Electromagnetism

★★★ · Science! · Wilford B. Wolf · 2004-10-01

Early educational film covering Electromagnetism, circa late 1920s. This silent film, explains the principle of how an electromagnet works, using minimalist animation and a funky disembodied hand and a voltmeter. Then it goes on to talk about the different types of electromagnet used, especially in relation to electricity. The generator is briefly covered, and it shifts to how a transformer works, with some nice animated illustrations. The film finishes with the role transformers play in long-distance energy transmission from hydroelectric sources, with shots of period electricity production…

★★★ · About as Interesting as Physics Class · Christine Hennig · 2006-01-16

Silent 20s film in which basic principles of electromagnetism are taught through simple animated drawings and disembodied hands performing basic experiments. This is pretty dry, but it does have some interesting visual images to play around with. Ratings: Camp/Humor Value: *. Weirdness: **. Historical Interest: ****. Overall Rating: ***.