A compass uses a magnetized needle that is constantly drawn to magnetic north. No matter how elaborate the model of compass, ...

Earliest records show a spoon shaped compass made of lodestone or magnetite ore ... Often, the Big Dipper (Great Bear) was drawn within the center disc. The square symbolized earth and the circular ...

A magnetic field is invisible, but it can be detected using a magnetic compass. A compass contains a small bar magnet on a pivot so that it can rotate. The compass needle points in the direction ...