http://blog.newsweek.com/blogs/labnotes/archive/2008/08/26/becoming-a-real-life-caveman-for-science-of-course.aspxMetin Eren just spent three years in his lab living like a Neanderthal—or at least working like one. Starting with a specimen of a green sand silicate from the chalk cliffs at Seaton on the Devonshire coast, he used hammerstones to knock off flakes theenCommunityServer 2.1 SP2 (Debug Build: 2.18)