The Golden Mean

The Golden Mean is a ratio that is present in the growth patterns of many things--the spiral formed by a shell or the curve of a fern, for example. The Golden Mean or Golden Section was derived by the ancient Greeks. Like "pi", the number 1.618... is an irrational number. Both the ancient Greeks and the ancient Egyptians used the Golden Mean when designing their buildings and monuments.

http://galaxy.cau.edu/tsmith/KW/golden.html

The Golden Mean (or Golden Section), represented by the Greek letter phi, is one of those mysterious natural numbers, like e or pi, that seem to arise out of the basic structure of our cosmos. Unlike those abstract numbers, however, phi appears clearly and regularly in the realm of things that grow and unfold in steps, and that includes living things. The decimal representation of phi is 1.6180339887499... .

http://www.vashti.net/mceinc/golden.htm

 

http://goldennumber.net/

Phi:  The Golden Number

http://www.mcs.surrey.ac.uk/Personal/R.Knott/Fibonacci/phi.html

The Golden section ratio: Phi

http://www.akasha.de/~aton/PENROSEtile.html

THE PENROSE TILINGS & the GOLDEN MEAN Towards Hyperdimensional Intergeometry

http://www.archdome.com/goldenmean.html

Observe the gentle curves of nature. They are based on a mathematical proportion called the Golden Mean. The Golden Mean goes on forever and ever. The whole universe is based on that mathematical proportion . . . your body, the fish, the trees, the galaxy, tornadoes and the flow of wind and water...

http://jwilson.coe.uga.edu/emt669/Student.Folders/Frietag.Mark/Homepage/Goldenratio/goldenratio.html

Phi: That Golden Number

http://www.intent.com/sg/

Sacred Geometry Home Page by Bruce Rawles

http://home.dmv.com/~vincent/

Sacred Geometry Discovery

http://goldennumber.net/geometry.htm

Phi and Geometry

http://www.dromo.com/fusionanomaly/goldenmean.html

 

http://home.att.net/~vmueller/prop/theo.html

Golden Section or Golden Mean, Modulor, Square Root of Two

http://www.floweroflife.org/spiral01.htm

Experiencing Sacred Geometry without Intellectually Understanding It

http://www.mcs.surrey.ac.uk/Personal/R.Knott/Fibonacci/fib.html

Fibonacci Numbers and the Golden Section

http://www.mathcad.com/library/Constants/gold.htm