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.Links:Support us on Patreon!: http://patreon.com/crashcourseInstagram: https://www.instagram.com/crashcourseBluesky: https://bsky.app/profile/thecrashcourse.bsky.socialTikTok: https://www.tiktok.com/@crashcourseFacebook: http://www.facebook.com/YouTubeCrashCourse

  1. 30m ago

    Endocrine System, Part 1 - Glands and Hormones: Crash Course Anatomy and Physiology #23

    Hank begins teaching you about your endocrine system by explaining how it uses glands to produce hormones. These hormones are either amino-acid based and water soluble, or steroidal and lipid-soluble, and may target many types of cells or just turn on specific ones. He will also touch on hormone cascades, and how the HPA axis affects your stress response. Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App! Download it here for Apple Devices: https://apple.co/3d4eyZoDownload it here for Android Devices: https://bit.ly/2SrDulJChapters:Introduction: What are Hormones? 00:00Endocrine System 1:48Glands & Organs of the Endocrine System 2:42Hormones Trigger Reactions in Target Cells 3:33Water Soluble vs Lipid Soluble Hormones 4:16How the Pancreas Regulates Blood Sugar 5:09Hormone Cascades 6:05Hypothalamic-Pituitary-Adrenal (HPA) Axis 6:30Review 9:15Credits 9:48***Crash Course is now on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourseThanks to the following Patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:Mark Brouwer, Jan Schmid, Steve Marshall, Anna-Ester Volozh, Sandra Aft, Brad Wardell, Christian Ludvigsen, Robert Kunz, Jason, A Saslow, Jacob Ash, Jeffrey Thompson, Jessica Simmons, James Craver, Simun Niclasen, SR Foxley, Roger C. Rocha, Nevin, Spoljaric, Eric Knight, Elliot Beter, Jessica Wode***SUBBABLE MESSAGES***TO: Laura HewettFROM: Amy PaezGreetings from the other side of the world! DFTBA--TO: WesleyFROM: GDistance is created by the Desert Otherworld, therefore we shall not be destroyed.***SUPPORTER THANK YOU!***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:Mickey Maloney, Dan Smalley, Stephen DeCubellis, Vanessa Benavent, Andrew Galante, LankySam!, David Costello, Vanessa Benavent, Kenzo Yasuda, Tessa White--Want to find Crash Course elsewhere on the internet?Facebook - http://www.facebook.com/YouTubeCrashCourseTwitter - http://www.twitter.com/TheCrashCourseTumblr - http://thecrashcourse.tumblr.com Support Crash Course on Patreon: http://patreon.com/crashcourseCC Kids: http://www.youtube.com/crashcoursekids Learn more about your ad choices. Visit megaphone.fm/adchoices

    Endocrine System, Part 1 - Glands and Hormones: Crash Course Anatomy and Physiology #23

  2. 54m ago

    Life Begins: Crash Course Big History #4

    In which Hank and John Green teach you about life on Earth. They won't be giving advice on how life should be lived, because this is a history series. Instead, they'll teach you about the earliest forms of life on Earth, and some of the ways that they developed into the types of life we know, love, and sometimes don't love so much (I'm looking at you here, opossums). You'll learn about prokaryotes, eukaryotes, panspermia, reproduction, a little about DNA, and even a thing or two about trees. Maybe.Crash Course Biology DNA Structure and Replication Episode: https://www.youtube.com/watch?v=8kK2zwjRV0MDNA Transcription and Translation: https://www.youtube.com/watch?v=itsb2SqR-R0Learn more at http://www.bighistoryproject.comCrash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourseWant to find Crash Course elsewhere on the internet?Facebook - http://www.facebook.com/YouTubeCrashCourseTwitter - http://www.twitter.com/TheCrashCourseInstagram - https://www.instagram.com/thecrashcourse/CC Kids: http://www.youtube.com/crashcoursekids Learn more about your ad choices. Visit megaphone.fm/adchoices

