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The earliest use of magnets to effect so many peoplewas probably the magnetic compass. The magnetic compass has a needle suspendedon a pin; one end of the needle is magnetically charged. As a result thisend always points to magnetic north so a person can navigate his course.
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. Future uses of magnetism are sure tocome, and it will probably greatly surpass all of the uses known today. Magnetos are devicesthat use magnets to help produce an alternating current, because they havethis property they are used in transformers, solenoids, AC/DC motors, andgenerators as well. There arealso magnets in everyone’s car. Some speakersfor example have a magnet at the base to help produce sound.
In retrospect, magnets have benefited the populationof the world greatly. Spark plugs have magnetos in them, whichhelp run a four-cycle internal-combustible engine.
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