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News: Remains of ancient civilisation discovered on the bottom of a lake
http://en.rian.ru/analysis/20071227/94372640.html
 
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The planet's wandering magnetic poles

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Author Topic: The planet's wandering magnetic poles  (Read 222 times)
Daedalus
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« on: December 27, 2007, 08:19:46 pm »


HALF-BAKED DATA. The strength and direction of the magnetic field trapped in minerals forged by fire in ancient hearths (reddish materials at arrows) can help archaeologists estimate the date when those fires last burned.
Oxford Archaeology Ltd.
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