Each of these is a disruption in the magnetic field that can affect a compass' ability to accurately point to true north.

A compass would still technically work in space, but it wouldn't necessarily point you back to Earth. Instead, it would point to the north pole of whatever magnetic field is the strongest ...

to magnetic north, anyway). [Videoschmideo] wanted to make a compass that pointed somewhere specific. In particular, the compass — a wedding gift — was to point to a park where the newlywed ...

But what happens when you take a compass beyond Earth — into orbit, to the Moon, to other planets, or even beyond our solar system? Would it still point north, or would it aimlessly spin in the ...

Primarily, the compass was used for geomancy for a long time before it was used for navigation Ancient Chinese alchemists realized that the magnetite ore would point towards a magnetic north. Their ...

As the time line at right shows, hundreds of times in our planet's history the polarity of the magnetic shield ensheathing the globe has gone from "normal," our current orientation to the north ...

The planet's magnetic North Pole, where compasses point, has been unexpectedly moving ... This model "helps to direct the compass tools found in smartphones," and is "used by the military to ...

A permanent magnet is always magnetic. It has an invisible magnetic field. Only certain materials, such as iron, feel a magnetic force. Permanent magnets can come in lots of different shapes and ...

THE TECHNOLOGY OF A MAGNETIC COMPASS ITSELF HAS PROVEN REMARKABLY DURABLE. DRAWN TO MAGNETIC NORTH AND SUSPENDED IN LIQUID TO DAMPEN ROTATION AND ADD MAGNIFICATION, A COMPASS IS ABOVE ALL ...

Once the compass has been calibrated, the compass at 0 degrees will point to magnetic north - this differs from True North. If you want your iPhone's compass to always point to True North ...