The three Norths are moving on from their "historic" meet-up in England. After momentarily aligning over Britain for three years, the British Geological Survey has just reported that the alignment will drift off the coast of England very shortly and head over the North Sea. The rest of this article is behind a paywall. Please sign in or subscribe to access the full content.

Defining North is fiddlier than you might think. “True north” points to the geographic North Pole at the top of the planet, while “magnetic north” is where a compass needle aligns with the Earth’s magnetic field. There’s also “grid north,” the straight lines on Ordnance Survey maps that approximate true north because they’re drawn on a two-dimensional grid trying to represent a three-dimensional, spherical planet.

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