"Hokusai Meets Fibonacci Golden Ratio" by Ars Brevis This is an example of the golden ratio. The wave creates the curved effect which is pleasing to the eye. It has a rhythm to it, like you are counting up to the curve of the wave.
db – Little Spider, c. 1940 by Alexander Calder. Alexander Calder’s art centers around the movement of objects in space, and his elegant mobile sculptures made him one of the most important artists of the century.