Word: zero
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Dates: during 1950-1959
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Another Chinese physicist at Columbia, Associate Professor Chien-Shiung Wu, went to Washington. Working with a topflight team at the National Bureau of Standards, she arranged an elaborate deepfreeze apparatus to cool radioactive cobalt 60 to 0.01° above absolute zero ( - 273.1° C.). The cobalt nuclei are known to be spinning, and they continue to spin in the deepfreeze, but their random "thermal" motions are reduced almost to nothing by the extreme cold. This accomplished. Dr. Wu and her helpers applied a powerful magnetic field that pointed the cobalt nuclei in one direction as if they were tiny magnets...
...warmer mid-20-degree weather brought in by a snow-bearing low pressure system should not last long. By late Friday or Saturday, temperatures will have once again sunk to near zero depth...
Temperatures plummeted to well below zero last night, and broke thermometers in Old Maine, where the official reading was minus 30 degrees. Here in Cambridge milk bottles shatter regularly, and ice on the sidewalks has turned to stone...
...temporary low, bringing warmer weather and snow, is expected to relieve Cambridge late tonight. A second cold high, due in Thursday, will end this, however, once more pushing temperatures down near or below zero...
...climbing season some 75,000 mountaineers flock to the resort town of Chamonix to have a try at scaling her heights, and most of them succeed. But in the winter, when her steep slopes are swept by gales often reaching 100 miles an hour and the temperature drops below zero, the icy-hearted mountain becomes a fickle and merciless termagant. Few, even among expert mountain climbers, care to risk her treachery in the off season, and to those who do, the professional guides in Chamonix offer only negative encouragement. "Risk your neck if you like," they say in essence...