This Scientific Age: Essays in Modern Thought and AchievementDugald Caleb Jackson, Walter Paul Jones J. Wiley & Sons, Incorporated, 1930 - Počet stran: 353 |
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Výsledky 1-3 z 47
Strana 44
... electric cur- rent instead of the blowpipe for melting the metal . Two zinc wires connected with any electric system , preferably the direct , are fed into the " pistol . " Where the wires meet , an electric arc is set up and the melted ...
... electric cur- rent instead of the blowpipe for melting the metal . Two zinc wires connected with any electric system , preferably the direct , are fed into the " pistol . " Where the wires meet , an electric arc is set up and the melted ...
Strana 50
... electric light bulb . Another new metal called " permalloy " is made by melting together about 80 per cent nickel and 20 per cent iron . When brought into the vicinity of an electromagnet it becomes more quickly mag- netized and ...
... electric light bulb . Another new metal called " permalloy " is made by melting together about 80 per cent nickel and 20 per cent iron . When brought into the vicinity of an electromagnet it becomes more quickly mag- netized and ...
Strana 54
... electric lamps are about 0.03 of an inch in diameter , and they give three times the light for the same consumption of electricity as the old carbon filament . The American manufacturers of the tungsten bulb have very appropriately ...
... electric lamps are about 0.03 of an inch in diameter , and they give three times the light for the same consumption of electricity as the old carbon filament . The American manufacturers of the tungsten bulb have very appropriately ...
Obsah
Descriptive Essays I II III | 1 |
THE HOUSE OF A THOUSAND MARVELS M | 20 |
METALS Old and New Edwin E Slosson | 36 |
Autorská práva | |
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This Scientific Age: Essays in Modern Thought and Achievement Dugald Caleb Jackson,Walter Paul Jones Zobrazení fragmentů - 1930 |
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