SOLAR - Super-efficient solar-energy technology: 'Solar steam' so effective it can make steam from icy cold water

Scientists have unveiled a revolutionary new technology that uses nanoparticles to convert solar energy directly into steam. The new "solar steam" method is so effective it can even produce steam from icy cold water. The technology's inventors said they expect it will first be used in sanitation and water-purification applications in the developing world.

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http://www.sciencedaily.com/releases/2012/11/121119140627.htm