These experts and scholars, who had either expressed their opinions or were silent but listened attentively, were all astonished.
After a while.
Jiang Chenggu suddenly felt an inexplicable heat coming from the base of his ears.
Immediately afterwards.
Bang bang bang——
He heard the pacing of his heart - a sign that the blood flow in his skull was accelerating.
Jiang Chenggu subconsciously glanced at the detection bracelet on his hand and found that the real-time heartbeat displayed on the screen had reached...
129.
However, Jiang Chenggu didn't pay any attention to this situation. He swallowed quickly and asked Xu Yun seriously:
"Dr. Xu, are you sure you can see clearly?"
"Below the Nine Halls Underground Palace...is there really another layer of underground palace? And there is no water accumulation yet?"
Although Jiang Chenggu was extremely emotional at this time, he still maintained the most basic sobriety.
Although his tone was urgent and serious, it was not high-pitched and he did not lose his temper to the point of shouting.
The communication range of sound is still kept within a few meters of the surrounding area.
Swish——
At the same time, as Jiang Chenggu asked these questions, everyone else's eyes also focused on Xu Yun, waiting for Xu Yun's confirmation.
Facing everyone's gaze, Xu Yun nodded again neatly:
"Yes, Director Jiang, according to the detection results of the gravity gradient instrument, there is indeed another layer of underground palace below the Nine Palaces."
"The confidence level of this detection result is very high. It is not the uncertain speculation of 'suspect' or 'possibility' in common concepts, but a solid conclusion."
"As for the determination of water accumulation...Director Jiang, this is the most basic category in the field of gravity remote sensing mapping."
"Not to mention the gravity gradiometer, ordinary microgravity remote sensing equipment cannot make mistakes."
Xu Yun's tone was firm.
This is somewhat contrary to his usual stubborn...ahem, conservative style.
After all, the content they were communicating at the moment did not allow him to hide his clumsiness.
Moreover, the concept of determining water accumulation is the basis of gravity remote sensing mapping.
As we all know.
Gravity changes on the earth's surface are basically caused by material migration, and the variable that changes the most on short time scales on the earth is water.
Therefore, remote sensing mapping of water can be called the source of all evil in the field of surveying and mapping. Just like the fragments of the starting point, it is a must-learn knowledge when entering the industry.
Therefore, as early as the 1970s, international water gravity detection technology was already very mature.
Of course.
The sentence above refers to the normal area.
Some places in North America are close to the North Pole, so their mass changes are measured using a model called GIA... which is post-glacial rebound, which is an abnormal situation.
In 2003 and 2009, the country conducted two rounds of microgravity remote sensing exploration of Yongling.
The results of the two rounds of detection were not ideal, and they could not detect any important cultural relics inside Yongling. Only two situations were determined.
First, the Yongling Tomb is the same as the original Dingling Tomb. The interior is similar to the "A" shape, and the underground palace has a total of nine side halls.
The second is that the water accumulation inside Yongling is extremely serious.
At the original technical level, it was possible to detect the water accumulation inside Yongling, let alone the detection capabilities of today's gravity gradiometer.
Then Academician Pan on the side took the detection results from Xu Yun and looked at them for a while, then turned over a few pages, and his eyes suddenly focused:
"Hmm? This is..."
When Jiang Chenggu saw this, his heart suddenly tightened:
"Academician Pan, what's wrong?"
"Oh, it's nothing, it's nothing, I just thought of some other things."
Academician Pan finally came to his senses. He quickly glanced at Xu Yun, handed the report back and said:
"Director Jiang, in short, Xiao Xu is right, there is indeed an underground palace below the Nine Palaces."
"The area of the lower underground palace is about 50 square meters, which is equivalent to 20% of the left and right side halls, and there is indeed no feedback from water accumulation."
"..."
Although it is a bit puzzling to understand Academician Pan’s temporary abnormal expression.
But Jiang Chenggu quickly retracted his attention and focused on what they were discussing now.
Seeing that both Master and Disciple Pan were so sure of the existence of the lower underground palace.
