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    tharris's Avatar
    tharris Posts: 1, Reputation: 1
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    #1

    Jun 30, 2010, 05:54 AM
    What makes a light bulb turned blue after is blows out
    My light bulbs in my walking freeze blow out. After it blow out it turned blue inside. Why did it do that?
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
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    #2

    Jun 30, 2010, 06:50 AM
    When a lamp burns out, the tungsten filament evaporates, and is deposited on the inner wall of the lamp.
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