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Well-Known Member
Another interesting one.
http://www.sciam.com/article.cfm?chanID=sa006&articleID=0003014B-9D06-1E8F-8EA5809EC5880000
http://www.sciam.com/article.cfm?chanID=sa006&articleID=0003014B-9D06-1E8F-8EA5809EC5880000