Degaussing
Process of decreasing or eliminating a remnant magnetic field
Nº Q1345036 ★★★
Rare · Knowledge
Degaussing
Process of decreasing or eliminating a remnant magnetic field
Degaussing, or deperming, is the process of decreasing or eliminating a remnant magnetic field. It is named after the gauss, a unit of magnetism, which in turn was named after Carl Friedrich Gauss.
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From Wikipedia
Degaussing, or deperming, is the process of decreasing or eliminating a remnant magnetic field. It is named after the gauss, a unit of magnetism, which in turn was named after Carl Friedrich Gauss. Due to magnetic hysteresis, it is generally not possible to reduce a magnetic field completely to zero, so degaussing typically induces a very small "known" field referred to as bias. Degaussing was originally applied to reduce ships' magnetic signatures during World War II. Degaussing is also used to reduce magnetic fields in tape recorders and cathode-ray tube displays, and to destroy data held on magnetic storage.
Text: Wikipédia, CC BY-SA 4.0. · Image: USN (Public domain) ·
