A light bulb works by passing an electric current through a thin filament, usually made of tungsten, which heats up and produces light as a result of incandescence. In incandescent bulbs, the filament is enclosed in a glass bulb filled with an inert gas to prevent oxidation. In contrast, fluorescent bulbs use gas and a phosphor coating to produce light through a different mechanism involving ultraviolet light. LED bulbs generate light through electroluminescence, where electrons in a semiconductor material release energy in the form of light when they recombine with holes.
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A light bulb is not a source of electricity. It is a device used to harness electricity to provide light.
There is no such thing.
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The book Edison the Firefly and the Invention of the Light Bulb is copyright 2008.
have old light out of machine but can't get new blub in place
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