リソース タグを付けた: Pedal Powered Mechanisms
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1986/01/01 Over the centuries, the treadle has been the most common method of using the legs to produce power. Treadles are still common in the low-power range, especially for sewing machines. Historically, two treadles were used for some tasks, but even then the maximum output would have been quite small,...
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1977/01/01 1) How to produce your own energy from a stationary bicycle (2) Perform kitchen tasks using pedal-powered equipment (3) Watch TV from electricity produced at home (4) Actual building instructions for a newly designed energy cycle! 133 pages, illustrated, photos