Word: hewish
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
...Swedish Academy of Sciences announced the 1974 Nobel Prizes for Chemistry and Physics. It gave the chemistry award to Professor Paul J. Flory, 64, of Stanford University, for his studies of macromole-cules, or large molecules. The physics prize was awarded jointly to Professors Martin Ryle, 56, and Antony Hewish, 50, both of England's Cambridge University, for their accomplishments in the field of radio astronomy...
...emanating from a secret U.S. radar experiment. In the mid-1960s, a Russian astronomer detected varying signals from a mysteri ous radio source; Tass breathlessly reported that the signals were a beacon from a supercivilization. The source was later identified as a distant, starlike quasar. When Cambridge Astronomer Anthony Hewish and his assistant Jocelyn Bell in 1967 recorded blips coming from space at precise intervals, they playfully named the sources LGMs (for Little Green Men) on the chance that they had detected the beacon of an advanced civilization. The LGMs were later named pulsars and recently identified as natural phenomena...
Somewhat belatedly, Astronomer Anthony Hewish, leader of the Cambridge University group that discovered pulsars (TIME, March 15), revealed the positions and the pulse rates of pulsars 2, 3 and 4. One of them blips every 1.27 seconds, another at 1.19-second intervals-close to the 1.34-second period previously reported for pulsar 1. Pulsar 4 pulses significantly faster: every quarter of a second. In addition, Hewish estimated that the fast-pulsing source is only 50 light-years away, compared with the 200-light-year distance he calculated for pulsar...
Blue Star. Using the coordinates given by Hewish, Astronomer Frank Drake trained the giant Arecibo, Puerto Rico, radio telescope on pulsar 3 and discovered that each of its signals was composed of two closely spaced peaks. The peaks were so sharp, he said, that the signal may originate from an object as small as a few hundred miles across; if pulsar 3 were much larger, the peaks would be gradual and less distinct. Using England's Jodrell Bank radio telescope, Astronomer Graham Smith discovered that the radio waves from pulsars are polarized, indicating that they pass through a magnetic...
...Multiplicity suggests a natural phenomenon," says Astronomer Hewish. "It would be stretching the imagination too far for all of them to be generated by intelligent beings." The Mullard team searched in vain for slight changes in signal frequency that would indicate it came from a planet or a double star system; in orbit around a star, for example, a planetary transmitter would alternately approach and recede from the earth, producing a Doppler effect that would first increase and then decrease the frequency of its signal...