Magnetic refers to the object or material can produce magnetic fields
Magnet is refers to the magnetic field can produce an object, or material, usually made of metal alloy, has the strong magnetism.
Traditionally can be divided into 'permanent magnet' and 'non permanent magnet'.
Permanent magnet can be a natural product, also called lodestone, can also be made by artificial (
The most powerful magnet is neodymium magnets)
The permanent magnets, magnetic sometimes lost.
Magnetized and Chinese found in nature in ancient Greece there is a natural stone, called it a 'magnet'.
This stone can be magic little pieces of iron absorption, and at a random wobble is always point to the same direction.
Early voyager as its earliest refers to the magnet compass at sea to tell direction.
After one thousand years of development, the magnet has become a powerful material in our life today.
Through the synthesis of different material alloy can achieve the same effect as the tool, but also can improve the magnetic force.
Came in the 18th century artificial magnet, but the process of making stronger magnetic material is very slow, until the 1920 s to produce the aluminum nickel and cobalt,
Then, in the 1950 s produced the ferrite (
, creating a rare earth magnet in the 70 s [
Rare Earth all including ndfeb (
And samarium cobalt (
At this point, magnetism obtained the rapid development of science and technology, strong magnet magnetic material also makes the components more miniaturization.