The Spinning Magnet
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The magnetic North Pole will eventually trade places with the South Pole. Satellite evidence suggests to some scientists that the move has already begun, but most still think it won't happen for many decades. All agree that it has happened many times before and will happen again. But this time it will be different. It will be a very bad day for modern civilization.
Award-winning science journalist Alanna Mitchell tells in The Spinning Magnet the fascinating history of one of the four fundamental physical forces in the universe, electromagnetism.
But the recent finding that the Earth's magnetic force field is decaying 10 times faster than previously thought, portending an imminent pole reversal, ultimately gives this story a spinetingling urgency. When the poles switch, a process that takes many years, the Earth is unprotected from solar radiation storms that would, among other things, wipe out all electromagnetic technology. No satellites, no Internet, no smart phones — maybe no power grid at all. (From Penguin Canada)