Word: tungsten
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Dates: during 1940-1949
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Ordinary lamps emit light from a considerable area, usually a glowing coil of tungsten wire. This makes shadows fuzzy, causes all sorts of trouble in optical instruments. Scientists have long yearned for a convenient, cool "point source" of light. Now, according to Western Union, they...
...Union calls its lamp a "concentrated arc." Inside a small glass bulb filled with argon gas are two electrodes. On one is a tiny speck of zirconium oxide. When the current flows, this turns to molten zirconium metal, glows ten times as brightly for its area as the brightest tungsten filament...
...such a way that "until 1939, Canadian consumers were deprived of low-priced radio sets of a type which had been available in the U.S. for a considerable period." ¶When the U.S. General Electric Co. and the German Krupp interests made an agreement on the sale of cemented tungsten carbide (for machine tools), Canadian importers could buy it only from G.E., which raised the price from $50 a pound to $453. After the U.S. Government indicted G.E. in 1940 (antitrust law violation), the price skidded to $32 a pound...
Then the current in the coils begins to fall. A secondary magnetic field deflects the electrons from their circular course. They spiral inward and hit a tungsten "target." Out bursts...
Twenty years ago he himself made headline news with his own experiments with atomic power, and The Literary Digest carried a long report on how Dr. Wendt had released atomic energy by bombarding tungsten in a vacuum tube at a temperature six times as hot as the sun and transmuting some of the tungsten into helium...