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Posts: 154
In response to
"
" It's fairly common knowledge that the Earth's magnetic field periodically reverses its polarity." -- (link)
"
by
mara
"over a period of hundreds of thousands of years" It's not going to just happen and wreak havoc. -- nm
Posted by
ceregon
Mar 14 '12, 12:44
(No message)
Responses:
actually, i don't think that's quite what that quote means, everywhere else says "Most reversals are estimated to take between 1,000 and 10,000 years" -- nm
-
Andie
Mar 14, 12:50
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