16:28

Propeller Killer? High Efficiency Paddle Vs. Propeller

16:14

We built a JET powered surf board

31:13

I assembled a miniature working V8 engine and damn it's awesome. #stirlingkit

26:17

Battling 200 RC Airplanes With a Giant Flying Ceiling Fan

29:36

J'ai mis un MOTEUR DE BATEAU sur une planche à pagaie géante pour créer un esquif de pêche insensé

21:04

I Built a Go-Kart for Abandoned Railroads *Again*

14:32

Quadcopter Ground Effect Vehicle

24:52

Conley Factory Tour Model V8 Working 1/4 Scale Engine