A Computer That Runs on Marbles
21:12
The Infinite Pattern That Never Repeats
19:22
Mechanical circuits: electronics without electricity
9:58
This Ancient Technology Makes Things Spin Really Fast!
22:27
The 10,000 Domino Computer
11:40
What It's Like to Drive on Other Planets
15:23
How to Make a White Hole and an Einstein–Rosen Bridge in Real Life
8:24
Making Non-Electric Circuits With Computer Logic
7:52