Transfer of Power
1939 · 20 min · Documentary
Geoffrey Bell’s Shell Film Unit short (produced by Arthur Elton) turns the history and physics of power transmission—from lever and pulley to the toothed gear—into a crisp lesson, blending live action with Francis Rodker’s animated diagrams to show how gearing underpins modern industry. Often cited as a model of clear scientific exposition.
- Director
- Geoffrey Bell
- Released
- January 1, 1939
- Language
- English
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