What did people invent through eggshells?

People invented the thin shell structure through eggshells.

A person holds an egg and squeezes it hard. No matter how hard he squeezes it, he can't break it. The thin eggshell can bear so much pressure because it can distribute the pressure evenly to all parts of the eggshell.

According to the characteristics of this "thin shell structure", architects have designed many buildings that are both light and material-saving. The roofs of many famous buildings, such as the Great Hall of the People and Beijing Railway Station, adopt this "thin shell structure".

Extended data:

Thin shell structures are divided into cylindrical shells, dome thin shells, hyperbolic shallow shells and hyperbolic parabolic shells according to the form of surface generation, and the materials are mostly steel bars and concrete.

The shell can make full use of the strength of the material, and at the same time, it integrates the functions of bearing and shell. In practical engineering, it is also possible to use the cutting and combination of spatial curved surfaces to form buildings with strange and novel shapes that can adapt to various planes, but this requires a lot of manpower and templates.

The advantage of thin shell structure is that it can evenly distribute the pressure to all parts of the object and reduce the pressure. The principle of thin shell structure is used in many building roofs.

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