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Old 11-14-2012, 04:00 AM   #44
PeteD
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Join Date: Jan 2005
Location: The Commonwealth (of PA)
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Quote:
Originally Posted by mib View Post
I was just pointing out that while nearly everyone knows that the seasons are switched between the hemispheres, the actual physical explanation of that is not that trivial.

For instance, why does the axis of the rotation not change with respect to the orbital plane? I think this is a result of some gyroscopic effect, but I am not sure.
What on earth would change it?
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