On May 31, 2007, at 1:33 PM, MB Software Solutions General Account  
wrote:

> Huh?  How does that happen?  Must the always be equal and opposite of
> each other?

        This has been observed in rocks from various parts of the world in  
which magnetic crystals abruptly reverse direction. Normally they  
align with the Earth's magnetic field, so the only explanation that  
would take into account this on a global basis is that the polarity  
of the magnetic field flipped.

        Given the fact that magnetic field is due to the Earth's largely  
iron core, and that due to the high heat in the center of the Earth  
things are more or less liquid in nature, it is not implausible that  
this would happen.

-- Ed Leafe
-- http://leafe.com
-- http://dabodev.com




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