What are the things designed by the principle that eggs are not easy to crush?

Eggs are not easy to crush because of the arch principle.

This is due to the shape of the egg, because the egg is oval, when the egg is placed in the palm of the hand, the force made by the fingers is transmitted along the edge of the eggshell, and the curved structure of the egg surface is able to distribute the pressure it is subjected to, so the egg is not easy to break. Of course, in addition to the shape, there is also an important reason for the elastic inner film attached to the eggshell, which creates prestress.

It can help the whole structure of the eggshell to be tightened, making the eggshell stronger.

As a result, even if the egg shell is thin, it is well resistant to external pressure. The hand holding the egg does not concentrate the power together, but disperses to all parts of the egg, so it cannot be broken. Again, this makes use of the arch principle.

The arch principle is widely used in everyday life, such as hard hats.

Light bulbs, motorcycle helmets, arched bridges, vaulted roofs, tunnels, etc. The Zhaozhou Bridge we are familiar with.

It is the earliest existing single-hole arc open-shoulder stone arch bridge with the largest span in the world today, and the design of the arched bridge hole and the arched small bridge hole on the left and right sides of the cave roof is both beautiful and strong, and also saves the stone material, and reduces the impact of flowing water on the bridge.

The Zhaozhou Bridge has a large span and no piers, but it can stand for thousands of years without falling, relying on the ingenious design of the arch structure.

The miraculous shape of the egg structure has also been used in architecture, and it is now thin-shelled.

Architecture has been widely used all over the world. For example, the world-famous Sydney Opera House.

This "thin shell" structure is adopted.

The structure of the egg is very strong, and this type of structure is used in the construction of arch bridges, which can withstand a lot of pressure without falling.

Thin-shell buildings were built according to this principle and are widely used all over the world. For example, the world-famous Sydney Opera House uses this "thin shell" structure.

In addition, the arch principle has a wide range of applications in daily life, such as hard hats, light bulbs, motorcycle helmets, arch bridges, vaulted roofs, tunnels, etc. Zhaozhou Bridge is the world's earliest existing single-hole arc open-shoulder stone arch bridge with the largest span, its arched bridge hole and the design of the arched small bridge hole on the left and right sides of the top of the cave are both beautiful and strong, but also save stones, reduce the impact of flowing water on the bridge.

When pinching an egg, the lever force of the hand is evenly distributed to all parts of the egg, not enough to crush it, because the arch is the most stable shape. Arch bridges were built using this principle,,, such as the Zhaozhou Bridge, which stood there for thousands of years, crossing the other bank and leaning over to gaze at the rolling river flowing into the distance. People also used this principle to build arches, design cars, airplanes, and helmets.

The most famous is the National Centre for the Performing Arts in Beijing, which is egg-shaped.

1. Because its shape is round, when we pinch the egg in the palm of our hand, the pressure on its surface is equal; This pressure is not enough to break the eggshell, so the eggshell does not break;

2. Because the force of tease and respect is transitive, when you pinch it, the force is transferred to the rest of the egg through the liquid in the egg. The egg shell is made of calcium carbonate, which has a certain degree of solidity, in fact, the stone is mainly composed of calcium carbonate;

3. Because the egg shell is a fully enclosed uniform thin shell. When holding an egg, the careful grip on the eggshell around the egg evolves into a uniform distributed force through the adaptation of the eggshell, which is like applying uniform pressure to the whole surface of an object, resulting in the item becoming more compact and not easy to break.

In life, eggs break when they are knocked slightly, but why do we put a raw egg in the palm of our hands and try our best to crush it, why is this?

Learning power 100,000 why the column will take you to understand:

The reason why we can't break the raw egg with our hands is related to the shape of the egg. When we look at it from the side, we can find that the eggshell is arched, and the arch can effectively disperse the external positive pressure applied by all sides, and it is a structure that bears more positive pressure in nature.

SoWhen we hold the egg in the palm of our hand and hold it firmly, the force of the hand will be evenly distributed to all parts of the egg, and the egg will also transfer the force of the fingers to the palm of the hand and counteract it. In this way, the pressure on its surface is equal to a small force, and the eggshell will not break.

