A fractal is a mathematical object which has fine scale structure on all scales - so that no matter how much you magnify it there is still detail too small to see. Usually the structure on a small scale is similar, but not identical, to the large scale structure. Show Me.
Fractals are surprisingly easy to construct. Spirofractal uses three main ways to construct fractals, which you can find out more about in the various rooms of this part of the gallery.