When using the compass, avoid metal objects nearby, because metal objects will interfere with the magnetic needle of the compass. In addition, when measuring the direction, don't let the compass touch the body or objects, so as not to affect the accuracy of the measurement. When using a compass, you should pay attention to maintaining the balance and stability of the compass. If the compass is unstable, the measurement results will also be affected. Therefore, it is best to put the compass in a stable place when measuring.
In geomantic omen, the pointer and direction of a compass represent different meanings and attributes. For example, geomantic omen, according to the compass instructions to determine the direction of good or bad. Therefore, when using the compass, we need to pay attention to the corresponding relationship between the magnetic needle and the orientation. You need to pay attention to the timing when using the compass. It is best to choose sunny days and use the compass during the day, so as to avoid the influence of external magnetic field on the compass.
The origin of compass
The origin of compass can be traced back to South Compass and Sina in ancient China. The compass is a tool to indicate the direction in ancient China. Its principle is to use gears and magnetic needles to indicate the direction. Sina, on the other hand, is an old guider, shaped like a spoon, with a magnetic needle at the bottom, which can rotate freely and indicate the direction.
With the passage of time, people improved the compass and Sina, and gradually developed a modern compass. According to historical records, the compass first appeared in the Tang Dynasty, when it was mainly used for geomantic omen and navigation. In the Song Dynasty, the compass developed more mature and perfect, and was widely used in Feng Shui, navigation, map drawing and other fields.
The principle of compass is to use the earth's magnetic field to indicate the direction. Its main components are a magnetic needle and a dial. The magnetic needle can rotate freely and point to the magnetic north pole of the earth. The direction and position are marked on the dial, and the direction can be obtained according to the position pointed by the magnetic needle.