Word: carbon
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Dates: during 1950-1959
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...elected Charles Baker Shuman, head of the Illinois Agricultural Association. Shuman, 47, is a teetotaling Sunday School teacher who owns a corn, cattle and soybean farm near Sullivan, Ill. Almost painfully serious, he lacks Kline's charm and self-assurance, but in farm policy, the two men are carbon copies. Both oppose rigid supports and Government controls...
...Neutrons from an H-bomb turn atmospheric nitrogen into large amounts of radioactive carbon-14, whose half-life is 5,600 years. Absorbed by plants, it eventually enters the tissues of animals and humans. Results: unpredictable...
...award will be presented Jan. 24. The honor is sponsored by the Bakelite Co., a division of Union Carbide and Carbon Corp., of New York...
...world's generals and statesmen, the radioactive "fallout" from nuclear explosions is a grave worry for the future. For scientists who date ancient objects by Carbon 14. it is already a serious nuisance and threatens to get worse. Southwestern laboratories near the Nevada atom-bomb testing ground have found it impossible to use Carbon 14; there is too much competing radioactivity in their vicinity. Even on the Eastern seaboard, Carbon 14 work at the University of Pennsylvania has often been stopped by a radioactive cloud drifting slowly overhead. The "background radiation" gets so strong that the voice of Carbon...
...result, scientists have already begun to make corrections. Background radiation, if not too powerful, can be screened away by more elaborate shielding. Samples to be tested can be purified by turning their carbon into a gas that leaves the fallout particles behind. Most of the laboratories are already planning to shift to the gaseous method, which has other advantages also. But if bigger bombs are tested in larger numbers, scientists may have to abandon their cherished system of Carbon 14 dating...