35:19

Does light actually slow down in water?

25:39

I made a (useless) quantum computer at home

29:24

But why would light "slow down"? | Visualizing Feynman's lecture on the refractive index

27:40

The Hole In Relativity Einstein Didn’t Predict

19:00

What *is* the wavefunction?

27:15

The Most Misunderstood Concept in Physics

24:05

I never understood why light slows down in water … until now! (It doesn’t)

26:29

Watch electricity hit a fork in the road at half a billion frames per second