Three is represented by the number of bones in each leg and arm and the three main parts of the hand: wrist, metacarpus and set of fingers consisting of three phalanxes, main, mean and nail. Then there are pairs: arms, legs, eyes, ears. Simple observation confirms that Fibonacci numbers are represented by many human parts: one trunk, one head, one heart, etc. The majority of organs in the human body maintain their overall shape and proportions as they grow (Sacco). The progression of the Fibonacci numbers and ratio are well suited to describing organic growth in the human body because they have the properties of self-similarity and of “gnomonic growth ” that is, only the size changes while the shape remains constant. For example, the cochlea of the ear is a Fibonacci spiral as is the spiral of the umbilical cord. The same phenomena of Phi that is found in nature’s objects from snail shells to the spirals of galaxies is found also in the design and structure of the human body. (Previous Section: Fibonacci in Space and Geography) Buy Now on Amazon

All citations are catalogued on the Citations page. This is an excerpt from Master Fibonacci: The Man Who Changed Math.

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