Hambidge, Jay, 1867-1924, Yale University. Rutherford Trowbridge memorial publication fund · New Haven, Conn., and New York city, Yale university press; [etc., etc.] · leaf 49
, CD is .309, AC is i or unity, and AD is unity minus .309, or .691. This fraction .691, is the reciprocal of 1.4472, or a square plus a root-five rectangle. ED is this shape, the key to the Parthenon plan and many other Greek designs. It is a favorite shape for many vases. < "^ ^- { /\ /J \ \--_… … Fig. 8. The distance AB in Fig. 9, is the difference between 1.809 ^'^d 2, or .191, and this fraction multiplied by 2 equals .382, the reciprocal of 2.618. Therefore the area AD is composed of four shapes, two squares and two whirling square rectangles. Fig. 9.
Design · Vases, Greek
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