The ratio of the length below the waist to the height is 0.618, which is called the golden section (golden ratio).

The golden section refers to dividing the whole into two parts. The ratio of the larger part to the whole part is equal to the ratio of the smaller part to the larger part. The ratio is about 0.618. This ratio is recognized as the most aesthetically pleasing ratio, so it is called the golden section.

In the ancient Greek period, Pythagoras was walking on the street one day. When he passed by the blacksmith shop, he heard the sound of the blacksmith making iron, which was very pleasant, so he stopped and listened. He discovered that the blacksmith struck iron in a regular rhythm, and the proportion of this sound was expressed mathematically by Pythagoras.

Divide a line segment into two parts so that the ratio of the larger part to the full length is equal to the ratio of the smaller part to the larger part, then this ratio is the golden section. The ratio is (√5-1):2, and the approximate value is 0.618. This value is usually represented by the Greek letter Ф.

Extended information

The golden section has strict proportions, artistry, and harmony, and contains rich aesthetic value. This ratio can arouse people's sense of beauty and is considered to be an important factor in architecture and The most ideal proportions in art.

Painters have found that the most beautiful paintings can be drawn with a ratio of 0.618:1, as seen in Leonardo da Vinci's works "Vitruvian Man", "Mona Lisa", and The golden section is used in The Last Supper.

For today’s women, the average length below the waist only accounts for 0.58 of their height. Therefore, the famous ancient Greek statues of Venus de Milo and the sun god Apollo deliberately lengthened their legs to make them equal to their height. The ratio is 0.618.

Architects are particularly fond of the number 0.618. Whether it is the pyramids of ancient Egypt, Notre Dame in Paris, the Eiffel Tower in France in the recent century, or the Parthenon in Athens, Greece, there is a golden section. footprints.

Reference materials

Baidu Encyclopedia--Golden Ratio