Scientists have found a way to create and destroy magnetic fields at a distance

Physicists managed to perform a previously considered impossible action, namely to create and destroy magnetic fields at a distance. This work refuted a theory that lasted nearly 178 years.

What is the peculiarity of a unique experiment

The uniqueness of the experiment carried out lies in the fact that by placing the wires in a special way and passing through them current, it was possible to create a magnetic field of such a configuration that as if it was induced from a completely different source.

If you and I recall Earnshaw's theorem, which was proved back in 1842, then we will learn that the strength of the magnetic field weakens at a distance from the magnet and it is impossible to create a point of maximum magnetic field strength in a completely empty space.

In other words, there is no way you can create the field of a magnetic source remotely without placing a real source (magnet) in a given place.

Real experiment impossible in theory

However, a scientific group headed by a physicist from Istituto Italiano Di Tecnologia (Italy) R. Mach-Battle, suggested that she could get around this problem.

Their confidence was fueled by work in the field of optics, where specially developed materials were used, which are known as Metamaterials (endowed with properties not found in natural materials) to circumvent the limitation on settable wavelength resolutions Sveta.

As scientists have suggested, since it was possible to perform impossible actions in optics, then new magnetic materials are capable of performing the impossible in the magnetic world.

As shown by preliminary calculations, scientists needed to create a material that would have negative magnetic insight. That is, the direction of magnetism that would be induced inside the material would have the opposite direction with respect to the original magnetic field.

But scientists decided to go further and did not create artificial material, but decided to imitate its behavior by creating called "temporary" material, consisting of a certain way laid wires, through which a strictly fixed current value.

Thus, a setup was created that simulates artificial material. Next, the scientists formed a hollow cylinder that consisted of 20 wires that wrapped around one long inner wire.

As soon as current was passed through the wires, a magnetic field was formed, which in its configuration looked as if the long wire was located outside the device, and not inside.

As the participants in the experiment themselves said, they managed to create the illusion of the presence of this source at a distance. To a certain extent, this is a unique event in the world of physics.

The scientists shared the results of their experiment on the pages of the Internet journal Physical review Letters.

Why is it needed

Any research should be of practical use. So, according to scientists, their discovery may be in demand in various fields. In particular, it can be in demand in medicine for complex operations.

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