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First published at 09:04 UTC on July 30th, 2019.
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all the elements to make the chosen grade of magnet are placed into a vacuum induction furnace, heated and melted to form the alloy material, ground into tiny grains, pressed in a mould a magnetic field aligns them by their intrisic polarity then…

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CategoryEducation
SensitivityNormal - Content that is suitable for ages 16 and over
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