https://www.invent.org/inductees/elmer-ambrose-sperry
NIHF Inductee Elmer Sperry Invented the Gyroscopic Compass
National Inventors Hall of Fame Inductee Elmer Sperry invented the gyroscopic compass for ships and airplanes that have been applied to spacecraft.
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https://www.newworldencyclopedia.org/entry/Elmer_Ambrose_Sperry
Elmer Ambrose Sperry - New World Encyclopedia
elmer ambrose sperrynew worldencyclopedia
https://aiaa.org/awards/elmer-a-sperry-award/
Elmer A. Sperry Award - AIAA - Shaping the future of aerospace | AIAA
Dec 12, 2024 - The Elmer Sperry Award recognizes distinguished engineering contributions that, through application proved in actual service, have advanced the art of...
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