Abstract
MR. S. EVERSHED read an important and valuable paper on permanent magnets to the Institution of Electrical Engineers on March 19. The paper gives the results of many years' research, and ought to prove of immediate value in improving the quality and cheapening the cost of high-grade permanent magnets. In 1616 Barlowe wrote concerning the medieval art and mystery of magnet making- “The compass needle, being the most admirable and useful instrument in the whole world, is so bungerly and absurdly contrived as no other.” Although the permanent magnet has become an indispensable adjunct of modern engineering, yet industries rooted in tradition are generally backward, and magnet making is no exception.
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Permanent Magnets. Nature 115, 514–515 (1925). https://doi.org/10.1038/115514b0
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DOI: https://doi.org/10.1038/115514b0