Word: copper
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Dates: during 1960-1969
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...subatomic world and its host of recently discovered particles, scientists are rapidly refining and adding to the spectacular tools of high-energy physics: the massive and powerful bevatrons, cyclotrons, synchrotrons and linear accelerators. The latter are designed to fire beams of particles, usually high-speed electrons, down a long copper tube at experimental targets. Stanford University, for example, now has a two-mile-long atom-smashing model called SLAC (TIME, July 22). SLAC, which stands for Stanford Linear Accelerator, is just beginning its experimental program. Yet last week Stanford Physicist Alan Schwettman reported in Washington that a prototype...
...device differs from SLAC and the others in its ability to fire electrons continuously. In previous linear accelerators, the high-frequency radio waves used to accelerate electrons through the copper tube could quickly produce high temperatures by generating electric currents in the walls of the tube. To prevent serious heat damage, the electrons were fired in very short bursts. Stanford's SLAC is designed to fire electrons in millionth-of-a-second bursts separated by intervals of a thousandth of a second...
...days ago, faced with a possible halt in production of the copper and cobalt that account for 50% of his country's revenues, Mobutu swallowed his slogans, signed an agreement for continued operation of the mines with Sociètè Gènèrale des Minèrals (called S.G.M.), a Union Minière affiliate. "This is not a betrayal," he avowed on TV last week. Nevertheless, Congolese students drummed up discontent, and one leading businessman wired Mobutu: "We have undressed Peter to dress Paul...
...will handle the payment of guaranteed hard-currency wages to non-African workers. The agreement cannot be terminated until 1972, and then only if two years' notice has been given by either party. S.G.M. will make 4.5% or some $15 million a year, plus expenses, on sales of copper for the new Congolese management...
Still to be settled: compensation of Union Minière for $800 million in seized assets, and claims by the Congo on $100 to $150 million worth of copper in shipment at the time the mines were nationalized...