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Politics : The Environmentalist Thread

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To: average joe who wrote (6216)4/7/2006 3:44:49 PM
From: maceng2  Read Replies (2) of 36917
 
The sun reverses it's polarity ever 22 years.

The earth magnetic field is a most complicated phenomena to understand. Several experiments have been conducted using liquid metal spheres.

mahi.ucsd.edu
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