    Life Begins: Crash Course Big History #4

  3. 1h ago

    Student Civil Rights Activism: Crash Course Black American History #37

    A wide range of Americans contributed to the Civil Rights Movement in the 1950s and 1960s. Students and young people were prominent groups of activists within the movement. Today, we'll learn about the Little Rock Nine, the Greensboro Four, the Student Nonviolent Coordinating Committee, and the Freedom Riders. These groups undertook protests and worked to integrate schools and public accommodations by riding segregated buses, demanding service at lunch counters, and even by simply attending school.Clint's book, How the Word is Passed is available now! https://bookshop.org/a/3859/9780316492935VIDEO SOURCESJon N. Hale, The Freedom Schools: Student Activists in the Mississippi Civil Rights Movement (New York: Columbia University Press, 2016).Clayborne Carson, In Struggle: SNCC and the Black Awakening of the 1960s (Cambridge: Harvard University Press, 1981).Howard Zinn, SNCC: The New Abolitionists (Cambridge: South End Press, 2002).Barbara Ransby, Ella Baker and the Black Freedom Movement: A Radical Democratic Vision (Chapel Hill: University of North Carolina Press, 2003).Karen Anderson, Little Rock: Race and Resistance at Central High School (New Jersey: Princeton University Press, 2013).https://www.history.com/news/freedom-riders-route-civil-rights-mapWatch our videos and review your learning with the Crash Course App! Download here for Apple Devices: https://apple.co/3d4eyZoDownload here for Android Devices: https://bit.ly/2SrDulJCrash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourseThanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:April Frazier, Dave Freeman, Hasan Jamal, DL Singfield, Lisa Owen, Jeremy Mysliwiec, Amelia Ryczek, Ken Davidian, Stephen Akuffo, Toni Miles, Steve Segreto, Michael M. Varughese, Kyle & Katherine Callahan, Laurel Stevens, Vincent, Michael Wang, Stacey Gillespie (Stacey J), Alexis B, Burt Humburg, Aziz Y, Shanta, DAVID MORTON HUDSON, Perry Joyce, Scott Harrison, Mark & Susan Billian, Junrong Eric Zhu, Rachel Creager, Breanna Bosso, Matt Curls, Tim Kwist, Jonathan Zbikowski, Jennifer Killen, Sarah & Nathan Catchings, 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, ClareG, Rizwan Kassim, Sam Ferguson, Alex Hackman, Jirat, Katie Dean, Avi Yashchin, NileMatotle, Wai Jack Sin, Ian Dundore, Justin, Mark, Caleb Weeks__Want to find Crash Course elsewhere on the internet?Facebook - http://www.facebook.com/YouTubeCrashCourseTwitter - http://www.twitter.com/TheCrashCourseInstagram - https://www.instagram.com/thecrashcourse/CC Kids: http://www.youtube.com/crashcoursekids Learn more about your ad choices. Visit megaphone.fm/adchoices

