Word: carbons
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Dates: during 1970-1979
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...committee selected the proposals submitted by Boston Urban Associates--The Architects' Collaborative of Boston and Cambridge, the Cambridge Carbon Co./Benjamin Thompson Associates of Cambridge, and The Carpenter and Co./Cambridge Seven Associates...
Archaeologists and paleontologists trying to ascertain the age of bone, wood and charcoal from ancient sites have long employed a technique called carbon-14 dating. This dating game has its drawbacks: it requires the destruction of a sizable portion of the sample and cannot, without costly and time-consuming treatment, determine the age of any object more than about 40,000 years old. But a new method promises to overcome both obstacles. A team of researchers from the University of Rochester, the University of Toronto and General lonex Corp. of Ipswich, Mass., is developing a way of dating objects that...
...method does not do away with the need to measure carbon 14, a radioactive atom that accumulates in all organisms while they live and decays at a known rate once they die. But it measures it in a different way. Current dating methods determine the age of an object indirectly, by measuring its carbon-14 radioactivity. The new technique being developed by Professor Harry Gove of Rochester and his fellow researchers measures the amount of carbon 14 directly. The scientists place a sample of the object to be evaluated in Rochester's tandem Van de Graaff particle accelerator...
...subtle perceptions." What upper-class conservationists are really concerned about, he insists, is saving their "salmon streams and grouse moors." Little fuss is ever made, he notes, about the more immediate environmental concerns of factory workers and slumdwellers: "Poverty is degradation, misery and starvation, not the level of carbon monoxide in the air." Growth, he repeats, is the best solution to poverty. Beckerman jokes that he would like to retire from the growth debate, but cannot just now because "the zero-growth merchants have been creeping back." He believes that their case is still pure rubbish. "What is so sacred...
...diabetics. Last week scientists at the University of California in San Francisco reported that they had taken an important first step toward that goal. Using the bold new technology, they not only gave a bacterium potential insulin-making capability but also got the bug to reproduce millions of precise carbon copies of itself, all with the same new characteristic...