Feynman's explanation of where a tree gets its mass starts here: http://www.yout... | Hacker News

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BobbyH on July 2, 2010 | parent | context | favorite | on: Where does a tree get its mass? Richard Feynman ex...

Feynman's explanation of where a tree gets its mass starts here: http://www.youtube.com/watch?v=N1pIYI5JQLE#t=2m12s

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