Why can we stand an egg upright during the Spring Equinox? There is actually a scientific reason for standing an egg upright during the Spring Equinox.

The Spring Equinox of 2017 is approaching. On this day, egg standing competitions will be held in many places. This activity of "Egg Standing on the Spring Equinox" has been popular in China for more than 4,000 years. Do you know why eggs can stand upright during the Spring Equinox? What are the principles and techniques of standing an egg upright on the Spring Equinox? Let’s take a look together.

Why can eggs stand upright on the Spring Equinox?

The principle of erecting an egg

The day of the Spring Equinox is the day when the day and night are equal in the northern and southern hemispheres. The Earth's axis and the orbital plane of the Earth's revolution around the sun are in a state of relative balance, and the Earth's magnetic field is also relatively balanced. Therefore, the Spring Equinox is a good day for standing eggs upright, and the success rate of making eggs stand upright is relatively high.

General Overview

The Spring Equinox coincides with the season of spring flowers. The temperature in most parts of China is suitable, and the flowers and plants are beginning to sprout, making people's mood become happier. On such a good day, people's movements are naturally smooth and it is easy to stand the egg upright. Therefore, some people believe that making an egg stand upright is purely a matter of personal egg-standing technique and has nothing to do with the vernal equinox.

Scientific Explanation

Many scientists believe that there are many protrusions on the eggshell, each about 0.03 mm high. Three protrusions can form a triangular plane. If the center of gravity of the egg passes through this triangle, the "vertical egg" can be achieved. Therefore, eggs can actually stand upright on any day of the year, and a firmly standing egg can remain standing for more than ten days without any external interference.