Tremendous creation of magnet compass our country

Tremendous creation of magnet compass our country

Magnet is content of all sorts of magnetic material connection originally, early actors or actress still magnetic force company is applied with respect to the profession of germinant development magnet. Magnet is a kind can the material that each other attract or each other elbow out, if say the subtle member of interior of something put oneself in another's position can direction is put like according to, it can become magnet. Composition is the atomic structure such as iron, cobalt, nickel special, atomic oneself has magnetic moment, normally these mineral resources elements are put disorder. Mutual influence does not show magnetism area to give magnetism, but outer force (like magnetic field) guide bring next elements to put directional direction collective, show magnetism, also be the magnet that common weighs namely. Iron, cobaltic, nickel, it is the most commonly used magnetic material, basically magnet divides permanent magnet and soft iron, permanent magnet is to add strong magnetism, make the spin of magnetic material and electronic angular momentum are put into fixed direction, soft magnetism is to add electrify to flow (also be a kind of measure that imposes magnetic force) wait for soft iron of voltaic take out to meet slowly lose is magnetic. Magnet is not person creation, have natural magnetite, the earliest discovery reachs those who use magnet should be our country person. So " compass " it is our country person one of 4 big creation.

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