Flame, electricity and the camera; man's progress from the first kindling of fire to the wireless telegraph and the photography of color (1901)
Iles, George, 1852-1942 · New York, Doubleday & McClure co. · leaf 124
loo THE PRODUCTION OF ELECTRICITY … Fig. 25.Galvanis experiment. Galvani noticed that a metal wire touching at one end the nerves of a frog, and at the other end the muscles of its leg, caused a momentary twitch- voita Invents the Pile ing. When he used two wires of differ- and the Crown of Cups. ^^^ ^^^^j^ ^^^ COUtractioUS WCrC much…
Fire · Electricity · Color photography
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