“ ceramic water purifier (colloidal silver) low tech + cottage industry http://s189535770.onlinehome.us/pottersforpeace/?page_id=9 (read full comment) ”
Posted on September 13, 2010 at 8:59 PM EDT
The TR10
Our annual list of 10 technologies that could change the world. This year: Light-field photography. Solar microgrids. Crowdfunding. Facebook's Timeline. And more...
The Library of Utopia People Power 2.0
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