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The Concept Map you are trying to access has information related to:
electricidad y magnetismo, electricity and magnetism, same force, 1861, eighteenth century, gravity, electrical & magnetic phenomena, two aspects, many mundane everyday experiences, flashlight, xerox machine copier, alessandro volta, lightning storm, magnets on refrigerator doors, radio and television, four equations, andre marie ampere, auto windshield wiper motor, james clerk maxwell, complete description, telephone