What to Do? How Fast is Permanent Magnet Decline?

How fast is permanent magnet decline? I have seen Japanese programs that Japanese machinery -advanced countries have the spirit of liking research and development and research operations. I have seen Japanese programs that Japan will continue to experiment with things.

I believe that every childhood has played magnets or magnets. I believe that children in the family also know that their courses will definitely go to the relevant magnetic courses, and there will be doubts to ask parents a lot of questions. In addition to the functions of magical magnet magnets, it is often thought about a question, whether the magnetic field of the magnet magnet is permanent and will it disappear?

As far as permanent magnetism can be stored for a long time, but in the current environment, the magnetic properties of permanent magnets will also slowly attenuate, but it is long for a long time. The permanent magnet needs to be magnetic under external conditions. Once the condition is removed or no more time, the magnetism will disappear.

However, in most substances, the direction of the internal electronics movement is inconsistent, there is no regular, and there is no chaos, so its magnetic effects offset each other. When the magnetic field generated by the electron spin offsets the influence of the magnetic field generated by the circular current, the object shows magneticity.

Of course, what we call permanent magnets can be almost permanently saved with magneticity, but under certain conditions, magneticity disappears. This is the principle of demagnetization and magnetic charging in many places in many places in our daily life.