Phi, the Golden ratio, which is approximately 1.6180339887... is the number which can be found everywhere around us, around all the Universe.
Other related or similar terms:
Golden section
Golden rectangle
Fibonacci numbers, series or sequence (1, 1, 2, 5, 8, 13, 21, 34, 55, 89, 144...)
Golden angle (~137,5°)
Mathematical equation:
Φ=(1+√5)/2
1,618-1=0.618
0,618*1,618=1
For more information:
http://goldennumber.net/
http://en.wikipedia.org/wiki/Golden_r...
http://en.wikipedia.org/wiki/Golden_a...
http://en.wikipedia.org/wiki/Fibonacc...
A bit shorter cutted version of this video: http://www.youtube.com/watch?v=-Ibc8s...
Some more video links:
http://www.youtube.com/watch?v=2zWivb... - The golden mean
http://www.youtube.com/watch?v=SD-Ziq... - A Night of Numbers - Phi's The Limit (BBC FOUR)
