Why does light bend when it enters glass?
10:24
Why does light slow down in water?
33:37
Something Strange Happens When You Trust Quantum Mechanics
10:55
How can a photon have momentum?
23:07
Pourquoi la vitesse de la lumière est si lente ?
27:11
Why no two people see the same rainbow
9:50
Is gravity a force?
29:24
But why would light "slow down"? | Visualizing Feynman's lecture on the refractive index
2:00:00