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**Golden Ratio in Human Body**

The Fibonacci sequence terms are the sum
of the preceding two numbers. But when you divide one number in the series by
the number before it, you get numbers very close to one another. This number
becomes fixed after the thirteenth term. This fixed number (1.618) is known as
the Golden Ratio. In this video we learn that we can actually measure what
humans find as "aesthetically pleasing" with the human body. Artists,
sculptors and designers like Leonardo di Vinci and Le Corbusier use those
proportions in their work. The Golden Ratio was also used architecture such as
in the Great Pyramids in Egypt, the Parthenon in Greece. The Golden Ratio can
be found in a myriad of surprising ways in the human body: distance from the
fingertips to the elbow by the wrist to the elbow, the distance between the
navel and the top of the head by the distance of the shoulder line to the top
of the head, the total width of the front two teeth over their height, the
length of face over the width of face, the length of mouth over the width of
nose, the width of nose over the distance between nostrils(weird, but cool!) In
1985-1987 study, American physicists were able to prove the existence of the
Golden Ratio in our lungs. The asymmetrical structure of the bronchi (one
branch is shorter than the other) allows for a Golden Ratio to occur.

**The Beauty of the Gold Ratio**

As mentioned before, the Golden Ratio was present in
both Egyptian and Greek cultures but it can also be founded in our modern
culture such as United Nations building, the width of the building compared
with the height of every ten floors is a

*Golden Ratio**,*which is also known as Divine Ratio, the Golden Mean, the Golden Number, and the Golden Section. The Fibonacci Sequence is an infinite sequence, it will go on forever and ever. The ratio of the consecutive terms gets closer to the*Golden Ratio*of 1.618. But the ratio of Fibonacci number to preceding number will never reach Nth Fibonacci term, it is always approaching the one particular constant but will never get there, so sad L This Golden Ratio has shown up all over history and has had a great deal of influence on what humans find aesthetically pleasing. But here are some cold hard facts: Phi was first understood and used by the ancient mathematicians in Egypt due to its frequent appearance in geometry. It was later given its name Phidias (500BC-432 BC), a Greek sculptor and mathematician, who studied Phi and used phi in his work for example, the statue of the goddess Athena in Athena, and the state of god Zeus in Olympiad. The symbol came from mathematician in 1900’s named Mark Barr, who represented the*Golden Ratio*by using a Greek symbol Φ.**Nature’s Number: 1.618033988…**

Fibonacci was a man known as Leonardo of Pisa (like
the Leaning Tower of Pisa). Phi, which comes from his Fibonacci sequence, is
completely underrated in the world with everybody’s fascination with pi,
infinity, etc. The Golden Rectangle which is broken up into two parts; one part
is a square with a length and width of one and the other part is a rectangle,
length is 1 and width is 0.618 which gives us phi (golden ratio) 1.618. This is
present in the Greek’s Parthenon, Mona Lisa, and various other paintings.
Leonardo da Vinci was convinced the Golden Ratio (1.618) defined perfect
proportions within the human body. Within the Golden Rectangle, you can get the
Spiral of Archimedes. This spiral is found in snails, in crustaceans and so on!

**Golden Ratio in Art and Architecture**

Le Corbusier at first wasn’t very…fond of the Golden
Ratio. He was completely adamant to it. Before 1927, it is shown in his work
that he never used the Golden Ratio. His fascination with aesthetics and such
came from his curiosity but it also came from his search for a standardized
proportion. From this came the Modulor, a new proportional system based on the
Fibonacci series (1,1,2,3,5,8,13), providing, “a
harmonic measure to the human scale, universally applicable to architecture and
mechanics.” The Modulor was
developed between 1943 and 1955, where mathematics was significant in showing
people universal truths. It was also a time where there was an increasing need
for a mass production, the Modulor was to be that standard model. Fun fact: the
entire building "Unite d'" was based on the Modulor proportioning
system. Also the musical scales are based on Fibonacci numbers; the piano keyboard of C to C above of

**13**keys has**8**white keys and**5**black keys, split into groups of**3**and**2.**Musical instruments design such as the violin are also based on phi!**Personal Reflection**

From my watching and my reading of the Fibonacci
Sequence and the Golden Ratio, I have just learned so much more about it. The
last time I read about phi was in Dan Brown’s

__The Da Vinci Code__. It was a book I enjoyed thoroughly and after reading it, I was more intrigued by phi but never really researched it until now. I’m still awestruck by how the Golden Ratio can appear everywhere and anywhere, even in snails! Those little suckers that just crawl by unappreciated have the Spiral of Archimedes on their protection gear and we aren’t even aware of it half the time! I loved learning more about how the Golden Ratio is present in architecture because again it’s another thing that goes by unnoticed. I had studied the Great Pyramids of Giza and the Parthenon in my AP Art History class but the Golden Ratio wasn’t mentioned in our study of the two pieces. After learning all of this, I know I’m going to catch myself glancing at people’s noses and nostrils and wonder if they have the Golden Ratio going on there.
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