Basic Knowledge About Magnets And Magnetite

The main elements of Magnet are iron, cobalt, nickel

, etc. their internal structure of atoms is special and the atoms themselves have the magnetic moment. Under normal circumstances, the sequencing of these mineral elements is disordered and magnetic sectors affect each other and therefore dont show any magnetism. However, if there is some strength from the external world such as magnetic field, their molecules sequencing would become the same so that the magnetism will appear. In daily life, we often call such items as magnets. According to the science, magnets can be divided into several types such as permanent magnets and soft magnets. What permanent magnets are the magnets have the strong magnetism and make the magnetic materials have the fixed direction with electronic angular momentum while the soft magnets are magnets that added with electric current to get rid of magnetism. Ancient China people use magnets to make compass, the four great inventions in Ancient China along with print, papermaking technology and gunpowder, so that they can be consider the first nation to discover and use magnets.

As you known, magnets are the objects that can produce magnetic field and can attract the magnetic material such as iron, nickel, cobalt and other metals. Do you know how to judge the magnetic pole? It is so simple and just needs one thin string. The direction that point to the north is named as North Pole while the direction that point to the south is named as South Pole. In fact, the earth itself is a huge magnet. The characteristic of magnets is that the different poles are attached while the same poles are excluded.

Do you how to get the transition between magnetite and magnets? According to scientific research, the internal magnetic molecules in magnetite which is not be magnetized are disordered with no regular arrangement. After being magnetized, the magnetic molecules will be arranged orderly. Do you know the meaning? At this time, the South Pole and the North Pole of magnetic molecules will be facing the same direction so that the magnetite is changed into magnet. By the way, on the same magnet, they are always the South Pole and the North Pole with the same quantity of magnetism. If the magnet is split into two pieces and the each piece of magnets also have the South Pole and the North Pole with the same quantity of magnetism. Is it so mystical?

by: tony steve

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