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 421
his great penetrative power, it seemed natural thatthey should penetrate flesh, and so it proved in photographingthe hand, as I showed you. For twenty years before their detection the X rays hadbeen created in experiments with the Crookes bulbs.Rontgens great discovery was no accident. He wasat the… … Fig. 90.Crookes tube photographing the bones of a hand. black streak, excitable only by rays of known orunknown species. Without the trained intelligence toobserve an unusual phenomenon so slight in degree, andfollow it up patiently to its cause, the X rays would havefallen as vainly across his…
Fire · Electricity · Color photography
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