Word: sirenes
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...APPREHENSIVE DOG-H. C. Bailey-Crime Club ($2). Mr. Reginald Fortune luxuriates at a museum-piece English inn while probing the violent death of a long-absent village siren, whose return to childhood scenes precipitates murder, suicide and confusion among the gentry. Intelligent, well-characterized and done with customary Bailey finesse...
...projects of the National Defense Research Council, the siren problem was brought to Harvard by Dr. Harvey Fletcher, director of physical research at the Bell Laboratories under the arrangement whereby Harvard facilities are opened to research of this nature...
Mounted on the back of a truck, a new siren, developed by several Harvard professors in collaboration with the Bell Laboratories, was given a 20 minute test from New York's Manhattan Bridge, and officials pronounced it "one of the nation's leading sirens...
This Rube-Goldbergian contraption is a product of the National Defense Research Committee, which includes the best scientific brains in the country. Powered by a 95-h.p. engine, the siren shoots a blast of air through spinning blades, creating sufficient racket to alarm a good-sized town. Tried in Manhattan, it whined over the downtown district, was reflected back over Brooklyn from Manhattan's tall buildings...
...have been making horns the wrong way," said Professor Frederick K. Kirsten of the University of Washington. Without actually saying that his horn was better than Joshua's, he announced that he had invented a horn to outshout all horns. Called a parabolic reflector type of air-raid siren, Professor Kirsten's horn has a ten-foot wooden cup which focuses the siren's shriek into a single noise beam, instead of throwing it to the four winds, and the reflector rotates the beam, like the beam of a lighthouse. With a small two-h.p. siren...