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On 21/08/03, Art Shifrin wrote:

> Revolution occurs around a point outside of its geometry. Rotation
> occurs around a point within its geometry. i.e. planets (at least in
> our solar system!) revolve around the sun but each rotates around its
> won axis.

I can see the distinction you are trying to make, but it's new to me.
And I did study physics at college.

Regards
--
Don Cox
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