Flame, electricity and the camera; man's progress from the first kindling of fire to the wireless telegraph and the photography of color (1900)
Iles, George, 1852-1942 · New York, Doubleday & McClure co. · leaf 219
ready to dofor them, the enterprise would have perished in its cradle.As lines were lengthened from the needs of experimentto meet the demands of commerce and the press, therearose important questions of mechanical detail, of disposal, and of insulation.^ T In Chapter XII a word was saidabout the… … Fig. 55.Telegraph relay. though it may be, is still equal to making one wire touchanother, thus bringing into play a powerful local current, 1 During the first four days the receipts amounted to one cent. This wasobtained from an office-seeker, who said that he had nothing else than a twenty-dollar…
Fire · Electricity · Color photography
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