+A [Flywheel](/wiki/flywheel) is a heavy, rotating mechanical device designed to store [Kinetic Energy](/wiki/kinetic-energy). It resists changes in rotational speed, smoothing the flow of power in [Machines](/wiki/machine) and systems.
+## See also
+- [Energy Storage](/wiki/energy-storage)
+- [Moment of Inertia](/wiki/moment-of-inertia)
+- [Engine](/wiki/engine)
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