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        "http://www.w3.org/2000/01/rdf-schema#comment" : [ "Magnets exert forces and torques on each other due to the complex rules of electromagnetism.  The forces of attraction field of magnets are due to microscopic currents of electrically charged electrons orbiting nuclei and the intrinsic magnetism of fundamental particles (such as electrons) that make up the material.  Both of these are modeled quite well as tiny loops of current called magnetic dipoles that produce their own magnetic field and are affected by external magnetic fields." ] ,
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