Earth’s magnetic north is not static. Like an anchorless buoy pushed by ocean waves, the magnetic field is constantly on the move as liquid iron sloshes around in the planet’s outer core.
Your navigation system just got a critical update, one that happens periodically because Earth’s magnetic north pole keeps moving. Here’s what to know.
The magnetic field is shown by lines with arrows that point from north to south. You can tell how old some coins are by testing them with a magnet. 5p and 10p coins made before January 2012 are ...
Magnetic North is on the move — faster than ... You might think that direction would be one of them. North, south, east, and west, the points of the compass. But while the True North of the ...