Word: tungsten
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When the fattened-up electrons are making their last turn around the tube, they are deflected by special magnets and made to strike a tungsten target, knocking out of it a slender beam of enormously powerful X rays. In effect, a betatron is an outsized X-ray tube; the X. rays are its desirable product...
...worked for three years, introducing various gases into an incandescent lamp bulb just to see what would happen. In 1912 he made his first important discovery: an electric bulb filled with nitrogen was more efficient than the so-called "vacuum" bulb, since the gas retards evaporation of the tungsten filament. It displaced the old vacuum bulb, saved users of electricity a billion dollars a year...
Rice & Rubies. Prewar Burma was the world's largest exporter of rice, teak, rubies and jade. Its oil wells supplied its own needs and most of India's. The Mawgmi mine was the world's chief single source of tungsten...
...Tungsten Cartel. A federal district court found General Electric, two of its subsidiaries, and three of their officials guilty in an antitrust suit of conspiring with Germany's Krupp between 1927 and 1940 to monopolize world trade in tungsten and other hard metals. G.E., planning an appeal, claimed that "the law applicable to situations of this kind is in a state of utter chaos...
...wool, from 34? to 25.5? per lb. ¶ Tungsten ore, from 50? to 38? per lb. ¶ Chinaware, from 45% to 25% of the value of the decorated items; from 40% to 25% on undecorated ware...