世界上有太多地方缺乏飲用水。工程師麥可．普立查作出了行動　﹣發明了可隨身攜帶的 Lifesaver 濾水瓶。它能在幾秒鐘內將骯髒污穢的水過濾成可飲用的水。TEDGlobal 2009 中非常神奇的示範。

 

With cutting-edge nanotech, Michael Pritchard's Lifesaver water-purification bottle could revolutionize water-delivery systems in disaster-stricken areas around the globe.