15:40

Aerospike Hybrid Rocket Engine (3D printed)

17:20

The Unknown Phase of Matter

22:45

ThermoJet Engine 3D Printed (PulseJet)

18:34

I 3D-Printed Luigi Mangione’s ‘Ghost Gun’ | Hacklab | WIRED

14:32

The Forgotten Nazi Cold Rocket Engine (3D Printed)