Making pop rocks from scratch (is complicated)
58:01
Making an atomic trampoline
22:23
The Most Important Material Ever Made
35:28
Making chocolate from scratch to feed an addiction
16:31
I 3D Printed a $1,175 Chair
52:57
Turning styrofoam into cinnamon candy
16:57
This Exotic Material Holds An Invisible Secret (Electret)
28:32
Six questionably legal pencil sharpeners
1:15:14