Trying to understand how a map relates to what’s on the ground can be tricky. It requires the brain to do a lot of stuff that it doesn’t customarily do daily. This is one of the reasons that ...

If you have a compass, you can know the direction exactly, but not many people carry a compass with them all the time. Also, smartphone apps with a compass function may not be usable in an emergency ...

A compass is a navigational tool that helps people find their direction using the earth's magnetic field. It contains a magnet that aligns itself with the earth's north pole to indicate the direction.

For decades, scientists have known that migratory birds use Earth’s geomagnetic field—along with light, stars, and other cues—to guide them on remarkably long journeys. But it is unclear just how ...