TEDTalks2009.8.4------Michael Pritchard：救命濾水瓶

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TEDTalks2009.8.4------Michael Pritchard：救命濾水瓶
TEDtalksDirector 於 2009-08-04 上傳

http://www.ted.com 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.