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- 주제분류
- 자연과학 >생물ㆍ화학ㆍ환경 >환경과학
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- 등록일자
- 2009.08.28
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.