History Fest electromagnet gold (Sturgeon) electromagnet. AD 1825, Englishman William Stewart Kim (William Sturgeon, 1783 年 -1850 years) will have a current through a wire wound on an insulating rod, invented the electromagnet. American physicist Joseph Henry (Joseph Henry 1797 年 -1878 years) after learning of the news, in the soft core coil winding intensive use of the battery current is not after power, will be able to pick up a ton The iron. Other ancient literature such as "Shan Hai Jing" also has a similar record. Magnetic properties of iron absorption was found very early, "Lu" chapter nine volumes have proficient: "chee move iron, or lead it too." At the time called the "magnetic" to "chee" They put a magnet to attract Iron seen as mother to attract children. And said: "The stone is a hard mother, but 石有慈 two and has not been kind, loving stone to attract his children, has not been kind of stone can not be attracted." Chinese people before the magnet is written 'chee stone ", is the meaning of love stone. North also three hundred and twenty years, Hill said irrigation problems of its multi ailanthus Zhe, under which more than quicksand, multi-Tobe. There are animal behavior magnet tile factory, its like cattle and white-tailed tile magnets brand, it sounds like Jiao, the name that the Father. Bird behavior, its like pheasant and female human face magnet see others jump, the name startled Sri Lanka, since the Ming call also. Carpenter Han water out of Yan, while the West streamer in Ao Chak, where more magnet. Notes ③ magnet: Also as "chee Stone", a natural ore sales tile magnets have attracted iron, nickel, cobalt and other metal material properties. Commonly known as a magnet, now known as magnetite. Compass, one of the four ancient Chinese invention, the system is the use of magnets made. Tile magnet manufacturers, new and Tong Xin magnetic, magnet provided by the Dongguan City Tong Xin magnetic Limited. Xin Tong, Dongguan City, the new magnetic Limited (www.dgxtxmagnet.com/) is Dongguan, Guangdong, magnetic leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In the new Tong Xin magnetic leadership with the staff warmly welcome all inquiries to discuss, with new magnetic Tong Xin a better future.