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Earth’s magnetic North Pole is heading to Russia, what it will do to your GPS?
For those of us who don’t know, WMM is actually a map of Earth’s magnetic field. It “provides precise navigational data for all military and civilian planes, ships, submarines, and GPS units ...
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The Magnetic North Pole's Mad Dash Is Slowing Down
The WMM is a map of the Earth's magnetic field. The movement of the Magnetic North Pole is so significant because all navigation that relied on magnetic field data must be updated regularly.