Noun
A rotating wheel, mounted in a ring or rings, for illustrating the dynamics of rotating bodies, the composition of rotations, etc. It was devised by Professor W. R. Johnson, in 1832, by whom it was called the rotascope.
A form of the above apparatus, invented by M. Foucault, mounted so delicately as to render visible the rotation of the earth, through the tendency of the rotating wheel to preserve a constant plane of rotation, independently of the earth's motion.
Source: Webster's dictionaryNon-action is unceasing activity. The sage is characterized by eternal and intense activity. His stillness is like the apparent stillness of a fast rotating gyroscope. Ramana Maharshi
A control moment gyroscope (CMG) is an example of a fixed-output-gimbal device that is used on spacecraft to hold or maintain a desired attitude angle or pointing direction using the gyroscopic resistance force. Source: Internet
A contributing factor was the pilot's unfamiliarity with the old-style attitude gyroscope fitted on board the aircraft, which may have caused him to believe he was climbing when he was, in fact, descending (an example of spatial disorientation ). Source: Internet
A gyroscope flywheel will roll or resist about the output axis depending upon whether the output gimbals are of a free- or fixed- configuration. Source: Internet
A gyroscope (from Greek γῦρος gûros, "circle" and σκοπέω skopéō, "to look") is a spinning wheel or disc in which the axis of rotation is free to assume any orientation by itself. Source: Internet
An electric powered flywheel gyroscope inserted in a bicycle wheel is being sold as a training wheel alternative. Source: Internet