Dynamic Symmetry

Dynamic symmetry is a proportioning system emphasised by the Canadian writer and illustrator Jay Hambidge (1867-1924).
The system uses a number of dynamic rectangles based on ratios such as
√1=1, √2=1.4142, √3=1.732, √4=2, √5=2.236,
the golden ratio φ=1.618...,
√φ = 1.272..., φ2 = 2.618... .
From the study of phyllotaxis and the related Fibonacci sequence
1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, ...
Hambridge postulated substitute series such as
118, 191, 309, 500, 809, 1309, 2118, 3427, 5545, 8972, 14517, etc.

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