Gyroscope

1. an instrument or device consisting of a spinning wheel, mounted on a base so that its axis can turn freely in any direction thereby maintaining its orientation without regard to any movement of the base






Ex1: Gyroscopes have several applications one of which is in the auto-pilot navigation system of an aeroplane.


Ex2: Besides swapping out the old camera and science data unit, they will replace Hubble's batteries, gyroscopes and a pointing mechanism.