Word: sonar
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...World Council for the Welfare of the Blind in Paris, Sweden's Charles Hedkvist sadly reported that postwar dreams of developing a sonar system to help the blind find their way are years short of fulfillment. Guide dogs are too costly for most of the world's blind, so the most widely useful device is still the oldest and simplest-the cane...
Fishermen's Friend. A sonar apparatus for locating schools of fish was put on sale by Minneapolis-Honeywell Regulator Co. Other commercial fish-finding devices work only when the boat is directly above the school; Sea Scanar sends out sound impulses in a 180° arc, has located fish as far off as a quarter of a mile. Price (uninstalled...
...that was no leak, it was a fire hose"). The inside dope from the Parks office, as splashed out in the Pentagon pressroom: the atomic submarine Nautilus is really unsuited for combat; it is too big, too expensive, too noisy; its torpedo tubes were added as an afterthought; its sonar equipment will not work at high speed; it has no safety features. All the criticisms were either false or distorted, and some of them were ridiculous as well...
...submarine survives, there is a desperate, quiet cat & mouse game of search and evasion. If the submarine tries to escape at full speed, it will soon exhaust its battery. If it tries to save its battery by drifting slowly through the depths, the destroyers above may find it by sonar. Usually it compromises, moving at moderate speed as it twists and turns...
...have been Communists. But "what justice is done to the really typical member of the Harvard faculty, to the 2,900 or more others who are our true representatives-including the men who invented the iron lung, those on whose researches in atomic energy ... in radar and sonar ... the late military effort so largely depended; Dr. Cohn and his fractionation of blood and all the lives saved because of his researches ... or Harvard's six Nobel Prizewinners; and most important perhaps of all, the humanists whose efforts [bring] us into fresh awareness of new reaches of the human spirit...