Word: celsius
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Tiny Bombs. Still, to join enough deuterium and tritium nuclei to sustain a fusion reaction requires heroic efforts. Deuterium-tritium gas mixtures must be heated to as much as 100 million degrees Celsius and be maintained at that temperature for about one second at a density of about 1014 (100 trillion) particles per cubic centimeter. Scientists have taken two different routes in their efforts to achieve these critical conditions. One is to use a "magnetic bottle" -an enclosing magnetic field-to contain the hydrogen fuel. The other is to use lasers or electron beams to make miniature hydrogen "bombs...
KOBUK VALLEY. Fifty-six kilometers (35 miles) north of the Arctic Circle, the Kobuk Valley presents another topographical surprise-a stretch of glacier-formed sand dunes, some as high as 30 meters (100 ft.), where summer temperatures can soar to more than 38° Celsius (100°F.). The desert-like dunes are more than 33,000 years old; pre-Eskimo archaeological sites along Onion Portage, which cuts through them, are estimated to be 10,000 years old and are considered among the most important in the Arctic...
...doomsayers note evidence that average temperatures in the Northern Hemisphere dropped 1° Celsius during the 1950s and 1960s. Kukla found that the average snow and ice cover in the Northern Hemisphere increased sharply in 1971 compared with the years between 1967 and '70. It reached a peak in '72 and '73 and then retreated about halfway back to what it had been in the late '60s. Now, says Kukla, satellite studies indicate that the snow and ice cover last fall increased again to about the level of '71. German Oceanographer Martin Rodewald has noticed...
...consequences could be catastrophic. A worldwide average temperature drop of only 1° Celsius could shorten growing seasons in the temperate zones enough to threaten global food supplies. Increased heating requirements would further strain energy resources such as coal, natural...
...just that, no matter how many grams the ingredients weigh. A miss will never be as good as a kilometer; no Texan is likely to wear a 38-liter hat. In some cases, neither form of measurement matters much. The day that hell freezes over, whether it happens in Celsius (0°) or Fahrenheit (32°), it will still rate a TIME cover...