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The TURNTABLE disk rotates like a giant compact disk. A supply of small metal
disks, rings, and balls, 7-10 cm in diameter, is scattered around
the stationary portion of the table top. Visitors try to keep the
rings on their edge spinning on the disk. They discover that a ring
spinning on edge may stay on the turntable for a while, orbiting
the center. A disk laid flat will move in a straight line as soon
as it slides off the turntable. Visitors, especially children, love
the challenge of getting the disks and rings to stand on edge while
moving around the turntable.
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