http://en.wikipedia.org/wiki/Image:Golden_ratio_line.png

In Architecture (Partenon)

Le

Cor

busi

erM

odul

or

Notre Dame

Paris

The Sacrament of the Last Supper Salvador Dali

Leonardo

Da Vinci

1

1 1/1 1

2 2/1 2

3 3/2 1.5

5 5/3 1.666667

8 8/5 1.6

13 13/8 1.625

21 21/13 1.615385

34 34/21 1.619048

55 55/34 1.617647

89 89/55 1.618182 ~

http://www.seephi.org/blocks.php

In Nature

SunFlower

There are 13 notes in the span of any note through its octave.A scale is comprised of 8 notes, of which the 5th and 3rd notes create the basic foundation of all chords, and are based on whole tone which is 2 steps from the root tone, that is the 1st.