The magnetism of the earth is one of the physical properties of the earth's interior. The earth is a large magnet, and a magnetic field is formed around it, that is, the space where the magnetic force is exhibited, which is called the geomagnetic field. It is very similar to the magnetic field of a magnetic dipole placed at the center of the earth, which is the most basic characteristic of the earth's magnetic field. The formation of the earth's magnetic field is similar to the formation of the magnetic fields of other planets. The earth or other planets are charged for some reason, or the distribution of electric charges among various circles is uneven.
These charges move in a circle due to the telemarketing list rotation of the planet. Since the moving charges are currents, the currents must generate magnetic fields. After the Second World War, with the rapid development of paleomagnetic research, more and more evidence of geomagnetic field inversion has been obtained. For example, when magma cools and solidifies into rock, it will be magnetized by the geomagnetic field and retain its magnetism like a magnet. The direction of its magnetic field is the same as that of the geomagnetic field during diagenesis.
The North and South Poles are expected to reverse completely within 20 years Scientists have long suspected that Earth's magnetic field could flip in the near future, changing the magnetic north and south poles, and a new study suggests that this change could happen much faster than researchers thought. Simulations published today in Nature Communications predict that the magnetic field can revolve around the Earth by up to 10 degrees per year, 10 times faster than previously theorized, 100 times faster than scientists have actually observed, and likely.