What about the Gyro Wheel?
It has evolved....
Jean Bernard Leon Foucault invented the first gyroscope. From that
invention came a magnetic gyro wheel toy. These toys
are also called rail twirlers often sold under the brand name "Whee-Lo" or "Gyro Wheel."
These toys combine the ever-spinning property of a gyroscope with the
magnetic force applied by magnets. The magnetic gyro wheel toy is a
great teaching tool as well as being fun to use. It can demonstrate physics lessons
about centripetal force, magnetic force, friction and gravity. Or it can just mesmerize the user !
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