What is the name of one end of the guide rail after the magnet is suspended and stationary?

After the floating magnet is stationary, the end pointing to the south is the guiding pole or the S pole.

Compass, called Sina in ancient times, is mainly composed of magnetic needles installed on the shaft. Under the action of natural geomagnetic field, the magnetic needle can rotate freely and keep in the tangential direction of magnetic meridian. The north pole of the magnetic needle points to the geographical north pole, and we can use this property to identify the direction.

As one of four great inventions of ancient china, its invention has played an inestimable role in the development of human science, technology and civilization. In ancient China, the compass was first used for rituals, etiquette, military affairs and divination, and to determine the orientation when looking at geomantic omen.

Extended data:

The invention of the compass with physical direction indication has three parts, namely Sina, compass and magnetic needle, all of which belong to the invention of China.

SiNa is an instrument used to identify the direction in ancient China, and it was invented by the working people in ancient China who realized the magnetism of objects in their long-term practice. According to ancient mine records, it first appeared in the Cishan area of Hebei Province during the Warring States Period.

Compass, also known as compass, is a feng shui detection tool and a commonly used operation tool for managing style. The compass is mainly composed of a magnetic needle in the center of a disk and a series of concentric circles, each of which represents the ancient people in China's understanding of a certain level of information in the cosmic system.

Magnetic needles are needle magnets, usually long and narrow diamonds. The middle support can rotate freely in the horizontal direction. Under the action of geomagnetism, the two tips point to the south and the north respectively at rest. Compass and compass are both applications of magnetic needle.

References:

Compass-Baidu Encyclopedia