? ? ? ?Faraday's greatest achievement was from 1830 to 1839, when he was the first scientist to contribute to the discovery of modern electricity. In 1821, he studied the magnetic effects of the electric current found by OE and made a major discovery: the direction of the magnetic action is perpendicular to the direction of the current that produces the magnetism. Faraday also made an electric motor to prove the rotation of a wire in a constant magnetic field. He even proved the rotation in the earth's magnetic field. The experiment made a deep impression on himself and his contemporaries.
? ? ? ?Faraday firmly believes that the relationship between electricity and magnetism, magnetic watts manufacturers must be promoted, if the current can produce a magnetic field, the magnetic field must also produce current. Faraday has ten years of meditation. He did many experiments and all failed. Until the end of 1831, he has made great process of motor magnetic Wapota invented an electromagnetic current generator, which is the most primitive generator. At this time Faraday not only made the contribution of cross - era, but also laid the foundation of the future power industry.
? ? ? ?A politician once asked Faraday what his invention did for him. He said: "I don't know, but one day you will go to from them. "
? ? ? ?Anti magnetism is another big discovery for Faraday. Many substances make their needles perpendicular to the magnetic lines of force when they make tiny needles. And it is pushed away by the poles of the magnet, which is produced by very weak forces, much weaker than the forces acting on the iron in the magnetic field. This is a phenomenon that deserves careful study, and Faraday spent months studying it.
? ? ? ?The rotation of a wire in a constant magnetic field produces an electric current, an electromagnetic current generator, which is the most primitive generator.
? ? ? ?Magnetism can magnetize water
? ? ? ?New use of magnet is widely used in modern science and technology, radio, TV, tape recorders, video recorders, telephone, telex, electronic watches, electronic microscope, various types of meter, permanent magnetic and electromagnetic sucker of grinder, crane head, geophysical prospecting equipment, electronic computer and generator, a wide variety of motor and so on, are to apply a variety of magnetic materials. The maglev train has been developed in some countries, because it reduces the impact between the wheel and the ground, so smooth, no air pollution.
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