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A New Idea: Blue Energy
What do you get when saltwater and fresh water meet? A clean, renewable source of power called blue energy.
"The blades stutter a bit at first, but after a couple of halting starts, the tiny propeller on the miniature windmill is soon turning at top speed. The fuel: a tank containing saltwater and fresh water. "Here's your proof," says Jan Post, a Ph.D. student at the Dutch water technology research institute Wetsus. "Blue energy works.". "
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