Skip to content
Sign in
Artwork for CrashCourse
EducationScienceSociety & CultureDocumentary

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/crashcourse
Instagram: https://www.instagram.com/crashcourse
Bluesky: https://bsky.app/profile/thecrashcourse.bsky.social
TikTok: https://www.tiktok.com/@crashcourse
Facebook: http://www.facebook.com/YouTubeCrashCourse

Play
Open in
  • 867 episodes
  • daily
  • Avg 16 min
  • English

Episodes 867

NewestOldestLongest
All7Unplayed7In progress0Played0
Counted on this page — what you have heard stays on this device, so it is not something the list can be paged by.
  • October 15 · 15 min

    How do Outbreaks End? Vaccines and Recovery: Crash Course Outbreak Science #14

    Throughout this series, and in our real lives, we've seen the chaos and devastation that outbreaks can cause. But there's good news! Eventually, outbreaks come to an end. In this episode, we'll look at some of the important tools of outbreak response, particularly vaccines, and also discuss the important work that happens in the aftermath of an outbreak. This episode of Crash Course Outbreak Science was produced by Complexly in partnership with Operation Outbreak and the Sabeti Lab at the Broad Institute of MIT and Harvard—with generous support from the Gordon and Betty Moore Foundation. Episode Sources: https://www.cdc.gov/foodsafety/outbreaks/investigating-outbreaks/investigations/decision.html#:~:text=An%20outbreak%20is%20over%20when,the%20investigation%20continues%20or%20restarts. https://ourworldindata.org/hiv-aids https://vk.ovg.ox.ac.uk/vk/types-of-vaccine https://www.cdc.gov/sepsis/life-after-sepsis/index.html https://www.cdc.gov/sepsis/what-is-sepsis.html https://www.microbiologyresearch.org/content/journal/jmm/10.1099/jmm.0.039180-0?crawler=true https://link.springer.com/chapter/10.1007/978-3-030-15346-5_11 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5662448/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7166819/ https://www.who.int/news-room/facts-in-pictures/detail/immunization https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2776562) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5662448/ https://www.lung.org/lung-health-diseases/lung-disease-lookup/severe-acute-respiratory-syndrome-sars#:~:text=Impact%20of%20SARS%20Epidemic&text=A%20small%20percentage%20of%20patients,However%2C%20most%20patients%20fully%20recovered. *** 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 Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 15 · 14 min

    Why Does Jakarta Flood So Easily? Crash Course Geography #24

    Today we're going to talk about how and why floods happen both in spite of, and because of, us. Specifically, we'll take a closer look at the island of Java, and its largest city, Jakarta, and explain the factors that lead to serious flooding almost annually. We'll also show you how mangroves can help protect us from flooding, and how wetlands along floodplains act like the kidneys of the Earth filtering out impurities and pollutants. 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: Toni Miles, Oscar Pinto-Reyes, Erin Nicole, Steve Segreto, Michael M. Varughese, Kyle & Katherine Callahan, Laurel A Stevens, Evan Lawrence Henderson, Vincent, Michael Wang, Krystle Young, Michael Dowling, Alexis B, Rene Duedam, Burt Humburg, Aziz, DAVID MORTON HUDSON, Perry Joyce, Scott Harrison, Mark & Susan Billian, JJurong, 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, William McGraw, Andrei Krishkevich, ThatAmericanClare, Rizwan Kassim, Sam Ferguson, Alex Hackman, Eric Prestemon, Jirat, Katie Dean, TheDaemonCatJr, Wai Jack Sin, Ian Dundore, Matthew, 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 #Floods Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 15 · 13 min

