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Books Books 1 - 10 of 11 on I coated the wire forming the spiral with the oxide of magnesium by dusting upon....  
" I coated the wire forming the spiral with the oxide of magnesium by dusting upon it finely powdered acetate of magnesium. While incandescent the salt was decomposed by the heat, and there remained a strongly adherent coating of the oxide. This spiral... "
Thomas Alva Edison: sixty years of an inventor's life - Page 128
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
...remained a strongly adherent coating of the oxide. This spiral, so coated, was covered with a glass shade and brought to incandescence for several minutes,...of platinum upon the glass, there was a deposit of oxide of magnesia. From this and other experiments I have become convinced that this effect was due...
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English Mechanic and World of Science: With which are ..., Volume 30

Industrial arts - 1880
...shade and brought to incandescence for several minutes ; but iustead of a deposit of platinum upon tho glass there was a deposit of the oxide of magnesia....upon the spiral; that the loss of weight in and the colouration of the hydrogen flame was also due to the wearing away of the surface of the platina, by...
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Proceedings of the American Association for the Advancement of Science

American Association for the Advancement of Science - Science - 1880
...the glass, there was a deposit of oxide of magnesia. From this and other experiments I have become convinced that this effect was due to the washing...of the hydrogen flame was also due to the wearing awaj of the surface of the platina by the attrition produced by the impact of the stream of gases upon...
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Electric light, its production and use. Ed. by F.C. Webb

John W. Urquhart - 1880
...there remained a strongly adherent coating of the oxide. This spiral so coated was covered with a glass shade and brought to incandescence for several minutes;...oxide of magnesia. From this and other experiments Mr. Edison became convinced that this effect was due to the washing action of the air upon the spiral...
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Electric Light, Its Production and Use

John W. Urquhart - Electric lighting - 1880 - 290 pages
...there remained a strongly adherent coating of the oxide. This spiral so coated was covered with a glass shade and brought to incandescence for several minutes...oxide of magnesia. From this and other experiments Mr. Edison became convinced that this effect was due to the washing action of the air upon the spiral...
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Proceedings of the American Association for the Advancement of Science

American Association for the Advancement of Science - Science - 1880
...remained a strongly adherent coating of the oxide. This spiral, so coated, was covered with a glass shade and brought to incandescence for several minutes,...of platinum upon the glass, there was a deposit of oxide of magnesia. From this and other experiments I have become convinced that this effect was due...
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Proceedings of the American Association for the Advancement of Science

American Association for the Advancement of Science - Science - 1880
...remained a strongly adherent coating of the oxide. This spiral, so coated, was covered with a glass shade and brought to incandescence for several minutes,...of platinum upon the glass, there was a deposit of oxide of magnesia. From this and other experiments I have become convinced that this effect was due...
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Electric light, its production and use. Ed. by F.C. Webb

John W. Urquhart - 1883
...the glass, there was a deposit of the oxide of magnesia. From this and other experiments Mr. Edison became convinced that this effect was due to the washing...the air upon the spiral ; that the loss of weight and the colouration of the hydrogen flame was also due to the wearing away of the surface of the platina,...
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Electric light, its production and use: embodying plain directions for the ...

John W. Urquhart - Architecture - 1891 - 406 pages
...the glass, there was a deposit of the oxide of magnesia. From this and other experiments Mr. Edison became convinced that this effect was due to the washing...the air upon the spiral ; that the loss of weight and the coloration of the hydrogen flame was also due to the wearing away of the surface of the platina,...
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Proceedings of the American Association for the Advancement of Science

American Association for the Advancement of Science - Science - 1880
...of the oxide. This spiral, so coated, was covered with a glass shade and brought to inc:indescence for several minutes, but, instead of a deposit of platinum upon the glass, there was a deposit of oxide of magnesia. From this and other experiments I have become convinced that this effect was due...
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