Chapter 221: Black Technology in the Detection Age

Originally, this kind of small thing is not enough for Chen Lao to get out of the horse. The porcelain of the Minmin kiln, Chen Lao has not seen it. He is considered a veteran of the museum, and it is impossible for this kind of gadget to be cleaned up only after his old man has to look at it one by one.

It's just that Ye Xin didn't dare to underestimate Hu Yang, this guy has been praised by the curator, so naturally it is impossible to be weak, plus the contact just now, she found that this person is indeed powerful.

The object that poplar looks at may not be as simple as it seems.

He said that there was a bowl in the middle, although it sounded very mysterious, but it was not impossible, what if? She remembered a kind of porcelain, called a firewood kiln, so she didn't dare to be careless, and hurriedly invited the characters of the town hall out.

"You're Xiao Hu! Xiao Fang told me about you, and you did a good job. As soon as Chen Lao came up, he began to praise.

It's not that he has no brains, the reason why he has a good impression of Populus euphratica is not because Populus euphratica has picked up any national treasure-level cultural relics, nor because his ability is outstanding, but that he heard the curator say that this young man is committed to spreading traditional culture. This kind of sense of responsibility is too rare for young people nowadays.

This old man Chen is over seventy years old, and it stands to reason that he has already reached the age of retirement. But he is an idle man, even if the state does not pay him a salary, he has to continue to work.

This phenomenon is common among the older generation in China.

They are accustomed to toil, and once they are idle, they will feel uncomfortable, always thinking about finding things to do. Work has become a habit for them.

Looking at the old man's outstretched hand, Hu Yang hurriedly clenched: "Old Chen has been raised, boy, I still have a lot to learn from you old-timers." ”

The fact that President Fang called Xiao Fang shows that this old man is very senior.

Chen Lao smiled and pointed to the live broadcast equipment in Andy's hand: "This is your webcast?

Hu Yang nodded: "Because of the publicity of the platform, I know that I am visiting the museum today, so there are many friends who watch it, and now there are more than 600,000 people." ”

After answering, he said to the audience in the live broadcast room: "Everyone say hello to Mr. Chen." ”

For a while, the public screen was full of greetings, and no one could hate this kind of old worker. China's prosperity is inseparable from the silent efforts of the older generation.

It is because of their dedication that we can enjoy all this in peace now.

At the same time, all kinds of gifts floated up, all of them were gifts of more than 100 yuan. Hu Yang knew that there would be more people watching the live broadcast room today, and there would naturally be more gifts, so he set a limit, and the special effects of gifts below 100 yuan would not appear on the screen.

In this way, the picture is cleaner, everyone can see more clearly, and the viewing experience is better.

Especially when it comes to some more important things, Hu Yang simply turned off all the gift effects, for fear of affecting everyone's viewing experience.

In addition, at some specific times, he also explained in advance that everyone should not give gifts first, so that the live broadcast screen is full of gift special effects, which will affect others to watch.

This kind of behavior not only did not disgust everyone, but was praised.

Everyone knows that Populus euphratica does not lack so much gift income, and the purpose of the live broadcast is just to let everyone see some traditional culture.

This is a sincere live broadcast, which does not care about interests at all, and is very pure.

It can be said that such an anchor, I am afraid that the entire platform will not find a second one.

When Chen Lao heard this, he was shocked, five or six hundred thousand people? That's a lot. With such an audience, it is true that a lot of things can be done to spread traditional culture.

He watched the live broadcast room for a while, and when he saw those greeting speeches, he also happily raised a palm and shook it: "Hello everyone, hello everyone! If you want to learn more about traditional culture in the future, remember to watch Xiaohu's live broadcast." ”

I don't have any self-introduction, maybe in the eyes of the old man, I don't have so much credit for everyone to know and remember, and I am a person who doesn't care about fame and fortune.

Then, without further nonsense, I turned on the lights and observed the bowls stacked on top of each other, especially the slits. Illuminated by strong light, I also observed it with a magnifying glass for a while.

"There is indeed an isolation layer, but it is difficult to say whether it is porcelain or not. If it's porcelain, then it's easy to do, I have a way to separate, let's try it!"

Because he also knew that if it was really porcelain, such a thin carcass should be the legendary firewood kiln.

Then, be even more careful. He was looking forward to it, if it was really firewood kiln porcelain, it would be terrible, and he believed that the entire Chinese cultural relics community would be hit by a ten-magnitude earthquake.

You must know that when it was reported in Japan that they had a piece of firewood kiln porcelain, China immediately sent a team of experts to identify it, which shows how much attention is paid to firewood kilns.

Chen Lao was not in a hurry, and first prepared a solution step by step.

While preparing, we do a commentary. In fact, this solution, the museum itself has stock, but when he saw the live broadcast of Populus euphratica, he still did more work, which can be regarded as support for the live broadcast of Populus euphratica, so that everyone can understand some more in-depth inside information.

