How gyroscope becomes a gyrocompass?

Related questions

1. Do phones have gyroscopes?
2. What can magnetometers detect?
3. Do all smartphones have gyroscopes?
4. How does a gyroscope keep spinning?
5. How can I test my phone sensor?
6. Does iPhone have a magnetometer?
7. What is a gyroscopic effect?
8. Can I add gyroscope to my phone?
9. What is the difference between an accelerometer and a gyroscope?
10. What is a gyroscope and how is it used as a navigational aid?

Tags

1. #earth
2. #gyroscope
3. #influenced
4. #rotation
5. #mounted
6. #parallel
7. #about
8. #meridian
9. #settled
10. #freely
11. #perpendicular
12. #three
13. #gyrocompass
14. #mutually
15. #controlled
16. #enable
17. #gravity