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Photograph of filament light bulbs. These light bulbs have an ultra-thin filament of tungsten wire and when electricity passes through the wire heats up to a white heat and glows. Dated 2014 -
Tungsten's Brilliant, Hidden History | American Scientist
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Why does an incandescent lightbulb filament get hot while the wire that goes to the bulb does not get hot although same current goes through both? - Quora
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Incandescent light bulb - Energy Education
