A lightbulb has been illuminating a firehouse in Livermore, CA continuously for more than 100 years. Known as the Centennial Light, the hand-blown carbon filament lightbulb has only been turned off a handful of times. The bulb is now attached to a generator to minimize future power disruptions. To see for yourself, check out this 24-hour live web feed of the bulb.
As unlikely as it may seem, the Centennial light is not the only lightbulb that has been burning for an improbably long time. The Palace Theater lightbulb in Fort Worth, TX, has been burning almost as long. Theories as to why these lightbulbs could last so long include that these bulbs have a particularly perfect vacuum seal, that the lights have been turned on and off minimally and that the bulbs are powered at low wattage.
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