case studies, naturalistic observation, surveys and interviews, and experimentation. Also, he covers different kinds of bias in experimentation and how research practices help us avoid them. Want more videos about psychology? Check out our sister channel SciShow Psych at https://www.youtube.com/scishowpsych! -- Chapters: Introduction: Intuition & Hindsight Bias 00:00 The Scientific Method 2:05 Case Studies 3:05 Naturalistic Observation 3:48 Surveys and Interviews 4:15 Drawing Conclusions 5:26 Experimentation 6:35 Experiment Time! 7:48 Review 9:54 -- 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

  • Tuesday · 18 min

    The Cold War in Asia: Crash Course US History #38

    In which John Green teaches you about the Cold War as it unfolded in Asia. As John pointed out last week, the Cold War was occasionally hot, and a lot of that heat was generated in Asia. This is starting to sound weird with the hot/cold thing, so let's just say that the United States' struggle against communist expansion escalated to a full-blown, boots-on-the-ground war in Korea and Vietnam. In both of these cases, the United States sent soldiers to intervene in civil wars that it looked like communists might win. That's a bit of a simplification, but John will explain it all to you. 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. While The Vietnam War was happening very far away from home, it had a major impact on American soldiers and civilians: https://www.commonlit.org/texts/introduction-to-the-vietnam-war Americans with televisions had the war broadcasted right into their living rooms, leading to an immense Vietnam War resistance effort: https://www.commonlit.org/texts/resistance-to-the-vietnam-war Want to learn more about the Cold War? Check out these other videos from Crash Course: USA vs USSR Fight! The Cold War: Crash Course World History #39: https://www.youtube.com/watch?v=y9HjvHZfCUI The Cold War: Crash Course US History #37: https://www.youtube.com/watch?v=9C72ISMF_D0 George HW Bush and the End of the Cold War: Crash Course US History #44: https://www.youtube.com/watch?v=L-K19rVDxoM The Cold War and Consumerism: Crash Course Computer Science #24: https://www.youtube.com/watch?v=m8i38Yq1wX4 Post-War Rebuilding and the Cold War: Crash Course European History #41: https://www.youtube.com/watch?v=-rkIqtV07HE Chapters: Introduction: The Cold War in Asia 00:00 The Korean War 0:28 Eisenhower's Election 3:05 Cost of the Korean War 3:20 Mystery Document 4:18 Ho Chi Minh 5:19 American Involvement in Vietnam 5:55 The Gulf of Tonkin Incident 7:02 Operation Rolling Thunder 8:13 Fighting in Vietnam 8:41 Public Opinion and the Vietnam War 9:38 Nixon's Plan to Leave Vietnam 10:34 Anti-War Sentiments 11:19 The End of the Vietnam War 11:52 Credits 13:09 -- 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

  • Tuesday · 18 min

    How We ALL Get Our Energy (Plants and Ecosystems): Crash Course Botany #13

    From the driest deserts to the lushest forests, ecosystems are networks of life where organisms and the environment interact. In this episode of Crash Course Botany, we’ll explore how plants function as the foundations of these systems, without which no other life on Earth would be possible. Chapters: The Foundations of Ecosystems 00:00 Autotrophs 1:43 Heterotrophs 3:15 Food Webs 4:56 Protecting Wild Tomatoes 8:08 Keystone Species 10:01 Review & Credits 11:55 Sources: https://docs.google.com/document/d/1PB6WdUJcABAccO-U-t6ic7WbfP2z0Pr5P9a8HMr6zh4/edit?usp=sharing Check out PBS Terra's Untold Earth here: https://www.youtube.com/watch?v=VVeBSKK88Ig& *** 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

  • Tuesday · 18 min

    Population Ecology: How We Saved the Bald Eagle: Crash Course Biology #7

    When the Bald Eagle population started to decline in the mid-20th century, scientists began to ask why. Population ecology, the study of organisms of the same species, played a big role in answering that question. In this episode of Crash Course Biology, we’ll take a look at the methods population ecologists use to study a population and the types of data they collect. We’ll also find out how scientists helped bring the Bald Eagle back from the brink. Chapters: Introduction to Population Ecology 00:00 Density 2:51 Dispersion 6:02 Demographics 7:13 Population Growth 8:22 Review & Credits 11:26 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 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, Katie, Tori Thomas, 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, Rachel Creager, Breanna Bosso, Matt Curls, Jennifer Killen, Jon Allen, Sarah & Nathan Catchings, team dorsey, Trevin Beattie, Eric Koslow, Jennifer Dineen, Indija-ka Siriwardena, Jason Rostoker, 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? 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

