Seashell Spiral Close-up
by Dawna Moore Photography
Title
Seashell Spiral Close-up
Artist
Dawna Moore Photography
Medium
Photograph - Nature Photography
Description
When one thinks of spirals in nature, seashells immediately come to mind. These spirals are logarithmic, the distance between the turns increase as the shape becomes larger.
Logarithmic spirals were called spira mirabilis ( marvelous spirals) by the scientists who first studied them. Besides seashells, this shape is also found in fiddlehead ferns in spring time, the arrangement of seeds in sunflowers and the scales of pinecones. Not all spirals in nature are static. Galaxies and tornadoes follow this shape, as do hawks in their approach to prey in flight. (Flandrum Hill)
Uploaded
June 9th, 2013
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