Word: geophysicists
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Dates: during 1960-1969
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...Chairman prescient? Could he have anticipated by more than four decades an ingenious scheme just conceived by University of Alaska Geophysicist David Stone? If Mao had carried his maxim a little farther, says Stone in a tongue-in-cheek letter to Geotimes, China could have threatened distant enemies with mass destruction years before the development of nuclear warheads and long-range missiles...
Although these bell-like reverberations were unlike any seismic event on earth, Columbia University Geophysicist Gary Latham offered a plausible explanation. The effect may have been caused, he said, by a layer of rubble or fractured rock sandwiched between bedrock in the floor of the Ocean of Storms and a solid cover of fine material deposits above. Lacking dampening fluids or gases, the layer of rubble may have acted as an echo chamber in which the seismic waves reverberated. If so, the next big seismic event on the moon should be a scientific spectacular; the third-stage rocket of Apollo...
...belfry of a church and it kept reverberating for 30 minutes," explained Maurice W. Ewing, director of Columbia University's Lamont-Doherty Geological Observatory. Later scientists said that reverberations had lasted as long as 55 minutes. "We've never seen anything like it on earth," said M.I.T. Geophysicist Frank Press. "We're not sure what it means, but probably it will represent a major discovery completely unanticipated about the moon." It could mean, for example, that the structure of the moon's interior is highly unstable and that Intrepid's impact set off a continuing...
...first, the seismometer left behind at Tranquillity Base radioed back several signals that were interpreted in some quarters as distinct moonquakes, a hint that the moon-like the earth -was stratified and geologically alive. Now, says Geophysicist Gary Latham of Columbia University, investigators think that the patterns may have been caused spuriously by the seismometer itself. Yet, even while it seemed to be working well, says Latham, the seismometer detected only infrequent, relatively small lunar rumbles. He accounts for that odd seismic behavior by speculating that the moon contains a large amount of cold, fragmented material that would diffuse...
Long before the rocks arrived, scientists started to debate the scientific results of the lunar voyage. M.I.T. Geophysicist Frank Press wagered a case of champagne on his conviction that the moon actually has quakes. Certain that the moon specimens will show some evidence that there was once water on the moon, Dr. Persa Bell, director of NASA's Lunar Receiving Lab, bet a skeptical colleague a bottle of Scotch...