Word: ear
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Dates: during 1940-1949
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...Bats Fly. A doodad for ships sounding the ocean bottom is the echo-recorder, which shoots down supersonic waves (sound of higher pitch than the human ear can hear), gauges the depth by the time it takes the waves to bounce back to the surface. The same principle enables airplanes to keep a continuous record of their altitude. But, long before there were any ships, planes or men, bats invented the same system for blind flying. Able both to produce and to hear supersonic sounds, they utter a steady, staccato stream of supersonic squeaks, keep away from ob-tacles from...
...technique, Biologists Robert Galambos and Donald Griffin collected specimens from caves in the Berkshires, put them through their paces in rooms hung with wires like a balloon barrage, with special supersonic recorders. In finding out what prevents bat crackups, the scientists did not mutilate the creatures, used blindfolds, ear plugs, mouth gags. Last week Galambos & Griffin reported that the pitch of the bat signal is around 50,000 vibrations a second.* Flying in free space, the bats utter about 25 cries a second. Near an obstacle the rate shoots...
Meanwhile his brain has come to life. Everything in his experience feeds it; boardinghouse friends give it exercise. Into one ear an elderly doctor pours disenchanted liberalism; into the other an intense schoolteacher pours Communism...
...first time in 22 years, the Met revives The Daughter of the Regiment, whose bubbling tunes were written by Gaetano Donizetti a century ago. It revives it specifically as an ear-tickling, eye-tickling vehicle for Coloratura Pons, who is vocally and boxofficially about the best there...
...million in silver, gold, lead, zinc, copper, manganese. Today it is still a rowdy, frontier mining town. Queen of its night life is the Pastime's Blonde Bobbie, who relaxes at the piano between rounds, amazes customers with a repertoire ranging from blues to classics (all played by ear). On West Second Street flourishes a row of oldtime cribs, whose occupants have nothing to fear except monthly medical examinations...