What did people invent based on eggs, and what did we invent through eggs?

According to the egg structure.

The principle of biomimicry was used to invent the thin-shell structure.

Thin-shell structure. The shell is a curved component that mainly bears the forces in the middle surface generated by various actions. The thin shell structure is a thin-walled structure with curved surfaces, which is divided into cylindrical shells, dome thin shells, hyperbolic flat shells and hyperbolic parabolic shells according to the form generated by the curved surface, and the materials are mostly reinforced concrete.

The housing can make full use of the strength of the material, while at the same time combining the two functions of load-bearing and enclosure into one. In the actual project, the cutting and combination of the space surface can also be used to form a building with a peculiar and novel shape and can adapt to various planes, but it is more labor-intensive and cost-consuming template. 1 Cylindrical shell (cylindrical thin shell):

It is a thin, unidirectional shell with curvature, consisting of a shell, side edge members and a diaphragm. The distance between the transverse compartments is the span l 1 of the shell, and the distance between the side members is the wavelength l 2 of the shell. When l 1 l 2 1 is a long shell, l 1 l 22 1 is a short shell.

2. Dome thin shell: It is a rotating curved shell with positive Gaussian curvature, which is composed of a shell surface and a support ring, and the thickness of the shell surface is very thin, generally 1 600 of the radius of curvature, and the span can be very large. The support ring acts as a hoop for the dome shell and through it rests the entire shell on the supporting member.

3 Hyperbolic flat shell (micro-curved flat plate): The ratio of the vector height f at the vertex to the length of the short side of the bottom surface should not exceed 1 5 on the surface formed by the translation of one parabola along another orthogonal parabola. The hyperbolic flat shell consists of the shell body and four peripheral partitions, which are arches with tie rods or beams of variable height.

It is suitable for buildings covering a square or rectangular plane with a span of 20 to 50 meters (the ratio of its long and short sides should not exceed 2). 4 Hyperbolic parabolic shell: A surface formed by a vertical parabola (busbar) moving in parallel with another convex parabola (traverse) in the opposite direction.

The curve that crosses the surface and the horizontal plane is hyperbola, so it is called hyperbolic parabolic shell. The various twisted shells commonly found in the project are also one of the types, which are widely used because they are easy to make, have good stability, and are easy to adapt to the needs of building functions and shapes.

Hope it helps!

I also know I can make soup and drink it!

invented the words "chicken" and "egg"; Many dishes were also invented, such as: scrambled eggs with leeks, scrambled eggs with tomatoes, scrambled eggs with green peppers, etc. When you eat noodles in a noodle restaurant, you can also ask the boss: Boss, fry me an egg in the noodles! ～

Egg products were invented.

People invented cupola and thin-shell roofed houses through eggshells.

Because the shape of the eggshell is oval, when the egg is pinched in the palm of the hand, the pressure on its surface is equal; This pressure is not enough to break the eggshell, so the eggshell does not break. Because the force is first absent or transitive, when pinched, it acts and transmits the force 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.

An egg shell is a thin, uniform shell that is fully enclosed. 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 the point of view of physical mechanics, this method of applying pressure in an all-round way, the increase of force can only make the object smaller, and eventually develop towards the Sun like Wu Zixing.

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.

The internal structure of the eggshell of the boiled egg is destroyed, the calcium is decomposed and lost, the eggshell changes from liquid to solid, the tension of the liquid, the dispersion and absorption of force is stronger than that of the solid, and the membrane that wraps the egg white in the egg loses its effect when cooked, so it is easy to crush.

The inspiration from eggs was the invention of the thin shell structure.

The reason why a thin eggshell can withstand a lot of pressure is that it is able to evenly distribute the pressure to all parts of the eggshell. Based on this "thin-shell structure", the architect designed many buildings that were both light and economical. The Great Hall of the People, the Beijing Railway Station and many other famous buildings have this "thin shell structure" on the roof.

The thin shell structure is a thin-walled structure of the curved surface, which is divided into cylindrical shell, dome thin shell, hyperbolic flat shell and hyperbolic parabolic shell according to the form of curved surface generation, and the materials are mostly steel and concrete. The housing can make full use of the strength of the material, while at the same time combining the two functions of load-bearing and enclosure into one.

People invented the thin shell structure from the eggshell.

A person holds an egg and squeezes it vigorously, no matter how hard he pushes, he can't crush the egg. The reason why the thin eggshell can withstand so much pressure is that it is able to evenly distribute the pressure applied to all parts of the eggshell.

Based on this "thin-shell structure", the architect designed many buildings that were both light and economical. The Great Hall of the People, the Beijing Railway Station and many other famous buildings have this "thin shell structure" on the roof.

Summary. 3In October 1879, by chance, Edison tried to use carbonized cotton thread to put the bulb in, after the power was turned on, the bulb emitted a golden glow, illuminating the entire laboratory, after 13 months of hard work, tried more than 6,000 kinds of materials, tested more than 7,000 times, and finally made a breakthrough. 4 The lamp was left on for 45 hours before the filament was burned.

This is the first electric light with practical value in mankind. Later, October 21, 1879 was designated as the day of the invention of electric light, marking the birth of the usable electric light.

Edison invented the table lamp.

Leonardo da Vinci taught people to draw eggs.

British scientists David and Faraday invented the arc lamp. This type of electric lamp uses a charcoal rod as a filament. Although it can emit bright light, the light is dazzling, consumes a lot of power, and is very impractical.

Therefore, Edison secretly decided: "We must invent a kind of electric light with soft light, so that thousands of households can use it." 2 He began to work on the material of the filament:

From traditional carbon bars to metal ruthenium, chromium, platinum, etc., in this way, Edison experimented with more than 1,600 materials, but Edison did not retreat in the face of repeated failures, and he firmly believed that failure is the mother of success.

3In October 1879, by chance, Edison tried to use carbonized cotton thread to put the bulb in, after the power was turned on, the bulb emitted a golden glow, illuminating the entire laboratory, after 13 months of hard work, tried more than 6,000 kinds of materials, tested more than 7,000 times, and finally made a breakthrough. 4 The lamp was left on for 45 hours before the filament was burned. This is the first electric light with practical value in mankind.

Later, October 21, 1879 was designated as the day of the invention of electric light, marking the birth of the usable electric light.

But Edison was not satisfied, he wanted to prolong the life of the bulb, and then he tried to use the carbonized bamboo wire as the filament, the test results showed that the use of bamboo filament as a filament works very well, the filament is durable, and the bulb can be lit for 1200 hours. So the electric light began to be mass-produced, and after that, the electric light began to enter the homes of ordinary people.