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Infinity candle

A gyroscope is a spinning device that can behave in very counterintuitive ways because of the rotational motion...

A gyroscope is a device, consisting of a wheel or disc spinning about an axis. In the classical gyroscopes, the spinning wheel is nested inside the rings called gimbals, which have nearly frictionless bearings. Just as every object with mass and velocity moving in a straight line possesses linear momentum, every rotating object possesses angular momentum, and the total momentum of the system must always be conserved. So, in the absence of external force, the rotation axis of the spinning wheel maintains its orientation, because the angular momentum of the spinning wheel must be conserved.

Gyroscopes that we can find in an online store are usually without gimbals. They have fixed rings around the rotating disk. Nevertheless, they can demonstrate amazing gyroscopic effects that sometimes seem counterintuitive.


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