Hambidge, Jay, 1867-1924 · New Haven : Yale University Press · leaf 56
4-o DYNAMIC SYMMETRY Fig. 31. … Fig. 31a. Later, in XIII, 18, the rectangular relationship is more clearly shown in a root-five rectangle. The Euclidean diagram of the 1 8th proposition is peculiarly interesting in the light of dynamic symmetry because it suggests what may have been the Greek method of constructing the dynamic…
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