Abstract
ACCORDING to the naval correspondent of The Times,a conspicuous feature of the Queen Elizabethon her arrival at New York after her secret maiden voyage from the Clyde was a ‘girdle’ around her hull. This girdle is apparently the means of protection adopted against the magnetic mine. The girdle, supplied with electric current of the necessary strength and characteristics, sets up a magnetic field which, in association with the steel hull and other magnetic material of the ship, is such that magnetic mines laid at sea are not set off by the passage over them of a vessel so equipped. The apparatus is said to have been devised and developed by officers of one of H.M. naval establishments, with the advice and assistance of scientific men consulted for the purpose. It has been given the expressive name ‘de-gaussing girdle’, the aptness of which will be recognized by all with an elementary knowledge of magnetism.
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Countering the Magnetic Mine. Nature 145, 415 (1940). https://doi.org/10.1038/145415c0
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DOI: https://doi.org/10.1038/145415c0