Bell Labs' Henry Feinberg Demonstrates Ways of Using Light to Transmit Sound Waves, 1978
29:09
AT&T Archives: Principles of the Optical Maser
20:23
Electromagnetic Waves - with Sir Lawrence Bragg
8:01
Sound transfer... BY LASER : DIY Experiments #3 LASER light music wireless
19:08
Bell Labs - The Company that Invented the Future
21:32
AT&T Archives: A Modern Aladdin's Lamp, about vacuum tubes,1940
28:03
AT&T Archives: Similiarities of Wave Behavior (Bonus Edition)
16:52
The Genesis of the Transistor, with Bonus Introduction - AT&T Archives
5:50