Pythagorean
Mysteries....
Penrose Tilings, the
Golden Rectangle, and the Pentagram share geometric properties having to do
with the ratio "phi":
j = (1+ 51/2)/2 = 1.618....
Examples of Penrose
tilings are shown in the background images. While the golden rectangle has the
following shape (which is inscribed internally to indicate
its iterative geometric properties):
Golden
Rectangle
A pentagram you've
seen (the red star between white and yellow pentagons):
Pentagram