Why the spring equinox? How does the custom come about
4hw.com.cn: the spring equinox in 2018 is coming. Every year, there is a custom of egg erecting in many places. There is an egg erecting competition held. Moreover, this custom has a history of 4000 years. Do you know why egg erecting is necessary at the spring equinox? What are the tips and techniques of egg erecting? Let's have a look with Xiaobian.
Why can the spring equinox stand eggs
Principle of vertical egg
Spring equinox is the day when day and night are equal in the northern and southern hemispheres. The earth's axis and the earth's orbit plane around the sun belong to a relatively balanced state. At the same time, the earth's magnetic field is relatively balanced. Therefore, the Spring Equinox Day is good for egg erection, and the success rate of egg erection is relatively high.
Comprehensive overview
Spring equinox is the season when flowers bloom in spring. The temperature in most parts of China is suitable. In addition, flowers and plants are beginning to sprout, so people's mood becomes more pleasant. In such a good day, people's actions are natural and sharp, and egg erecting is easy to succeed. Therefore, some people think that it's just a matter of individual skill to erect eggs, which has nothing to do with the equinox.
Scientific interpretation
Many scientists believe that there are many protrusions about 0.03 mm high on the eggshell. Three protrusions can form a triangular plane. If the center of gravity line of the egg passes through the triangle, it can achieve 'egg standing'. Therefore, eggs can be erected in any day of the year, and stable eggs can be kept for more than ten days without external interference.
The steps and skills of erecting eggs at the vernal equinox
I. choose a smooth and well proportioned fresh egg that is big at one end and small at the other, and has just been born for four or five days.
2. When laying eggs, put the big head down, so the center of gravity will be lower, just like a tumbler, which is easy to maintain balance.
3. When laying eggs, keep your hands as still as possible, so that the yolk can slowly settle to the bottom of the egg, so that the center of gravity can be low enough to keep the egg in balance.
4. Because the egg is not easy to stand on the glass, smooth metal or plastic sheet, it is recommended to use a pinch of salt to increase friction, and then blow against the straw to blow away the salt around the egg, and the egg will stand up.
5. Any variety can be set up. However, compared with raw eggs, cooked eggs are not easy to stand up. Because there are many protruding 'Hills' on the surface of the egg, according to the principle of three points to determine a plane, as long as three suitable' Hills' fulcrum is found, the egg can be erected.