Interesting solar terms folklore: what is an autumn egg?

Twenty-four solar terms are important traditional cultural concepts in China. When different solar terms come, people will have rich and colorful folk customs, many of which span a long history and continue to this day, still with their own characteristics and full of interest. Now let's take a look at the famous custom of autumn eggs.

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As early as 4,000 years ago, China had the tradition of dividing eggs in autumn to celebrate the arrival of autumn. In fact, the vertical egg has nothing to do with the autumnal equinox, but the center of gravity of the egg must be lower than the curve position of the maximum circumference in the middle of the egg. In ancient legends, the day of the autumnal equinox is the easiest day to lay eggs. Astronomers said that according to historical records, the tradition of dividing eggs in autumn originated in China 4,000 years ago to celebrate the arrival of autumn.

According to astronomical experts, the autumnal equinox is the balance of time, the balance of day and night, and the stability of eggs standing is the best. There are also views that laying eggs has nothing to do with the autumnal equinox, and eggs can be laid on any day of the year. At the same time, some folk places in China will hold interesting "vertical egg" games or competitions on the day of the autumnal equinox.

There are two principles for dividing eggs in autumn. One is that on the day of the autumnal equinox, the northern and southern hemispheres are divided equally day and night. The earth's axis is inclined at 66.5 degrees, which is in a relatively balanced state with the earth's orbital plane around the sun, and the earth's magnetic field is also relatively balanced, so the egg has the best standing performance. Secondly, because the autumnal equinox is in the middle of autumn, it is neither cold nor hot, comfortable, quick-thinking, and easy to lay eggs successfully.

However, some experts believe that this is a purely technical issue and has nothing to do with the autumnal equinox. Astronomical experts say that eggs can be erected on any day of the year, and a stable egg can last for more than ten days without external interference.

Then let's take a look at three tips for dividing eggs in autumn and see how to stand eggs well without falling: 1. First of all, choose an egg with a big head and a small head, so that the center of gravity will be lower, just like a tumbler, and it is easy to keep balance.

2. Looking for a supporting surface In order to find a suitable supporting surface, we did a small experiment. We drew inkpad on the table, and then put the inkpad-coated eggs on the table. You can find that an egg that can stand has a plane at the bottom that is hard to see with the naked eye. Once the gravity line can pass through this plane, the egg can stand up.

3, the hand should be stable because the position of the yolk in the raw egg will also affect the standing of the egg, so the hand standing on the egg should be kept as still as possible, so that the yolk can slowly precipitate to the lower part of the egg, so that the center of gravity can be low enough to keep the egg balanced.

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