People also used this principle to get out of the arch bridge early, and although it looked relatively thin, it could withstand the weight of a large car. Using this principle, people also built arches, designed cars, airplanes, and helmets.

There is such a story about eggs that cannot be broken with one hand:

One day, Zhuge Liang drank with Liu Bei, Guan Yu, and Zhang Fei. During the dinner, they talked about who has the greatest strength in the world. Suddenly, Zhang Fei stood up:

These people don't have anything, and I'm the one who has the most strength! "Zhuge Liang smiled slightly:"Three generals, you say that you are an invincible strong man in the world, please perform in public, crush a raw egg with one hand, if you can crush it, I will admit that you are a strong man.

Zhang Fei laughed and put the egg in the palm of his hand, but he couldn't crush it. Zhuge Liang took the egg, pinched it with two fingers, and listened"Click"With a bang, the egg shattered. From then on, Zhang Fei no longer dared to boast casually.

Can you explain that?

A person holds an egg and squeezes it vigorously, but no matter how hard he pushes, he can't crush the egg. How can the thin eggshell be so strong with the bird's bridge? Scientists studied this question with great interest and finally discovered that the reason why a thin eggshell can withstand so much pressure is that it is able to evenly distribute the pressure (yún) to all parts of the eggshell.

According to the characteristic point of this "thin shell structure", the architect designed many old oak buildings that are both light and economical.

1: Because its shape is round, when we pinch the egg in the palm of our hand, the pressure on its surface is equal; This pressure is not enough to break the eggshell, so the eggshell does not break; Because force is transitive, when you pinch it, the force is transferred to the rest of the egg through the liquid in the egg.

The egg shell is made of calcium carbonate, which has a certain degree of solidity, in fact, the stone is mainly composed of calcium carbonate;

The 100,000 whys are mentioned in it: Because the egg is round and placed in the palm of the hand, the force exerted by the fingers will be transmitted to the palm and counteracted.

Of course, if you don't hold it well, you will crack it if you press it hard. It's like an egg that breaks when you bump it on the edge of a pan, that's because it's not evenly stressed.

Because its shape is round, when we pinch the egg in the palm of our hand, the pressure on its surface is equal; This pressure is not enough to break the eggshell, so the eggshell does not break;

2: Because the egg shell is a fully enclosed, homogeneous thin shell. When holding an egg, the grip force exerted on the eggshell around the egg evolves into a uniform distributed force through the adaptation of the eggshell, which is like applying uniform pressure to the whole surface of an object, and as a result, the object becomes more compact, and of course it is not easy to break.

From a physical and mechanical point of view, this method of applying pressure across the board, the increase in force can only make the object smaller, and eventually develop towards the Sun like a neutron star. But if there is a small hole in the eggshell, even if it is very small and very regular, of course, it must be enough to destroy the closed structure of the eggshell, then the egg is easy to crush. Also, if you can control your different fingers to exert different forces, you can also crush them, but you need to have a strong grip, at least 100n or more.

That is the force acting on the surface of the egg, the pressure formed is small, round and relatively stable, which is conducive to the conduction of force, and the reason for destroying the eggshell is that the pressure should be large enough, that is, the force area should be small.

Crushing, not crushing. Thin-shell structure.

Assuming that when the outside of the eggshell is fully stressed, the pressure does not produce a shear force, but is converted into a tangential extrusion force inside the eggshell, so it can withstand a relatively large force.

In fact, it is difficult to pinch without breaking.

1. The force is uniform. The surface area of the palm in contact with the egg is large, and the pressure acting on the unit area is small, and the stress that does not exceed the eggshell (calcium carbonate) is stressed.

2. And the eggshell is round, there is no force point, and its internal liquid is not hollow, which will also play a role in discharging.

The egg is held firmly and will not break.

Do you have nothing to do? It doesn't matter if it's broken!

Cluck, cluck, cluck.