Piet Mondrian painted the same tree in "The gray tree" (left) and "Blooming apple tree" (right). Viewers can readily discern the tree in "The gray tree" with a branch diameter scaling exponent of 2.8.
Claus Mattheck is constantly amazed by what trees have to teach us about the world around us. The physicist at the Karlsruhe Institute of Technology studies the shapes that trunks and leaves take, and ...
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