"This porcelain was salvaged from the bottom of the sea, and it was glued together because of a substance in the seawater. Therefore, in order to separate porcelain well, it is necessary to specially prepare a solution that can dissolve that substance, and not harm the porcelain itself.

In each case, we must carefully analyze, analyze what kind of substance it is, and then make the corresponding solution according to the corresponding substance.

This involves the field of chemistry, so we also cooperate with Yangcheng University, and they provide us with technical assistance in this regard. Chen Lao explained.

His explanation is more classroom-oriented, and everyone is like listening to the teacher's lecture, and it feels a little interesting for a while.

In fact, many institutions have partnerships with universities. After all, some universities have very professional equipment and professional knowledge.

Just like the situation mentioned by Chen Lao, when encountering a new substance, the researchers at the university can analyze it and then formulate relevant solutions to solve it.

After preparing the solution, put the porcelain bowl in it to soak, which takes a certain amount of time, and there is no hurry.

So, Mr. Chen took everyone to see other things and increase the content of the live broadcast. For a while, the anchor seemed to have changed the protagonist, Hu Yang and Ye Xin didn't talk much, and they were like students next to them, listening and learning things with everyone.

"I believe you will be interested in showing you a piece of technology.

Many times, everyone must wonder how to determine the age of an object, especially porcelain and the like. In addition to our habitual identification method, that is, the traditional 'visual examination', there is also the use of some scientific instruments.

Among them, in porcelain, there is thermoluminescence.

We cannot completely ignore the means of science, and sometimes we must use science to solve some problems, and we cannot completely reject the means of science.

In fact, there is no conflict between traditional culture and science. Our traditional culture used to be advanced science. For example, the firing of porcelain is actually a chemical reaction. ”

As Chen spoke, he took everyone to a room next to him.

Where, Populus euphratica saw the black technology of identifying the age - thermoluminescence.

It is said that matter has the property of luminescence when heated, which is the result of the release of stored energy as electrons move between crystal lattices.

At a certain time interval, the total dose of nuclear radiation supplied to the crystal by the radioactive elements U, Th and K per year is a quantitative, and the number of photons released, i.e., the thermoluminescence intensity, is proportional to the time of accumulation of stored electrons.

Therefore, the age of the sample can be calculated by determining the thermoluminescence intensity of the crystal and the total dose of radiation received per year.

This technique, which is mainly applied to substances that have been cauterized or heated, is widely used in archaeological research.

Geology is also effective for the determination of various natural rocks and mineral mixtures formed by weathering, decomposition and redeposition, especially quartz and feldspar. Satisfactory results have also been obtained in the study of the age of loess strata.

Ye Xin told everyone that this technology can measure the range from hundreds of years to a million years.

"However, we can't rely entirely on this so-called science, and sometimes, it can be deceiving, too easily distracted, and the results will be different.

Just like porcelain, thermoluminescence dating can measure the age of ancient ceramics, but the different doses of a chemical element required can disturb the age of ancient ceramics, that is, they can make their age larger.

This limitation of thermoluminescence is also often exploited by counterfeiters. Chen Lao said to everyone.

Hu Yang couldn't help but humbly ask: "How long does it take to test the age of this method?"

"Not necessarily, depending on the specific situation, those objects that are thousands or hundreds of years old will bear fruit in a day or two. For those who have a longer period of time, the statistical data will naturally be very large, so the time will be slightly longer. Ye Xin introduced.

In this way, the limitations are still quite large, and it is not suitable for treasure appreciation, and can only be used by some appraisal institutions.

When everyone heard this, they were also a little disappointed, and they thought it was so powerful. There are actually a lot of loopholes that can be drilled, and according to what Chen Lao said, there are still people who take advantage of those limitations to fake.

"Although it has limitations, it is very helpful in our work. Not everyone can age a cultural relic with their eyes. As a young man in the new era, Ye Xin is more respectful of scientific instruments and pays more attention to scientific methods.

Chen Lao was impartial and said with a smile: "A single traditional method and a single scientific method are actually not good. The best way to do this is to combine the two to minimize the error. ”

After visiting the black technology, everyone returned to the original place again to check the degree of dissolution.

Everyone found out that it was quite fast. After a while, the porcelain bowl that was originally glued together had fallen off.

With an expectant look, Chen Lao took away the top porcelain bowl and put it aside. At this time, everyone saw that as expected by Brother Hu, there was really a porcelain bowl inside, which was not as thin as it could be.

Chen Lao and Ye Xin couldn't help but be excited, and seemed to have guessed what kind of treasure it was.

"Quick, go and ask the curator to come over. Chen Lao said to Ye Xin.

There was an uproar in the live broadcast room, this is the first time that Brother Hu has found a lost national treasure?