Why can vertical eggs succeed in the vernal equinox?

The success of the vernal equinox vertical egg is as follows:

First, beginning of spring is a day in which day and night are equal in the northern and southern hemispheres. The axis of the earth tilted by 66.5 degrees and the orbital plane of the earth revolving around the sun are in a state of relative balance of power, which is very beneficial to vertical eggs.

And there are many protrusions about 0.03 mm high on the eggshell, and three protrusions can form a triangular plane. If the center of gravity of the egg passes through this triangle, it can achieve "vertical egg".

The game of "vertical egg" is simple and interesting: choose a smooth and symmetrical fresh egg that has just been born for four or five days, and gently stand it up on the table. Although there are many losers, there are also many winners. The vernal equinox has become the best time for vertical egg games, so there is a saying that when the vernal equinox arrives, the eggs will be beautiful. The eggs that stand up are very beautiful.

Secondly, the vernal equinox is in the middle of spring, which is neither cold nor hot, bright and green, comfortable, quick-thinking, and easy to lay eggs successfully. Among them, beginning of spring is mainly the beginning of the four seasons in ancient times, and the vernal equinox is only a law indicating the movement of the sun.

The viewpoint in the book "Knowledge of Twenty-four Solar Terms" holds that vertical eggs have little to do with the vernal equinox. Because the egg surface is uneven, there are many protruding "hills". This mountain is very high. 03 mm or so, and the distance between "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 these three "hills", and then let the center of gravity of the egg pass through this triangle, the egg can stand upright.