external where you can punch in your location details and receive the current magnetic variation for your desired location. If the results show to be west of grid north this means, in practical ...

They will always have to take account of the variation between magnetic north from a compass and grid or true north on a map,' he said. The Earth's magnetic field, and so magnetic north ...

They will always have to take account of the variation between magnetic north from a compass and grid (or true) north on a map.’ ...

A gradual weakening in Earth's geomagnetic field has raised concerns that the field could flip, reversing magnetic north and ... life on Earth and the electric grid. "Solar storms" that barrage ...

there is a website where you can punch in your location details and receive the current magnetic variation for your desired location. If the results show to be west of grid north this means ...