demagnetizing

Hammering a magnet can result in demagnetizing it because the molecules lose their north-south alignment and get arranged with their poles placed randomly in various directions.

Do you find me attractive? 2008

When a magnet is heated in a hot flame, it will result in demagnetizing it because the molecules lose their north-south alignment and get arranged with their poles placed randomly in various directions.

Do you find me attractive? 2008

They are asked to get in a fight and lose, and then they start pranking the world, demagnetizing videos, getting birds to poop on brand new cars, and other mischievous acts.

FIGHT CLUB 10th Anniversary Edition Blu-ray Review – Collider.com 2009

Early in the Second World War a young, self-taught electronics engineer was taken on by the Admiralty to work on demagnetizing warships, to protect against magnetic mines, and he stayed on to work in the scientific civil service.

Betrayal Annan, Noel 1987

The apparatus, Fig. 1, Plate XI, consists essentially of the following parts: An endless chain working in a vertical path and provided with lugs; a steel anvil on which the charge of explosive is held by a steel stamp; a demagnetizing collar moving freely in vertical guides and provided with jaws placed so that the lugs of the chain may engage them;

Transactions of the American Society of Civil Engineers, vol. LXX, Dec. 1910 Federal Investigations of Mine Accidents, Structural Materials and Fuels. Paper No. 1171 Herbert M. Wilson

Moreover, the direction of the secondary current will be opposite to that of the primary, because the magnetic circuits which are opened up by the primary current in magnetizing the core, or which are closed or collapsed by it in demagnetizing the core, will always cut the secondary coil in the direction proper for this result.

Scientific American Supplement, No. 711, August 17, 1889 Various

Then it starts to lose its magnetism and that feeds back a counter-emf which increases the demagnetizing current until it's saturated with opposite polarity.

Long Ago, Far Away Murray Leinster 1935

D, for the subsequent action of demagnetizing F and pulling the wire L out of the mercury in the cup H is the same on each occasion.

The Splash of a Drop 1884

Under a 2001 Assistant Secretary of Defense for Command, Control, Communication and Intelligence memorandum, there are only three acceptable ways to sanitize equipment hard drives: overwriting with software to release for reuse, demagnetizing or "degaussing" to render data unreadable, or physically destroying the equipment by force after overwriting or degaussing.

Government Computer News Current Issue 2010

Under a 2001 Assistant Secretary of Defense for Command, Control, Communication and Intelligence memorandum, there are only three acceptable ways to sanitize equipment hard drives: overwriting with software to release for reuse, demagnetizing or "degaussing" to render data unreadable, or physically destroying the equipment by force after overwriting or degaussing.

Government Computer News Current Issue 2010