Word: tungsten
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Dates: during 1950-1959
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...converter is made of two plates of tungsten that are a fraction of a millimeter apart. Between them is a vapor in near vacuum. The plates are so treated that they have different electric potentials. (G.E. will disclose neither the vapor nor the method of treating the plates.) The plate with the higher potential is heated to about 1,500° centigrade, the other to around 1,000° centigrade. The first plate is hot enough to release electrons; the second is not. Clouds of electrons boil off the hotter plate (the cathode) and are attracted to the cooler plate...
...American miners. I want to convince them of the possibilities of exploitation of my country." He pointed out that Burma's government-sponsored Foreign Investment Act, which is expected to be passed early next year, will open up the country's nationalized lead, coal, zinc, tungsten and tin mines to private operation on a lease from the government. U Tin U himself has applied for the Lone Chang zinc mine, announced that he was willing and able to put 200,000 Burmese kyats ($16,000) into its development, wants a foreign partner...
...forbidding Ahaggar mountains in the central Sahara, prospectors have found samples of gold, platinum, nickel, tin, chromium, asbestos, tungsten, uranium, copper, and one small diamond. But the area is separated from the nearest port by 1,400 miles of sand-swept desert trails. Admitted the French government's mining boss in Algeria, Turquet de Beauregard: "Even if we discovered a mountain of pure iron down there, it would not pay to ship it. So we have to look for very precious ores, such as platinum and uranium, which would be worth sending by plane...
...Middle African man-in-the-bush was for the most part unaware of the rich potential of the land beneath his feet. There, waiting to be found by the white man, were some of the earth's greatest stores of precious gems, iron, coal, gold, tin, copper and tungsten for the dawning age of electricity, pitchblende from which the minerals of the atomic age would one day be refined, and scores of other metals...
Though some officials still think the domestic industry should go on under protection, one Interior Department tungsten expert disagreed. Said he: "We're jerking out of the ground tungsten that we shouldn't have to pull out for the next 50 years. McKenna is right. Since we've got enough tungsten for an emergency, let's leave it in the ground...