video thumbnail 9:57
This demo tests your understanding of light | Barber pole, part 1

2023-09-01

[public] 236K views, 41.4K likes, dislikes audio only

channel thumb3Blue1Brown
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Shining polarized light into sugar water reveals diagonal stripes of color. Why?

Next video: /youtube/video/aXRTczANuIs

Steve Mould's video on the topic: /youtube/video/975r9a7FMqc

Help fund future projects: https://www.patreon.com/3blue1brown

An equally valuable form of support is to simply share the videos.

Thanks to Quinn Brodsky for setting up the demo and to the MIT Physics Instructional Resources Lab for their help and materials, especially Josh Wolfe and Caleb Bonyun.

Thanks to these viewers for their contributions to translations

German: Josh, jns-v

Hebrew: Omer Tuchfeld

Hungarian: MrExpert

Indonesian: akhyarr

Italian: Gabboronco

Korean: @tebaioioo, Juhyung

Persian: ah.202

Russian: fedor, ilevinson

Spanish: Marcelo Lynch

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These animations are largely made using a custom Python library, manim. See the FAQ comments here:

https://3b1b.co/faq#manim

https://github.com/3b1b/manim

https://github.com/ManimCommunity/manim/

All code for specific videos is visible here:

https://github.com/3b1b/videos/

The music is by Vincent Rubinetti.

https://www.vincentrubinetti.com

https://vincerubinetti.bandcamp.com/album/the-music-of-3blue1brown

https://open.spotify.com/album/1dVyjwS8FBqXhRunaG5W5u

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3blue1brown is a channel about animating math, in all senses of the word animate. If you're reading the bottom of a video description, I'm guessing you're more interested than the average viewer in lessons here. It would mean a lot to me if you chose to stay up to date on new ones, either by subscribing here on YouTube or otherwise following on whichever platform below you check most regularly.

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The origin of light, scattering, and polarization | Barber pole, part 2 163,591 views
/youtube/video/aXRTczANuIs
Steve Mould Steve's channel
/youtube/channel/UCEIwxahdLz7bap-VDs9h35A