Word: sound
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Dates: during 1950-1959
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...coffee bonanza were not invested in the modern communication system and farm machinery the country needs to make it agriculturally self-sufficient; instead, Rojas had spent uncounted millions on military equipment--heavy weapons, jet planes, beer, and television sets for the soldiers on whose support he depended. His few sound investments were mostly expensive industrial installations, which the country's capital-short economy could ill afford. Moreover political interference with the operation of government-owned projects further hindered the country's industrial development. Belated attempts to limit imports of "luxuries" failed to stem the tide of rising debt and ebbing...
...experienced test pilot and familiar with jet aircraft, but he had never handled the X-2 or any other rocket plane. Air experts have wondered why he was not permitted to take it easy the first time and fly the X-2 slowly (maybe twice the speed of sound) until he got the feel...
...Nothing whatever went wrong. The rocket engine burned perfectly, and the fuel lasted nine seconds longer than it had ever lasted before. The speed climbed past the X-2's previous record (1,900 m.p.h.) reached a new record: 2,200 m.p.h., 3.3 times the speed of sound...
...sorts of gadgets have been developed to help the blind to "see" by sound or touch, but none has come into widespread use. They are generally too complicated, heavy, expensive or conspicuous. Dunn Engineering Associates, Inc. of Cambridge, Mass, is demonstrating a small, simple, inconspicuous device that may have more practical appeal. Its designer, the late Dr. Clifford Martin Witcher of M.I.T., was blind himself...
When a blind person wants to find, for instance, the windows of a room, he swings his probe around and listens for a faint ticking sound in his earphone. The faster the ticking the stronger the light that is reaching the photocell...