People, I thought this was neat: Build a Tree Ring Timeline:
http://www.pbs.org/wgbh/nova/vikings/treering.html NOVA Online | The Vikings | Build a Tree-Ring Timeline www.pbs.org The basis of dendrochronology lies in a tree's unique pattern of growth rings. The rings form a kind of fingerprint-actually, with its irregularly spaced lines, the pattern bears a remarkably close resemblance to a DNA fingerprint. ... http://nature-web-network.blogspot.com/ http://primalforests.ning.com/ http://www.facebook.com/profile.php?ref=profile&id=709156957
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