17:11

Building a HIGH POWER Rocket Plane (X-15)

14:50

DIY Super Speed Boat

9:20

Flettner Rotor Sail Cart // Homemade Science with Bruce Yeany

9:08

Flying Helicopter - Remote Controlled Lego - Making and Testing #lego #legotechnic #helicopter

4:23

Rotor Sail Explained

10:34

Rotorsail 2 0

21:32

Amazing Invention- This Drone Will Change Everything

5:52

Magnus effect vertical axis wind turbine, No blade, start quickly