![Add This Bottle to Your Zombie Apocalypse Kit](https://hight3ch.com/wp-content/uploads/2014/12/add-this-bottle-to-your-zombie-a.jpg)
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.