Jiang Chenggu's heartbeat not only did not drop to the normal value, but it quickly increased a lot:
"So Dr. Xu, are there any objects inside this new underground palace?"
When saying this.
Jiang Chenggu stared at Xu Yun, fearing that he would hear a negative or 'undetectable' answer.
However, Xu Yun looked very impressive this time, and he quickly nodded again:
"Yes, according to reports, there are a large number of closed boxes stored in the lower underground palace, occupying about 80% of the tomb area."
"There is an obvious metal gradient difference on the outside of these boxes, and inside the boxes...a large number of stacked, book-like shadows were detected. The main gradient value is..."
"Tree pulp organic matter."
boom--
Xu Yun's words were like a neon boy's mushroom bomb, exploding in everyone's hearts.
The scene suddenly became like Hiroshima after the explosion, and it became audible.
even......
It was even quieter than before when I heard that there was an underground palace at the bottom.
Except for Academician Pan, who had already seen the gradient detection report, everyone seemed to have turned into a sculpture.
Phew~~~~
Just at this time.
A slightly strong wind blew in the distance.
Everyone's hair immediately fluttered in the wind, and the wig of Engineer Ma, who was in charge of network security, was even blown aside.
But everyone is still like a scarecrow standing in the wind in a wheat field, motionless in the wind.
This news is really shocking...
After a while.
Weng Tong rolled his eyes a few times and came to his senses first.
He suddenly took a big step forward, put his hands heavily on Xu Yun's shoulders, and even said with a hint of trembling in his tone:
This chapter is not over yet, please click on the next page to continue reading! "Xiao Xu...how big are the boxes and books you are talking about, and how many are they? Tell me quickly!"
Weng Tong's not-so-tall body burst out with amazing strength at this time, so much so that Xu Yun's shoulders were a little painful from being scratched.
However, Xu Yun didn't care about this feeling and quickly turned the report to the next page.
It is different from the content on the first page.
The report on the first page contains information about the accumulation of water and the scale of the underground palace, which is a summary at the beginning.
Therefore, Xu Yun can report relevant situations without much need for comparison.
But the new page is different.
This page contains a large amount of gradient data, so even Xu Yun must use the nearby database to analyze it.
"The benchmark for 0.0006T should be 1.2..."
"△4.65...that's about 52 centimeters..."
"Right marked character 5T-3, oh, found...30 centimeters."
After a while.
Xu Yun just raised his head from the operating table.
At this moment, even Xu Yun himself was not aware that his hands holding the data report were trembling slightly.
Then he glanced at Weng Tong who couldn't wait, took a deep breath, and said:
"Uncle Weng...Professor Weng, based on our data comparison, the final internal situation of the underlying underground palace is as follows..."
"There are a total of 18 boxes with metal gradient feedback in the underground palace, and the specifications are 1.5x2x1, and the unit is meters."
"Some of the boxes are stacked... one box on top of another."
"There are tree pulp organic matter 50 centimeters long, 30 centimeters wide and 3 centimeters thick inside each box. It can basically be determined that they are books placed vertically inside the box."
The words just fell.
Weng Tong on the side picked up a pen and paper from the table and started calculating alone.
Although Weng Tong is a solid liberal arts student, at this moment, he burst out with unprecedented mathematical literacy:
"1.5x2x1, the volume of a box is 3 cubic meters... Well, 3 cubic meters is correct."
"The volume of a book is 0.5x0.3x0.03 which is 0.0045 cubic meters, so a box can store 667... No, this cannot be rounded, it should be able to store 666 books."
"If these books are tied with ropes or placed on bookshelves, then the quantity should be smaller...it would be better to put 650 in one box."
"650x18 is..."
That’s it.
Weng Tong's pen tip suddenly punched a hole in the calculation paper.
However, he didn't care at all and quickly wrote the answer to the calculation in another blank space:
11700.
Then Weng Tong slowly raised his head, looked at his old partner Tong Huaijun, and murmured:
"Old boy, what are the specifications of the Yongle Ceremony?"
