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for the subject:

Magnetism

Scholars who research "Magnetism" look at a class of physical phenomena that are mediated by magnetic fields.

Diamagnetism, Paramagnetism, Ferromagnetism are a few categories of "Magnetism".

Some motivations are to learn how forces are attracted to each other.

Alexander Neckam, Peter Peregrinus de Maricourt are some authorities of "Magnetism".

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