(Thanks to the leader of "Ye Nian Ling" for the reward. It is three-in-one and the word count is slightly less. I will add a big update in the morning to make up for the word count. From today on, I will be a person who does not owe updates.)

Cheng Mo swept away the tiles, and what appeared in front of Cheng Mo was a piece of golden bronze. Even at night, it formed a sharp contrast with the black tiles next to it.

If a different person were here, he would not have any reaction at all when he saw the bronze roof. Even Cheng Mo, if he had not read Professor Yang’s book, and if his father had not probably studied the architecture of Qin Shihuang’s mausoleum, he might have ignored it.

, will definitely not be so surprised.

After all, bronze can be seen everywhere in Qin Shihuang’s mausoleum. It’s not surprising that the roof is made of bronze, right? Bronze “elevators” have appeared, and the bronze roof is not fantasy at all in comparison. What’s so surprising?

Just a fuss.

Even Cheng Mo, like most people, would take all the "strange" things happening around him for granted because he was in a ruins place, because this was another world.

But his father's investigation made Cheng Mo alert, so he had a suspicion about the metal roof appearing above the Xiangtang. You must know that the situation in front of him is completely inconsistent with the description of the construction technology of Qin Dynasty buildings in the book. It stands to reason.

Said that what he saw should be a gray gray back made of messy residue and lime pressed, not such a shining bronze

For those who don't know about ancient architecture, they won't know that China has taken the mortise and tenon structure to the extreme, nor that Chinese architecture uses wooden frame structure as the main structural method, which is in sharp contrast to the stone structure of the West.

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There are many reasons why the East and the West developed in two completely opposite directions. One of the reasons is that the Chinese people are so smart. Ancient Chinese architects were able to make full use of the principles of mechanics and broke through the inability of wooden materials to support tall buildings.

In addition to the limitations of materials, there is another point that causes the difference in the development of Chinese and Western architecture, that is, waterproofing.

Whether in the West or the East, waterproofing is a difficult problem that must be solved in construction.

Especially in China, most areas have relatively rainy weather, and the house structure is still a wooden frame structure. If the problem of water drainage is not solved, there will be no room for development of China's wooden frame. Therefore, the waterproofing technology of ancient Chinese buildings is also the pinnacle, and is still used by countries around the world today.

The design used by architects.

Chinese roof construction is an important part of Chinese architecture. Cheng Mo's "History of Ancient Chinese Architecture" that Cheng Mo read today mentioned this. It can be said that the foundations and roofs of Chinese architecture are all designed to be waterproof.

The thatched roofs built by Homo sapiens in the late Stone Age cannot prevent leakage, let alone build roofs with small slopes and large spans. New waterproof materials must be created to make this possible.

The birth of tiles brought about huge changes in Chinese house construction and ushered Chinese architecture into a new era. Judging from the unearthed cultural relics, tiles first appeared in China in the Western Zhou Dynasty. They also developed copper tiles, iron tiles and glazed tiles, and these tiles were developed in Europe until

It only appeared in the 17th century.

At this moment, Cheng Mo was surrounded by a pile of black tiles carved with running deer, standing horses, four beasts, and three cranes. They were rolled as densely as stones and struck like chimes. On the back of the tiles, there was "Zuo Sixian Wa" engraved on them.

Small seal script and number. The tiles are divided into slab tiles, tube tiles, and half tiles. (The slab tiles are laid on the roof with their backs.

, the tube tiles are covered between two rows of tiles. The tiles are the tile heads of the tube tiles in front of the eaves. There are tile nails and tile rings on each tile to fix the position of the tile, and the tile nails and tiles are still separate.

It is completely different from the Qin Dynasty tiles that Cheng Mo saw in the museum with tile nails and tiles integrated into one piece.

In short, it can be said that the production technology of Xiangdian tiles is still outdated today.

However, this is not the focus of Cheng Mo. The point is that tiles cannot completely block water leakage, so matching roof construction methods have been developed. Cheng Mo did not look at the specific methods carefully, but he knew that there was absolutely no bronze or copper among them.

The roof is made of pieces, which goes against common sense.

At this moment, in front of Cheng Mo, the tile hanging strips used to hang tiles across the roof were not the traditional wooden tile hanging strips in ancient times, but bronze tile hanging strips. From this point alone, it can only be said that Qin Shihuang was rich and willful, but if

It would be incredible if the entire roof was made of bronze

Cheng Mo stood up from the roof with doubts in his mind, and couldn't wait to lift the tiles of the entire sloped roof. As expected, the entire roof was made of a one-piece bronze roof, which was connected to the bronze ball at the top of the spire. This

Cheng Mo was a little stunned.

