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Source of magnet
Gauss Industrial Co.,Ltd | Updated: Dec 01, 2018

The magnet is not invented by man, but is the natural magnetite. Ancient greeks and Chinese discovered that there was a kind of naturally magnetized stone in nature
, called it "magnet". The stone can magically suck up small pieces of iron and always point in the same direction after swinging at will. Early navigators used the magnet as their earliest compass to navigate the sea. The earliest discovery and use of magnets should be the Chinese people, that is, the use of magnets to make "compass", is one of the four great inventions of China.
After thousands of years of development, today's magnet has become a powerful material in our life. By synthesizing alloys of different materials, the same effect can be achieved as that of magnets, and the magnetic force can be improved. Artificial magnets appeared in the 18th century, but the process of making stronger materials was slow, until the 1920s, when Alnico was made. Then Ferrite was made in the 1950s, and Rare Earth magnets (including NdFeB and SmCo) were made in the 1970s. At this point, magnetic science and technology has been rapid development, strong magnetic materials also make components more compact.

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