Since the magnet can attract iron, so if you can attract other metals it? Our ancestors did a lot of attempts, not only can not find a magnet to attract gold, silver, copper and other metals, it can not attract items like bricks. Western Han Dynasty, when it has been recognized magnet magnet can attract iron, but not attract other items. When two magnets close to each other when put together, sometimes attract each other, sometimes mutually exclusive. People know that the magnet has two poles, one said N pole, one called S pole. Homosexual very mutually exclusive, opposite poles attract each other. At the time people do not know the truth, but this phenomenon can still perceived. To the Western Han Dynasty, there was a big alchemist named Luan, he made use of this nature magnet like two pieces of things, by adjusting the mutual position of the two pieces polarity magnet tile sales, sometimes two pieces attract each other, sometimes mutually exclusive. Luan big called "fighting chess." He dedicated this novel stuff Han Dynasty, and the spot demonstration. Emperor marveled, Dragon Heart big Yue, Feng Luan much actually "five General Lee." Luan big advantage of the nature of magnets, produced a novel stuff deceived the Han Dynasty. Earth is a big magnet, its two poles, respectively, near the geographic South Pole and North Pole geographical areas. Therefore, the Earth's surface of the magnet, when free to rotate, will be due to sex repulsion magnet, an indication of the nature of the opposite sex attraction north and south. The ancients understood this truth is not enough, but they are very clear this phenomenon. Thirties late 1930s, alnico magnet successful development, it makes possible large-scale application of the magnet. Fifties fifties, there barium ferrite magnet, a permanent magnet not only reduces the cost, scope of application of permanent magnet materials in turn broaden the high-frequency fields. Sixties to the sixties magnets, samarium cobalt permanent emergence, for the application of magnets has opened up a new era. So far, the rare earth permanent magnet has experienced first-generation SmCo5, the second generation of precipitation hardening Sm2Co17 tile magnets brand, developed to the third generation Nd-Fe-B permanent magnet materials. Ferrite magnets are still present, the largest amount of permanent magnet material tile wholesale price, but the value of NdFeB magnets has greatly exceeded the ferrite permanent magnet materials, NdFeB magnet production has become a major industry. Warring States Period magnetic phenomena found our ancestors have accumulated a lot of understanding in this area, often encountered in the search for iron ore magnetite, that magnet (the main ingredient is iron oxide). These findings have long been documented down. "Tube" of several articles in the earliest records of these findings: "the mountains are a magnet who, under which a bronze." Sell tile magnets, magnets, magnetic Xin Tong new offer by Dongguan Xin Tong new magnetic Limited. Xin Tong, Dongguan City, the new magnetic Limited (www.dgxtxmagnet.com/) strong, credible, in Dongguan, Guangdong magnetic materials industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the new Tong Xin magnetic and you hand into the brilliant, for a better future!