Magnetic field permanent magnet manufacturers tell you that magnets are not invented by people, but are natural magnetite. The ancient Greeks and Chinese discovered a naturally magnetized stone in nature and called it "magnetite". The stone can magically pick up small pieces of iron and always point in the same direction when swung at will. Magnetic field permanent magnet manufacturers tell you that early navigators used this magnet as their earliest compass to identify the direction at sea. It should be the Chinese who first discovered and used magnets, which is also known as the "compass", which is one of the four great inventions in China. Next, I will explain in detail what the magnetic field permanent magnet is.
The magnetic field permanent magnet manufacturer tells you that the rotation of electrons around the nucleus will generate an equivalent current. Ampere proposed the concept of molecular current. In a permanent magnet, the electrons are arranged in a certain orientation, and they exhibit a neat molecular current to generate a magnetic field.
The magnetic field permanent magnet manufacturer tells you that the so-called permanent magnet is also relative to the soft magnet. If the permanent magnet is placed in a stronger magnetic field or electric field, the magnet will also lose its magnetism. Of course, it will naturally lose its magnetism after a long period of time.
Magnetic field permanent magnet manufacturers tell you that permanent magnets are placed in an environment without a magnetic field, and their magnetism will gradually disappear over time! In the natural environment, the magnetism of natural magnets (such as magnetite) can be maintained almost permanently. The magnetic field permanent magnet manufacturer tells you that this is because of the existence of the geomagnetic field. Magnetite is iron tetroxide. It is generally believed that In the early days of the earth's formation, it was not magnetic, but it has accumulated magnetism in the long-term action of the earth's magnetic field, so it can be preserved for a long time. However, if the direction of the geomagnetic field changes, or the placement direction of the magnetite is changed, its magnetism will gradually disappear after a long time, and finally a magnetic field will be formed in the opposite direction!