Hubert, Philip Gengembre, 1852-1925 · New York, C. Scribner's sons · leaf 247
re of metal or other substance ifheated to incandescence in a Hass bulb from o which the air has been exhausted will give lightfor a longer or shorter time, according to thecharacter of the apparatus and the degree towhich a perfect vacuum has been effected inthe bulb—this elates from the first… … Edisons Paper CarbonLamp. ful current was passed through the carbonfilament it became luminous and remained so fora short time. This was, perhaps, the first of a long line of similar experimentsin which a number of Americanphysicists- -Farmer, Draper,Henry, Morse, and Maximamong them- -took part.…
Inventors
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