Word: screech
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Dates: during 1930-1939
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...street car, they might be able to cause other sound-waves to neutralize the din. Last week Dr. J. P. Foltz, engineer, invited scientists to the Westinghouse Research Laboratories, East Pittsburgh, Pa. to show them a small contraption which could analyze the street car's rattle-bang-clank-screech. The machine consists of a microphone, an amplifier, a filter circuit which allows only one wavelength at a time to pass to the meter for measuring. Since the machine weighs only 60 lb., is independent of outside current, it can easily be transported from one noisy place to another...
...usual "March Blizzard" tucked south-east England under a twelve-inch snow blanket last week, stopped air services to the Continent, forced the Admiralty to keep coastal guns firing at Dover, because above the screech of the gale ordinary fog signals could not be heard...