Word: radius
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Dates: during 1940-1949
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...obvious that all children are not imbued with the same desire to learn, nor are they equipped with equally potential learning capacities. Would it not be feasible to alter the radius of the learning circle by attempting to inject in all of them the existent truths of life, rather than forcing facts . . . upon them...
...Force's heavy bomber, can now cope with fighters and can hold its advantage for a while. Though much slower (about 400 m.p.h. in emergencies) than fighters, the 6-36 flies at an altitude where jet engines lose much of their power. Further, the wide turning radius (five to ten miles) of a fast fighter in the thin upper air makes it hard for it to maneuver into position to attack the 6-36, which is fitted out with massive firepower for defense...
...from four rooms ($4,700) to six ($8,550) take ten days to build. They move on rollers out of a shed and along an assembly line. When completed, they are loaded onto a house mover's dolly and hauled to the building site (within a ten-mile radius). There the house is worked onto a concrete block foundation. The final plumbing and electrical connections can be made the same...
...Planck's Constant divided the flow of energy into "smallest" bursts (the "quantum" of the quantum theory). Gamow suspects that this missing length may turn out to be about 10 -13 centimeter (one ten-trillionth of a centimeter). A length close to this shows up as the radius of an electron, and as the effective range of forces in the atomic nuclei. "All kinds of physical considerations," says Gamow, "become senseless when we try to apply them to distances smaller than 10 -13 centimeter...
...telephone switchboard answers 50,000 calls every 24 hours, with recorded weather information. It operates a teletype system which supplies 38 radio stations and 30 newspapers with predictions. It recently started a radio facsimile transmission service, which sends weather maps within a 70-mile radius of the city. Though still far from perfect, its information has improved in accuracy immensely during the three decades of Parry's service in New York...