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Zoe Walker——Studied at the University of Tokyo, Lives in Tokyo, Japan.
This alignment is damaged over time, principally as the result of heat and stray electromagnetic fields, and this weakens the level of magnetism. The process is very slow, however: a modern samarium-cobalt magnet takes around 700 years to lose half its strength.read more >>+119962023-04-26 00:53:42
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