Why are ancient technologies lost, and what are some of the lost technologies that cannot be restore

The main ones are the War of Resistance Against Japan, the Civil War, and the fault line of the Cultural Revolution for fifty years.

Ancient people were very wise, they invented a lot of technology during that period, and there are still many technologies they invented that cannot be restored with modern technology. Although there were no convenient and intelligent machines like in ancient times, they were all black technology created by the most primitive handmade during that period. Next, I will introduce you to a few ancient technologies that even modern people cannot restore.

The first is Damascus steel, which is a kind of steel made of iron materials made of different kinds of materials, which is synthesized by refining, and has a very special pattern engraved on the surface when casting, which is also called pattern steel. Modern scientists have analyzed that this material is made of steel with a very precise amount of compounds, which is a very advanced technology, but its casting method is still a mystery. The second is Roman concrete, which is a very important material in construction, and is used in many buildings, and it is characterized by being very hard and strong.

However, this kind of concrete is formed by a special chemical reaction, and it takes a long time to make, so it cannot be used in modern society. <>

The other is flexible glass, which does not look much different from ordinary glass, but does not break. There is also the Greek fire, which is a liquid fuel and other fires, except that this fire burns in contact with water and does not need to be ignited. In that period when there was no gunpowder, this kind of fire can be said to be the most lethal one**.

The last one is the Archimedes ray, also known as the death ray, which is used in warfare and is a very powerful **. But when the Romans invaded Syracuse, they killed so many Archimedes that the Archimedes were gone, and no one has been able to study them since. <>

It can be seen from this that the wisdom of the ancient people was to be able to create so many things with their hands, which is really admirable.

Lu Ban was a native of Lu during the Spring and Autumn Period, also known as Gong Loser. Legend has it that Luban made a big wooden bird based on the birds in the sky, and people called it a wooden kite. It is said that Lu Ban rode on the bird, and then patted its head three times, it will fly, and can also control its direction, there are written records, in the late Spring and Autumn Period, Lu Ban took the wooden kite at that time and peeped into the capital of the Song Kingdom.

Smelting and casting, tenon and tenon technology, ground motion instrument, ancient aircraft, gold sore medicine, hemp boiling powder and other production techniques cannot be restored.

The most famous is the wooden ox flowing horse, which everyone knows.

bai put, it is also recorded in the Chronicles of the Three Kingdoms, but now no one knows Zhi Zhuge Dao

Liang made it, and Zhuge even the crossbow was lost.

The other is Zhang Heng's geodynamic instrument, now what you see is just a model, the previous primary school textbooks have said his internal structure, but I tell you that the structure is assumed by modern people, the real internal structure of the geokinetic instrument has been lost, and now the restored geodynamic instrument in the museum can not be detected.

There is also Hua Tuo's hemp boiling powder, which is also recorded in historical materials, it is said that Hua Tuo was able to help people cut the appendix at that time (cold one···

During the Three Kingdoms period, Ma Jun used to make guide cars, which have also been lost.

That's all I have to write...

In fact, there are many lost technologies, not only in China, but also abroad.

According to the book, 90% of the ancient martial arts have been permanently lost ......Columns: water floating, cornices and walls, light work, etc., ......

Ma boiling scatter, green capsule book, Muliu cattle and horses, Qimen Dunjia, seventy-two road turning yang knife.

The main reason is that after a long period of research and development by human beings, there is no way to study some of the techniques of the ancient people, and these techniques are also because of the limited surrounding conditions, and it is difficult to master them in many cases.

Because there are many ancient technologies, although the technology is not advanced, but the action technology requirements are very chaotic and high, if there is no one to teach themselves, it is difficult to master these skills.

Because the wisdom of the ancients is infinite, and some of their technologies are so advanced that we can't study them even now.

Ancient China's science and technology have always been ahead of the world, and many things are now not at the highest level even if they can be copied. The following three can be said to be such representatives.

1. Mortise and tenon technology.

Mortise and tenon is the main structural method of ancient Chinese architecture, furniture and other equipment, and it is a connection method that combines concave and convex parts on two components. The protruding part is called tenon (tenon); The recessed part is called Mao (eye, tenon and groove).

Ancient Chinese architecture is mainly made of wood, and the whole includes columns, beams, fangs, backing plates, truss purlins, bucket arches, rafters, lookout boards and other basic components. These components are independent of each other and need to be connected by mortise and tenon joints to form a building.

The building connected by mortise and tenon can be firmly formed without a single nail or a drop of glue, forming a natural beauty, which can be said to be both beautiful and firm. There is a saying among the folk that "mortise and tenon ten thousand years of prison".

One of the most famous representatives is the Shanxi Yingxian Wooden Pagoda (also known as the Buddha Palace Temple Shakya Pagoda).

Yingxian Wooden Pagoda was built in 1056 A.D., 962 years ago. The wooden tower is high meters, the diameter of the bottom layer is meters, and the whole tower is 3,000 cubic meters of red pine wood, more than 2,600 tons, pure wood structure, no nails and no rivets. In the past 1,000 years, the wooden tower has been attacked many times, and the intensity of the tower has exceeded ten times in the intensity of more than five degrees.

It is still intact today.

2. Plain yarn Zen clothes.

In 1972, the plain yarn Zen clothes excavated from the Mawangdui Han Tomb in Changsha, Hunan Province, were as thin as cicada wings and as light as smoke, and the whole weight was only 49 grams.

Mawangdui's plain yarn Zen clothes are so light and thin that modern replication technology is difficult to achieve. The Hunan Provincial Museum commissioned a copy from the Nanjing Yunjin Research Institute, but the first plain gauze shirt reproduced by the institute weighed more than 80 grams. After many improvements, the weight of the copied cicada clothes became lighter and lighter, but it never fell below 49 grams.

3. Cloisonné.

Cloisonné, one of China's famous special metal crafts, is known as "copper tire cloisonné enamel", also known as "enamel" and "inlaid enamel", is a kind of porcelain ware made of porcelain ware made of firing in the pattern with soft flat copper wire with soft flat copper wire on the copper fetus, and then filling the enamel glaze in the pattern. Because it was prevalent in the Jingtai period of the Ming Dynasty, the production skills were relatively mature, and the enamel glaze used was mostly blue, so it was named "cloisonne".

There is a folk saying that "one cloisonne, ten boxes of official kilns", which means that cloisonne is the culmination of traditional Chinese crafts. The cloisonné process not only includes bronze technology and porcelain technology, but also integrates traditional painting and carving skills, and is a composite process integrating metallurgy, casting, pottery, painting, carving, tempering and other processes.

Cloisonné technology has gone through the Ming and Qing dynasties and the founding of the People's Republic of China, and each period has corresponding characteristics, and the imitation of finished products in the Ming and Qing dynasties has not reached the original level. It was not until the 80s that the improvement of production technology and the unremitting pursuit of cultural inheritors made the level of imitation reach a new level and innovated.

Mawangdui unearthed plain gauze clothes. With a length of 128 centimeters and sleeves of 190 centimeters, this gauze weighs only 48 grams, less than a tael, and can even be folded into a matchbox. It can be said that it is as clear as smoke and as thin as cicada wings.

It is also a representative work of the Western Han Dynasty yarn weaving level, and it is the pride of Chu and Han culture.