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Who developed a gyrocompass in England in 1916?
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gyrocompass
The gyrocompass aboard the National Oceanic and Atmospheric Administration's (NOAA) ship Rainier. Gyrocompasses are navigational instruments that use a continuously driven gyroscope to accurately seek the direction of true (geographic) north.
In 1916, the gyrocompass was developed in England by Sidney George Brown, who worked in collaboration with John Perry.1