Abstract
THE appearance of this excellent monograph is opportune. During the past decade there have been immense advances in the quality of magnetic materials, both for cores of special transformers, electro-magnets, and particularly for permanent magnets, leading to greatly improved instruments, methods of measurement, and components generally. In one field alone, that of recording sounds on wire or powder, the whole process of magnetization had to be re-investigated, with a resulting new idea in the selection of material, leading to the sudden improvements which are about to be made commercial.
Magnetic Materials
By Dr. F. Brailsford. (Methuen‘s Monographs on Physical Subjects.) Pp. ix + 156. (London: Methuen and Co., Ltd., 1948.) 6s. net.
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H., L. Magnetic Materials. Nature 162, 513 (1948). https://doi.org/10.1038/162513b0
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DOI: https://doi.org/10.1038/162513b0