Word: coppered
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...years. She has stocks on hand, said the Ministry, for an all-out war for at least twelve months. Japan can probably mobilize another million men for action before it cuts seriously into her industrial production. Japan has abundant stockpiles of such key materials as chrome, tungsten, phosphates, copper, zinc. Most of these materials were purchased from the U.S. and Allied countries during the past few years. Said one U.S. soldier in the Philippines when a bomb dropped near him: "We sold 'em this stuff and now they're giving it back...
...defense production. Commonest form is spot welding: two pieces of thin metal are fused together by the heat generated, due to their electrical resistance when an electric current passes through them. Unlike arc welding, melting of the current-feeding electrode is avoided by: 1) making the electrode partly of copper, whose resistance is very low; 2) mixing the copper, through powder-metal techniques (TIME, Sept. 29), with compounds whose melting point is far higher than steel's; 3) cooling the electrode with water...
...much as steel, but [stainless] steel is more than four times as strong as aluminum in pull and tension. Recent developments in structure mathematics now enable us, even in small planes, to build trusses of thin stainless steel of equal weight to duralumin [an alloy containing 95% aluminum, 4% copper, ½ % manganese and ½ % magnesium while in larger ships there is a greater advantage to the steel construction...
...Copper. From the U.S. in 1938 she got 110,000 tons. She also got a lot from Chile until early this year. Her own production is about 85,000 tons a year...
...From the dim recesses of the Library of Congress, the Capitol, Senate and House Office Buildings, Capitol Architect David Lynn recovered 285 tons of scrap-old motors, brass book ends, aluminum and steel strips, copper scraps...