Word: clustering
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...Lindsay counts of the southern hemisphere are about 75 per cent complete and several important deductions have already been made from them. It is shown that the local cluster in which we live is of a diameter not greater than 3,000 light years, while former estimates had placed it at about 12,000 light years...
First recorded super-nova was observed in the Milky Way in 1572. It was visible in full daylight. Another appeared in Andromeda in 1885. Since 1900 about a dozen have been found by chance on photographic plates, mostly in the Virgo cluster of nebulae. Drs. Baade & Zwicky estimate that each galaxy has one super-nova every thousand years. The average nebula contains a billion stars. If one star committed suicide in the super-nova manner every thousand years, the nebula would be exhausted in one trillion years?which happens to be the figure commonly set by astrophysicists as the minimum...
...pockets of their sleeveless sweaters. At meal stops they are handed knapsacks of food & drink to consume en route. The Tour de France is marked by few grisly spills such as punctuate the Madison Square Garden grinds. As a rule the riders bowl along in a good-humored cluster, sprint near the end of the run for the daily prize money. On the windy seacoasts they take turns riding on the windward side of the pack. One race was so swift and grim that after the finish a rider was reported to have bought a train ticket over the route...
...front cover} Throughout the land last week, this week and next week, 1934's college seniors pack their trunks in hot little rooms, cluster on shaded campuses to say goodby, sweat under caps & gowns as they march up to receive diplomas which round out the first great period of their lives. Columbia had already sent 1,000 away from Morningside, their ears ringing with the counsels of Harvard's President James Bryant Conant and of their own pontifical President Nicholas Murray Butler, presiding over his 32nd commencement. At Cambridge next week President Conant was to preside...
...also put on a mask connected to a small oxygen tank carried in his hand. He clumped up a stepladder, lifted the box's lid. climbed down inside. A few slow seconds went by. A thick-gloved hand waved feebly. A spectator shouted. There was a quick cluster of men around the box as a dozen hands lifted out a limp figure. A physician named David H. Shulman removed the mask, found Mark Ridge's face cherry-red, said he would have been killed in an other five seconds by fumes which had leaked into the mask. Intrepid...