Magic Gyroscope Spinning Top
The Magic Gyroscope spinning top with a radially oriented magnetic field and an associated base that houses a conductive coil. When the top spins past the center of the base, its changing magnetic field induces a current in the coil which momentarily opens the switch to the battery resulting in powering up the electromagnet. The electromagnet then delivers enough torque to the spinning top to allow it to speed up and spin away from the center.Since the electromagnet is only engaged when the top crosses near the center of the base, one 9 volt battery can last for over a week of continual use!.
1. Doesn't stop spinning.
2. Size (approx): Size: Height of spin top-2.2cm
Diameter of spinning top-1.9cm
Diameter of black plate-8.8cm ;
3. 9V Battery Not Included!
Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. It will be very close though.