After Ma Xiyuan came to visit her sister, Ma Yiyi's family gradually accepted the latest progress of her daughter playing with Gu.

The next day, Sunday, Gu Yu took Ma Yiyi and hurried to the capital.

Since the beginning of the school year, the two of them have been in school for more than a week. And this wave, it is estimated that I will not be able to return to school until after the National Day.

The plane is a special plane sent by the Ministry of Science and Technology, because it has to transport AMS equipment. It's just that it's much smaller than the last time the Fuso people, because there are no exhibits to be transported, and of course the museum staff are not qualified to accompany them

This exhibit is a national museum that has been stored in the capital, and it is still the most important national treasure. Usually it is not taken out for exhibition, but placed in the underground vault of the National Museum, where the steel and lead plates on the outside of the basement are old and thick.

In addition to Gu Wan, Ma Yiyi, Director Shi, and Senior Wang Yifang, only Director Ning of the Department of Archaeology of the school followed him.

For people in the archaeological field, the temptation of determining the precise year of the alternation of Shang and Zhou is too great, and Director Ning may not be able to wait for such a major achievement as the second time in his life. Therefore, even if you can't be a moderator, but just a participant, it's precious.

Flying from Jiangnan Prefecture to the capital was farther than flying to Fusang Boduo, and two hours later, it landed at the Beijing Airport.

Rows of heavily loaded guards stood by the runway, not squinting, motionless.

That posture is more solemn than the posture of protecting national treasures in Zhou Xingxing's movie "Domestic Lingling Paint".

The Ministry of Science and Technology actually sent a deputy director-level leader of the Department of Basic Scientific Research to personally go to the airport to confirm the condition of the equipment, and then led a team into the city.

"You have a day to rest, to adjust/adjust the situation, to start the appraisal on Monday, to form a report on Wednesday, to report directly to the minister on Friday, and to hold a press conference. ”

The leader spoke very concisely, and every sentence was a real task explanation, and he didn't bother to say polite words to Gu Wan and his party.

On this occasion, Gu Yu can only remain serious.

It's like no matter what Comrade Jackma usually says, laughs and laughs, but when he went to the capital for a committee meeting, when he was photographed by the CCTV camera, he only dared to smile and wave his hand slightly, and his expression was solemn.

In the next two days, as usual, I rested and recuperated my physical condition, and the equipment was assembled and pounded tightly, and there was nothing to say about the process.

In terms of diet and daily life, the Ministry of Science and Technology has arranged it very properly, and it is basically the best expert-level treatment. Every day, it is either Da Dong's roast duck or Feng's shabu shabu, and other famous Beijing foods of the same grade.

We stayed in five-star hotels near the National Museum.

In short, it is the academician of the Chinese Academy of Sciences who participates in the top academic conference in Beijing, and it is also this level of hospitality.

Everything went very smoothly.

……

On Monday morning, just after dawn, Gu Wan and his group of five were escorted and picked up by the security forces.

The Ministry of Science and Technology and the Ministry of Culture each sent a person in charge to take them to the underground vault of the National Museum.

Director Ning of the Department of Archaeology was so excited that he said a few words of gratitude to Gu Yu before leaving.

"Classmate Gu, if it weren't for you, it wouldn't be my turn to dictate this matter. In the future, if there is a place where you want me to help, just say it. ”

Today, Director Ning will serve as a guiding assistant to assist an expert from the National Museum in sample sampling.

Gu Wan always looked very modest: "Director Ning is polite, you are a professor, I am just an undergraduate student of the University of Science and Technology, how can I afford this, it's just a timely meeting." This is God bless China, I don't dare to be greedy for the merit of heaven for myself. ”

The people around him all had a good impression of Gu Play's posture, and felt that this young man really knew how to advance and retreat.

The museum was closed on Mondays, so it was easier to take samples.

When they arrived at the relevant Tibetan hall, a group of heavily armed guards surrounded a glass cabinet on all sides, and then someone opened the glass, and then immediately used a nitrogen cylinder to temporarily replenish nitrogen and oxygen to the bronze storage location, and then transported the Li Gui to a nitrogen chamber next door in a special container.

There, Gu Wan and Ma Yiyi were able to see Director Ning and an expert from the National Museum, carrying an oxygen cylinder and wearing an oxygen mask, operating on Ligui through the thick bulletproof glass.

The solemnity of this step is far greater than that of dealing with the seal of the king of Han and the seal of the king of Guangling in Fusang.

Because in Fuso, the most inert metal, gold, was processed. Gold is not afraid of oxidation, so it is not so delicate.

Bronze, on the other hand, is theoretically safe to operate in an inert gas environment, even though the outside has been completely oxidized and protected by an oxide layer.

When the National Museum was displayed, those national treasure-level bronzes were actually filled with inert gas, and the glass cabinets in which they were stored were also very airtight.

“…… Well, we have taken the charcoal smoke residue at the bottom of the body, as well as the carbonization residue of the early Zhou Dynasty bean food inside the body, which should be used for identification. ”

After Director Ning and the others were busy for a while, they communicated with the outside through the walkie-talkie.

As a result, the experts of the archaeological group over there continued to deal with the aftermath of the cultural relics, while Gu Wan and Director Shi began to separate the samples and conduct AMS identification tests.

The operation process here is exactly the same as the one I practiced in Fuso, so it is very smooth.

