Livermore Centennial Light Bulb (Mythbusters, December 2006)

The Centennial Light is a four-watt, hand-blown, carbon-filament, bulb manufactured in Shelby, Ohio, in the late 1890s and has been lit in Livermore, CA, more-or-less continuously since 1901 (Wikipedia).

Live web cam (http://www.centennialbulb.org/cam.htm)
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