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Self similarity refer to fractal structures in nature known as Mandelbrot's fractal geometry.If one observe a coliflower,one can see the whole structure and a branch of it looks similar but differ only in scale. That is why any fractal structures were being able to create many smallar fractal strucuture.
Self-similarity: Coliflower,forest,crowd of people or flock of birds,chaos,clouds,blood vessels
by ppvv June 28, 2009