The only thing that surprised them a little was that during the experiment, they were told that the samples they were going to measure were not just the carbon marks taken from Ligui's body.

Regarding the identification requirements of this extraneous branch, the person in charge of the Ministry of Science and Technology explained to Gu Wan:

"There is also a set of samples that were escorted from Shaanzhou yesterday. It was extracted from the foundation pit of the site near Chang'an City and unearthed Ligui. If the age of this sample can be identified and corroborated with the age of the carbon-containing residues on the body, the probative power to refute the foreign archaeological community will be even greater. ”

Gu Play doesn't matter, anyway, it's just a matter of repeating the test for him.

A few hours later, after all the experiments were done and the separation data was obtained, Gu Wan submitted a report to the relevant leaders:

"The conclusion is that the C14 isotope abundance of the soot traces of the charcoal fire shows that the age should be 1020 BC, plus or minus 20 years. The carbonization of leguminous food residues, the age of C14 isotope abundance, is 1060 years ago, and the error is plus or minus 20 years. The abundance of C14 isotopes in the excavated foundation pit burials is 1020 years ago, with a positive and negative error of 20 years. ”

The deputy director-level leader of the Ministry of Science and Technology looked at it, frowned, and then handed it to the archaeological expert beside him: "If there is a difference of 40 years, will it have an impact?"

The experts assessed it and euphemistically stated: "This is as it should be, and we are inclined to think that the casting date should be around 1060 BC." Because after the casting is completed, it is reasonable to have a few decades of use before it is buried. ”

The leader listened to the letter first, knowing that the specific report would have to wait for the official report, so he would no longer press questions.

"You guys go back and analyze the data, prepare the report, and show it to me on Wednesday. ”

The group returned to the institute and began to give a presentation.

After knowing the exact age of the C14 isotope identification, it is still necessary to write a lot of homework if you want to confirm the exact year of King Wu's war. Especially regarding the reverse deduction of ancient celestial phenomena, it is necessary to rely on some clues in the ancient book "Chinese" and cooperate with the astronomical cycle of Jupiter to carry out reverse extrapolation.

So it's a complex project that combines archaeology, history, atomic physics.

Although the insiders have done each of the step-by-step steps here, in order to form a formal report, they still need to add a lot of details and understand it.

Two days passed quickly, and the first draft of the report was very satisfactory to the above, and foreign scholars were specially invited to cross-examine it on a small scale. Finally, it was handed over to the minister, and the instructions were given to hold a press conference on relevant results before the National Day.

The results presentation was finally scheduled for Tuesday, September 28.

The invitations were sent three or four days in advance, mainly to Western scholars of international prestige who had previously questioned the Shang and Zhou dynasties in China. Regardless of whether these guys come or not, as long as the press conference is successfully held, they will be able to shut up those guys.

As for Gu Wan, he was one of the keynote speakers who was scheduled to be at the results conference. Questions about the accuracy and principle of the AMS instrument will be answered by him at that time.

……

On September 27, the day before the results seminar, a group of archaeologists from the Western hostile forces came to the capital one after another, ready to receive a slap in the face.

Professor Galfort of Stratholme University, who once won the honor of "Best Played by Gu Toys and Stepped on the Top", was also invited.

However, this time, he seemed to have an ominous premonition when he saw the name of Gu Wan in the list of keynote speakers, and decided to say a few words less at that time.

At dinner that day, in the cafeteria of the hotel, Galfort met an old friend, Professor James Barov, director of the Institute of East Asian History at the University of Cambridge, in the cafeteria of the hotel.

This Professor Barov has retained the consistent style of all British and dog liberal arts scholars, and has spared no effort on the issue of hatred of China.

After spraying the Xia Dynasty for many years, he continued to spray some of the records of the Shang Dynasty for any flaws, which was simply like a mad dog taking money to do things for black people.

When he met Galford, Professor Barov greeted him lightly and talked about how he would be academically scolding the Orientals tomorrow.

"Hey, isn't this Galfort, I heard that this time the Chinese want to announce that their letter history can be pushed back hundreds of years? ”

Galfort shrugged: "I think it's better to give up." I guess casually, and I also know that the Chinese must be the world's best with their isotope mass spectrometry separation technology, so they want to use higher-precision C14 isotope determination to gag our mouths. My gut told me that it would be humiliating to refute it. ”

Professor Barov pondered for a few seconds, he was not stunned, and he would not fight uncertain battles. Then he said slowly: "I have also heard a little about what happened to you in Fusang Bodo last month. However, even if the Chinese achieve the world's first atomic separation technology, they will not be able to improve the accuracy to one year, right?

"Plus or minus 20 years, that is, the maximum error is 40 years. ”

Barov smiled confidently: "That's not enough, the error of 40 years is already big enough, and if the Chinese want to talk about the history of the letter, there must still be loopholes." ”

PS: Please don't tip. I will finish this book, about 500,000 words.

It's just that the plot is accelerated, and it's not unfinished.

But because I have to prepare a new book at the same time. It will be updated a little slower, four thousand words a day in the future.

Don't chase after it, it's no problem to see it in a month, and I'll read it at once with more than 100,000 words.

Compared with those who finished the book decisively within two days of being on the shelf, I think it is still very conscientious.

I want to talk about "The God of Science and Technology" with more like-minded people, pay attention to "excellent reading literature" on WeChat, talk about life, and find confidants~