What They (Probably) Don't Teach You About Rainbows At School

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You probably don’t understand how a rainbow really works. Get a little smarter every day with Brilliant. Visit https://brilliant.org/veritasium to get 20% off your annual premium subscription. Special thanks to Mats Vermeeren. 00:00 Most people don't understand rainbows 01:08 Light refraction explained 08:20 How does a rainbow form? 13:10 Circular rainbows 15:14 Why are rainbows curved? 17:30 Why can’t you see a rainbow with sunglasses? 18:43 Why is it brighter underneath a rainbow? 20:44 Different types of rainbow 23:46 Invention of the cloud chamber ▀▀▀ Join us on Patreon for early access videos, bonus content, and to support Veritasium! https://ve42.co/PatreonDE Patrons: Adam Foreman, Albert Wenger, Alexander Tamas, Anton Ragin, Balkrishna Heroor, Bertrand Serlet, Bill Linder, Blake Byers, Bruce, Dave Kircher, David Johnston, Evgeny Skvortsov, Farbod Mansorian, Garrett Mueller, Gnare, Greg Scopel, I. H., John H. Austin, Jr., Juan Benet, KeyWestr, Kirill Shore, Kyi, Lee Redden, Marinus Kuivenhoven, Matthias Wrobel, Meekay, Michael Krugman, Orlando Bassotto, Paul Peijzel, Richard Sundvall, Sam Lutfi, Spilmann Reed, TTST, Tj Steyn, Ubiquity Ventures, gpoly, john kiehl, meg noah, wolfee If you’re looking for a molecular modeling kit, try Snatoms, a kit I invented where the atoms snap together magnetically - https://ve42.co/SnatomsV CORRECTION: We mistakenly used picture of the portrait artist Henry Tanworth Wells at 23:54. It should be a picture of CTR Wilson. Sorry! Thanks, @manicpixiedreambuoy, for pointing it out. CORRECTION: The animation at 18:06 shows only the parallel polarization being transmitted, when in reality both parallel and perpendicular polarization light gets transmitted. Perpendicularly polarized light doesn't exhibit a Brester's angle so there's always both reflection and transmission when going from a high index of refraction material to a low index of refraction material. ▀▀▀ References: https://ve42.co/RefsRainbows ▀▀▀ Directed by Pablo Rovetto and Derek Muller Written by Pablo Rovetto and Derek Muller Edited by Nick Lear and Trenton Animated by Mike Radjabov, Ivy Tello, David Szakaly, Emma Wright and Fabio Albertelli Filmed by Derek Muller Additional research by Gabe Strong and Geeta Thakur Produced by Pablo Rovetto, Derek Muller, Emily Zhang, Rob Beasley Spence and Tori Brittain Thumbnail contributions by Jakub Misiek, Ren Hurley and Peter Sheppard Additional video/photos supplied by Getty Images, Storyblocks Music from Epidemic Sound