Fun with Magnets

A magnet is an object made of certain materials which create a magnetic field. We can say magnet is any material that possesses a magnetic field. This field exerts forces on any ferromagnetic material within its vicinity. Every magnet has at least one north pole and one south pole.
we say that the magnetic field lines leave the North end of a magnet and enter the South end of a magnet. By example If you take a bar magnet and break it into two pieces, each piece will have two ploes North pole and a South pole. If we take one of those pieces and break it into two, each of the smaller pieces will have a North pole and a South pole. No matter how small the pieces of the magnet become, each piece will have a North pole and a South pole. It has not been shown to be possible to end up with a single North pole or a single South pole which is a monopole.
The ancient Greeks and Chinese discovered that certain rare stones, called lodestones, were naturally magnetized. The first known reference to magnetism dates back to the 4th century B.C. from a Chinese literary work called “Book of the Devil Valley Master”. In this book, it was written that “lodestone attracts iron to it”. Lodestone is a type of magnetite metal with a special crystalline structure that can naturally create a magnetic field, thereby attracting and magnetizing iron. By the 12th century A.D