Science Sunday!
I’m drawing pretty heavily on AT&T/Bell System stuff, but they do have some of the best science videos on YouTube. Not just about phone stuff, either.
For example, lasers.
From 1969, “Lasers Unlimited”. If you want to skip the introduction, fast forward to about 2:25.
Bonus video #1, since that one was short: a 1978 interview with Robert Wilson and Arno Penzias, right after their Nobel Prize was announced.
If you don’t know the story, Penzias and Wilson were Bell Labs employees working on microwave receivers, specifically ultra-sensitive and cryogenically cooled ones. Since they were trying to pick up really really weak signals (bounced off Echo balloons), they eliminated all the noise they could from their equipment. But there was still some noise that persisted and that they couldn’t find a source for. Finally, and with the help of some astronomers, they figured out that what they were hearing was the cosmic microwave background radiation, which is taken to be evidence in favor of the Big Bang theory. Penzias and Wilson won the Nobel Prize in Physics for this discovery. (It was shared with Pyotr Leonidovich Kapitsa, who was awarded the prize for unrelated work on low-temperature physics.)
I know it’s talking heads, but I think the Penzias and Wilson story is a great one. You go chasing faint radio signals, you come back with one of the keys to the universe. How cool is that?
(Apparently, their receiver was quite cool. Thank you, I’ll be here all week. Try the veal and remember to tip your waitress.)
Bonus video #2: This one is equally short, and silent: “A Computer Technique For the Production of Animated Movies”. This is how computer animation was done…in 1964.