Elmer Ambrose Sperry

Elmer Ambrose Sperry

Born: 1860
Birthplace: Cortland, N.Y.

Gyroscopic compass—The gyroscope was the basis of Sperry's inventions of an autopilot and an airplane turn indicator that allowed flying without visual reference to the ground. His ideas are used today to stabilize space vehicles. (1991)

Died: 1930

Samuel Smith

The National Inventors Hall of Fame

Rangaswamy Srinivasan

Samuel Smith The National Inventors Hall of Fame Rangaswamy Srinivasan

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James Wynne

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Elmer Ambrose Sperry

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