Word: tungsten
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Dates: during 1920-1929
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...Borates-Tungsten", Professor Palache, Mineralogy lecture room, University Museum...
...competitive groups of metallurgist-salesmen chafed last week at industry's slow take-up of a scientific development-tungsten, carbon and cobalt so combined that they made a new material for cutting-tools. The men on one side were employed by the Carboloy Co., General Electric subsidiary; on the other by Thomas Prosser & Son, for 75 years U. S. selling agents for Krupp. Both Krupp and General Electric have independently developed similar metals. Krupp calls its widia (from wie diamant, "like diamond"); General Electric calls its carboloy...
Carbaloy (tungsten carbide plus cobalt) machine shop tool metal...
...Coolidge began to explain his further experiments with cathode rays. Dr. Coolidge, assistant director of the General Electric Co.'s research laboratories, had just received the Institute's Edison Medal for his "contributions to the incandescent electric lighting and x-ray arts" by his development of ductile tungsten for bulb filaments and x-ray targets. At the same ceremony John Joseph Carty of the American Telephone & Telegraph Co. had received the John Fritz Medal for his "development of research in the telephone...
...joined three of his vacuum tubes in tandem and in the connecting necks placed hollow metal cylinders. From a tungsten filament cathode in the first tube, 300,000 volts of electricity shot cathode rays into the first metal cylinder, which functioned as anode to the first and cathode to the second. There 300,000 more volts kicked the speeding electrons into the next similarly acting cylinder, where 300,000 more volts gave a final kick. The rays cascaded out of the apparatus at 175,000 miles per second-almost as fast as light, 350,000 times faster than a rifle...