Phi is a strange number that appears everywhere in nature as a ratio. There are a lot of examples. I think one is the distance from your shoulder to your elbow divided by the distance of your elbo to your wrist. This same number is found as a ratio everywhere in nature. Josh can probably tell you more about it.

Phi is a strange number that appears everywhere in nature as a ratio. There are a lot of examples. I think one is the distance from your shoulder to your elbow divided by the distance of your elbo to your wrist. This same number is found as a ratio everywhere in nature. Josh can probably tell you more about it.

Phi is a strange number that appears everywhere in nature as a ratio. There are a lot of examples. I think one is the distance from your shoulder to your elbow divided by the distance of your elbo to your wrist. This same number is found as a ratio everywhere in nature. Josh can probably tell you more about it.

Yea, you hit it dead on pretty much. Phi is the golden ratio= ((square root of 5) + 1)/2 (I have no clue how to display this in the tex code..

Approximately equal to 1.618034, the 'divine proportion' is a geometric proportion that was discovered long ago, exists throughout nature, and not much is known about its significance. It can be derived via 3 ways (I think.. geometry, math, and through the Fibonacci sequence are the only ways I know of). It is very interesting how it is derived through Fibonacci. The Fibonacci sequence is 0,1,1,2,3,5,8,13,21,etc. (add the previous value to the current to get the next). Any term divided by the previous term in the sequence is approximately equal to phi (3/2=1.5, 21/13=1.615, etc.). Basically, the limit as the sequence approaches very high numbers, the sum of one term/previous term=phi

Phi is prominent in the human body as sk8 mentioned (another one is one's height divided by the distance from the ground to one's bellybutton. Many different flowers and plants have their petals arranged in a manner that represents phi.. Phi even appears in our dna, many mathematical graphs (population, exponential, some sinusoidal, etc.). It is also found in the bible and in history.. A very interesting topic of which we know little about.. I find it very intriguing :)

A recent study done by a think tank hired by Canadian airline companies has come to the conclusion that if the airlines charged less money then people would buy more ...