Word: underlying
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Dates: during 2000-2000
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In 1991 I found another possible mechanism for time travel using cosmic strings, thin strands of energy millions of light-years long, predicted by some theories of particle physics (but not yet observed in the universe). You could try to construct a cosmic-string time machine by finding a large...
Meanwhile, ironists and fatalists draw austere satisfaction from the fire-or-ice scenario, which reflects the quintessential human perception that nobody gets out of life alive. And that's just what makes me suspicious of it. The great lesson of scientific cosmology is that the universe does not usually conform...
By almost any standard, the best yardstick for measuring how steadily--if slowly--athletic performance has improved is the mile run. In 1900 the record for the mile was a comparatively sleepy 4 min. 12 sec. It wasn't until 1954 that Roger Bannister of Britain cracked the 4-min...
Shrubs, grasses and other vegetative covers act in much the same way, trapping water, feeding moisture into the atmosphere and providing shade that shields the surface of the land from the drying rays of the sun. Large-scale land-clearing efforts under way around the world wipe all that out...
Sometime in the next 30 years, according to the most recent forecast from the U.S. Geological Survey, a large portion of the San Francisco Bay Area will jump more than 3 ft. in less than 30 sec., shaking the ground for perhaps 100 miles and triggering an earthquake with a...