The golden ratio is an irrational number, defined as (1+√5)/2. The unique nature of the golden ratio was first applied to dividing straight lines. If the total length of a straight line is the denominator of the golden ratio plus the unit length of the molecule, if we divide it into two halves, the long half is the unit length of the molecule and the short half is the unit length of the mother and child, then the ratio of the long line length to the short line length is the golden ratio. The internationally recognized golden ratio of face defines the best distance between eyes, mouth, forehead and chin. Take women as an example. For an attractive face, the distance between the pupils of both eyes must be less than half the distance between the ears.
2 Discover history
[Picture] Since the Pythagorean school of ancient Greece studied the drawing methods of regular pentagons and regular decagons in the 6th century BC, modern mathematicians have come to the conclusion that Pythagoras school had touched and even mastered the golden section at that time.
In the 4th century BC, eudoxus, an ancient Greek mathematician, first studied this problem systematically and established the theory of proportion.
When Euclid wrote The Elements of Geometry around 300 BC, he absorbed eudoxus's research results and further systematically discussed the golden section, which became the earliest treatise on the golden section.
After the Middle Ages, the golden section was covered by mystery. Italian mathematician pacioli called the ratio between China and the destination sacred and wrote a book about it. German astronomer Kepler called this sacred ratio the golden section.
It was not until the19th century that the name golden section gradually became popular. The golden section number has many interesting properties and is widely used by human beings. The most famous example is the golden section method or 0.6 18 method in optimization, which was first proposed by American mathematician Kiefer in 1953 and popularized in China in 1970s.
3 Perfect face
[Picture] What is the perfect face? The great artist Leonardo da Vinci spent his whole life trying to find the answer with a brush. Scientists and mathematicians use numbers to calculate the golden ratio; Plastic surgeons create things directly. Colgate, a 0/8-year-old girl from the UK/KLOC, was chosen as the "most beautiful face in the UK" because her face almost completely conforms to the so-called "golden ratio". With the encouragement of family and friends, Colgate decided to take part in the competition. Participants must show their faces without makeup, and those who have undergone plastic surgery or chemical injection are not allowed to participate. Colgate stood out among 8000 contestants and won a modeling contract. Its advertisements and posters will also appear all over the country. The internationally recognized golden ratio defines the best distance between eyes, mouth, forehead and chin. Take women for example. For an attractive face, the distance between the pupils of both eyes must be less than half the distance between the ears, which is 44% in Colgate. The distance between her eyes, lips, hairline and chin is 32.8%, which is close to the golden ratio. An expert from the School of Psychology of St Andrews University said that the average person's left and right faces are usually asymmetrical, but Colgate is almost completely symmetrical, which adds points to his beauty. Colgate usually wears only light makeup. She hopes that this award will remind people to appreciate their natural faces more. Colgate prepares for the college entrance examination, and works part-time in a French fries shop in Deere Beach every Saturday. She doesn't resist joining the modeling industry, but she is trying to get into the business administration department of the university.