Why No One Has Measured The Speed Of Light
33:37
Something Strange Happens When You Trust Quantum Mechanics
17:34
Entenda por que a gravidade NÃO é uma força
16:32
The Absurd Search For Dark Matter
17:30
This is why we can't have nice things
29:24
But why would light "slow down"? | Visualizing Feynman's lecture on the refractive index
16:29
Todas as barragens são temporárias
12:58
Why the US has birthright citizenship
9:26