Compass
a tool that uses a magnet to point in the direction of the Earth’s magnetic poles
A compass is a navigational tool that is used to determine direction – it helps to find the north, south, east or west direction. It consists of a magnetized pointer (the needle) that is aligned with the Earth’s magnetic field. The needle is usually suspended over a card, which is marked with the four cardinal points (north, south, east, and west) and the degree markings in between them.
To use a compass, hold it levelled in your hand and allow it to settle, so that the needle is pointing to the magnetic north. Then rotate your body until the direction of travel you desire is aligned with the direction of the needle. The needle should always be kept level and not tilted or slanted.
Compasses are generally used for navigation, such as when hiking, camping, or sailing, to determine the direction of a destination relative to the current location. They can also be used in geomagnetic surveys, building and construction, and other applications that require precise orientation and direction-finding capabilities.