Movies made sound with a light bulb: Sound-on-film
17:52
Exploring the World of E-Ink
18:31
The LED Traffic Light and the Danger of "But Sometimes!"
27:36
A record player that can play CDs: The Fisher DAC-145
21:39
Film: the reason some of the past was in HD
25:21
Old car headlights were all the same — which was a fairly bright idea
25:04
1931's Walt Disney Movie Projector - Restoration
21:48
Lessons from a Can Opener
50:09