Magnets, known for iron attracting, are spontaneously strong in magnetism, no matter they are natural-made or man-made. The storage of the magnet is an important field for us to know. Below are some points.
The neodymium permanent magnet is a high-tech material for the National 863 Project. What the magnet can produce is a biological magnetic field that simulates the characteristics of the human magnetic field and the performance is stable!