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Books Books 1 - 10 of 10 on As a matter of curiosity I have made spirals of other metals, and excluded the air....  
" As a matter of curiosity I have made spirals of other metals, and excluded the air from them in the manner stated. Common iron wire may be made to give a light greater than platinum not treated. "
Thomas Alva Edison: Sixty Years of an Inventor's Life - Page 130
by Francis Arthur Jones - 1908 - 362 pages
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Proceedings of the American Association for the Advancement ..., Volumes 27-28

American Association for the Advancement of Science - 1879
...standard candles by the expenditure of 30,000 foot pounds of energy, or less than one horse power. AB a matter of curiosity I have made spirals of other...be made to give a light greater than platinum not treated. The iron becomes as hard as steel and just as elastic. Nickel is far more refractory than...
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American Journal of Dental Science, Volume 13

Dentistry - 1880
...candles, by the expenditure of thirty thousand foot pounds of energy, or less than one horse power. "As a matter of curiosity I have made spirals of other...but remains hard and assumes the color of silver. Aluminum melts only at a white heat."—Scientific American. ARTICLE VII. Pittsburgh Dental Association....
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Proceedings of the American Association for the Advancement of Science

American Association for the Advancement of Science - Science - 1880
...standard candles by the expenditure of 30,000 foot pounds of energy, or less than one horse power. As a matter of curiosity I have made spirals of other...be made to give a light greater than platinum not treated. The fron becomes as hard as steel and just as elastic. Nickel is far more refractory than...
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Proceedings of the American Association for the Advancement of Science

American Association for the Advancement of Science - Science - 1880
...standard candles by the expenditure of 30,000 foot pounds of energy, or less than one horse power. As a matter of curiosity I have made spirals of other...be made to give a light greater than platinum not treated. The iron becomes as hard as steel and just as elastic. Nickel is far more refractory than...
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Proceedings of the American Association for the Advancement of Science

American Association for the Advancement of Science - Science - 1880
...standard candles by the expenditure of 30,000 foot pounds of energy, or less than one horse power. As a matter of curiosity I have made spirals of other...be made to give a light greater than platinum not treated. The iron becomes as hard as steel and just as elastic. Nickel is far more refractory than...
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Electric light, its production and use. Ed. by F.C. Webb

John W. Urquhart - 1880
...expenditure of 30,000 foot-lbs. of energy, or less than one horse-power. As a matter of curiosity he made spirals of other metals, and excluded the air...be made to give a light greater than platinum not treated. The latest outcome of Mr. Edison's praiseworthy labours to obtain a constant burner by electric...
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Electric Light, Its Production and Use

John W. Urquhart - Electric lighting - 1880 - 290 pages
...expenditure of 30,000 foot-lbs. of energy, or less than one horse-power. As a matter of curiosity he made spirals of other metals, and excluded the air...be made to give a light greater than platinum not treated. The latest outcome of Mr. Edison's praiseworthy labours to obtain a constant burner by electric...
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Pharmaceutical Journal;: A Weekly Record of Pharmacy and Allied Sciences

Pharmacy - 1880
...giving out an absolutely steady light, end each equal to sixteen standard candles, or a total of 128 candles, by the expenditure of 30,000 foot-pounds...pianos becomes decarbonized, but remains hard, and becomes the colour of silver. Aluminium melts only at a white heat. In conclusion, it may be interesting...
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The Electrical Review, Volume 7

Electric engineering - 1879
...a total of one hundred and twenty-eight candles, by the expenditure of thirty thousand foot pounds of energy, or less than one horse-power. " As a matter...refractory than iron. Steel wire used in pianos becomes decarbonised, but remains hard and assumes the colour of silver. Aluminium melts only at a white heat."...
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Journal of the Franklin Institute

Electronic journals - 1879
...total of 128 candles, by the expenditure of 30,000 foot-pounds of energy, or less than one-horse power. As a matter of curiosity I have made spirals of other...pianos becomes decarbonized, but remains hard, and becomes the color of silver. Aluminum melts only at a white heat. In conclusion, it may be interesting...
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