My system is not decent

Chapter 1802 Dragon pattern rectangle, advanced technology
To talk about the largest "mirror" in the world, we have to go back to Qilu in 1978.

The reason why Chen Wenzhe knew it must be because he was from Qilu.

It is impossible for him not to know such a famous thing and such a credit to the Qilu people.

It was also accidental to find this mirror, when the Jiaoji Railway was being expanded.

When it was repaired to a large earth bag, many ancient tomb bricks were accidentally discovered;
Needless to say, there must be an ancient tomb below.

According to the locals, this should be the tomb of a "son-in-law" in ancient times.

But as the excavation of the archaeological team advanced, this statement was quickly overturned.

The reason is also very simple, because before the main tomb appeared, five large-scale "accompanied burial pits" first appeared in front of everyone;
The main tomb has not yet been found, and more than 1000 pieces of various precious cultural relics have been unearthed just for the "accompanied burial".

An ancient tomb of this scale is obviously not something a "son-in-law" can enjoy.

Archaeologists inferred from the cultural relics found in the tomb that this should be the tomb of a certain king of the "Qi State" during the Spring and Autumn and Warring States Periods;

Speaking of "Qi State", if we look at it according to historical records, the first generation of monarch should be Jiang Taigong in "Feng Shen Bang".

Almost the whole of Qilu is the sphere of influence of "Qi State".

After Liu Bang pacified the world, the "King of Qi" here became the fiefdom of his eldest son Liu Fei.

Of course, "Liu Fei" is already in the Han Dynasty.

But this ancient tomb dates from the Spring and Autumn Period and the Warring States Period;
Let's talk about the prosperity of "Qi State". Taking Liu Fei as an example, historical records record it as "[-] households". The previous Qi State was also the best among the princes.

These do not seem to be enough to explain the prosperity of "Qi State".

With the unearthing of an ancient bronze mirror, the world has a new understanding of how powerful Qi is;
This ancient mirror is called "Dragon Pattern Rectangular Bronze Mirror" today.

Its overall height is 116 centimeters, equivalent to about 1 meter 2.

The weight alone is about 120 kilograms, but the thickness is only 1 centimeter.

It is also the thickness of 1 cm that experts call "advanced technology";
Speaking of this, some friends may not understand. Today's mirrors are less than 1 cm thick. How could a mirror in ancient times become "advanced technology"?

This also starts with the origin of the "mirror". The earliest ancient people did not have a mirror to arrange their clothes, but used water as a mirror, which was called "supervisor" in history;
Later, "supervisors" made of pottery and bronze appeared.

To put it bluntly, it is a container such as a "basin" that holds water.

It was not until the Qin Dynasty that the real "bronze mirror" appeared.

However, judging from the "dragon-patterned rectangular bronze mirror", the earliest bronze mirror should have appeared in the Spring and Autumn Period and the Warring States Period;
Here, the historical records shall prevail. Even in the Qin and Han Dynasties, the so-called "bronze mirrors" were still small and mostly round, which is related to their bronze material.

The "bronze mirror" has a small area and must be convex, so that it can reflect the basic outline of a person, and at the same time it is destined to be extremely thick;
If the "bronze mirror" is made bigger, it is difficult to polish the mirror surface with the technology at that time.

Second, its own weight and mirror thickness will reach an unpredictable level.

Moreover, it is difficult to guarantee that the image in the mirror is still a "normal" human figure.

However, judging from the "dragon-patterned rectangular copper mirror", it is obvious that this is a large full-length mirror.

Although the weight has reached more than 100 kg, its thickness is only 1 cm;

This shows that the smelting skills of the "Qi State" craftsmen at that time even reached the world's top level.

They not only need to ensure that the reflected "human figure" will not be too deformed, but also minimize the thickness of the entire mirror. Such a technology is difficult to produce even today.

Of course, some friends may not believe this, because today's mirrors are mostly flat "glass mirrors";
Here we might as well do a simple experiment, take a piece of common smooth metal to see, most of the reflected images are deformed.

But if you want it to show a "normal" image, you must bend the metal sheet to a certain degree.

And the bending degree of this metal sheet was the thickness of the "bronze mirror" in ancient times;
Not only that, but during the Spring and Autumn Period and the Warring States Period, because bronze itself was relatively brittle, even knives and swords used in wars were more than 1 cm thick.

Not to mention, it is necessary to ensure the "normal image", but also to make a beautiful square, and at the same time to ensure its thickness of 1 cm.

In this regard, some experts have done an experiment today. If you want to imitate the "dragon pattern rectangular bronze mirror", the same material and the same shape, but the thickness of the "mirror" made today is far more than 1 cm;

Of course, there are also very complicated decorative patterns on the back of the "dragon-patterned rectangular bronze mirror".

It is even more difficult to carve patterns on such a "thin" bronze ware, and it is even easy to break the entire bronze mirror.

To be fair, leaving aside the thickness and pattern of the "dragon-patterned rectangular bronze mirror", the 1.2-meter-high "mirror polishing" is a very technically difficult project;
After all, its material is relatively rough "bronze". If the same material is used, even if it is polished with "modern machinery", such a large volume is also prone to breakage.

It is also based on such a high technical difficulty that experts call it "advanced technology";
Of course, archaeologists, historians, and even cultural relic restoration experts have not figured out how to make such a huge "full-length mirror" by hand more than 2000 years ago.

In any case, from the technical content of this "dragon-patterned rectangular bronze mirror", we can also see how powerful the "Qi State" was more than 2000 years ago;

Just in 2002, the state promulgated a list of 64 national treasure-level cultural relics "prohibited to go abroad (border) for exhibition", and the "dragon-patterned rectangular bronze mirror" was among them.

If you don't know the situation and just know that this is the largest ancient bronze mirror in the world, then you still have doubts.

Just such a big mirror, as for the prohibition of overseas exhibitions?

However, as long as you understand the situation, you will fully understand that such a high-tech bronze mirror is difficult to replicate until now, and you also know why it is a treasure and why it cannot be exhibited abroad.

A treasure of this level is considered the pride of our people even now.

It can at least prove that some craftsmen in our country in ancient times were really powerful.

This can inspire the spirit of the Chinese people, and can make some people who have been kneeling for a long time, able to straighten their backs a little bit, how can they not be protected?

And how many national treasures like this are there in China?

There must be many, not to mention other things, just a bronze mirror, how many national treasures are there?
Reflecting the world through the mirror——Among the ancient bronze mirrors, as long as they are relatively famous, they all appear in a collective museum in this rural area. This is not a big achievement, right?
(End of this chapter)