Evidence of second fast north-south pole flip found
(PhysOrg.com) -- The Earth's magnetic poles flip around every 200,000 years or so, with north becoming south and vice versa. Normally, the process takes 4-5,000 years and it ought to be impossible for the flip to be much faster, if models of the Earth's core are correct, but now for the second time evidence has been found of a flip that appears to have taken only a few years.
Evidence of second fast north-south pole flip found
(PhysOrg.com) -- The Earth's magnetic poles flip around every 200,000 years or so, with north becoming south and vice versa. Normally, the process takes 4-5,000 years and it ought to be impossible ...
Mon 6 Sep 10 from PhysOrg
Did Earth's Magnetic Field Have a Fast Flip-Flop?
Had compass-toting Boy Scouts existed around fifteen million years ago, ...
Sat 4 Sep 10 from Discover Magazine
Earth’s Magnetic Field Flipped Superfast
Just north of a truck stop along Interstate 80 in Battle Mountain, Nevada, lies evidence that the Earth's magnetic field once went haywire. Magnetic minerals in 15-million-year-old rocks appear ...
Thu 2 Sep 10 from Wired Science
Geomagnetic field flip-flops in a flash
Scientists unearth more evidence of superfast changes in Earth's magnetic polarity
Thu 2 Sep 10 from ScienceNews
Geomagnetic Field Flip-Flops in a Flash, Fri 3 Sep 10 from U.S. News
Scientists study Earthly 'flip-flop'
LOS ANGELES, Sept. 2 (UPI) -- Scientists studying rocks in Nevada say they've found evidence that Earth's magnetic field can reverse or "flip-flop" more rapidly than previously believed. ...
Thu 2 Sep 10 from UPI
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