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Erecting the egg

竖蛋

In China, it is said that the egg can be set upright on the first day of the Start of Spring, Spring Equinox day and Autumn Equinox day. It is believed that if someone can make the egg stand on the first day of Start of Spring, he will have good luck in the future.

中国有个民间说法，鸡蛋在立春、春分和秋分节气的第一天可以竖起来。据认为，如果一个人能在立春日这天把鸡蛋竖起来，他就能交好运。

According to astronomers and physicists, setting the egg upright has nothing to do with time, but with mechanics. The most important thing is to shift the egg's center of gravity to the lowest part of the egg. In this way, the trick is holding the egg until the yolk sinks as much as possible. For this, people should choose an egg about 4 or 5 days old, whose yolk is inclined to sink down.

天文学家和物理学家指出，鸡蛋竖起来和时间无关，和力学有关。最重要的是把鸡蛋的重心调整到鸡蛋最低的部位。诀窍就是握着鸡蛋，直到蛋黄尽可能下沉。人们应该选择一个放置了4到5天的鸡蛋，这样的鸡蛋蛋黄容易下沉。