I found a great clip from the 1950s (?) that discusses DC motors and generators:
http://www.youtube.com/watch?v=3X_kOb3jbZk
It's 1/2 hour long and worth every second! It's the real thing!
I love the way YouTube can make the past current again and how it prevents tons of great stuff from falling into obscurity.
MH:
Great video! I love those old style educational films. Reminds me of those films we watched in science class in the 60's. (Or health class) Those animated graphics were very advanced for that time. They work well and get the point across very simply. Ah for the old days.
Thanks for putting this up.
Bill
Thanks Bill. I watched most of it and I agree that the graphics are great. I get the feeling that the video covers design considerations and different ways of wiring DC motors and generators that have not been discussed on the EF threads. I found it quite fascinating. The same YouTuber has a 1945 clip that teaches basic electricity with great graphics were the electrons look like little spinning comets in orbit about the nuclei or they do a cartoon-style representation of electrons where they look like mini Casper the Ghosts. But what's really cool is the first minute shows you daily life in the home and the various electrical appliances being used in 1945.
What the heck: http://www.youtube.com/watch?v=D9IXS9J3duI (http://www.youtube.com/watch?v=D9IXS9J3duI)
MileHigh
I prefer this kind of motor. ;D
http://www.youtube.com/watch?v=-7fh2RP_uEs
Im sure most here would agree. ;)
Mags