Word: flow
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Dates: during 1960-1969
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Extreme cold also produces the phenomenon of superconductivity, which scientists are putting to work in scores of applications. As temperatures approach absolute zero, the electrical resistance of many elements and compounds suddenly disappears. These substances become highly efficient conductors, and small voltages produce large currents that continue to flow indefinitely even after the power source has been withdrawn. Scientists can now envision a superconductive power-transmission line cooled by liquid helium that could carry 100 billion watts of direct current for hundreds of miles with no appreciable losses...
Closet-Size Shoe Box. Because the large currents that flow in superconductors generate the intense magnetic fields needed in atom smashers and in controlled fusion experiments, superconductors will eventually replace bulky elecromagnets in these areas. A 1-lb. superconducting magnet cooled by a 200-lb. refrigerating system and powered by a 6-volt battery can produce as intense a magnetic field as an iron-core electromagnet weighing several tons and requiring 50 kilowatts of power. Entire trains could be suspended above their roadbeds in strong magnetic fields produced by superconducting magnets, enabling them to travel more smoothly and with less...
...time "to wage a different kind of war" in which we place "human needs and values first," Kennedy told an over-flow audience at the Harvard Medical School. Our country must end its "reliance on sheer power," he said...
...airpower attempted to choke off the flow of Soviet and Chinese weaponry into Viet Nam, U.S. troops of the 9th Infantry Division turned up dramatic evidence that war materiel is still finding its way South. Tracking suspicious footprints in the thick jungle of Phouc Tuy province, some 30 miles east of Saigon, a 20-man patrol discovered a tunnel so recently deserted that a candle was still flickering inside. From a maze of interlocking tunnels and chambers, the troops toted out a huge cache of ammunition and at least 675 weapons, including Chinese-made recoilless rifles and brand-new Soviet...
Ford was showing signs of strain. Having lost production of some 228,000 cars thus far, its dealers have fewer than 140,000 on hand, barely a third of them '68s. With the flow of U.S.made parts ended, its Canadian operations have all but stopped...