Word: leet
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...Leet, professor of Geology, said it was an earthquake, "It's a realization of expectations we've had for quite a while," he said. "Boston had one 200 years ago. We look for a renascence of activity and possibly another major quake within 50 years...
...article describing Leet's hypothesis will appear in the latest issue of the Scientific American, out this week. It is Leet's thesis that the pattern of shock waves radiated by a nuclear blast are very different from those of earthquakes and other natural phenomena...
...underground blast sets up only compression or "P" waves, with very little of the shear and surface ("S") waves that normally accompany a natural underground disturbance. As a result, the seismographs detect only what Leet terms "the lonesome P." an energetic compression wave which lacks the shear and surface waves that usualy follow...
According to Leet, the lone P created "a unique and unmistakable criterion" of a nuclear detonation. He noted that the waves showed great penetrating power, and may be detected as for as halfway around the earth from the point of the explosion...
...Leet freely admitted the hypothetical nature of his proposal, but said that the lonesome P has been a "positive and definite phenomenon, present without exception" in each of the six cases he has studied. "I feel it is the duty of science to find out whether this is a real phenomenon, regardless of its political implications," he said...