42:19

Building a Guided Rocket to Hit Mach 3

23:42

Waypoint Guidance with an Amateur Rocket

18:21

Building an R/C Caspian Sea Monster Ekranoplan

29:15

I 3D-Printed a Glock to See How Far Homemade Guns Have Come

26:17

Battling 200 RC Airplanes With a Giant Flying Ceiling Fan

27:10

Smallest 4K 120fps Camera Possible

23:56

Making A Complex Hollow Carbon Fibre Drone Fuselage

20:01

How I Built A Homemade Submarine, THAT WORKS!