you 're right.

Different from the front of the slate, there is no written record on the back of it, but two symmetrical paintings are engraved.

Mentioned earlier.

The length and width of this slab are only about one foot. At this time, there are many people in the laboratory. It is relatively difficult for everyone to observe the slab.

In addition, considering that the opening of the slate requires a lot of spiritual power, it may disappear again sometime.

Therefore, Lin Li quickly called several researchers to rub the pattern of the slate and put it on the main screen of the laboratory.

Generally speaking.

The recorded images of stone carvings are often not very accurate, and there are often a large number of rough and hard places, which is difficult to describe all kinds of details in detail.

Like the stone carvings of some ancient civilizations, it is difficult to distinguish the facial contour of the characters.

But the two paintings on this slate are different.

Although it is a picture carved from stone, people can see its contents at a glance.

The content of the first painting is actually very simple:

There are three suns hanging in the sky. In the middle of the picture, a huge and irregular stone is breaking into the sky and rushing to the ground.

Then it's gone - it's not a GIF chart after all.

The content of the second painting is a little complicated.

That is a real picture of the war:

On the left side of the picture, a huge black hole floats in the void, from which demons and beasts come to the earth and kill the human race wantonly.

On both sides of the cave stood a coffin and a strange eye.

On the right side of the picture, against the monster side, are countless practitioners, many of whom are physically defending the sky.

The two sides fought together in a tragic situation.

Mountains and rivers are red, bleeding and floating.

It is worth noting that there are only two suns in the sky of the second painting!

Perhaps the information revealed by these two paintings is too complicated.

For a moment, the whole laboratory fell into complete silence.

A few seconds later, Lin Li regained consciousness, took a deep breath and resolutely ordered Zhang Guanghua:

"Xiao Zhang, you immediately make multiple backups of this image and transmit it back to the base camp to the core layer at the same time. Colonel Lin, it seems that you have to go."

Zhang Guanghua and Lin Ziming nodded at the same time and spoke in unison:

"No problem, guarantee to complete the task!"

After explaining this, Lin Li said to another researcher from Sinochem:

"Kobayashi, you immediately organize people to try whether the carbon 14 identification is useful. If you can't, then go to the isotope radiation identification. If you can't, use other means. In short, you have to confirm the approximate age of the slate."

Researcher Lin nodded:

"Yes, I'll do it right away."

C14 identification method, also known as C14, is a mature age detection method.

The half-life of carbon in the greater Mo kingdom is similar to that in the native world, so this method can be put into practice only by simple proofreading - and this process was solved as early as the era of camp or tent.

Previously, the articles left by Wei Siming were identified by carbon 14 detection method.

However, although the detection of C 14 is accurate, it has a huge limitation:

That is, it is basically impossible to date objects over 70000 years - in fact, after reaching the figure of 40000 years, the error of carbon 14 will exceed four digits.

For articles over 70000 years old, radioisotope identification method is a relatively feasible technical means at present.

But the error of this method is still very large.

In addition to the above methods, the oldest ones are fission track method, water method, micro trace analysis and so on.

But at that point, it's almost impossible to be accurate to six digit years.

If it is ten million other fossils, the error may even appear in seven or even eight digits.

One might wonder:

Since the detection method is so difficult, how can dinosaur fossils be dated?

In fact, most of the local dinosaur fossils with tens of millions of years are not detected by technical means.

In the process of field excavation and research of modern dinosaurology, the geological age of almost all dinosaur fossils has been clarified before they are excavated.

Like many fossils whose geological age cannot be determined, the current specific age is questionable, such as the pterosaur fossils in Sichuan Province.

However, the purpose of the rabbits is only to confirm the approximate time of the slate from now on, but there are no detailed requirements for the accuracy, mainly to determine whether the slate is related to today's practitioner civilization.

At present, the known practitioner civilization has been inherited for about 30000 years, and the earliest starting point may be pushed back to about 40000 years.

If the age of the slate is within 100000 years, it is theoretically possible that the slate belongs to the same time period as the current practitioner civilization.

After all, rabbits don't know much about the Da Mo world. In extreme cases, it can't be ruled out that there was a small spiritual civilization earlier.

