Word: sonare
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...tons) submarine, designed and built with one mission: to hunt and destroy other submarines. Only a little more than half as big as the Navy's fleet-type sub, the K-i's job is to lie in ambush along enemy submarine lanes, spot its prey with sonar gear, then nail the enemy with homing torpedoes equipped with electronic ears. It is one answer to the threat of Russia's big and still growing underwater fleet. Said Rear Admiral C. B. Momsen, veteran submariner: "I can say from my own experience that there is no foe that...
Small rooms give Mory's an intimsey that Cronin's misses. The big difference is the steady signing from every table, a recreation banned by law in Boston. Yale is the singingest college in the East, and Mory's gathers music waves like a sonar machine. If a person isn't singing, he's hushing his friends to hasp someone else sing...
...second day out, an Australian destroyer escort recorded a loud "ping" on its sonar, confirmed what Admiral Doyle had suspected: Russian submarines were keeping close tabs on U.S. naval movements. But this sub apparently was interested only in observation. Said an Australian destroyer officer later: "We held her for three minutes, but she cut through the convoy and we lost contact...
Repeating Dr. Donald Griffin's experiment [for his sonar navigation experiments, he used bats which had been made to hibernate in a humidified refrigerator-TIME, May 1], I removed a bat from my belfry, chucked him in my refrigerator, rigged my oscillograph, and turned him loose...
Even though human ears cannot hear them, the pulses of a bat's sonar are surprisingly loud. When Dr. Griffin held his microphone three or four inches from the mouth of a pulsing bat, it registered a "sound pressure" of about 60 dynes per square centimeter (the sound pressure in a boiler shop: about 25 dynes). If human ears were tuned to bat frequencies, says Dr. Griffin rather proudly, a bat flying near to one's head would sound as loud as a fighter airplane...