Principles Of Electro-Magnetism, Parts 1 and 2 - (De Vry School Films - 1927)

A 1927 Silent film (by Carpenter-Goldman Laboratories; De Vry School) looks at the principles of electromagnetic force with diagrams and experiments. This is a pretty brutal movie to watch if you're not in the least bit interested in Electronics, magnetism, or science. It's pretty much a 30-minute science lesson, and the film assumes you know what they're talking about right off the bat. I did not, but hey, some nice animation though!