But why would light "slow down"? | Visualizing Feynman's lecture on the refractive index
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Why it's on BrighterTube
Hand-picked by a BrighterTube curator · found via HackerTube (Karpathy's dataset of videos Hacker News recommends · 94% confidenceReplaces the common 'photons bounce around' misconception with the actual classical-electrodynamics mechanism, following Feynman's lecture treatment with original animation.
What you'll learn
Explains why light appears to slow down in glass and where the index of refraction comes from, building from driven oscillating charges.
Video by 3Blue1Brown, played through YouTube's embedded player.
Part of Optics puzzles, Physics, Переводы на русский язык
Go deeper
- The Feynman Lectures on Physics (boxed set)The Feynman Lectures on Physics, the classic set
- Surely You're Joking, Mr. Feynman!Feynman's memoir, a joy to read
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