English: The Fibonacci spiral, starting with 1mm square, building out to 144mm square, following a Fibonacci sequence in scale: 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144. The The Fibonacci spiral can be applied to measuring the incremental turns of a nautilus shell, the spiral arrangement of seeds in a sunflower and other natural systems of organization.
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