Science: Happy Ending

Louis H. Crook, professor of aeronautical engineering at Washington's Catholic University, is a pint-sized (5 ft.) man of 61 with twinkling eyes and white hair. Last week, Professor Crook was a happy man: he had just won one of the biggest patent suits in U.S. history.

In 1926, Louis Crook got to thinking about a contemporary problem. Airplane radios of the day were bothered by high-tension interference from the engine's spark plugs, each of which acted like a miniature radio transmitter. Various attempts had been made to shush the plugs, but none had succeeded well. The professor focused his mind on...

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