“立春”九大风俗 鸡蛋为啥能立起来？ Culture Insider: 9 things you may not know about Start of Spring

Two girls erect eggs. [Photo/asianewsphoto.com]

Erecting the egg
立鸡蛋

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.
按中国民间说法，立春、春分和秋分时，鸡蛋很容易竖起来。人们认为在立春能把鸡蛋竖起来的人，来年有好运。

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.
据天文学家和物理学家所说，竖鸡蛋和时间没有关系，只与力学有关。关键是把鸡蛋的重心移到最低点，握住鸡蛋，尽量让蛋黄下沉。还要挑选已经下了四五天，蛋黄容易下沉的鸡蛋。