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 135
Fig. 27. Voltas crown of cups. … Fi(- 35-Faradayb magneto-eleclric machine. THE FIRST DYNAMO 107 nicely poised. Faraday developed the converse truth—that a magnet moved near a conductor induces a currenttherein. That here was a means of generating electricityby mechanical means he at once proceeded to show. Adisc of copper a foot…
Fire · Electricity · Color photography
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