The compass is a magnetometer used for navigation and orientation that shows direction in regards to the geographic cardinal points. The structure of a compass consists of the compass rose, which displays th… See more

Before the introduction of the compass, geographical position and direction at sea were primarily determined by the sighting of landmarks, supplemented with the observation of the position of celestial bodies. Oth… See more

The compass was invented in China during the Han dynasty between the 2nd century BC and 1st century AD where it was called the "south-governor"(sīnán 司南) or "South Pointing Fish" (指南魚). The magnetic compass w… See more