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March 28, 2012 12:25 pm PDT
Original Link: http://feeds.boingboing.net/~r/boingboing/iBag/~3/Tt5yV7PlDRQ/turning-on-a-100-year-old-ligh.html
Turning on a 100-year-old light bulb
Incandescent lights work by turning heat into light. You run an electric current through a filament, the filament heats up, and as it does, it starts to glow. The basic element has been around since 1809. The trick is finding material for a filament that will get hot enough to glow, but won't destroy itself [...]Original Link: http://feeds.boingboing.net/~r/boingboing/iBag/~3/Tt5yV7PlDRQ/turning-on-a-100-year-old-ligh.html
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