The phrase "winds aloft are true" means that wind directions are referenced to "true north" (the Earth's geographic axis), not magnetic north. True north differs from magnetic north, and the angular ...
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Why the poles move around, and what it means to us
The magnetic north pole is currently located in the Arctic region, near Canada, but it is moving towards Siberia at a rate of about 55km per year. The difference between true north and magnetic north ...
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