Elmer Ambrose Sperry was born on October 12, 1860.
Gyrocompass.
Sidney B. Sperry died in 1977.
Eddie Sperry died on September 9, 2006, in Thailand.
John Ambrose died in 1771.
Elmer Ambrose Sperry was born on October 12, 1860.
Elmer Ambrose Sperry was born on October 12, 1860.
Elmer Ambrose Sperry died on June 16, 1930 at the age of 69.
Elmer Ambrose Sperry was the inventor of the gyro compass and gyroscope.
Elmer Sperry is credited with inventing the gyrocompass in 1911. The gyrocompass uses the Earth's rotation to establish true north and does not rely on magnetic fields like traditional compasses.
Gyrocompass.
Most notably, the gyro compass.
Sperry Cline died in 1964.
Sperry Rademaker died in 2005.
Pauline Sperry died in 1967.
Thomas Sperry died in 1913.
John Sperry died on 2012-02-11.