Why did people invent the compass? What is its purpose?

An instrument for determining direction. It consists of a disk with azimuth scale and a compass installed in the middle. An instrument that uses a magnetic needle to determine the direction of a magnetic field. When in use, it is placed at one end of a straight line and aligned with the other end of the straight line, and the dial reading pointed by the magnetic needle is the magnetic azimuth value of the straight line. It is usually used for approximate orientation of independent survey areas, as well as route and forest surveys. Not suitable for iron ore or near high-voltage lines.

The wonderful use of compasses, first, soothe the nerves: putting compasses under a thick pillow can play a role in keeping the house safe, ward off evil spirits and soothe the nerves, so that you can have a good sleep and rest assured that you will not be crushed. However, it is only useful to put the compass on a pillow made of buckwheat skin, such as a pillow made of cloth, hemp and cotton, and the effect is not good. People who always sleep with buckwheat skin pillows and compasses have a particularly high level of thinking. You can use a smaller compass, about three inches, not a big one.

2. Push the peach blossom: hold the compass vertically, let the oil of the level run to the top, and hold it in the direction of the full moon on the night of 15 and 16, tilt it 30 degrees, think only of the word "Geely" and say to the moon, "Love, love, please come quickly." Soon, love comes to you. This is the biggest tool to promote peach blossom, which means "the sun and the moon are one". The compass is the sun, and the full moon is the moon, but it must be the full moon, that is, the round edge is in place and the sun and the moon shine together. If it's the first quarter, most people are grumpy, while the second quarter is depressed. Many people don't know this. In fact, the compass has many functions to ward off evil spirits, promote peach blossoms and promote wealth, but most people don't need it.

Third, increase wealth: hold a compass in one hand and put it at the height of the chest and abdomen. Turn your hand slowly, while slowly raising it to the height of your neck, transition from bottom to top, and do this action repeatedly. This is to increase wealth, which is called "wealth". After playing with one hand, it is the same action to change the other hand. Anytime. It's especially good to turn like this every day. But to ensure that the center line of the cross must turn to the correct position of the meridian, this wealth is positive. A little bit partial, it will become a partial wealth. If you move to Gankun (four-dimensional), it will be a windfall and a wealth explosion, such as doing stock futures, but this wealth must be done.