Why 4d geometry makes me sad
11:15
El problema más difícil en la prueba más difícil.
46:24
How are holograms possible? | Optics puzzles 5
40:06
Una historia de dos solucionadores de problemas (sombras de cubo promedio)
26:51
I cracked the divisibility code.
35:33
I Tried Making A Particle System
19:48
Why Are Cooling Towers Shaped Like That?
16:57
This Exotic Material Holds An Invisible Secret (Electret)
19:37