Why Magnet Could Instruct North And South

The rotation of the earth always move in one direction. The magnetic field and current combined continuously and strongly. Finally the whole earth will form a huge magnetic field. Earth just like a huge magnet. In fact, the N pole is not in the Arctic and the S pole is not in the antarctic.

The earth center contain some materials, such as nickel, cobalt, iron and others which can easy to be a magnet. These materials can rotate with earth rotation. It will formation of convection with different temperatures.

If there are something rotate in the magnetic field, you will find that produce current like generator. At the begging, it is a small magnetic field. Finally current will also produce a new magnetic field. When people refer to the magnet, the first thought would be a compass. Compass is a great invention in our ancient time. It is also regarded as a miracle in the world history. Expect the magnet, now more and more industries use lodestone which is also made by magnet principle. This product is widely used in the industrial field. Certainly many kinds of items have been extend invention.