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Dynamo Types, 19th Century
Photograph - Photograph
Dynamo types. Dynamos are devices that convert mechanical energy into electrical energy by rotating magnets and coiled wires. Top row, left to right an Edison-Hopkinson dynamo; an intermediate Gramme dynamo; and an Edison dynamo. Bottom row, left to right a Burgen and Crompton dynamo; an Eddy and Mather dynamo; and a Fugerson dynamo. Artwork from the eighth volume (second period of 1891) of the French popular science weekly 'La Science Illustree'.
May 8th, 2013
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