It is known that life on our planet would not be possible without the earth‘s magnetic field. Recent studies show that many so-called ”lifestyle diseases“, particularly the degenerative processes, are attributable to an environmentally determined, attenuated or even missing magnetic field.
Magnetism is the force that orders the universe. It enables the stars and planets to orbit in space at amazing speed. Magnetism is a fundamental principle that we encounter everywhere – from the smallest building blocks, the atoms, molecules, cells and organs of the organism through to the natural magnetic field of the earth, the sun and the universe as a whole.
The earth‘s magnetic field is several billion years old and so has been present on our planet longer than any form of life. Life on earth would not be possible without magnetic energy. The earth‘s natural magnetic field is very weak and has a strength of only about 0.5 gauss. This strength varies according to the time of day.
What is a magnet?
The term comes from the Greek. The first natural magnet is said to have been discovered in the town of Magnesia and named after the place where it was found.
The area around a magnet, the region in which magnetic forces can be observed, is called the magnetic field. Like any material, a magnet consists of a lot of tiny particles, the atoms. The atom is the smallest magnet. In terms of their structure, atoms can be compared to our solar system: the sun is at the center (= the nucleus) and the planets (= electrons) rotate in orbit around it. The nucleus has a positive charge and the electrons in the shell are negatively charged particles. Positive and negative particles attract one another. So magnetism holds the material together.
As well as natural magnets (found in the form of magnetic iron ore) there are also industrially manufactured ones. Various materials are used to make magnets: iron, steel and alloys of aluminium, nickel, cobalt and iron (AlNiCo).
The ends of a magnet are called magnetic poles (north pole and south pole). The north pole is usually colored red and the south pole green. The atoms of both can be permanently or at least temporarily aligned in one direction.
A magnet has the property of attracting materials like iron, nickel and cobalt. These are known as ferromagnetic materials.