You must know that the fully enclosed metal coil "lead-tin back" did not appear until 500 years ago, but it was just a lead-tin alloy melted and cast into a plate about one centimeter thick, and welded into a whole, also known as "tin pull"

"Back" or "Tin Back", the Qin'an Hall in the Imperial Garden of the Forbidden City uses this kind of waterproofing technology. This is already a willful thing for those who have enough money and technology (metallurgy technology). Unexpectedly, 2000 years ago, China built

More willful buildings emerged.

Cheng Mo stood on the spire and looked down. Through the bronze hanging tiles mounted above, the entire bronze roof was as smooth as a mirror, and he could even see a blur of moonlight. This is really beyond cognition. Modern people can see such a large area.

The copper sheet seems okay, but in ancient times this was not an easy task. First of all, the casting level was not high, and it was difficult to control the flow of copper liquid, causing the roof to deform, especially since it was a sloped surface.

This alone will instantly kill other civilizations at the same time.

It's really incredible.

Cheng Mo squatted down and knocked on the bronze roof again. What was even more unexpected was that it was not a copper sheet. Its sound was not crisp at all and was very dull. In an instant, Cheng Mo judged that the roof was very thick, at least thicker than

Fifteen centimeters higher, how can the wooden frame withstand such a heavy roof?

You must know that this is still a triple eaves building.

No wonder my father wanted to find Professor Yang.

Cheng Mo jumped off the roof of the Xiangdian and ran into the Xiangtang quickly. He checked the wooden columns in the room one by one. In a house with a wooden frame structure, the walls are not load-bearing. The entire weight of the house is concentrated on the columns through the beams.

, such a heavy roof cannot be supported by ordinary wooden columns.

Cheng Mo knocked hard with his knuckles a few times on the red-painted wooden pillars surrounding the entrance of Xiangtang. Listening carefully to the sound, it seemed a little weird. With Carrier's current mastery of sound waves, Cheng Mo could easily hear the sound.

Two frequencies came out. The tone that reached his ears first was relatively high, and the latter tone was relatively low. This also meant that the cylinder in front of him was composed of two objects, one with low density and one with high density.

Thinking of the last time he was kicked by Bai Xiuxiu and he was leaning against the pillar, the pillar actually didn't move the tattoo. It was a bit hard beyond his expectation. Cheng Mo was even more confused. He looked around and saw a lot of bronze swords and crossbows falling in the corridor.

, he ran over and picked up a bronze sword from the ground, returned to the pillar, waved his hand and slashed directly towards the red paint column, and the bronze sword immediately slid deeply into the wooden pillar.

Cheng Mo took out the bronze sword and chopped it randomly a few times. Wood chips flew everywhere, and soon he heard the sound of gold and iron. Cheng Mo threw the bronze sword at his feet, peeled off the thick wood, and saw

The wood is wrapped with a golden "bronze core".

Cheng Mo was stunned. It turned out that this Xiangtang appeared to be a traditional Chinese wooden structure, but in fact it was an out-and-out bronze palace, or a "golden palace".

Cheng Mo later used a pulse laser beam to cut open the bronze roof and explore how the bronze elevator was started. As expected, it was a winch driven by "human power" connected to the pulley block device. Each set of elevators required four people to push the handle and wind the rope.

to this vertical axle

Above. There is a rope between the winch and the main crane. This rope is wound around the main wheel over there. This is the most basic principle of the transmission system. When the rope on the winch is wound around the big wheel, the rope on the wheel shaft

The small wheel will wrap and pull up the rope on the "cage"

Considering that the Qin Dynasty could hoist huge stones so deep into the ground, it is not surprising to create this kind of "human elevator". There is this kind of hand-cranked cage device in "The Great Wall" shot by Zhang Yimou. And this kind of

The reason why the system is not popular is probably because there is no need. Except for buildings such as Qin Shihuang's Mausoleum, which are buried hundreds or thousands of meters deep, and require such elevators, other buildings really do not need to go through such a thankless effort.

These deep wells must have been filled in after the construction of the tomb was completed. The reason why there was no record, Cheng Mo guessed, was because Qin Shihuang and Qin II killed all the craftsmen who built the tomb.

After figuring out what he wanted to figure out, Cheng Mo spent a lot of effort to return to the fifth underground floor of the mausoleum, reset the activation point and returned to his body.

