Word: pathe
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Dates: during 1990-1999
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Until the space age, earthlings had no defense against such a threat. But now astronomers can determine years in advance if an asteroid will hit the earth. In theory, a nuclear missile could then be launched to rendezvous with the intruder, explode nearby and nudge it into a safe path. NASA, which spends under $1 million a year watching for collisions, will be a sponsor of the first International Conference on Near-Earth Asteroids next week in San Juan Capistrano, Calif., and is planning a seminar this year on asteroid avoidance. Still, the threat of a sneak attack remains...
...global conservation is that the most pristine areas remaining on earth are in remote, often anarchic regions where instability and lack of facilities keep the world at bay. In near bankrupt and chaotic Peru, bad roads and a State Department travel advisory warning about the insurgency of the Shining Path guerrillas cut the number of American visitors to the Manu in 1990 to 80, fewer than those who chose to visit Beirut. The area, however, is one of the few places in South America where the primordial Amazon is on display...
Even at Harvard, where such excellence on an international level can seem normal at times, Wylie skated an extremely unlikely path. While Harvard does enable hockey players and swimmers to cultivate Olympic-level talent through the channels of varsity competition, it affords no such opportunity to figure skaters...
Usually, busy diplomats travel from Amman to Jerusalem by air, but James Baker took the less traveled path last week and made the trip by road. With his two-hour drive, the Secretary of State wanted to underscore just how close the two adversaries are. But his stroll over the Allenby Bridge spanning the River Jordan, which marks the border, made the equally telling point that both sides are loath to come together. The two Jordanian officers who accompanied the Secretary midway across the bridge and the waiting Israeli escort spoke not a word to one another...
...this difference in travel time that sets up Gott's time machine. Imagine a rocket ship moving at 99.9999% of light speed and taking the shorter of the two paths. In principle it could reach the far side of a string at exactly the same moment as a light ray traveling the longer path. In essence the ship would be moving faster than light, and under the peculiar logic of special relativity, it would thus go backward in time. For complex reasons, the ship has to make a complete loop around the string, and thus a single string will...