"Even if the heroine is settled by Chen Ping'an, it would be good for him to let whoever be the heroine. Why does the ghost blow out the lamp heroine still audition, it is said that in addition to me, there are 6 other actresses who have been given the opportunity to audition for the lady who blows the lamp. Yang Xiaoran said.

Yang Digital has put in a lot of effort. only then did the ghost blowing lantern crew send Yang Xiaoran an audition invitation.

"Sister Xiao Ran, Chen Ping'an is an outsider. He doesn't care much about the casting of the heroine. However, when the heroine auditions, he will be present, and he can decide who the heroine chooses in one word. Therefore, I just asked you to talk to him and leave an image in his heart. It helps a lot when it comes to auditions. Because, he is an outsider and is not familiar with the actresses who audition for each audition, so the impression is very important. The assistant said.

"Why didn't you tell me in one breath just now. Yang Xiaoran said regretfully.

Just now, the three of them only stayed at the door for more than 1 minute, and only Dapeng found a chance to talk to Chen Ping'an when he saw the stitches. …… , Sister Xiao Ran, hasn't Sister Digital been looking for a relationship to push you? successfully got you the opportunity to audition for the heroine of the ghost blowing the lantern. Let you pass the audition and she has not been able to find a relationship. Now is not a good opportunity, the mountains and rivers are full of doubts, and the willows and flowers are bright and another village. The assistant said, "We're going to call Sister Digital." ”

"You're still smart. Yang Xiaoran said, then took out his mobile phone and made a call. "Sister Digital, that's it. I was recording a program at Yunji University and saw Chen Ping'an. ”

"Did you talk to him? Yang Digital said.

"There is no chance. Yang Xiaoran said.

"Okay, I got it. I'll come right over. Yang Digital said.

……

The three walked into a room.

In the room is a C14 dating instrument.

A teacher is teaching students how to use the instrument to date an artifact.

Saw three people come in.

The teacher greeted Wang Heping, "Headmaster." ”

"Teacher Zheng, I'm interrupting your lecture. Wang Heping said, after speaking, he introduced Lu Yunchang to Mr. Zheng and said, "This is Lu Yunchang from the Palace Museum." ”

"Deputy Director Lu, I have admired my name for a long time. Teacher Wang said.

This is the Department of Cultural Relics and Museology, and for them, Lu Yunchang is indeed a long-admired and famous name.

"Hello, Mr. Zheng. Hello students. Lu Yunchang said.

"Now Deputy Director Lu has an important matter, to use this instrument to determine the age of a cultural relic. Wang Heping said.

"That's right, Deputy Curator Lu taught the students how to use this instrument to determine the age of a cultural relic, and I can also steal a little leisure. Teacher Zheng said.

"I taught in the Department of Archaeology at Yenching University. Teaching is my old job. Okay, I'm going to do this lesson. Lu Yunchang said.

Lu Yunchang spread out the bamboo slips and said to Chen Ping'an, "Can I cut a test sample?"

Chen Ping'an said, "Yes." ”

Lu Yunchang cut a small piece of bamboo from the blank space of the bamboo slip and said, "Students, when using C14 to determine the age of a cultural relic, we must first know this principle.

Cosmic rays can produce radioactive carbon-14 in the atmosphere, and can combine with oxygen to form carbon dioxide and enter all living tissues, first absorbed by plants, this process, C + O2 = CO2, CO2 + H2O (light, chloroplast) = CH2O + O2, these are the biological knowledge of junior high school. Photosynthesis of plants. …… , followed by animal inclusion.

As long as plants or animals survive, they will continue to absorb carbon-14 and maintain a certain level in the body, and when the organism dies, it will stop breathing carbon-14, and the carbon-14 in its tissues will begin to decay and gradually disappear with a half-life of 5730 years. ”

"Deputy Director Lu. So, whether it is an artifact that is more than 5730 years old cannot be determined with C-14. A classmate asked.

"Yes. However, most of the artifacts are no more than 5,000 years old, so 5,730 is more than enough. Lu Yunchang said.

"To date an object that exists very early, for example, a rock, is there a way. A classmate asked.

"This classmate must have gone to the wrong classroom, you should be in the geology class. Lu Yunchang made a little joke, "This question does not belong to the knowledge of archaeology, but to the knowledge of geology."

However, I can answer this question, in rocks, rocks and minerals contain trace amounts of radioactive isotopes present in chemical elements, and the age of a rock can be calculated by the law of decay. ”

"What I am holding in my hand is a piece of bamboo cut from a bamboo slip, and the knowledge I just talked about is that when the bamboo is cut down, the bamboo dies, that is, the bamboo stops photosynthesizing and stops breathing C-14, and the C-14 in the bamboo begins to decay with a half-life of 5730 years. Now that I am going to measure the amount of radioactive C-14 left in this bamboo piece, I can deduce the age of the bamboo slip. Lu Yunchang said.

…….

Lu Yunchang skillfully operated the instrument.

Soon.

The bamboo slips have been dated.

The bamboo slips have a history of 3,050 years.

C-14 is used to date an artifact. The more recent the age, the greater the deviation.

The older the age, the smaller the deviation.

According to historical records, the establishment of the Qi State was in 1046 BC.

It's been 3059 years ago.

These two eras are compatible.

Lu Yunchang is almost certain that this bamboo slip was written by a historian during the period of the Taigong of Qi. And not later people to sort out the revision.

The content on the bamboo slips was written by the historians of the Qi Kingdom, and it was sorted out and revised by later people, which is very different.

Refer to the Spring and Autumn Period of the Lu Kingdom. The Spring and Autumn Period of the State of Lu was compiled by the historians of the State of Lu. Later, Confucius sorted out and revised it according to the "Spring and Autumn Period" compiled by the historians of the Lu State. The pen is the pen, and the sharpening is sharpening. When Confucius revised the Spring and Autumn Period, he tried his best to infiltrate his own political ideas, and deleted and distorted the content that was not related to his own ideas, and lost part of the historical facts.

In the first year of the reign of Qi Taigong, it was written by the historian of the Qi State. It's real history. It is the history of letters.

If it is a later person to sort out and revise, how to fix it, this needs to be placed.

As soon as the results of C14 measurement of bamboo slips came out. Lu Yunchang made a phone call and only said two sentences, "The first sentence, the bamboo slips are true." In the second sentence, the bamboo slips have a history of 3,050 years, which corresponds to the age of the Taigong period of Qi.

Immediately, in a room of the Palace Museum, dozens of experts were waiting for news. Immediately the cheers boiled.

Next.

Lu Yunchang said to Chen Ping'an, "The picture you posted on Weibo \1 is the 7th year of Li Gong, and the one used to do the C-14 determination is the first year of Qi Taigong, that is to say, you have more Qi Chunqiu Jian." ”

Chen Ping'an said, "Yes." ”

Lu Yunchang's breath stagnated and said, "How much more." ”

Chen Ping'an said, "Qi Chunqiu is all simple. A total of 242 rolls of bamboo slips. ”

———

Three rivers up.

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