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  1. Watch Video - How to make filthy water drinkable

    by , 05-15-2014 at 02:20 AM
    How to make filthy water drinkable

    Too much of the world lacks access to clean drinking water. Engineer Michael Pritchard did something about it — inventing the portable Lifesaver filter, which can make the most revolting water drinkable in seconds. An amazing demo from TEDGlobal 2009.