$8.00 Golden Section - squares Postcards (Package of 8)

Golden Section - squares Postcards (Package of 8)

Made by Ataahua
on May 20, 2007 at 3:28 AM

The Golden Ratio, phi, 1.61803... expressed as the ratio of the side to the diagonal of a pentagon, used to generate "whirling triangles" and hence the spiral shape of the nautilus shell.

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