Word: arcs
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Dates: during 1940-1949
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...thin-lipped Junker von Bock, who has squandered men to win and lose some of Nazi Germany's greatest battles,* poured military dispatches that told him his foe was all but whipped in the northern Caucasus, that Timoshenko's main strength was apparently concentrated in a vast arc before Stalingrad, that German positions along the Don at Voronezh were safe for the moment. Bock might be on the threshold of an even greater victory. He could look with satisfaction on what his Panzers, shock troops, snub-nosed caterpillar guns and rank-on-rank of efficient infantrymen had achieved...
...sensational advance in industrial technique was revealed last week and immediately opened the way for major advances in the aviation industry. The new technique: arc-welding of magnesium. Result: the further development of the so-called flying wing-a weird, batlike plane with no tail, no fuselage and an extraordinary efficiency (TIME, Oct. 27). Some other results...
...Magnesium arc-welding-and perhaps the flying wing-will remain monopolies of the U.S. and its allies. Reason: arc-welding magnesium requires helium, which is found in useful quantities only...
Until last week, arc-welding magnesium was almost as impossible as welding paper, and for the same reason: this most inflammable metal* would ignite from the heat of the welder's electric arc just as it does in magnesium incendiary bombs. But after two years of research, engineers of Northrop Aircraft Inc. discovered that magnesium can safely be arc-welded if the hot metal is blanketed with helium to exclude atmospheric oxygen. The helium also cools the molten metal, acts as a metal-cleaning flux...
Then, a few moments before noon, something happened. At third-floor level, a plane roared defiantly up the Champs-Elysées. Before the Arc de Triomphe it zoomed, then dipped in salute to the Unknown Soldier, dropped a huge, weighted tricolor. Circling, the plane thundered back down the Champs-Elysées. At the Place de la Concorde it swerved toward the Rue Royale and sent shell after cannon shell smashing into German military headquarters (once the French Ministry of Marine). The plane vanished to the northwest, followed only by a few feeble tracer bullets...