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The incandescent lightbulb was the first lightbulb ever made. The incandescent lightbulb was invented by Thomas Edison.
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The fluorescent lightbulb was the second lightbulb created invented by Cooper Hewitt in 1903. It works by ionising water vapour in a glass tube. This makes electrons in the gas emit photons at UV frequencies.
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In 1907, a British experimented found that when a potential of ten volts was applied to a carborundum crystal it would emit a yellow light.
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Nick Holonyak Jr developed the first light emitting diode.
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