Word: sonics
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Dates: during 1960-1969
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...Pratt & Whitney). The airframe makers have discovered that a relatively small reduction in airframe weight produces a disproportionately larger increase in payload; a 1% reduction, for example, would increase the payload by 10%. National Aeronautics and Space Administration research has given increased hope for solving the problems of sonic boom. And estimates of the world market for the SST have been raised from 200 planes...
Bats hunt night-flying moths by echolocation, uttering rapid chirps of ultra sonic sound and flying toward echoes that bounce back from their prey. It is a simple and effective system, but Dr. Roeder proved several years ago that noctuid moths can hear the search sonar of a cruising bat and take evasive action. To save their lives, they fold their wings and dive to the ground or shift suddenly into a zigzag course (TIME, June...
...with Dr. Dunning's help, Roeder has discovered much more advanced moths that send out their own sonic signals; they can make clicking sounds that are not very different from the search-sonar pulses of bats...
...sounded like artillery fire rolling in over the rocky desert floor, but the sonic booms generated by the F-104 Starfighters did nothing more than rattle the windows of the 18 buildings spread out over five acres at White Sands Missile Range, N. Mex. The first pass by a Starfighter produced a shock of 4 Ibs. per square foot of overpressure.* Another boom was boosted to 6 Ibs. per square foot, and subsequent booms raised the overpressure to as high as 10 Ibs. per square foot. But nothing broke. Officials of the Federal Aviation Agency began to break...
...their manufactured desert town through 15 sonic booms over a three-hour stretch. So well did the buildings bear the booms that a disappointed CBS camera crew left before the show was over. Then, for that inevitable one last picture, a Starfighter was ordered to make a low-level pass at subsonic speeds. But the pilot miscalculated, the speed indicator climbed, and the results were spectacularly embarrassing. Just as FAA Deputy Administrator Gordon Bain was answering a reporter's question about the psychological reaction to sonic booms, a walloping blast shook the walls, Bain and the newsmen...