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New study: humans do feel the earth's magnetic fieldAlthough weak, the earth's magnetic field is perceived by various animals, many vertebrates respond to magnetic stimuli: fish, amphibians, reptiles, birds.Lire la suite
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Which direction does the compass point at the North Pole?The Earth's magnetic field originates at a depth of 2,900 kilometers. There is the earth's core, which is essentially composed of liquid iron that is constantly beingLire la suite
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Can a magnet go bad ?We know the magnetic field of natural magnets, found in different parts of the world, appeared some millions of years ago. But the magnetic field of manganeseLire la suite
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The diamagnetism of waterDiamagnetism is a property of certain materials which, when subjected to an external magnetic field, develops a very weak magnetic field opposite to thatLire la suite
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What is the difference between "ferromagnetic" and "magnetic"?The two terms ferromagnetic and magnetic are often used interchangeably to describe a material to which the magnet adheres.Lire la suite
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Lunar magnetic field: the mystery finally solved!The Moon today is almost devoid of a magnetic field. The current magnetic field measured on the surface is 1 000 times weaker than that on the Earth's surface.Lire la suite
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What is a magnetic storm?Solar flares are usually accompanied by the ejection of plasma streams. When they come into contact with our planet, these plasma flows, composed of ions andLire la suite
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Can 2 stacked magnets make a magnet of the same thickness ?In theory, yes. But the thickness of the magnet coating and its irregularities reduce the adhesive force of a magnet stack compared to a single magnet of theLire la suite
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Have you heard about the Magnetic Field Viewing Film ?It is a film that has a magical aspect : you place it on an object that contains a magnet and it shows you the magnetic field produced by the magnet, evenLire la suite
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What safety precautions should be taken with the neodymium magnets ?The experiences are not always as we expect them to be. In addition to the risk of pinching, you must also be wary of metal shards due to impacts betweenLire la suite
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Why are magnets not recommended for pacemakers wearers ?The pacemaker, or cardiac battery, is a device implanted in the body that produces electrical impulses intended to stimulate the heart muscle, thus making itLire la suite
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What is the remanence of a magnet ?Remanence or remanent magnetisation or residual magnetism is the magnetisation left behind in a ferromagnetic material (such as iron) after an externalLire la suite
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How do magnets behave in zero gravity?It is known that some materials, solids, liquids or gases can behave differently in zero gravity (or micro-gravity). One might ask whether permanent magnets areLire la suite
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Can I separate the north pole from the south pole of a magnet ?However, some newbies claim to be able to be able to use in magnetic therapy only the north or the south of the magnet,or to magnetise water with differentLire la suite
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Do magnets attract as strongly as they push back ?The attraction between magnets is slightly stronger than their repulsion. This is due to the orientation of the elementary magnets in the actual magnet. WhenLire la suite
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The Orsted experience, or the discovery of the link between electricity and magnetismIn April 1820, during a course in electricity which he was giving to his students, Orsted discovered the relation between electricity and magnetism in anLire la suite
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Does the North pole of the magnet have a different therapeutic effect than the South pole ?The first irrefutable proof is that magnetic monopoles do not exist. Indeed, a magnetic field only North or South cannot exist as the tails side of a coin cannotLire la suite
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How to locate the north side of a magnet ?Auris’ therapeutic magnets are bipolar, they have a north side and a south side, like a coin has one side heads and one side tails.Lire la suite
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Does a magnet attract only iron ?The reason is that the electrons of these metals, like those in iron, have a special configuration around their nucleus which allows them to all orient themselves inLire la suite
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How to properly heal with magnets ?As soon as a wound goes beyond the surface layer of the skin and reaches the dermis, the healing process starts to close the breach, limiting the loss ofLire la suite
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Since when is there an Earth magnetic field ?It is a powerful shield that protects the Earth from harmful effects of the highly energetic particles carried out by the solar winds and those which come fromLire la suite
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How to make a neodymium magnet ?You have to start by making the alloy of the neodymium magnet. The three elements : iron, neodymium and boron as well as other ingredients are finely groundLire la suite
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Why can the Earth's magnetic field reverse ?In the early 1900s, scientists discovered that rocks of volcanic origin had variable magnetisation direction. Some measurements indicated a magnetisation in theLire la suite
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Magnetic curiosity : The Halbach NetworkThis is an astonishing magnetic system called Halbach’s network or magic cylinder. This assembly of magnets creates a dense and homogeneous magneticLire la suite
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Human are sensitive to static magnetic fieldsSome will say that they have always known it, others will find it hard to believe it… But today, the facts are here : without even being aware of them, we wouldLire la suite