Tong Huaijun took a deep breath and said slowly:
"The Yongle Dadian was completed in the sixth year of Yongle, with a total of 22,877 volumes, a catalog of 60 volumes, and 11,095 volumes."
"According to statistics from the "Supplementary Biography of Shangshu" and the few existing copies of Yongle, the original "Yongle Dadian" is large in scale, with a single volume..."
"Height is 50.3 centimeters, width is 30 centimeters, and thickness is about 2-3 centimeters."
have to say.
Tong Huaijun, who is also the docent of Jinling Museum, has a very magnetic and charming voice.
It was as long and sweet as an old wine, and for a moment everyone was in a trance.
But soon.
This artistic conception was broken by Huang Yuting:
"So...Professor Weng, Professor Tong, those boxes under the underground palace contain the "Yongle Dadian"?"
Tong Huaijun nodded when he heard this, took a deep breath, and was about to speak:
"That's right, it's probably "Forever..."
As a result, before Tong Huaijun finished speaking, he was quickly interrupted by Weng Tong:
"No, definitely not!"
Tong Huaijun turned his head and stared at Weng Tong blankly:
"?????"
Tong Huaijun's expression at this time is quite similar to the expression that teacher An Tianxu had when he played the wrong song at the Tchaikovsky International Music Competition.
Xu Yun, Jiang Chenggu and others were also stunned.
What's going on?
According to the data published by Xu Yun, the books in the underground palace are almost certainly the "Yongle Dadian" - this was calculated by Weng Tong himself.
Why did he start to deny it now?
Then under the eyes of everyone, Weng Tong continued to say uncharacteristically:
"The number of books does not mean anything. I personally think that the contents in the box should be blank pages or other books that were buried with Jiajing. In short, they cannot be the "Yongle Dadian"."
"If the "Yongle Dadian" really exists in the underground palace of His Highness the Ninth Prince, I will eat the ax that is still in Rongcheng on the spot!"
Everyone:
"...."
Xu Yun also opened his mouth, wanting to say that utilitarian milk is not advisable.
But after seeing Weng Tong's tense facial muscles, he gave up the idea.
In the past two days, Xu Yun and Weng Tong have also been in contact several times.
Based on Weng Yujing's previous introduction, he had a rough impression of the old comrade Weng Yujing mentioned.
be honest.
Weng Tong and Xu Yun have almost the same image of the previous generation.
He has a steady personality and is unsmiling. He only relies on listening to books to read novels. He pays attention to efficiency and never talks nonsense...
But he is such a rigid uncle.
In order to ensure that "Yongle Dadian" can be successfully released, it even "humbled" to the point of actively setting the reverse flag.
Maybe for Weng Tong personally.
There must be some reasons why "Yongle Dadian" must be unearthed smoothly...
Therefore, for the first time, no one at the scene, including Xu Yun, Lu Chaoyang and others, tried to break Weng Tong's flag.
Then a while passed.
Lu Chaoyang, who had been silent until now, suddenly raised his hand and asked Xu Yun:
This chapter is not over yet, please click on the next page to continue reading! "Speaking of Xiao Xu, I have a question that I haven't figured out yet. Isn't it convenient for me to ask it now?"
Xu Yun turned his head to look at him and said cheerfully:
"What's the problem? Professor Lu, just say it."
Lu Chaoyang thought for a while and pointed to the ground twice with his index finger:
"Xiao Xu, let me ask you first, how thick of soil is there between the Nine Halls Underground Palace and the Lower Underground Palace?"
Xu Yun glanced at the report and quickly reported a value:
"The thickness of the soil from the top of the lower underground palace to the bottom of the Nine Halls underground palace is about 6 meters."
"Six meters...that's almost two floors, right?"
Lu Chaoyang gestured to a height in the air and asked again:
"This soil thickness is only average for the depth of the underground palace. So why is there no water accumulation in the lower underground palace when the drainage system of the Nine Palaces Underground Palace completely fails?"
