- Documentary
- 20 min
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.
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Crew
- Geoffrey BellDirector
- Sidney BeadleDirector of Photography
- Arthur EltonProducer
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