MECHANICS - MOTION IN TWO DIMENSIONS - DEFORMATION BY CENTRAL FORCES	Order
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Description: Two metal strips are bent into a circle and mounted on a pole to form a sphere. The tops of the circles are not mounted, but the pole sticks through a hole in each of them. When the pole is attached to a motor and spun up, the sphere flattens out. Instructions: Power up the spinner, and vary the voltage to vary the speed. Hazards: Keep hair, ties (or other such tanglables) our of the reach of the apparatus. Also keep finger away while spinning! Parts: Cenco Rotator Flattening Earth apparatus Purchased/Built: purchased Setup Time: 10 min Quant. in Demo Room: 1 Demo References The Video Encyclopedia of Physics Demonstrations Disc 05-22 A flexible hoop becomes oblate as it is rotated. Freier and Anderson Mm-4b Flexible hoops flatten when spun on a hand crank rotator.
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