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Practical applications of dynamic symmetry (1920)

Hambidge, Jay, 1867-1924 · New Haven : Yale University Press · leaf 107

An illustration from Practical applications of dynamic symmetry, 1920, leaf 107
ithout its cover, is the .809 ratio. AC, or the area of the cover, is the .382 shape. The point H is the eye of the whirling square rectangle AJ. Consequently, the area of half the foot is a root-five rectangle and the whole area of the foot is equal to two such shapes or a root-twenty rectangle. F… … Fig. 30. Fig. 3^. R. F. Pyxis in the Boston Museum. (Measured, drawn and analyzed by L. D. Caskey.) Nolan amphora 10.184, Boston Museum, has an area ratio 1.691, Fig. 4. This is a shape which appears in the angle column adjustment of the Parthenon. AB and AC are squares. CD is a root-five…

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