Ancient understanding of magnets

The history of magnets can be traced back to China in 2000 BC, and the earliest compass was made based on the magnetic principle of natural magnets.

The Industrial revolution promoted the use of magnets

Early 19th century: Hans Ørsted (Hans ørsted) discovered that electric currents can produce a magnetic field, taking the first step in electromagnetism.

Late 19th century: Nikola Tesla invents the alternating current system, and the use of magnets in the field of electricity begins to explode.

20th century: Artificial magnet technology has developed rapidly, and aluminum nickel cobalt (AlNiCo) magnets are widely used in industry.

Modern high performance magnet

Today, the strongest magnet material is NdFeB, which is dozens of times stronger than traditional magnets and is widely used in high-tech fields such as new energy vehicles and wind power generation.

The history of magnet development has not only witnessed the progress of human science and technology, but also indicates that the future magnetic technology will play a greater role in energy, medical care, information storage and other fields.