The discovery of the Bronze Palace made him know why his father came to find Professor Yang. For both historians and anthropologists, the emergence of buildings with craftsmanship beyond the times more than two thousand years ago is a shocking event.

It's a pity that the Bronze Palace only exists in the ruins of the other world. In reality, it should have been demolished by Xiang Yu long ago and became his own property.

However, although the Bronze Palace is magical and incredible, it is within the scope of imagination. It is reasonable for the Qin Dynasty to cast such exquisite bronze carriages, bronze tripods, and bronze weapons to build a Bronze Palace.

So why is his father as obsessed with the words engraved on the "Calling Soul Flag" as he is? The reason why Cheng Mo went to ask Professor Yuan specifically was because of his thirst for knowledge and because he had the habit and hobby of getting to the bottom of things. In addition, Cheng Mo has always

It is believed that the understanding of a thing is accumulated from some trivial things. Most people do not have the ability to see through the essence of things at a glance. They can only explore and find the "fundamental" through some observation of "appearances".

path.

Some appearances seem insignificant, but they may be crucial; some appearances seem very important, but are insignificant. The answers to these must be found in practice, and cannot just rely on feelings and impressions.

During the day, Cheng Mo went to see Professor Yuan Zhongyi again and asked him a lot about Qin Shi Huang's Mausoleum. He also asked Professor Yuan what books he should read if he wanted to understand Qin Shi Huang's Mausoleum.

However, there are not many books in China that specifically introduce the Mausoleum of the First Emperor of Qin. Except for the "Archaeological Discovery and Research of the Mausoleum of the First Emperor of Qin" written by Professor Yuan himself, there are not many other books to refer to. Compared with the Mausoleum of the First Emperor of Qin, which has not been excavated, it is only the Terracotta Warriors of the Qin Dynasty.

and Bronze Wares have been written by Professor Yuan, there is no need for others to publish a separate book, including Professor Yang, who has not published a separate book on the Mausoleum of Qin Shihuang.

So Yuan Zhongyi recommended "Chinese Emperors' Tombs" and "Ancient Tombs" to Cheng Mo, and also gave Cheng Mo a complete version of the documentary filmed by CCTV on Qin Shihuang's Mausoleum, saying that many of the interviews were not broadcast on TV.

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Cheng Mo was extremely grateful and said goodbye to Yuan Zhongyi. Before leaving, Yuan Zhongyi told Cheng Mo that it was okay to rob tombs, but remember that the property must be handed over to the state.

Cheng Mo was stunned for a moment, not knowing whether Professor Yuan Zhongyi was joking or serious, so he could only nod in agreement.

Taking the full version of the documentary given to him by Yuan Zhongyi, Cheng Mo went to Gulou Bookstore again to replenish two books, and also bought a laptop with a CD-ROM drive. Then he returned to the hotel and began to frantically add knowledge about Qin Shihuang's Mausoleum.

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After watching the documentary given by Yuan Zhongyi, especially the part where the reporter interviewed Yang Hongxun, and listening to Yang Hongxun's description of the underground palace in his imagination, Cheng Mo felt more and more that things were not that simple. A single Bronze Palace,

It seems to be just a part of this huge mausoleum.

However, Cheng Mo felt that this was just his own wild conjecture. His idea was too crazy and unrealistic. If it weren't for the existence of the Chosen System, he would definitely only think it was a joke. Now he thinks that everything can only be achieved when

Only the underground palace knows if there is even the slightest possibility.

Although Cheng Mo had no hope, he was also looking forward to the moment when he arrived at the underground palace.

—

Finally, the day to reach the underground palace is getting closer and closer. Cheng Mo and the others spent two days clearing the fifth and sixth floors. However, when they reached the third floor, there were fewer and fewer rooms in the maze, and each room became more and more difficult. Even if

Cheng Mo and the others cooperated skillfully, but they still got them stuck here.

However, judging from the kill list, the progress of the four teams is almost the same. Only Jin Jinhan of the first team is far ahead, surpassing Du Leng, who is currently in second place, by a large number of values.

This also cast a shadow over Cheng Mo's plan.

At this moment, the five people had completed today's monster spawning plan and were about to return to their original bodies, but they were stopped by Guan Bojun's "Wait a minute."

Seeing that everyone was focusing on him, Guan Bojun said, "The problem now is that there are not many monsters on the first and second floors. If it is divided equally among five people, Du Leng may not be able to catch up with Jin Jinhan, shall we?"

Should we find a solution?"
To be continued...