I spent all summer building THIS! (relay computer)
17:35
Building a Relay-Powered Pi Machine
24:05
1958 FACOM 128B Japanese Relay Computer, still working!
30:13
How a 555 Works as a Timer.
17:35
I built every 555 circuit in the Forrest Mims Engineer's Mini Notebook - Part 1
23:25
I built a QR code with redstone to find out how it works
19:30
I built the C4 from Counter-Strike 2
15:09
Electromagnetic Aircraft Launcher
28:43