The spin axis of a gyroscope tends to remain fixed in space in the direction in which it is started. How does this gyroscope become north seeking so that it can be used as a compass? |
A) By starting the compass with the spin axis in a north/south position |
B) The rotation of the Earth (Earth rate) automatically aligns the gyroscope with north, except for speed errors |
C) By mechanically or electrically applying forces to precess the gyroscope |
D) By taking advantage of the property of gyroscopic inertia |