Word: yielded
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Dates: during 1960-1969
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...authorities, including the Atomic Energy Commission, the Public Health Service and the Weather Bureau, feel sure that the 1962 fallout will probably equal or exceed the 1959 peak, but they are not alarmed. The fission energy yield of the Soviet 1958 tests was 10 to 15 megatons. The total energy of last fall's Soviet tests was much greater (170 mega tons), but most of it came from nuclear fusion, which creates little fallout. Only about 25 megatons came from nuclear fission of uranium or plutonium, and since many of the Russian tests were exploded at high altitudes, their...
Citing the elaborate, and apparently highly successful, crash program that has been carried out in high school physics and mathematics teaching techniques as a model, Mayer indicated that only such a serious and concentrated approach could yield fruitful results...
...Development tests of new weapons. Ogle's scientists will be trying to improve the vital weight-yield ratio-a bigger blast from a smaller package. Special attention will be paid to the nuclear warhead of the Nike Zeus, the missile being developed by the Army to intercept enemy warheads as they hurtle down on the U.S. To find out how the blast of a Nike Zeus will affect a missile at high altitudes, the scientists will make at least one test of the weapon on the warhead of an Atlas, one of the prime missiles in the U.S. arsenal...
Next week the Boston Redevelopment Authority will begin demolition of an historic row of bookshops along Cornhill in downtown Boston. The Oldest extant book store in America, browsing ground of Emerson, the elder Homes, and Whittier, will yield to a new Government Center. And while a few citizens struggle to maintain some evidences of the past, the rest of Boston stands idly...
...hard to swallow was the realization that if Beech-ing succeeds in adapting to modern needs and techniques a 50,000-mile network designed for the 1880s, scores of branch lines and hundreds of its 7,000 stations will disappear. The last of the beloved "puffing billies" will yield to gaseous diesels or electric locomotives, and the aromatic privacy of the old first-class passenger compartment will give way to open, air-conditioned cars with central aisles, airliner seats and Muzak...