A light bulb revolution: CFLs and LEDs replace incandescent bulbs
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A light bulb revolution: CFLs and LEDs replace incandescent bulbs

Washington : DC : USA | May 14, 2012 at 3:03 PM PDT
Source: Washington Post
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Text Size The Washington Post We are witnessing a revolution...Not the information revolution playing out in Silicon Valley...Thomas Edison and English inventor Sir Joseph Swan independently produced the first reliable, affordable incandescent bulbs around 1880, and the invention dominated... FULL ARTICLE AT Washington Post
 
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