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Text Chapter 787 Da Vinci imitation painting?  (continued)

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    Hearing this, Wu Ke felt a little strange, so he asked: "I saw a magazine last time, which said that oil paintings were identified with carbon 14. The results have a high reference value. Boss, why don't you do it?"  How about an identification? "Carbon-14 is a radioactive isotope of carbon that was first discovered in 1940.  It is produced by cosmic rays striking nitrogen atoms in the air. Its half-life is about 5730 years. The decay method is beta decay, and carbon-14 atoms are converted into nitrogen atoms.  Since the ratio of carbon isotopes in nature has always been stable, and carbon is one of the elements of organic matter with a half-life of 5,730 years, people can estimate the approximate age of an ancient object by measuring its carbon-14 content.  This method is called carbon dating.  Carbon 141 identification is widely used in current archaeology and identification.  Nan Nan smiled slightly and said: "It's not that I don't want to do it, but the results given by Carbon 14 are not very authoritative in any case. This painting of mine was actually picked up in the trash can.  In this case, even if I use carbon 14 for identification, the results given are completely without reference value. " Carbon 14 identification has limitations, because the large amount of carbon elements produced by artificial nuclear explosions has a great impact on the atmosphere.  Moreover, since the Industrial Revolution in the 18th century, the ordinary carbon element c in the atmosphere has greatly increased, which has a great impact on the ratio of carbon elements. The internationally recognized starting point for bp in carbon 14 dating is 1950.  Generally speaking, the sample for identification must be free of contamination. If early or late carbon is accidentally mixed in, the measured results will definitely be very different from what we want.  Therefore, it is untrustworthy to draw conclusions without strictly explaining the sampling process. In archaeological excavations, the results of carbon 14 determination are still a reference, not a decisive status.  ??If this is the case with archeology, let¡¯s look at calligraphy and painting.  Can it meet the conditions for carbon 14 detection?  First of all, what era was the paper used for calligraphy and painting?  How many years has the finished product been aged?  In what way is it displayed?  Is there air convection under the aging conditions?  Do calligraphers and painters introduce pollution during their use?  What biological materials are used in pigment ink, and what are the above issues?  How to save the work after creation?  How does framing affect the work?  Does the framing process introduce materials from different eras?  Are liquids, such as water, etc. used during the mounting process?  How to collect and display works?  What is the air convection situation like during collection and exhibition?  There are many complex factors.  This also makes.  Even if carbon 14 can be used to identify calligraphy and painting works, it can generally only serve as a dispensable reference value.  In fact, any detection should be based on substances. To detect the age of a sample, you must find a substance that is completely linearly related to the changes in age. In the field of calligraphy and painting, such markers are difficult to find.  All substances in calligraphy and painting works all started from different starting points and experienced different dissemination and pollution to reach the present. It is difficult to bypass the scientific explanation of the sampling process for any determination of substance content, not just carbon 14 determination.  in this way.  Since the portrait of the girl in front of me was found in the trash can.  The oil paint on it will be more or less contaminated. In this case, carbon 14 will definitely not be able to do it.  After listening to Nan Nancai¡¯s explanation, Chu Chen and Wu Ke finally understood why Nan Nancai didn¡¯t do the appraisal, but they were even more surprised.  This painting was picked up from a trash can. Isn't this a bit ridiculous?  Seeing the surprised looks on their faces, Nan Nan was very proud of his good luck.  He smiled and said: "It's a coincidence. Last year, when a friend of mine was discharged from the hospital, I went to visit him at his house. When I left, I wanted to be close. I walked through an alley to the parking lot.  , I saw this painting in a trash can in the alley. "At the time, I thought it was just a replica. When I walked over and took a look, I discovered that it was actually a real oil painting, and it had nothing but the frame.  Except for some dirt, the canvas was not affected much, so I took it back.¡± After listening to Nan Nancai¡¯s account, Chu Chen and Wu Ke finally understood why the frame looked so worn.  But even so, the two of them still found it quite incredible.  Who is so rich that he can throw something worth hundreds of thousands of euros in the trash?  Chu Chen was a little suspicious. This might be Nan Nan's deliberate rhetoric, but that was not the case.  "Boss Nan, why don't you change the frame of the picture?" Wu Ke said with a frown. She was a little bit obsessed with germs. When she heard that the painting came out of the trash can, she suddenly felt a little bit in her heart.  Niwai, if it were her, she would definitely not want such a thing.  