Word: crab
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Dates: during 1960-1969
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...Disney and Donald Taylor defied the beliefs of more experienced astronomers who were certain that the strange objects would be too small and distant to be seen through terrestrial telescopes. Undaunted, they pointed the 36-in. telescope at Arizona's Steward Observatory toward a small star in the Crab nebula, the glowing, cloudlike remnant of a supernova (stellar explosion) that was first witnessed from earth...
...Arizona astronomers had three good reasons for picking their target: 1) most scientists now believe that pulsars are neutron stars, small and incredibly dense spheres that are residues of exploded stars like the one that formed the Crab nebula; 2) a pulsar had recently been detected in the Crab by radio telescopes and 3) the Crab pulsar, or neutron star, beeps faster than any discovered to date. Thus it is presumably younger, hotter and brighter, and could be seen more easily than any other...
...first inkling that pulsars might not be reliable timepieces came after Cornell University astronomers at Arecibo, Puerto Rico, trained their 1,000-ft. radio telescope on a newly discovered pulsar in the Crab Nebula, the glowing remnant of a supernova-or stellar explosion-that was seen from earth in A.D. 1054. Unlike most other pulsars, which have relatively low repetition rates (between one and four per second), the new find was ticking about 30 times per second. Carefully measuring the pulse rate in October and then again in November, the astronomers found that it was slowing down by about...
Strange Bodies. Last week it became evident that the slowdown observed in the Crab may well be the rule rather than the exception among pulsars. Completing highly precise measurements on the first four original pulsars that they had discovered, British astronomers found that these, too, were running down -at the barely perceptible rate of about one beat in 10 million every year...
...rally in Trenton was at the Civic Center, a dirty red brick building from around 1890 that now stands in front of a great expanse of bull-dozed wasteland covered with crab-grass and bits of broken pavement. The auditorium had about 3000 people in it when Wallace arrived, and the seats were arranged in a square with no one in the middle and no one behind the speaker's platform. This arrangement is designed to cut down on the risk of assassination, and also to reduce the contact between Wallace's supporters and the hecklers, who had turned...