Word: known
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Dates: during 1950-1959
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...thorium 232 atoms, turning them into unstable thorium 233. When thorium 233 decays, after a brief half life of 23 minutes, it becomes protactinium 233, which in turn decays after a half life of 27 days, becomes uranium 233, a full-fledged nuclear fuel as fissionable as the better known radioactive uranium isotope...
German Evangelical Church Day, known as Kirchentag, and the split that showed was the growing division between West Germany and the Communist East Zone...
...style act of songs and smart-aleck chatter and started right at the top of the nightclub circuit. The Crosby boys blew into Las Vegas' Sahara nightclub last month, after three successful weeks at Chicago's Chez Paree, on the greatest burst of friendly publicity they have known since they started collecting drunken-driving citations and showgirls some five years...
...issues in the steel strike are the twin threats of inflation and foreign competition, which have stiffened the stance of management toward the steelworkers' bid for higher wages. By last week, the fifth week of idleness for the biggest U.S. industry, these broad matters revolved around a little-known section of the steel contract that has brought negotiations to a virtual standstill. The section: the past-practices clause. Written into contracts since 1947, the clause jealously protects local working practices or customs that have existed regularly over a long period, in effect provides that...
...miracles that Poland today is "a one-time satellite whirling half out of its orbit," in daily danger of suppression but also in daily defiance of Moscow. The origin of the miracle is familiar. Ever since Hungary rebelled and Poland came close to open rebellion in 1956, Moscow has known that it could restore total domination over Poland only at the price of bloodshed. At the same time, the Poles have known that, if they sought total freedom, Moscow would not hesitate to pay the price. This potentially lethal balance is the basis of Poland's small measure...