Yep. Plus the moon is dead, geologically. Cold hard stone all the way
through. The earth, on the other hand, is active and jiggly, kind of like a
water balloon. We all hang out on the flexible skin. You spin a water
balloon, and the middle expands--same thing happens to the Earth.

Dan Scott
[EMAIL PROTECTED]


John Francis:
>"Paris, Leonard" wrote:
>>
>> Yes, refraction will do that. But, here's a question for you.  Do we know
>> that the moon is perfectly spherical to begin with?  I know that the earth
>> is not.
>>
>> Len
>
>It would be pretty hard to detect the non-spherical nature of the earth
>visually - the difference in polar and equatorial radii is only about
>one part in three hundred.
>
>While the moon is, no doubt, not perfecty spherical, the same reference
>works that describe the earth as an ellipsoid do call the moon spherical.
>As it has a much lower rotational frequency there are less forces working
>to distort the moon from a spherical shape.  It has much greater rigidity
>than the earth, as well.
>
>
>--
>John Francis  [EMAIL PROTECTED]       Silicon Graphics, Inc.


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