Phi Φ The Golden Mean

Phi is found in:
• growth patterns of plants,
• your body; from limbs to DNA,
• architecture from the Pyramids of Giza to the Parthenon,
• cosmological phenomena,
• all through our History of Art and Civilization from proportions of a Stradivarius and the Mona Lisa to your Credit Card and the Facebook login page.

1.618033988749894848204 : 1 = 1 : 0.618033988749894848204

Links:
•GoldenNumber.net
•MathIsFun.com
•Wikipedia