But if the age of slate is 200000 years or even millions of years ago, it must have nothing to do with today's spiritual civilization - at least in terms of time.

After Zhang Guanghua and others left, Lin Li told the crowd:

"Ladies and gentlemen, let's first analyze the information that this stone carving can provide. The pictures are transmitted to your mobile phones in real time. Who has an idea and can speak freely?"

When they heard the speech, they all looked down at the picture information.

After a while, Dai Chaohong slowly raised his hand:

"Team Lin, I have some ideas."

Dai Chaohong once analyzed the situation of the city wall when the rabbits had just arrived at the Da Mo boundary, so as to judge the key information of "enemy attack in chixian city", which made a great contribution to the rabbits' earlier decision-making.

But later, he was addicted to analyzing the humanistic environment of Da Mo world, so he didn't show up for a long time, and the exposure was far less than that of Ma Ning.

Now, with the version update... Cough, with the appearance of slate, Dai Chaohong once again shows his powerful thinking ability:

"You can clearly see that the first painting looks like a meteorite falling on a planet.

You may not know much. From the perspective of civilization, the records of "natural change" of this nature either Herald destruction and disaster, or some kind of "coming". This is true for more than 95% of the stone carvings found in the mainland.

For example, a similar picture was recorded in a Mayan relic in Chiapas, southern Mexico. In that Mayan legend, the creator landed on a meteorite and brought life.

In the ancient civilization of Abyssinia in Africa, that is, Ethiopia, the stone carving code named i.e. 142 also landed by meteorite, which later proved to be an image representation of a serious plague.

According to the content recorded in the second stone carving... I personally prefer the second expression. Meteorites have brought disaster. "

Then he paused, saw that most people agreed, and continued:

"As for the second painting... Let's talk about its key points first.

For example, why is there only two suns in the sky?

When recording this scene, even if there are dark clouds obscuring the line of sight, in theory, at least a corner of the sun is exposed. This is an expression of painting art, and it is impossible to directly ignore the sun.

Secondly, there are two things on the edge of the black hole. What is the relationship between the coffin and the ice coffin we found?

What's the origin of that eye?

In the absence of evidence, I personally put forward an irresponsible guess

Isn't there a rumor in our country that the "nine stars linked with beads" and "eight stars linked with beads" will have the end of the world?

Local rumors cannot be true, but is it possible that this kind of thing can really happen in a world with extraordinary power?

I remember our astronomers said that there is a special "membrane" outside the world of Mo, which isolates a large number of cosmic high-energy rays.

So I think so:

At a certain time, at a certain moment, one of the three suns was obscured by other stars, resulting in a loophole in the "membrane" that can isolate high-energy rays in the outer layer of the great Mo world.

Meteor fall is a precursor.

When this happens, the demon world or some other world takes this opportunity to launch a large-scale attack - maybe the coffin and big eyes are the people or things that open the channel, and then the demon beast comes, and the earth is covered with charcoal and bleeding. "

Hearing Dai Chaohong's words, the people fell into silence.

It has to be said that the possibility mentioned by Dai Chaohong exists, and the whole story line sounds quite smooth.

Then Lin Li turned his head and looked at Zhang Lin, the former director of Zijinshan Observatory, who, like Dai Chaohong, had contributed important information several times, but then he was relieved to engage in scientific research:

"Director Zhang, is it possible that Professor Dai said?"

Zhang Lin thought for a moment and nodded:

"At present, the spectra of the three suns in the Da Mo world have been determined. They are all 100% stars, and the largest one is the 'No. 1 sun' with an orientation of 7.7 ° East by south."

Its spectrum does not have the free line of helium, but the hydrogen line is very obvious. It belongs to the category of b0v, that is, blue supergiant. It is also such a star in the local Orion.

At present, the distance between them and the Da Mo world is still being measured, but in theory, there are four situations in line with Professor Dai's judgment. "

Zhang Lin's words made the scene fall into silence again. After a while, Wang Qiang's voice suddenly sounded:

"Hey, why is this miserable man like Xiao Wu?"