Why are light bulbs made from glass?
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An incandescent light bulb contains a thin wire filament (usually tungsten) that glows hot when an electric current is run through it. ... A glass bulb, then, is used to keep oxygen away from the filament. While a vacuum will work, any inert gas that inhibits combustion will also work.
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An incandescent light bulb contains a thin wire filament (usually tungsten) that glows hot when an electric current is run through it. ... A glass bulb, then, is used to keep oxygen away from the filament. While a vacuum will work, any inert gas that inhibits combustion will also work.
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