Elmer Ambrose Sperry, an engineer and inventor, who founded the Sperry Gyroscope Company in 1910.
Elmer Sperry
Sperry
It is powered by electricity, so a cut off of this energy will stop your compass. That is why vessels nowadays vessels are equipped with UPS(uninterruptable power supply) which gives you extra power for use in hours to use the compass.
Raold Amundson did not die in 1911, nor did Robert Falcon Scott.
The south pole. They actually set out on 1st November 1911.
Elmer Sperry
John Browning invented the 1911 in 1910, and it was adopted by the U.S. Military in 1911.
Sperry
well the answer is in the name 1911
the model was invented in the year 1911
the year it was named after 1911
Sperry
It wass invented in 1911
1911
Gyrocompass is a mechanical device that determines direction. It is used in navigating all major commercial and naval ships, and some aircraft and land vehicles. A gyrocompass is more accurate than a magnetic compass, which relies on the earth's magnetic field to indicate magnetic north. A gyrocompass points to true north, or geographic north. It is not affected by magnetic forces or by the rolling and pitching of the vehicle. (http://reference.howstuffworks.com/gyrocompass-encyclopedia.html) Here is a picture: http://www.navis.gr/navaids/images/gyro2.jpg
Gyrocompass.
1911