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degaussing

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degaussing

Removal of magnetism from a device. The term is usually used in reference to colour monitors and other display devices that use a cathode-ray tube (CRT). External magnetic forces, such as the Earth's natural magnetism or a magnet placed close to the monitor, can cause distorted images and colours.

In World War II, ships were degaussed to prevent them from detonating magnetic mines. This involved encircling each ship with a conductor, through which an electric current was maintained.

Most monitors automatically degauss the CRT whenever they are switched on. In addition, many monitors have a manual degauss button that performs a more thorough degaussing of the CRT.



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? Mentioned in ? References in periodicals archive
 
However, the firm's imaginative schemes for a History and Science Museum in Charleston (design completed 1998) and the Degaussing Office Building (design completed 2001) show the versatility of the firm's work, which responds to a given setting with strong and memorable form.
A newer Orleans: six proposals by Artforum International
In the destruction business, one may need to go as deep as physical hard drive destruction capability--meaning shredding, not merely drilling holes in platters or degaussing.
Going high-tech: if you aren't already destroying electronic media, ... by Rohan, Rebecca / Recycling Today
Most of today's high-capacity tapes cannot be erased by degaussing (waving a magnet over the tape to scramble the metallic particles on the tape).
Where have your tapes been? by Harada, Rich / Computer Technology Review
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