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The science shows that magnetic pole reversal is – in terms of geologic time scales – a common occurrence that happens gradually over millennia. While the conditions that cause polarity reversals are not entirely predictable – the north pole's movement could subtly change direction, for instance – there is nothing in the millions of years of geologic record to suggest that any of the 2012 doomsday scenarios connected to a pole reversal should be taken seriously. A reversal might, however, be good business for magnetic compass manufacturers.
originally posted by: Blaine91555
Since the Earth has been through hundreds if not thousands of polar shifts and the evidence says each shift takes thousands of years, what's his point exactly?
Since it's unlikely to impact my life as it happens over thousands of years, if it does happen I'll just relabel my compasses. Interesting but hardly doom porn material.
What if 2023 is the last year in the current period? What happens then?
originally posted by: Blaine91555
The same thing that happened in prior years. A sloooooooooooow change.
originally posted by: cappie
then what about those wooley mammoths, seemingly instantly frozen, with grass still in their mouths flash frozen
The Frozen Mammoths
Claims that the mammoths were quick-frozen have been propounded for decades and were disputed by Zimmerman and Tedford as long ago as the mid-1970s (1976, 183): "Histologic examination of rehydrated tissue samples from late Pleistocene Alaskan mammal mummies demon-
strates that the preservative effect of freezing and drying extends to remains 15,000 to 25,000 years old. Some mus- cle and liver retained identifiable histo- logic structures. Most tissues were com-
pletely disintegrated and partly replaced
by masses of bacteria, an indication of considerable post-mortem decay before the remains were entombed beneath the permafrost zone."
These points were taken up and elaborated
upon further by Kurten (1986, 51-2): "Various
legends exist about frozen mammoths. It has been
said, for instance, that the scientists who excavated the Beresovka mammoth, discovered in the year 1900, enjoyed a banquet on mammoth steak. What really appears to
have happened (as I was told by Professor
that one of them made a heroic attempt to
take a bite out of the 40,000 year old meat
but was unable to keep it down, in spite of
a generous use of spices... The facts are not
hard to find. In 1902, Otto Herz, a zoolo-
gist at the Imperial Academy of Sciences in
St. Pietersburg published in German an
account of the expedition to the Beresovka
River which he had led the year before,
with the purpose of salvaging the mam-
moth carcass diat had been discovered in
1900. . . . The point here is this: Herz definitely states that it was only the superficial part of the cadaver that had been pre- served. The internal organs had rotted away before the animal had become frozen."