Twitter / newscientist: Is #Earth's #magnetic fiel

http://twitter.com/newscientist/status/223797005154131968

@newscientist: Is #Earth's #magnetic field about to flip? Lopsided growth of Earth's core hints at reversal ahead http://t.co/n3Fu74Qe

Saved on Jul 13, 2012

#imported:pinboard #needs-tags #twitter

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