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Magnetism

Magnetism on Fotopedia

In physics, magnetism is one of the phenomena by which materials exert attractive or repulsive forces on other materials. Some well-known materials that exhibit easily detectable magnetic properties (called magnets) are nickel, iron, cobalt, gadolinium and their alloys; however, all materials are influenced to greater or lesser degree by the presence of a magnetic field. Magnetism also has other definitions/descriptions in physics, particularly as one of the two components of electromagnetic waves such as light.