You should have seen something about perpetual motion machine on the internet! Most of them are perpetual motion machines made of magnets. Let me explain the principle of magnetic perpetual motion machine.

Hard magnets (permanent magnets) and soft magnets, whether natural or artificial, will lose their magnetism in any shape. Moreover, they will be weakened by the influence of the earth's magnetic field on the earth, and will also be weakened when they encounter high temperature and impact.

The rotation and translation of the perpetual motion machine are formed by the mutual repulsion of magnets, and the electrons in the electric field generated by magnets move in disorder. Under the mutual repulsion of magnets, electrons cancel each other out under the magnetic effect, which also consumes magnetism. Coupled with the earth's magnetic field and the magnetic force consumed by high temperature, the magnetic perpetual motion machine will always stop. So at this rate, it is impossible to build a magnetic perpetual motion machine, because it always consumes energy. The "magnetic perpetual motion machine" we saw on the Internet does not violate the law of conservation of energy, but it is not a perpetual motion machine.

There is also a small Marta on the market, which is also made by using the principle of magnetic repulsion. These are a large part of the reasons for using electromagnets.

It is impossible to build a perpetual motion machine because we have violated the law of conservation of energy. We can't expect the birth of perpetual motion machine, but we can only use the' endless energy' around us (such as solar energy, wind energy, hydropower, plant energy ...) to transform the world.