    Student Civil Rights Activism: Crash Course Black American History #37

  4. 3h ago

    Crash Course Office Hours: Geography

    Welcome to Crash Course Office Hours! Alizé Carrère and April Luginbuhl Mather answer your questions on human and physical geography, including how rocks form, how melting glaciers impact water resources, and what even is geography?Thank you to Flipgrid for sponsoring this series. Check them out here: https://info.flipgrid.com/00:00 Introduction01:48 What is geography?02:43 Place, space, and location 04:28 Site, situation and scale09:00 How do different types of rock form?11:35 Reducing the impacts of earthquakes and volcanoes13:37 How is a meander formed?16:34 Origin and formation of fjords18:52 How can mountain ecosystems be restore from the impact of development and tourism?22:14 Impact of melting Himalayan glaciers on water resources26:23 What is posthumanism?31:30 Who are significant geographers?34:05 Different types of boundaries37:36 What are the markers of development?40:26 What is in a geography course?45:30 Tips for studying geography48:35 Why do we personally find geography interesting?50:18 How to talk to students about the politics of maps52:29 Displacement of people due to war, natural disasters, and changing coastlines 55:18 How do metamorphic rocks form?56:15 Careers for people who study geography59:35 OutroCrash Course Study Skills: https://www.youtube.com/watch?v=IhuwS5ZLwKY&list=PL8dPuuaLjXtNcAJRf3bE1IJU6nMfHj86W***Watch our videos and review your learning with the Crash Course App! Download here for Apple Devices: https://apple.co/3d4eyZoDownload here for Android Devices: https://bit.ly/2SrDulJCrash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourseThanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:April Frazier, Dave Freeman, Hasan Jamal, DL Singfield, Lisa Owen, Jeremy Mysliwiec, Amelia Ryczek, Ken Davidian, Stephen Akuffo, Toni Miles, Steve Segreto, Michael M. Varughese, Kyle & Katherine Callahan, Laurel Stevens, Vincent, Michael Wang, Stacey Gillespie (Stacey J), Alexis B, Burt Humburg, Aziz Y, Shanta, DAVID MORTON HUDSON, Perry Joyce, Scott Harrison, Mark & Susan Billian, Junrong Eric Zhu, Rachel Creager, Breanna Bosso, Matt Curls, Tim Kwist, Jonathan Zbikowski, Jennifer Killen, Sarah & Nathan Catchings, 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, ClareG, Rizwan Kassim, Sam Ferguson, Alex Hackman, Jirat, Katie Dean, Avi Yashchin, NileMatotle, Wai Jack Sin, Ian Dundore, Justin, Mark, Caleb Weeks__Want to find Crash Course elsewhere on the internet?Facebook - http://www.facebook.com/YouTubeCrashCourseTwitter - http://www.twitter.com/TheCrashCourseInstagram - https://www.instagram.com/thecrashcourse/CC Kids: http://www.youtube.com/crashcoursekids Learn more about your ad choices. Visit megaphone.fm/adchoices

    Crash Course Office Hours: Geography

  5. 4h ago

    The End of Civilization (In the Bronze Age): Crash Course World History 211

    In which John Green teaches you about the Bronze Age civilization in what we today call the middle east, and how the vast, interconnected civilization that encompassed Egypt, The Levant, and Mesopotamia came to an end. What's that you say? There was no such civilization? Your word against ours. John will argue that through a complex network of trade and alliances, there was a loosely confederated and relatively continuous civilization in the region. Why it all fell apart was a mystery. Was it the invasion of the Sea People? An earthquake storm? Or just a general collapse, to which complex systems are prone? We'll look into a few of these possibilities. As usual with Crash Course, we may not come up with a definitive answer, but it sure is a lot of fun to think about.Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourseWant to find Crash Course elsewhere on the internet?Facebook - http://www.facebook.com/YouTubeCrashCourseTwitter - http://www.twitter.com/TheCrashCourseInstagram - https://www.instagram.com/thecrashcourse/CC Kids: http://www.youtube.com/crashcoursekids Learn more about your ad choices. Visit megaphone.fm/adchoices