  • Tuesday · 14 min

    Recession, Hyperinflation, and Stagflation: Crash Course Economics #13

    If you're ever put in charge of a national economy, there are a few things you should try to avoid. Before you laugh, just remember, you COULD be in charge of an economy someday. Someone has to do it, and anyway, if it could happen to Alan Greenspan, it could happen to you, too. The first thing you're going to want to avoid is hyperinflation. Don't print too much money, okay? Actually, it's a little more complicated than that. Jacob and Adriene will explain. You're also going to want to stay away from recessions, and especially depressions. In the world as it exists today, continued growth is the only path to viability. While some argue for sustainability or even controlled recession, you're not going to keep a job as head of central bank thinking like that in this day and age. Also, avoid stagflation, which is a stagnant, no-growth economy combined with inflation. It's just the worst. Don't do it. All this and more on this week's Crash Course Economics. 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: Fatima Iqbal, Penelope Flagg, Eugenia Karlson, Alex S, Jirat, Tim Curwick, Christy Huddleston, Eric Kitchen, Moritz Schmidt, Today I Found Out, Avi Yashchin, Chris Peters, Eric Knight, Jacob Ash, Simun Niclasen, Jan Schmid, Elliot Beter, Sandra Aft, SR Foxley, Ian Dundore, Daniel Baulig, Jason A Saslow, Robert Kunz, Jessica Wode, Steve Marshall, Anna-Ester Volozh, Christian, Caleb Weeks, Jeffrey Thompson, James Craver, and Markus Persson -- 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

  • Tuesday · 16 min

    The Fugitive Slave Act of 1793: Crash Course Black American History #10

    One of the ways that the US Constitution baked the institution of slavery into the very core of the new United States was through the fugitive slave clause. The clause required that people who escaped slavery be returned to their enslavers. In parts of the US that didn't want slavery, the clause sometimes went unenforced. Today we'll learn about how Congress passed the Fugitive Slave Law of 1793 to enforce that clause, how enslavers throughout the country used that rule, and the long-term effects of this law. SOURCES: Somerset v. Stewart, 98 E.R. 499 (K.B. 1772) Karen Arnold-Burger, Fugitive Justice: Slavery and the Law in Pre-Civil War America, 46 Ct. Rev. 116 (2009). Louise Weinberg, Methodological Interventions and the Slavery Cases; or, Night-Thoughts of a Legal Realist Symposium: The Silver Anniversary of the Second Conflicts Restatement, 56 Md. L. Rev. 1316–1370 (1997). H. Robert Baker, The Fugitive Slave Clause and the Antebellum Constitution, 30 Law & Hist. Rev. 1133–1174 (2012). Allen Johnson, Constitutionality of the Fugitive Slave Acts, 31 Yale L.J. 161 (1921). John Hope Franklin, From Slavery to Freedom: A History of Negro Americans (New York: Knopf, 1967). Erica Armstrong Dunbar, Never Caught: The Washingtons’ Relentless Pursuit of Their Runaway Slave, Ona Judge (New York: Atria Books, 2017) https://www.law.cornell.edu/wex/habeas_corpus Clint's book, How the Word is Passed is available now! https://bookshop.org/a/3859/9780316492935 Watch our videos and review your learning with the Crash Course App! Download here for Apple Devices: https://apple.co/3d4eyZo Download here 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 SOURCES -Somerset v. Stewart, 98 E.R. 499 (K.B. 1772) -Karen Arnold-Burger, Fugitive Justice: Slavery and the Law in Pre-Civil War America, 46 Ct. Rev. 116 (2009). -Louise Weinberg, Methodological Interventions and the Slavery Cases; or, Night-Thoughts of a Legal Realist Symposium: The Silver Anniversary of the Second Conflicts Restatement, 56 Md. L. Rev. 1316–1370 (1997). -H. Robert Baker, The Fugitive Slave Clause and the Antebellum Constitution, 30 Law & Hist. Rev. 1133–1174 (2012). -Allen Johnson, Constitutionality of the Fugitive Slave Acts, 31 Yale L.J. 161 (1921). -John Hope Franklin, From Slavery to Freedom: A History of Negro Americans (New York: Knopf, 1967). -Erica Armstrong Dunbar, Never Caught: The Washingtons’ Relentless Pursuit of Their Runaway Learn more about your ad choices. Visit megaphone.fm/adchoices

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