"This thickness is not to mention rain and floods. Over hundreds of years, only the accumulated water in the upper layer has penetrated. I guess it should have seeped in."
I heard this question from Lu Chaoyang.
Jiang Chenggu, Huang Yuting and others also nodded lightly.
Lu Chaoyang's words happened to be the doubts in their hearts.
It was introduced earlier.
For buildings like imperial mausoleums, it is extremely common for water to accumulate in the underground palace.
It can be said that there are few imperial mausoleums and underground palaces that do not accumulate water.
However, water accumulation also varies in severity, and the degree of water accumulation in different imperial tombs is different.
For example, some are more than ten centimeters.
Some are half a meter.
Some are one or two meters, etc.
Among them, Yongling is the most serious one - there are currently more than 30 imperial tombs surveyed by remote sensing mapping in China, and none of them have water accumulation levels exceeding Yongling.
In other words.
The drainage system of Yongling has been completely scrapped. In this case, how could there be no water in the lower underground palace six meters below the Nine Halls?
After Lu Chaoyang finished speaking.
Zhang Ziang, the engineering boss, also coughed slightly and gave his opinion on the data:
"Xiao Xu, actually I wanted to ask you just now. It's really strange that there is no water in the underground palace at the bottom."
"Because according to the soil samples we collected previously, the soil in Yongling is a saturated soft soil layer, with a void ratio of about 1.3 and an undrained shear resistance of 22.45KPa."
"This is standard lagoon soil formed in the late Quaternary period, almost the same as that over Dingling."
"I did a simple calculation based on the data of Dingling. Logically speaking, the 14 meters below the Nine Palaces should be the water seepage area. The 6 meters area should have at least 1/3 or even 1/2 of the volume of the underground palace filled with water.
..."
Looking at the people with doubtful faces, Xu Yun subconsciously looked at each other with Academician Pan.
After a while.
A smile suddenly appeared on the two people's faces in perfect harmony.
Then Academician Pan took a deep breath, looked around the crowd, and said:
"Yes, if we look purely at the soil conditions, there should indeed be a lot of water in the underground palace under the Nine Palaces."
"But the question is...Xiao Xu, did he say before that the outer wall of the underground palace...is an ordinary soil layer?"
Everyone was stunned for a moment.
Then Jiang Chenggu reacted first, and a vague guess emerged in his heart:
"Academician Pan, what do you mean..."
Academician Pan did not answer his words, but continued:
"In fact, in addition to the water accumulation mentioned by Xiao Lu, there is another aspect of the underground palace on the ground floor that is difficult to explain with standard logic, that is, it does not comply with etiquette."
"The layout of imperial tombs in ancient China must abide by fixed regulations, such as site selection, orientation, and the layout of the underground palace."
"The layout of the nine tomb chambers is the standard ritual system of the Ming Dynasty. Even if Jiajing reigned for forty-five years, it would be difficult for him to break this rule - so many people would rather think that the "Yongle Dadian" was stored in the left side hall.
I don’t believe Jiajing will dig another lower underground palace.”
Hear this.
Even though they were still puzzled by the problem of water accumulation, the two archaeological experts Weng Tong and Tong Huaijun nodded.
These words spoke to their hearts.
Mentioned earlier.
Those who believe that the "Yongle Dadian" exists in Yongling can be divided into three factions.
They are the Adventists who believe that Yongling is located in the left side hall.
The Salvationists believe that Jiajing opened a secret room on the same floor of the underground palace to store the "Yongle Dadian" separately.
And Jiajing dug a second floor under the underground palace to house the survivors of the "Yongle Dadian".
Among them, the reason why the survivors do not agree with the rescuers is that opening a secret room on the same floor of the underground palace violates etiquette, and the government and the opposition will definitely oppose it strongly.
But in fact.
The views of the surviving faction are also inconsistent with the Ming Dynasty's rules for imperial tombs.
Because theoretically, the area where the emperor's coffin is located leads to the 'end of the earth'.
Wouldn't it be a bit embarrassing for you to dig a secret room at the bottom of the earth?
