Feynman on The Quantum Physics of Glass

TIMESTAMPS: 

00:00 — Every solid blocks light. Except the one in your window. 

03:12 — The classical argument: why solids SHOULD be opaque 

08:45 — "Maybe glass has tiny holes?" — wrong, and here's why 

12:20 — The myth that glass is a liquid (and why it won't die) 

15:30 — The quantum staircase: why electrons are picky eaters 

22:00 — Band gaps — the key that unlocks transparency 

28:15 — Why glass blocks UV but lets visible light through 

33:40 — Why metals are opaque and diamonds sparkle 

38:50 — Newton's impossible puzzle: how does the photon know? 

44:10 — Feynman's little arrows and the probability of reflection 

50:30 — Colored glass, impurities, and the art of selective absorption 

55:00 — Your window is editing reality — what else is?