    The End of Civilization (In the Bronze Age): Crash Course World History 211

  6. 6h ago

    Introduction to the Solar System: Crash Course Astronomy #9

    In today's Crash Course Astronomy, Phil takes a look at the explosive history of our cosmic backyard. We explore how we went from a giant ball of gas to the system of planets and other celestial objects we have today.This episode is sponsored by Squarespace: http://www.squarespace.com/crashcourseCheck out the Crash Course Astronomy solar system poster here: http://store.dftba.com/products/crashcourse-astronomy-poster--Chapters:Introduction 00:00Geocentrism vs Heliocentrism 0:51Makeup of the Solar System 2:38Is Pluto a Planet? 3:14Our Solar System 4:24How Our Solar System Formed 5:36Planet Formation Depends on Distance to Sun 7:14Review 8:57--PBS Digital Studios: http://youtube.com/pbsdigitalstudiosFollow Phil on Twitter: https://twitter.com/badastronomerCrash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourseWant to find Crash Course elsewhere on the internet?Facebook - http://www.facebook.com/YouTubeCrashCourseTwitter - http://www.twitter.com/TheCrashCourseInstagram - https://www.instagram.com/thecrashcourse/CC Kids: http://www.youtube.com/crashcoursekids--PHOTO/VIDEO CREDITSSun: http://www.nasa.gov/sites/default/files/706436main_20121114-304-193blend_m6-orig_full.jpg [credit: NASA/ESA]Jupiter: http://www.jpl.nasa.gov/images/hubble/20140515/jupiter20140515-full.jpg [credit: NASA/ESA]Geocentric celestial spheres; Peter Apian's Cosmographia (Antwerp, 1539): http://en.wikipedia.org/wiki/Celestial_spheres#mediaviewer/File:Ptolemaicsystem-small.pngGanymede: http://en.wikipedia.org/wiki/File:Noaa_ganymede.jpgMercury: http://messenger.jhuapl.edu/gallery/sciencePhotos/pics/CW0131775256F_web.png [credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington]Understanding Solar System Dynamics: Orbits and Kepler's Laws (2008): https://archive.org/details/OrbitsAndKeplersLawsMercury: http://apod.nasa.gov/apod/ap080116.htmlVenus: http://www.msss.com/all_projects/magellan.phpEarth: http://earthobservatory.nasa.gov/IOTD/view.php?id=36019Mars: http://nssdc.gsfc.nasa.gov/photo_gallery/photogallery-mars.htmlJupiter: http://www.nasa.gov/mission_pages/cassini/multimedia/pia04866.htmlSaturn: http://www.slate.com/content/dam/slate/blogs/bad_astronomy/2014/06/Ten%20Years%20at%20Saturn/cassini_ugarkovic_saturn.jpg.CROP.original-original.jpg [credit: Photo by NASA/JPL/Space Science Institute/Gordan Ugarkovic]Uranus: http://hubblesite.org/newscenter/archive/releases/1998/35/image/a/Neptune: http://www.slate.com/blogs/bad_astronomy/2014/05/15/neptune_voyager_images_updated_for_portrait_of_the_eighth_planet.htmlhttp://www.nasa.gov/sites/default/files/hs-2014-29-a-large_web.jpg [credit: JHUAPL/SwRI/Dan Durda]Bennu’s Journey: http://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=20220&button=recenthttp://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=11541Artist's impression of a protoplanetary disk: http://en.wikipedia.org/wiki/Protoplanetary_disk#mediaviewer/File:Artist%E2%80%99s_Impression_of_a_Baby_Star_Still_Surrounded_by_a_Protoplanetary_Disc.jpgRocky Ring of Debris Around Vega: http://www.nasa.gov/mission_pages/spitzer/multimedia/pia16610.html [image credit: NASA/JPL-Caltech]Proplyds in the Orion Nebula: http://www.esa.int/Our_Activities/Space_Science/Born_in_beauty_proplyds_in_the_Orion_Nebula Learn more about your ad choices. Visit megaphone.fm/adchoices

    Introduction to the Solar System: Crash Course Astronomy #9

  7. 6h ago

    The Stono Rebellion: Crash Course Black American History #6

    Enslaved people resisted their condition in a range of different ways. Oftentimes those ways were small and personal. There were also times when that resistance took on larger, more dramatic forms, like with slave uprisings and rebellions. Today, we'll learn about the Stono Rebellion, which was an uprising led by enslaved people in South Carolina in 1784. We'll also talk about ways that enslaved people resisted in general and methods like enforced illiteracy used by those who sought to keep people in bondage.Clint's book, How the Word is Passed is available now! https://bookshop.org/a/3859/9780316492935Sources and ReferencesIra Berlin, Many Thousands Gone: The First Two Centuries of Slavery in North America (Cambridge: The Belknap Press of Harvard University Press, 1998.Winthrop Jordan, White Over Black: American Attitudes Toward the Negro, 1550-1812 (Chapel Hill: University of North Carolina Press, 1968, reprinted in 2012)Peter Wood, Black Majority: Negroes in Colonial South Carolina from 1670 through the Stono Rebellion (New York: W.W. Norton & Company, 1974).Watch our videos and review your learning with the Crash Course App! Download here for Apple Devices: https://apple.co/3d4eyZoDownload here for Android Devices: https://bit.ly/2SrDulJCrash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourseThanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever: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, Shawn Arnold, Siobhán, Ken Penttinen, Nathan Taylor, William McGraw, Andrei Krishkevich, Sam Ferguson, Eric Prestemon, Jirat, TheDaemonCatJr, Wai Jack Sin, Ian Dundore, Jason A Saslow, Justin, Jessica Wode, Mark, Caleb WeeksSources and References-Ira Berlin, Many Thousands Gone: The First Two Centuries of Slavery in North America (Cambridge: The Belknap Press of Harvard University Press, 1998.-Winthrop Jordan, White Over Black: American Attitudes Toward the Negro, 1550-1812 (Chapel Hill: University of North Carolina Press, 1968, reprinted in 2012)-Peter Wood, Black Majority: Negroes in Colonial South Carolina from 1670 through the Stono Rebellion (New York: W.W. Norton & Company, 1974).__Want to find Crash Course elsewhere on the internet?Facebook - http://www.facebook.com/YouTubeCrashCourseTwitter - http://www.twitter.com/TheCrashCourseTumblr - http://thecrashcourse.tumblr.com Support Crash Course on Patreon: http://patreon.com/crashcourseCC Kids: http://www.youtube.com/crashcoursekids#crachcourse #history #rebellion Learn more about your ad choices. Visit megaphone.fm/adchoices

