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Clean Water In 20 Minutes?

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US Department of Energy's,
. . . SLAC National Accelerator Laboratory, and
. . . Stanford University,
. . . trying to kill bacteria in tainted water,
. . . have developed a  sun-activated device that kills
. . . 99.999% of bacteria, in just
. . . 20 minutes.

The rectangular device, the size of 1/2 postage stamp,
. . . when exposed to the visible part of the solar spectrum,
. . . kills all the bacteria,
. . . leaving nothing but pure water behind.

8-16-2016 Source:  Clean Water in 20 minutes?


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