By Date
Chernobyl Disaster
0 comments
bolt action, functioning sniper rifle
0 comments
fire truck
0 comments
tiny laser
0 comments
Compact Burst Capacitor
0 comments
1 second timer bomb
0 comments
Human vs. Plutonium bomb
0 comments
shotgun
0 comments
a very simple NUET+DUET reactor
0 comments
Roman Candle
0 comments
Steam Jet Engine
1 comments