I built your dumb electric weapon ideas
13:19
Our DIY Sub Explores A Flooded Hole To MAX DEPTH (PT3)
13:10
I Built a Transparent Boomerang (it's lethal)
12:03
Bee Gun, the gun that shoots bees
14:43
I built your dumb childhood inventions
16:02
Solving Desert Water Shortages Using 20,000 Volts
14:49
Stacking 5 Peltier Modules, and Reached -90℃
13:43
Everything you know about Lightning is wrong
11:35