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Dec 4, 2009

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Elmer Ambrose Sperry

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)

Information Please® Database, © 2007 Pearson Education, Inc. All rights reserved.

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