How does the compass look at the pattern?

Look at the direction indicated by the pointer.

Generally, there are four marks on the dial of a compass, namely, N, S, W and E, which respectively represent the four directions of north, south, west and east, and some of them are also marked with NE, NW, SE and SW, which respectively represent the four directions of northeast, northwest, southeast and southwest. Place the compass horizontally, and the direction pointed by the red fish end of the pointer is the actual direction after the original rotation. The compass was called Sina in ancient times, and its main component was a magnetic needle mounted on the shaft, which could tell the direction under the action of natural geomagnetic field.

There are three parts in the invention of the compass that physically indicates the direction, namely Sina, compass and magnetic needle, which are often used in navigation, geodesy, travel and military affairs. Compass, as one of four great inventions of ancient china, plays an important role in the development of human science and technology and civilization. It was first used for sacrifice, etiquette, military affairs and divination.