Magnets To Try
Now that the magnet can attract iron, it can also attract other metal? Our ancestors did a lot of trials, found magnets not only fails to attract gold, silver, copper and other metals, can hardly be attracted to items such as tiles. People have recognized Han magnet can attract iron, unable to attract other items. When you put two magnets together near each other, and sometimes attract each other, and sometimes mutually exclusive. Now people know that magnets have two poles, a n, a s. Very mutually exclusive same-sex and opposite-sex attraction. When people do not know this truth, but also is able to detect this phenomenon.