A gyroscope is a mechanical tool that can figure out the speed and direction of anything that it’s attached to, and you can find gyroscope technology in compasses, airplanes, video games, and cell phones.

A gyroscope is a circular disk with a pole through the middle, surrounded by three rings that can each rotate whatever direction they please. No matter how you spin the rings, the disc stays flat. In the 1850s, a French physicist used a gyroscope to explain how the Earth rotates on its axis. For his clever experiment, he got to name the gyroscope, choosing a combination of Greek words that literally translates to “circle watcher.”

Definitions of gyroscope
  1. noun
    rotating mechanism in the form of a universally mounted spinning wheel that offers resistance to turns in any direction
    synonyms: gyro
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    type of:
    rotating mechanism
    a mechanism that rotates
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