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A permanent magnet is always magnetic. It has an invisible magnetic field. Only certain materials, such as iron, feel a magnetic force. Permanent magnets can come in lots of different shapes and ...
Not electromagnets, but those permanent magnet fixtures like the ones that ... As it turns out, the ability to nullify the powerful magnetic field from a bunch of rare earth permanent magnets ...
Even today, it remains the most powerful permanent magnet in the ... coercivity — a measure of a magnet’s resistance to other strong magnetic fields,” explains Sagawa.
NASA has been monitoring a strange anomaly in Earth's magnetic field: a giant region of lower magnetic intensity in the skies above the planet, stretching out between South America and southwest ...
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Scientists develop high-performance permanent magnet without expensive heavy rare earth elementsThis pioneering technology marks the world's first achievement in this field. The findings are ... However, conventional permanent magnet manufacturing processes have been heavily dependent ...
Superconductors aside, these devices are pretty much all operating in the same way; an object with a permanent ... magnet can not only be levitated, but locked in place using a rotating magnetic ...
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