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Grist
Feb 5, 2016, 8:07 pm205 ptsWe’ve found some creative uses for the sun’s rays over the years — think sundials, shadow photography, and good old-fashioned sunbathing. But here’s one you may not have seen before: a solar-powered water purifier designed for household use. The filtration system, called Solvatten, is a two-in-one:…
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