    The Stono Rebellion: Crash Course Black American History #6

  8. 7h ago

    Crash Course Office Hours: World History

    Welcome to Crash Course World History Office Hours! John Green and Cathy Keller answer your questions on the Russian Revolution, discuss the origin of nation states, and talk about the best way to approach studying history. Thank you to Flipgrid for sponsoring this series. Check them out here: https://info.flipgrid.com/00:00 Introduction06:02 Causes and effects of the Russian revolution15:55 Who was Genghis Khan and how was he able to get so much territory?20:56 How did the Cold War start?28:17 Kwame Nkrumah and Ghana in African decolonization and the Cold War31:03 The differences between the Aztecs, Incas, and Mayans36:09 Ataturk and the origin of nation-states41:05 What's the best way to look back on history?44:05 Tips for studying World History48:24 Why didn't the silk road stretch all the way across Europe?50:53 Favorite books on history56:16 OutroCrash Course Study Skills: https://www.youtube.com/watch?v=IhuwS5ZLwKY&list=PL8dPuuaLjXtNcAJRf3bE1IJU6nMfHj86W***Watch our videos and review your learning with the Crash Course App! Download here for Apple Devices: https://apple.co/3d4eyZoDownload here for Android Devices: https://bit.ly/2SrDulJCrash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourseThanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:April Frazier, Dave Freeman, Hasan Jamal, DL Singfield, Lisa Owen, Jeremy Mysliwiec, Amelia Ryczek, Ken Davidian, Stephen Akuffo, Toni Miles, Steve Segreto, Michael M. Varughese, Kyle & Katherine Callahan, Laurel Stevens, Vincent, Michael Wang, Stacey Gillespie (Stacey J), Alexis B, Burt Humburg, Aziz Y, Shanta, DAVID MORTON HUDSON, Perry Joyce, Scott Harrison, Mark & Susan Billian, Junrong Eric Zhu, Rachel Creager, Breanna Bosso, Matt Curls, Tim Kwist, Jonathan Zbikowski, Jennifer Killen, Sarah & Nathan Catchings, 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, ClareG, Rizwan Kassim, Sam Ferguson, Alex Hackman, Jirat, Katie Dean, Avi Yashchin, NileMatotle, Wai Jack Sin, Ian Dundore, Justin, Mark, Caleb Weeks__Want to find Crash Course elsewhere on the internet?Facebook - http://www.facebook.com/YouTubeCrashCourseTwitter - http://www.twitter.com/TheCrashCourseInstagram - https://www.instagram.com/thecrashcourse/CC Kids: http://www.youtube.com/crashcoursekids Learn more about your ad choices. Visit megaphone.fm/adchoices

    Crash Course Office Hours: World History
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About

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.Links:Support us on Patreon!: http://patreon.com/crashcourseInstagram: https://www.instagram.com/crashcourseBluesky: https://bsky.app/profile/thecrashcourse.bsky.socialTikTok: https://www.tiktok.com/@crashcourseFacebook: http://www.facebook.com/YouTubeCrashCourse

Information

  • Creator
    CrashCourse
  • Years Active
    2026
  • Episodes
    766
  • Rating
    Clean

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