Word: sonics
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
...scarcity of whales was not the only disappointment. The whalers had been equipped with Asdic (sonic submarine detectors) and radar. But these modern gadgets did not work well...
...fish make noises under water? Well, said the Navy, that's interesting: perhaps some are noisier than others. To find out, the Navy made a "sonic survey" of underwater noisemakers. Some findings...
...sonic effect, he adds, is "due to a fluttering action produced by currents of air acting ... in a manner similar to the action of wind on a flag. . . . The snore tone is constant and depends on the length, density and flexibility of the moving parts.... Each soft palate and uvula must have its own individual 'flutter ratio...
...boats' armament included new torpedoes, evidently derived from magnetic and sonic mines with which the British long since learned how to cope. Attracted toward a ship's stern by the metal mass, the torpedoes exploded automatically when they came within the radius of the propeller vibrations. Once the propellers were crippled or destroyed, the ship was then an easy mark for conventional torpedoes...
...Propellers, not engines, will provide the bottleneck in the horsepower race. While military motors may conceivably double in horsepower, a propeller reaching sonic speed (750 m.p.h.) is shackled by a destructive drag. Many predict that jet propulsion (as in "rocket ships") will be required for airplane performance over 500 m.p.h...