Phi is the basis for the Golden Ratio
Mathematics or proportion, determined by Phi (1.618 …) was known to the Greeks as the "dividing a line in the extreme and mean ratio." It is also called the Golden Section, Golden Ratio, Golden Mean, and the Devine Ratio, and was used for the Fibonacci sequence.
In 1509, Luca Pacioli wrote a book that refers to the number as the "Divine Proportion," which was illustrated by Leonardo da Vinci. The Golden ratio was used to achieve balance and beauty in many Renaissance paintings and sculptures. Da Vinci himself used the Golden ratio to define all of the proportions in his Last Supper, as well as the Mona Lisa. Other artists who used the Golden ratio include Michelangelo, Raphael, Rembrandt, Seurat, and Salvador Dali.
Phi is more than an just a mathematical and physics term. It appears all around us in our daily lives. Phi is an interesting symbol in healthcare, mathematics, sciences, art, and nature. It is the perfect depiction of what we hope to accomplish with our products and work. The balance between science and nature.
The Golden ratio also appears in all forms of nature and science. Some unexpected places include:
Flower petals: The number of petals on some flowers follow the Fibonacci sequence. It is believed that in the Darwinian processes, each petal is placed to allow for the best possible exposure to sunlight and other factors.
Pinecones: The spiral pattern of the seed pods spiral upward in opposite directions. The number of steps the spirals take tend to match Fibonacci numbers.
Shells: Many shells, including snail shells and nautilus shells, are perfect examples of the Golden spiral.
Spiral galaxies: The Milky Way has a number of spiral arms, each of which has a logarithmic spiral of roughly 12 degrees. The shape of the spiral is identical to the Golden spiral, and the Golden rectangle can be drawn over any spiral galaxy.
DNA molecules: A DNA molecule measures 34 angstroms by 21 angstroms at each full cycle of the double helix spiral. In the Fibonacci series, 34 and 21 are successive numbers.
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