By Date
Plutonium reactor v2
U42 52 comments
Actual lightbulb
U42 20 comments
solar system v2
U42 23 comments
7 Seg decryptor
U42 36 comments
Thermal NAND gate
U42 10 comments
The Sun
U42 14 comments
improved fusion reactor
U42 44 comments
orion spaceship
U42 13 comments
Electronic Components
U42 11 comments
oxygen fusion reactor
U42 4 comments