    Moon Phases: Crash Course Astronomy #4

    In this episode of Crash Course Astronomy, Phil takes you through the cause and name of the Moon's phases. Check out the Crash Course Astronomy solar system poster here: http://store.dftba.com/products/crashcourse-astronomy-poster -- Chapters: Why does the Moon Have Phases? 00:00 New Moon 2:26 Waxing Crescent 4:17 First Quarter 4:35 Waxing Gibbous 5:15 Full Moon 5:32 Waning Gibbous, Third Quarter, and Waning Crescent 6:26 Earthshine 7:20 Review 8:58 -- 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 http://en.wikipedia.org/wiki/Moon#mediaviewer/File:FullMoon2010.jpg https://solarsystem.nasa.gov/multimedia/display.cfm?IM_ID=1879 http://svs.gsfc.nasa.gov/vis/a000000/a004200/a004236/frames/730x730_1x1_30p/moon.0505.jpg http://svs.gsfc.nasa.gov/vis/a000000/a004200/a004236/frames/730x730_1x1_30p/moon.0553.jpg http://svs.gsfc.nasa.gov/vis/a000000/a004200/a004236/frames/730x730_1x1_30p/moon.0634.jpg http://svs.gsfc.nasa.gov/vis/a000000/a004200/a004236/frames/730x730_1x1_30p/moon.0706.jpg http://svs.gsfc.nasa.gov/vis/a000000/a004200/a004236/frames/730x730_1x1_30p/moon.0809.jpg http://svs.gsfc.nasa.gov/vis/a000000/a004200/a004236/frames/730x730_1x1_30p/moon.0905.jpg http://svs.gsfc.nasa.gov/vis/a000000/a004200/a004236/frames/730x730_1x1_30p/moon.1011.jpg http://svs.gsfc.nasa.gov/vis/a000000/a004200/a004236/frames/730x730_1x1_30p/moon.1145.jpg http://en.wikipedia.org/wiki/Moon#mediaviewer/File:NASA-Apollo8-Dec24-Earthrise.jpg http://global.jaxa.jp/press/2008/04/img/20080411_kaguya_01l.jpg http://global.jaxa.jp/press/2008/04/20080411_kaguya_e.html http://www.esa.int/Our_Activities/Operations/First_view_of_Earth_as_Rosetta_approaches_home http://commons.wikimedia.org/wiki/File:Sachin_Nigam_-_starry_moon_%28by-sa%29.jpg https://www.flickr.com/photos/badastronomy/14397419837/ Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 8 · 11 min

    Unpacking masturbation: Sex Ed #14

    If almost everybody masturbates, why can’t we talk about it? In this myth-busting episode of Crash Course Sex Ed, we’ll uncover the history of how masturbation became taboo, the person who made sex toys better for everyone, and the ways masturbation can actually be good for you. Introduction: Masturbation Is Normal 00:00 Who Masturbates? 0:28 Gosnell Duncan & Sex Toys 1:22 Benefits of Masturbation 2:48 Masturbation Myths 4:37 Review & Credits 7:05 Sources: https://docs.google.com/document/d/1d7cG1ZMhBTROD2ZiMGiDwFwklPJAFgtip1RPkYVNvkg/edit?usp=sharing For more information on the topics in this episode, check out this resource from our partners at the Kinsey Institute (https://kinseyinstitute.org/): https://drive.google.com/drive/folders/1mSu0MerCwVUmNpya61JVIE4Wdsdkrgbk Read more about these topics here: Planned Parenthood - https://www.plannedparenthood.org/learn/sex-pleasure-and-sexual-dysfunction/masturbation *** Support us for $5/month on Patreon to keep Crash Course free for everyone forever! https://www.patreon.com/crashcourse Or support us directly: https://complexly.com/support Join our Crash Course email list to get the latest news and highlights: https://mailchi.mp/crashcourse/email Get our special Crash Course Educators newsletter: http://eepurl.com/iBgMhY Thanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever: Shruti S, Brandon Thomas, Emily Beazley, Forrest Langseth, oranjeez, Quinn Harden, Rie Ohta, Reed Spilmann, Elizabeth LaBelle, Jack Hart, Leah H., UwU, Barbara Pettersen, Kevin Knupp, Andrew Woods, David Fanska, Ken Davidian, Stephen Akuffo, Kyle & Katherine Callahan, Toni Miles, Steve Segreto, Samantha, Laurel Stevens, Kristina D Knight, Krystle Young, Alan Bridgeman, Scott Harrison, Perry Joyce, Sarah & Nathan Catchings, Duncan W Moore IV, Bernardo Garza, Breanna Bosso, team dorsey, Jennifer Killen, Matt Curls, Trevin Beattie, Eric Koslow, John Lee, Indija-ka Siriwardena, Jason Rostoker, Pietro Gagliardi, Alex Hackman, Ken Penttinen, Barrett Nuzum, ClareG, Nathan Taylor, Siobhán, Rizwan Kassim, Constance Urist, Les Aker, Triad Terrace, Stephen McCandless, Jason Buster, Thomas Greinert, Emily T, Katie Dean, Evol Hong, Tandy Ratliff, Joseph Ruf, 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 Bluesky - https://bsky.app/profile/thecrashcourse.bsky.social CC Kids: http://www.youtube.com/crashcoursekids Learn more about your ad choices. Visit megaphone.fm/adchoices

  • October 7 · 17 min

    Big Guns: The Muscular System - CrashCourse Biology #31

    Hank tells us the story of the complicated chemical dance that allows our skeletal muscles to contract and relax. Table of Contents 1) Cardiac, Smooth, & Skeletal Muscles 01:09 2) Muscle Anatomy 02:03 a) Muscle Fibers 03:07 b) Myofibrils 04:15:1 c) Sarcomeres 04:19:1 d) Myofilaments 04:37:2 3) Biolography 05:37:1 4) Sliding Filament Model 07:47 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

Showing 861–867 of 867 episodes