The rising of eggs is the solar term of the Spring Equinox.

Spring Equinox Egg Standing, also known as Spring Equinox Egg Standing, refers to the "egg standing game" popular among people all over the world on the Spring Equinox every year. This Chinese custom has long been spread abroad and has become a "world game". 4,000 years ago, the ancestors of the Chinese nation began to celebrate the coming of spring in this way. The saying "when the vernal equinox arrives, the eggs will be beautiful" has been passed down to this day.

The principle is based on: the vernal equinox is the day when day and night equinox in the northern and southern hemispheres. The earth's axis tilted at 66.5 degrees and the earth's orbital plane around the sun are in a state of relative balance of forces. At the same time, the earth's axis is in a state of relative balance. The magnetic field is also relatively balanced, which is very conducive to egg erecting.

The surface of the egg or the plane on which the egg is erected is uneven. As long as there are any 3 supporting points, a supporting surface can be formed. As long as the center of gravity of the egg falls on this supporting surface, the egg can stand upright. .