There is an interesting custom on the Equinox Day, that is, erecting eggs. So why should eggs be erected on the equinox? I believe many people only know this custom, but they don't know its origin. How can eggs be erected on the equinox? In fact, there are skills to follow.
Why erect eggs on the equinox?
The spring equinox vertical egg, also known as the spring split egg, refers to the popular 'vertical egg game' on the day of the spring equinox every year. This Chinese custom has long been spread abroad and has become a 'world game'. 4000 years ago, Chinese ancestors began to celebrate the arrival of spring. The saying that "eggs are pretty when the equinox comes" is still popular today.
The most interesting custom on the Equinox Day is to erect an egg: choose a smooth and well proportioned egg that has just been born for four or five days, and erect it gently on the table. When the spring equinox comes, the eggs are pretty. Every year when the spring equinox comes, many places in our country hold the game or competition of erecting eggs.
According to historical records, the tradition of laying eggs on the equinox originated in the Great China 4000 years ago to celebrate the coming of spring. In fact, standing an egg is not related to the vernal equinox, but to make the center of gravity of the egg lower than the curve position of the maximum perimeter in the middle of the egg. In the old legend, it's the easiest day to stand an egg on the equinox.
In fact, there is a meaning of erecting eggs. When spring comes, everything is restless. Erecting eggs is a good way to remind people to keep a good attitude and calm at any time.
Why do you choose to lay eggs on the vernal equinox? Can eggs stand up at ordinary times? What's the scientific reason for laying eggs?
Some people say that it is easy to erect an egg at the vernal equinox because the vernal equinox is a day as long as day and night in the northern and southern hemispheres. The earth's axis tilted at 66.5 degrees is in a state of relative balance with the earth's orbit around the sun, so it is easier to erect an egg.
Some people say that the equinox is in the middle of spring, the weather is not cold or hot, the flowers are red and the grass is green, the people are comfortable, the thinking is quick, and the action is quick, so it is the easiest to concentrate and successfully erect the egg.
According to the book 24 solar terms knowledge, erecting an egg has nothing to do with the vernal equinox. Because the surface of the egg is uneven, there are many protruding hills. The height of the hill is about 0.03 mm, and the distance between the peaks is 0.5-0.8 mm. According to the principle that three points determine a plane, as long as you find three hills and the triangle formed by the three hills, and then let the center of gravity of the egg pass through the triangle, the egg can stand up.
Some experts believe that the vertical egg really has nothing to do with the vernal equinox. Because the real factor that makes an egg stand up is gravity, it can stand up any day of the year. The secret of erecting an egg is to keep your hands steady, be patient and keep your heart pure.
take laws and regulations lightly
The game of erecting eggs on spring equinox is simple and interesting: choose a smooth and well proportioned fresh egg that has just been born for four or five days, and gently erect it on the table. Although there are many losers, there are also many winners. Spring is divided into the best time of the egg game, so there is a saying that when the equinox comes, the eggs are pretty. The egg that stands up is not beautiful.
According to experience, the egg should be laid on the surface of the spring equinox: the surface of the egg is actually uneven, with many protruding 'Hills'. The height of the' Hills' is about 0.03mm, and the distance between the peaks is 0.5mm-0.8mm. According to the principle of three points to determine a plane, as long as we find three suitable 'Hill' fulcrum, we can make the egg stand up.
In addition, 4-5 days after birth, the egg yolk will sink and the center of gravity will drop due to the relaxation of yolk band, which is more conducive to the erection of eggs.
principle
Principle 1: on the vernal equinox, the northern and southern hemispheres equinox, the earth's axis tilted 66.5 degrees and the earth's orbit around the sun are in a state of relative balance of forces, and the earth's magnetic field is also relatively balanced, so the egg's standing ability is the best.
Spring equinox vertical egg principle 2: there are many 0.03 mm high protrusions on the eggshell, three protrusions can form a triangular plane, if the egg's center of gravity line through the triangle, you can achieve 'vertical egg'.
There's a trick to laying eggs
Method 1: choose eggs
First of all, choose a big egg and a small one. When setting the egg, put the big end down. In this way, the center of gravity will be lower, just like a tumbler, and it is easy to keep balance. It's best to lay eggs 3 to 5 days after birth. The yolk band of such eggs is loose, the yolk sinks, and the center of gravity drops, which is conducive to the erection of eggs. When laying eggs, you can't choose cooked eggs or refrigerated eggs. If the eggs are just taken out of the refrigerator, it's better to warm them up before testing.
Method 2: find the support surface
Once you stand on a flat surface, you can see the bottom of the egg with the help of gravity.
Method 3: keep your hands steady
As the position of yolk in raw eggs will also affect the standing of eggs, the hands of standing eggs should be kept as still as possible, so that the yolk can slowly settle to the bottom of the eggs, so that the center of gravity can be low enough to keep the eggs balanced.
Spring equinox vertical egg this game is quite interesting, might as well take out the eggs at home to have a try, see how many you can stand up.