Word: carbons
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Dates: during 1970-1979
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...Carbon monoxide levels in Harvard Square, he explains, are already "worse than anywhere else in the state--including the mouth of the Callahan Tunnel." Johnson says that additionl development, especially on the scale of the Carpenter proposal, will make a bad situation worse...
...produce it, he drew on the ideas of others, as he often did, though he gave them no credit. After experimenting with any number of materials, he hit on carbon. He tried to give the impression that he came up with that idea independently. In fact, says Biographer Conot, his laboratory notebooks prove that he read and underlined reports of the experiments of Joseph Swan in England. Swan had invented an electric bulb that used a fine carbon...
There were technical differences between the bulbs that, Edison's partisans say, made his superior. For example, Swan's carbon rod was fairly thick, Edison's filament was thin. But a crucial difference was that Swan stopped with inventing the bulb, while Edison took what would now be called a "systems approach"; he saw that the bulb had to be only one of a whole series of inventions. To make it in the first place, he and his assistants had to produce a more complete vacuum than had ever been known before. Then they had to devise...
...Greenland's Isua (Eskimo for "the farthest we can go") region, Ponnamperuma and other scientists found evidence of compounds called hydrocarbons, which are of major importance in organic chemistry. To discover whether these hydrocarbons had a biological origin, scientists analyzed the ratio of two isotopes, or forms, of carbon. They found that the amount of carbon 12, the isotope most utilized in biological processes, was high in relation to carbon 13. This indicates that the hydrocarbons were produced by photosynthesis, the process by which plants convert carbon dioxide into organic compounds and oxygen. Ponnamperuma's find shows that...
...field and a slick ball combined with some questionable Crimson strategy to give the Lion's a few opportunities in the first ten minutes. "We got caught up trying to play short passes," Ford explained. Harvard's bunching led to two, carbon copy break-aways by Shayan within three minutes. In both cases, he took an alley-oop style pass from behind midfield and broke in behind a Crimson defender, moving his gawky frame with deceptive speed. Walsh charged Shayan, inducing him to shoot wide to the right from high in the penalty area...