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World Record Thread
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Posted 2002-05-13, 01:35 AM in reply to
CrOnIc-KiLlA
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"World Record Thread"
While known as a painter, sculptor, architect, and engineer, Leonard da Vinci was the first to record that the number of rings in the cross section of a tree trunk revealed its age. He also discovered that the width between the rings indicated the annual moisture.
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