A compass uses a magnetized needle that is constantly drawn to magnetic north. No matter how elaborate the model of compass, it still relies on the same magnetic attraction of needle to pole to ...

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 ...

place your compass at the other end of the line and draw another arc - crossing the first arc in two places. Follow the instructions and draw the perpendicular from a point to a line construction.

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 ...