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01-12-2016, 05:47 PM
US researchers say they have developed a technique that can significantly improve the efficiency of the traditional incandescent lightbulb.
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More... (http://www.bbc.co.uk/news/science-environment-35284112#sa-ns_mchannel=rss&ns_source=PublicRSS20-sa)
From http://start.westnet.ca News
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