Is it superstition that raw eggs stand up?

1. Natural upright

Point 1: Pick eggs.

First, choose an egg with a big head and a small head. When laying eggs, the big head will face down, so the center of gravity will be lower, just like a tumbler, it is easy to keep balance.

The second point: find support.

In order to find a suitable supporting surface, we did a small experiment. We drew inkpad on the desktop, and then stood the eggs on the inkpad. You can find that an egg that can stand will have a plane at the bottom that is difficult to see with the naked eye. Once the gravity line can pass through this plane, the egg can stand up.

Point 3: Keep your hands steady.

Because the position of the yolk in the raw egg will also affect the standing of the egg, the hand standing on the egg should be kept as still as possible, so that the yolk can slowly settle to the lower part of the egg, so that the center of gravity can be low enough to keep the egg balanced.

2. With the help of foreign objects-double-sided tape, salt

The main reason is that the salt particles can increase the friction force, and at the same time, the salt particles will form a stable triangular support with the vertex of the egg sphere, thus supporting the egg.

3. It is said that raw eggs can be laid every year at noon on Dragon Boat Festival and vernal equinox 12.

First of all, the vernal equinox is a day with the same length of day and night in the northern and southern hemispheres. The inclination of the earth's axis is 66.5 degrees, which is in a relatively balanced state with the earth's orbital plane around the sun, which is beneficial to vertical eggs. Secondly, the vernal equinox is in the middle of spring, which is lukewarm, colorful, comfortable, quick-thinking, agile and easy to succeed in laying eggs.

More importantly, the surface of the egg is uneven and there are many protruding "hills". The height of "mountain" is about 0.03mm, and the distance between peaks is 0.5-0.8mm. According to the principle that three points form a triangle and a plane is determined, as long as three "mountains" and the triangle formed by these three "mountains" are found and the center of gravity of the egg passes through this triangle, the egg can stand upright.

Reason for failure:

1, this is a super unstable station and needs patience.

As long as there is a little breeze or your breath, it will affect the result.

3. Adhesion without hands may also hinder its achievement.

4. The vibration and unevenness of the desktop will destroy this balance.

Of course, the choice of eggs is also very important.

References:

Baidu encyclopedia-standing eggs