It’s just that the etiquette of the Ming Dynasty did not explicitly prohibit this kind of behavior, so the survivalists were more accepting of it than the salvationists—but only a little.
The reason why many people adhere to Survivalism is actually not because they really believe in it.
But because the possibility of the Salvation Sect is almost zero, and the Adventist Sect believes that the left side hall must have been flooded long ago, and the "Yongle Dadian" is already in the same mess as Fanfan even if it is placed inside.
Therefore, many people choose the survivalist faction out of the perspective of good expectations.
But the current discovery has verified the views of the survivors. For professionals like Weng Tong and Tong Huaijun, it is obviously impossible to say that they have no doubts.
It's just that before, all their thoughts were focused on exploring whether the "Yongle Dadian" existed in the underground palace at the bottom. As for the fact that the underground palace existed at the lower level, they temporarily put it aside with the idea that its existence was reasonable.
But now I hear Academician Pan say this...
This is indeed a bit strange.
Accumulation of water, ritual system.
These two logical problems appear at the same time, which cannot be explained by coincidence.
Then, looking at the confused faces of everyone, Academician Pan stopped showing off:
This chapter is not over yet, please click on the next page to continue reading! "Everyone, I just saw the results of the report, so I have the audacity to say something more enlightening from the perspective of God, that is..."
"Your thinking has actually fallen into a misunderstanding."
Jiang Chenggu was stunned:
"Misunderstanding?"
"That's right."
Xu Yun nodded and took over the conversation from Academician Pan:
"In everyone's perception, the so-called underground palace refers to a space dug out from the ground, which is equivalent to the basement in our modern buildings, right?"
"But have you ever thought about another possibility..."
"Then it's not necessarily a dug-out basement located deep underground, but it could also be a box that's been 'buried'?"
"..."
Hear this.
A question mark appeared on everyone's faces:
"?"
But soon.
Weng Tong was the first to react, his eyes widened:
"Wait a minute, Xiao Xu, you mean... that the lower underground palace is actually a huge box buried underneath?"
"That is, the books are sealed in a box, and there is a shell on the outside of the box?"
"bingo!"
Xu Yun gave Weng Tong a thumbs up, and a hint of emotion appeared on his face:
"The biggest difference between a 'box' and a 'basement' is that the basement has a walkway to the ground, but the box buried underground does not."
"According to the detection of the gravity gradient instrument, there is no connecting passage between the ground floor underground palace, the nine palace underground palace and the ground."
"That is to say, Jiajing first dug out a huge pit, stuffed the 'box' underground, and then built the nine-hall underground palace above."
"In this way, there will be no so-called problem of destroying the layout. Jiajing's talent point is indeed wrong..."
Jiang Chenggu and everyone:
"????"
Mom?
Is this tmd okay too?
But think about it carefully...
Does it really seem to make sense?
The so-called destruction of etiquette and destruction of layout refers to matters related to 'architecture'.
But if you just stuff a 'box' under your coffin and don't build a passage...
Then this has nothing to do with architecture.
Just like a real homestead.
You can't build a basement due to Feng Shui reasons, but you can bury a bottle of wine under your homestead, right?
According to the comparison of the area of nearly 1,000 square meters of the upper underground palace, the lower underground palace is equivalent to burying a refrigerator under your own home.
His behavior is weird, but there are really no problems with the rules.
Judging from Jiajing's unique attributes and its enthusiasm for "Yongle Dadian", it seems that it is really possible to do such a thing.
Then very quickly.
Weng Tong realized another thing:
Since it is a box, it must have six closed sides.
In addition to what Xu Yun said about blocking accumulated water, there are not many optional materials for these 'surfaces' - after all, they have been blocking water for more than 400 years.
According to the information Xu Yun mentioned before.
The area of the lower underground palace is about fifty square meters, and many of the boxes containing books are stacked.
So let’s calculate the height of the ‘box’ as 3 meters.
Assuming it is a cuboid with a base of 7X7, then the total area of material required on the six sides is...
