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At first, we were fascinated by this electronic top’s counter rotating motion. The top half seems to float above the lower half, and each half rotates separately in opposite directions. We had to know how it works! Play with the top, and you’ll learn that it is, in fact, a gyroscope. It can balance on its edge. It demonstrates precession when hung from a string. Hold it in your hand, and it resists changes in direction. Take the halves apart and see the exposed motor. How does it work? We don’t want to ruin the mystery! Battery included.