The Mysterious Case of the 113-Year-Old Light Bulb
priceonomics.comThe Centennial Light, a bulb that’s reportedly been burning for 113 years
In the United States, the average incandescent light bulb (that is, a bulb heated with a wire filament) has a lifespan of about …
via Tumblr http://ift.tt/1rAliCZ September 30, 2014 at 07:22AM
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