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Home Physics Gyroscopes & Tops   Top Secret
Top Secret
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Top Secret
TOP-375
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Give this top a spin and watch it move for hours without stopping.
Top Secret
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Give this top a spin and watch it move for hours without stopping. Secret Revealed: The top contains a small magnet. When this magnet moves past the center of its base, the top's spinning magnetic field induces a current in a coil, which closes a switch, allowing a battery to momentarily energize a small electromagnet. The top increases its rate of spin and moves away from the center of the base. Top: 2.5 cm (1.0 in), Base: 8.0 cm (3.1"), (Note: 9-volt battery not included)




Additional Products

Amazing Long-Spinning Top

Spins Up To Three Hours!
Euler's Disk

Give the disk a spin and observe the hypnotic display of light and continually changing sound.
Inverting Pop Tops

When these small wooden tops are spun, they start precessing until the heavier hemispherical end is lifted, seemingly against gravity.
Magic Bucket - Perpetual Motion Illusion

A water bucket is lowered and raised in and out of the well as the shaft turns, with no observable power source!
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