Electromagnetism (silent, 1920s)

“Electromagnetism” is a silent educational film from the late 1920s that explains the basic principles of electromagnetism using simple animations, diagrams, and live-action demonstrations. The film introduces viewers to the workings of electromagnets, generators, and transformers, with disembodied hands conducting experiments to illustrate these concepts. A notable highlight is the depiction of energy transmission over long distances using hydroelectric sources, accompanied by period footage of electrical production equipment. While visually minimalistic, the film serves as a historic example of early science education, though it includes an error in a transformer voltage diagram that has gone unnoticed for decades. Despite its dry presentation, the quirky visuals and informative content reflect the scientific instructional methods of its time.

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