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    Rotation
    By John Vose

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    We are glued to the surface of the earth by gravity. The surface of the earth at the equator is travelling at over 1000 miles per hour so we are also travelling at that speed, but the earth only rotates once every 24 hours so we don't feel dizzy. The only force we feel anyway is the big centripedal force of gravity. Any other forces acting on us are small in comparison and negated by that one force.

    John



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