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Magnetic Upheaval

By John S Pritchett
Large Print (Paperback)
$14.99
By John S Pritchett
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Earth is protected by an invisible shield-one generated deep beneath our feet and extending far into space. It deflects solar wind, limits harmful radiation, helps preserve the atmosphere, and creates the conditions that allow life to flourish. But that shield is neither fixed nor permanent.

Magnetic Upheaval: The Hidden Science Behind Earth's Magnetic Field explores the powerful forces that generate Earth's magnetism and the changes now taking place within it. The North Magnetic Pole is mov...