Word: sonar
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Dates: during 1960-1969
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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...
...using secret, supersophisticated devices to seek out an enemy sub. If it finds nothing, the Mark-46 switches to "active echo ranging," breaks its circular pattern and snakes zigzag through the water like a hunter stalking a deer. Once the enemy is located, the torpedo homes in with its sonar...
Studying the depths of the sea by sonar, dredging, and instruments lowered from ships, oceanologists have so far gained about as accurate an idea of what lies below as man had about the continents back in 1750. The obvious need has been for more precise exploration of the deep. And the obvious lack, until now, has been ways and means to plunge to great depths, remain there for days or weeks at a time and explore such mysteries as the exact topography and geological composition of the ocean floor...
...Scram" & Sonar. The Atomic Energy Commission's Atomsville is the highlight of New York's still-aborning museum. Parents are not allowed inside Atomsville, but through television they can watch children simulate bending a beam of electrons, handle "radio active" material with mechanical hands, and run a mock reactor that will shut off when it reaches the "scram" level -just as it does at Oak Ridge...
...Baldwin locomotive that moves up and down a track. Boston's "science smorgasbord," as Director Henry Bradford Washburn calls it, includes a bucket pendulum that dribbles sand in harmonic patterns, a working cloud chamber, and a reproduction of a ship's bridge equipped with radar, sonar, gyroscopes, steering mechanism and a view of the Charles River...