Word: keys
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Dates: during 1920-1929
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...Electric Cell and its Uses in Communication", illustrated by talking motion pictures. Dr. Mills is a writer on scientific subjects who is already well known through his popular books, such as "Within the Atom" and "A Radio Engineer's Letters to His Son." The photo electric cell is the key to much of the recent development in television and talking motion pictures
...Robot moves with human-like movements, talks distinctly and is built in the semblance of a six-foot man. The most remarkable thing about this automaton, is his ability to answer any question within reason. Captain Richards explained that each question had a key number, such as 74, the sound waves of the seven and four combined making a certain rate of vibration on a wire inside the man, which vibrations cause him to give the correct answer...
...yellow, the cool green signal lights. The song of the freight is the moan and the broken cry of a woman dying in a train wreck, The clear sharp challenge hurled at the moon by a lonely defiant farm-dog, A nocturne in an unknown key torn by the wind from the throat of a steam whistle in a nightmare, . . . An all-metal Walt Whitman...
...submarine 54, once a coffin for 40 seamen off Provincetown, Mass., now a rescue laboratory stripped of fighting gear, gurgled purposefully down into seven fathoms of blue Gulf Stream water off Key West last week, carrying a trapped crew of 15 volunteers. The U. S. S. Mallard (tender) stood by. After 15 minutes a black buoy bobbed up among the waves. Three anxious minutes crawled by. Then the head of Chief Torpedoman Edward Kalinowski plopped out on the surface. A minute later Lieut. Charles B. Momsen emerged. They were the first two U. S. submariners ever to escape directly from...
...test worked successfully again at a depth of 76 feet. When the S-4 attempted to descend to 20 fathoms (120 feet, slightly deeper than the S-4 lay off Provincetown) her periscope sprung a leak and she had to rise, be towed back to Key West for repairs...