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Re: Conservation of Angular Momentum

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  • Re: Conservation of Angular Momentum

    At 05:39 PM 4/18/97 -0500, you wrote:
    >To Donald Sussman and Biomch-L:

    Thanks, Jesus for a good explanation.

    > Let's say that in the initial conditions the person and turntable
    >are still and the wheel is rotating counterclockwise (in a view from
    >overhead).

    Another method of demonstration:
    Start with the wheel's axle in the horizontal axis. The view from above
    sees the edge of the rotating wheel.

    The person in the chair is not free to spin in the "head over heels" axis,
    unless his "chair" is built like a gyroscope. He feels a tug on the wheel
    when the spin is applied, and it is harder to hold in place. The momentum
    is being applied (rotating head forward or head backward, depending upon the
    direction the wheel was spun), but the inability for the person to rotate
    about the left/right axis masks the pull which he is experiencing.

    Tilting the wheel in opposite directions will still cause the vertical axis
    of the chair to rotate in opposite directions.

    Tom Persing
    lab@airmail.net

    FACTS Investigative Laboratories
    3330 Matlock Road, Suite #200
    Arlington, Texas 76015

    800.913.1993
    817.996.4300
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