Hearing this, Nan Nan understood what Wu Ke was thinking. He smiled and said, "Although the frame is a little older, it is still the original frame from the 19th century."??And I've asked someone to clean it completely, so there will definitely be no problem.  " Hearing what he said, Wu Ke was a little disapproving. For people with mysophobia, this kind of knot is definitely not easy to get rid of. Chu Chen didn't care about this. He was most concerned about one issue now. If this painting is  If someone threw it into the trash bin by mistake, what about the ownership? So, he asked: ¡°Boss Nan, can you guarantee that the original owner didn¡¯t throw it away accidentally?  Nan Nan smiled and said, "Don't worry about this. I also have connections in the local police station. If it was lost by mistake, the original owner couldn't possibly say that he never called the police, right?"  It's been almost a year now and no one has reported the crime.  Moreover, if you agree to the exchange, we can sign a contract. If there are problems in the future, all your losses will be borne by me.  ¡± Actually, Nan Nan prefers oil paintings, and he also appreciates this painting. Originally, he didn¡¯t want to take out this painting, but he liked Chu Chen¡¯s Arhat bracelet so much, and Chu Chen¡¯s eyesight  It was extremely high, and he felt that if he didn¡¯t come up with a heavyweight work, it would be impossible to impress Chu Chen. As Chu Chen said just now, since you can¡¯t have your cake and eat it too, he had to choose.  Only what he wants in his heart. After listening to Nan Nancai's words, Chu Chen pondered for a while. In fact, if he hadn't made an unexpected discovery after using the power while Nan Nancai was speaking.  , he really has no interest in such imitations, but now he unexpectedly discovered that even if there may be disputes in the future, he will take down this painting. Of course, since Nan Nan said this, there is a possibility of disputes.  It¡¯s very small, and if there is a dispute, the most he can do is return the painting in front of him to others. ¡°I didn¡¯t expect that I still couldn¡¯t resist the temptation in my heart!  " Chu Chen laughed at himself, and then said with a smile: "Since you are so sincere, Boss Nan, what reason do I have to object to this matter?  " Only then did Nan Nan hear the answer he wanted. He was so happy that he smiled like a flower. However, Chu Chen immediately said: "Boss Nan, I don't know much about the market value of oil paintings.  , I am not very good at judging the value of your imitation work!  " Chu Chen's words are indeed true. He was not very interested in oil paintings in the first place. He first learned about the prices of oil paintings from the "School of Athens", but in this way, he only had a brief understanding. As for the price of oil paintings,  It's a market for fake paintings by famous artists, and he doesn't know much about it. But Chu Chen has the price given by the superpower as a reference. If Nan Nancai wants to fool Chu Chen, it would be a big mistake.  Hearing what Chu Chen said, not only did he not have the idea of ??deceiving Chu Chen, but he also secretly scolded Chu Chen as "little fox". This was because he felt that Chu Chen might be using this matter to test him. If  If you are not satisfied with the price offered, the business will definitely be ruined. He smiled and said: "Mr. Chu, you can rest assured. I have been doing business for so many years and I still know the words "honesty." Besides, if you are not satisfied with the price.  , we can also discuss it!  Well, the reference price the appraiser gave me previously was 450,000 euros. Since I got the thing for free, I will give you a little profit, which is 400,000 euros. What do you think?  " What Chu Chen said just now is actually a counter-offer technique. Between the virtual and the real, Nan Nan didn't dare to ask too much. Of course, things did meet certain expectations, but he didn't open the door until he heard Nan Nan  At the price, he curled his lips secretly and cursed "profiteer" secretly. To say that if this painting was genuine, even if Nan Nan added two zeros, it would be less, but it would be less than the genuine one.  The imitation product is really overpriced. The price given by the superpower is actually only 300,000 euros. If it is exchanged for the price given by the superpower, Nan Nan will have to pay Chu Chen.  , the price given by the supernatural power is actually relatively low. When trading in the market, some people's subjective factors must be added, but even if this price increase is added, Chu Chen feels that the price of the painting in front of him is about the same as him.  The three items were of equal value, not to mention that Nan Nan was still the one asking for help. So, the two of them had a non-smoking exchange of words. In the end, Nan Nan was defeated, except for the one in front of him.  In addition to the oil painting, he also gave Chu Chen some discounts, which were used on the two pieces of porcelain he just brought on the table and the nine-eyed dzi bead that Chu Chen had taken a liking to. After the transaction was completed, Nan Nan.  He also breathed a sigh of relief. He was quite satisfied with the result. Not only did he get something he was satisfied with, but he also made a lot of money, and all he paid for it was just a copy of Leonardo da Vinci.  . But Nan Nancai didn¡¯t know that it was his seemingly profitable decision that made him lose.He had an opportunity to make a fortune. If he knew the truth, he would probably regret it even in his intestines.
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