Gauss (unit)
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The gauss is a unit of measurement of magnetic flux density, B. The unit is part of the Gaussian system of units, which inherited it from the older centimetre–gram–second electromagnetic units system.
Carl Friedrich Gauß in 1828, aged 50 years old
Neodymium magnet
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A neodymium magnet is a permanent magnet made from an alloy of neodymium, iron, and boron that forms the Nd2Fe14B tetragonal crystalline structure. They are the most widely used type of rare-earth mag
Block of neodymium magnet
Left: high-resolution transmission electron microscopy image of Nd2Fe14B; right: crystal structure with unit cell marked
Neodymium magnets (small cylinders) lifting steel spheres. Such magnets can lift thousands of times their own weight.
Ferrofluid on a glass plate displays the strong magnetic field of the neodymium magnet underneath.