7x7x2 7x3x4......
182 square meters.
Think of this.
Weng Tong could not help but ask Xu Yun:
"Xiao Xu, what is the outer wall of that box made of?"
"Copper? Or pure gold?"
Xu Yun glanced at him:
"The outer layer is copper."
"Is it really copper..."
Weng Tong touched his chin thoughtfully, and this answer did not surprise him.
The total area of the six sides of the underground palace on the ground floor is about 180 square meters, and the volume is 50x3, which is 150 cubic meters.
With the Ming Dynasty's national power during Jiajing's reign, it was not difficult to obtain copper of this size.
Actually.
In the long history of China, there have been many giant pure copper buildings, such as the most famous Four Bronze Halls.
The Four Bronze Palaces have always been known as the Four Golden Palaces because of their superb craftsmanship, high value and splendor.
The most famous among them is the Wudang Mountain Golden Palace located at the top of Tianzhu Peak, the highest peak of Wudang Mountain, also known as the Wudang Mountain Golden Summit.
The Wudang Mountain Golden Palace was built in the 14th year of Yongle in the Ming Dynasty...that is, 1416. It is the earliest of the four major golden palaces.
There is a statue of Emperor Zhenwu inside, which weighs about 400 tons. It is made entirely of copper and gilded. It is still magnificent after more than 600 years.
There is also the heaviest Wutai Mountain Bronze Hall.
Daxiantong Temple, located in Wutai Mountain, one of the four famous Buddhist mountains, is a traditional architectural structure with double eaves and a mountain top. It weighs 500 tons and is the heaviest existing copper temple in my country.
The Wutaishan Bronze Hall was built in the Wanli period of the Ming Dynasty...that is, in 1608, which is later than the Jiajing era. It is integrated and seamless from the inside to the outside.
The Wutai Mountain Bronze Hall is 4.7 meters wide, 4.5 meters deep, and 8.3 meters high, with a total volume of about 175 cubic meters.
The largest copper hall is the Mingfengshan Bronze Hall, which is 6.7 meters high, 6.2 meters wide and 6.2 meters deep, with a total volume of 257 cubic meters.
Therefore, based on Jiajing's ability, there is no feasibility problem in forging such a copper palace to seal the "Yongle Dadian".
At the same time, the copper palace is fully enclosed... or the water-proofing ability of the copper box. Needless to say, there are many examples of cultural relics preserved in sealed copper boxes that have not been corroded in archaeological history.
Think of this.
Weng Tong could not help but exhale slowly:
"Thanks to Jiajing, this is such a big gesture..."
However, he had not yet finished expressing his emotions.
Xu Yun's voice sounded in my ears again:
"Professor Weng, in addition to the outer copper layer, the interior of the lower underground palace is also wrapped with a layer of material to reinforce the waterproof effect."
"Is there any more inner layer?"
Weng Tong blinked, but soon he was relieved:
"This is normal. We have found similar situations in many ruins. There are often other materials attached to the inside of the metal shell, such as gold plating."
"Xiao Xu, what is the internal material of the underground palace's copper shell?"
Xu Yun raised his head and glanced at him:
"Golden nanmu."
........
Note:
I saw a classmate mentioned room temperature superconductivity in the comment area, so I would like to briefly share my views.
First of all, although this technology is at room temperature, it actually requires high pressure to complete. The pressure is 10kbar - note that it is kbar, which is 10,000 atmospheres, not 10kPa.
That is to say, normal temperature and normal pressure superconductivity is still far away, and this technical path has nothing to do with controllable nuclear fusion...
In addition, this publisher is Dias, who has done many controversial things. Many people are saying that his paper has been retracted, but in fact the biggest black history is metallic hydrogen - yes, he was responsible for the metallic hydrogen incident.
Yes, it's still a joke to this day.
Finally, a little tip: when you see a certain technological achievement being touted by a bunch of financial bloggers, be prepared for the news to be distorted.
I coded 47,000 words in five days, please vote for me!!!!
