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Thank magnetic fields. Magnetic fields have completely changed and improved our way of life, compared to just 200 years ago. We have electric motors everywhere, in refrigerators, fans, elevators, cars, computers, and toys. \u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eThis book shows that magnet and motor experiments have real uses and applications. \u003c\/strong\u003eIt should not be hard for the reader to realize how important motors and generators are to modern life styles (starting your car, playing DVDs, electric tools, dishwashers, air conditioners, elevators, household water pressure). \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eElectric motors are possible because magnetic fields create mechanical forces\u003c\/strong\u003e, like a vacuum cleaner sucking up dirt or a kid spinning a spinning wheel at a playground. Magnetic fields are created from electric current, which allows motors and mechanical spinning. 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