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Curated by: 3Blue1Brown (247 videos)
A link to the full video is at the bottom of the screen. Or, for reference: https://youtu.be/KTzGBJPuJwM That video unpacks the mechanism behind how light slows down in passing through a medium, and why the slow-down rate would depend on color. Editing from long-form to short by Dawid Kołodziej