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The history of Magnets and electromagnets.
Member rating: No Rating | Words: | Submitted: Thu Sep 18 2003
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Magnets and electromagnets have many uses, every electric motor, generator or transformer requires a magnetic field for it's operation. With the exception of a few special types, all use electromagnets. The magnets mounted on large cranes are used to lift heavy loads. Magnetism makes the generator supplying the electricity to your home work and the radio, telephone and most other electrical gadgets work. The properties of Magnetism were known to the Greeks as early as 700 B.C. It was found that a certain type of ore had the power to attract pieces of iron which were in it's vicinity. The discovery was made in a province called Magnesia, and the ore was given the name Magnetite after its place of discovery. The type of magnetite which exhibits magnetic properties is commonly known as Lodestone. Any material which exhibits these magnetic properties is called a Magnet. The first uses of magnetism...
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