Elmer Ambrose SperryBorn: 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
Fact Monster/Information Please® Database, © 2007 Pearson Education, Inc. All rights reserved.
More on Elmer Ambrose Sperry from Fact Monster: