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Physics
Mechanics
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(See 1988 for photo.) Accessory for no. 1988. Illustrates flattening of the earth at the poles. Two phosphor-bronze hoops that are secured to an axis rod at the bottom are free to slip at the top along the rod. When the rod is rotated rapidly, the hoops flatten by centrifugal force.
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Product number: |
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1996
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Unit of measure: |
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Each
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