Word: coppers
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Dates: during 1940-1949
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...February, when the vast expansion of the plane program forced him to retract his previous reassurances and put aluminum, as well as machine tools, under the first full mandatory priorities. By year's end the defense demand had also elbowed civilian demand out of the market for copper, brass, nickel, tungsten, zinc, magnesium, tin, and even steel...
...other hand, needs copper, zinc and lead, not gold. A change for fiscal reasons in its gold-purchase policy is the farthest thing from the Treasury's mind. But the U.S. had another club over Empire miners, and it was fingering this club last week. It can refuse to export any new gold-mining machinery, which many an Empire mine-to maintain and (in some cases) expand production-is still trying to buy in the U.S. Before long SPAB is due to rule on these pleas, and the odds are that SPAB will be pretty tough, will...
...been found that some of steel's former disadvantages can be overcome by plating it thinly with copper. This protects the steel from 1) rust, 2) damage by powder fumes, which corrode unplated steel casings so badly that they can be used only once, though brass casings can be re-used four times. Copperplated steel casings, however, seem to be resistant enough to be re-used 15 times-a great saving even though steel is harder to tool in the first place...
This week, while G.E. is starting work on a giant 100,000,000-volt model, Kerst is shipping his betatron to his laboratory in Illinois to see what discoveries he can make with it. Its electron beams have already penetrated inch-thick aluminum, made copper radioactive. Its medical applications, like those of the cyclotron which once struck the bewildered public as a useless device, must be explored. In time the betatron may be able to produce earthborn artificial cosmic rays, whose fantastic energies - hundreds of millions of volts - now smite the earth mysteriously from among the stars...
...Because the temperature ran to 150° F., Magma Copper would have abandoned its 4,600-ft.-deep Arizona mine. But air conditioning pulls the mercury to 90° F. and the mine is producing at record clip...