Re: ASTRO: Sol-like system

From: Mike Lorrey (mlorrey@yahoo.com)
Date: Wed Jul 16 2003 - 16:51:49 MDT

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    --- Amara Graps <amara@amara.com> wrote:
    >
    > Instead of deflecting Near Earth Objects gravitationally, as you
    > hypothesize, the Moon's effect on the Earth is something different.
    > Spudis points out that without the Moon's stabilizing effect on the
    > Earth's rotational axis, life on Earth would experience extreme
    > climate changes and also wouldn't have evolution-catalyzing tides in
    > the oceans.

    Also the fact that the moon's gravity/tide affects the different layers
    of the earth with different degrees of torque, such that the mantle
    turns one less revolution per year than the core. This differential
    does produce the gyroscopic stabilization you speak of, but it also
    generates the powerful magnetic field that protects the earth from
    harmful levels of cosmic and solar radiation.

    =====
    Mike Lorrey
    "Live Free or Die, Death is not the Worst of Evils."
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