Firstly, as a magnet manufacturer, we will inform you that the composition of the magnet is formed by the arrangement of atoms such as iron, cobalt, and nickel through a special internal structure. The original magnet itself has magnetic moments. In general, the arrangement of these mineral molecules is relatively chaotic. And their magnetic regions interact with each other and do not show magnetism, but under the guidance of external forces (such as magnetic fields), the arrangement direction of their molecules will tend to be consistent with the magnet, and their magnetism will show a significant difference. Magnets are divided into permanent magnets and soft magnets. Permanent magnets add a strong magnet, which causes the spin of the magnetic material and the angular momentum of the electrons to be arranged in a fixed direction. Soft magnets add current (also a method of adding magnetic force), and removing the soft iron will gradually lose its magnetism. The earliest person who discovered and used magnets should be the Chinese "compass", which is one of China's the Four Great Inventions.