Electromagnetic Force

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Electricity and magnetism are two different aspects of one force. This force is called the electromagnetic force. Electricity can be generated by rotating coils of wire in the vicinity of a magnet. When a force moves objects toward and away from each other it is called electricity. When it comes to magnets, Earth and other planets behave like giant magnets. The first know magnets were iron materials. If one piece of the iron was placed in contact with the other, it attracted it. In ancient times men knew of a special kind of rock that could pull other rocks of the same kind and pieces of iron toward itself. Such rocks were called lodestones. In modern times man uses the same force exerted by the ancient lodestones to generate electric power, to store information in computers, and to study the secrets of the universe. The force is called magnetism, and objects that exert it are known as magnets. By the end of the 19th century, all the elements were known to have some magnetic property. Many scientists have contributed to the electromagnetic force, either through researching electricity, magnetism or both. Benjamin Franklin researched the electrical charge through electrical experiments. Charles Augustin de Coulomb discovered similarities of electrical force and gravitational force. Michael Faraday experiments helped link electricity and magnetism. All three made great contributions to the understanding of the electromagnetic force. Benjamin Franklin work was considered on of the pioneers of electrical science. Franklin began his experiments in 1746 with a study of electricity genetaed by friction. Franklin use the steps of scientific method to complete his research. He was convinced that all electrical phenomena could be explained by the transfer of a single electrical fluid form one object to another. Through his obervation the discovered that objects could have an excess of a deficiency of this fluid. He named this two situations positive and negative....
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