Science explains ancient copper artifacts
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Science explains ancient copper artifacts
Northwestern University researchers ditched many of their high-tech tools and turned to large stones, fire and some old-fashioned elbow grease to recreate techniques used by Native American coppersmiths who lived more than 600 years ago.
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Tags: Mineral, Copper, Science
Most Recently Shared on June 13, 2011 at 9:00 pm By:
Science explains ancient copper artifacts - http://is.gd/NC6nVw
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