What's interesting about the folk customs of "vernal equinox" and "vertical egg"?

The folk custom of "laying eggs vertically" on the vernal equinox has become a "world game".

1. When the vernal equinox comes, the eggs are beautiful.

The vernal equinox in the 24 solar terms. In order to welcome the spring equinox, people have many customs. One of them is vertical eggs. It is said that this is the easiest day to lay eggs at the vernal equinox. Vernal equinox eggs, also known as vernal equinox eggs, refer to the "vertical egg game" popular among people all over the world on the vernal equinox. According to records, the tradition of vernal equinox and raising eggs originated four thousand years ago to celebrate the arrival of spring. Since then, it has become popular that "the vernal equinox has arrived and the eggs are beautiful".

2. Interesting stories about western vertical eggs

The shape and smooth curve of an egg are the reasons why it is difficult to stand, and it is also attractive. Leonardo da Vinci was a famous painter during the Renaissance in Europe. He spent more than two years sleeping and eating, and practiced drawing egg curves every day, which laid a solid foundation for him to successfully shape the mysterious smile of Mona Lisa. People in China call the face "face" and take the shape of the egg as the standard of facial aesthetic feeling, which fully shows the superb level of the aesthetic value and attributes of the egg. However, for a long time, people have been unable to find the mathematical expression of egg-shaped curve, and even mathematicians can only rely on egg-shaped balls to approximate egg-shaped curve with rulers and compasses.

3 "point" representation

On the day of the vernal equinox, the sun shone directly at the equator of the earth, and it was midnight for half a day. Meanwhile, spring is between beginning of spring and long summer. The word "minute" means the boundary between day, night, cold and heat.

As the saying goes: the vernal equinox is coming! On the vernal equinox, people have the custom of "laying eggs". It is said that this custom has become a "world game". Every spring equinox, thousands of people all over the world are playing "egg-raising".