The difference between PHI and Pi is much more than just 'H'. The PHI number, represented by the number 1.618 is very important in the art. PHI is generally considered the most beautiful number in the world. This number comes from the Fibonacci series - a famous progression not only because the sum of the adjacent terms was equivalent to the next term, but because the quotient of the adjacent terms had the terrifying property of gradually approaching the number 1.618, the PHI!
Despite the seemingly mystical mathematical origins of PHI, the surprising aspect of PHI was its role as a basic component in nature. Plants, animals, and even humans - all had dimensional properties that fit with astonishing accuracy at the PHI to one ratio. The unipresence of PHI in nature is beyond coincidence, and so the ancients assumed that the PHI number must have been predetermined by the Creator of the universe. Early scientists solemnly announced that the number one comma six one eight was the Divine Proportion.
1) If you divide the number of female bees by the number of male bees in any hive in the world, you will always get the same number: PHI, 1,618.
2) A sunflower flower core. Sunflower seeds grow in opposite spirals. The ratio of each rotation to the next is 1.618, PHI.
Leonardo Da Vince was the first to demonstrate that the human body is literally made of components whose proportional ratios always equate to PHI.
3) If you divide the distance from the top of the head to the ground, then divide the result by the distance from the navel to the ground, you will get 1.618, PHI.
4) The distance from one shoulder to the fingertips divided by the distance from the elbow to the fingertips. PHI, 1.618.
* Curiosity submitted by user Leonardo Magalhães.