http://www.treehugger.com/gadgets/stone-spray-3d-printing-architecture.html
Join the many thousands by being better informed through reading daily news and journal articles to be discovered at http://woohs.blogspot.com .... Enjoy a series of regular sketches and photos by Woohs' ... RT and share a relatively safe way to sample critical and thought provoking writing about what's happening .... worldwide. Prepare to think differently about your world.