Due to Zhao Qian's addition, some equipment, such as the existence of rings, Li Yu and they tacitly did not show it, and after arriving at the residence of primitive people, the equipment needed for research was transported by Xiao Wei from the space.

The existence of robots, Li Yu is not prepared to keep it secret, anyway, the current level of robots in the country, with the contribution that Li Yu made unintentionally, the level is not low, and there is no point in keeping it secret.

Therefore, the installation and adjustment of the equipment on the site were completed by the robot, and Li Yu and they took advantage of this time period to visit the place where primitive people lived.

"According to the scale of primitive people, their place of residence should not be called a village, at least a primitive town or city, so as to meet the level of their development." Fang Qianmo said to Li Yu.

This primitive town covers an area of about five square kilometers, which is indeed not small. It is located in the valley between the mountains, the terrain is relatively flat, structurally speaking, it is roughly divided into two parts, there is a fault about ten meters high in the middle, above the fault, is the place where the upper class people live, almost all of them are composed of exquisite stone houses, and all kinds of facilities are relatively complete.

Below the fault, the planning of the houses is more messy, and it is not as tidy as the superstructure. But they seem to have an extra breath of life, unlike the superstructure, which is full of religious connotations.

There is also a third part that is not obvious, which belongs to the periphery, and Li Yu feels that it is absolutely appropriate to describe it as a shantytown. These three main parts are all separated by walls more than five meters high.

In addition, there are scattered buildings in the distance, and there is no planning for these, a bunch of them in the east and a gang in the west.

"The reason for the existence of the city is for the special elements." Lin Wanbai looked at the mountains of rubble piled up in the distance and saw the essence of the city's existence.

The snow melts in the high mountains and converges into a river with abundant water, which meets the city where the primitive people are located, forming a small impact plain, and then flowing forward, forming a waterfall of no small scale.

The snow that flows down from the mountains has formed a zone of subsidence of special elements on this small plain for thousands of years. Primitive man is like a gold pander, panning for ores formed by special elements from the river.

Lin Wanbai said that this city mainly relies on special elements to exist, and he is not wrong at all.

"In other words, in the mountainous area, an impact plain can be naturally formed, without forming a dammed lake, I have to say that the environment of this place is a bit unique." Li Yu also thinks that the terrain here is good.

"Li Yu, I found a place where primitive people made weapons, do you want to come and take a look" Xiao Wei stood at the mouth of a cave on the hillside and beckoned to Li Yu.

Xiao Wei's existence is also something that makes Zhao Qian dumbfounded. She didn't expect that the deep-sea organization would have such a powerful artificial intelligence, and in her opinion, Xiao Wei could be said to be a life.

Zhao Qian couldn't have imagined that she had guessed the facts to some extent. This is not to blame Zhao Qian, it is mainly human cognition of intelligent life, there are many misunderstandings, which are related to the overall level of human civilization.

The weapons of primitive people, of course, are the focus of Li Yu's attention, Xiao Wei found the place where primitive people made weapons, and they didn't hesitate at all, and came to the place where Xiao Wei found it.

It can be seen that the primitive people attached great importance to this place, and the perimeter of the weapon manufacturing site was a ring of tall walls, and only in the place facing the place of residence did there be an entrance and exit of people and goods.

If primitive people are still around, there should also be four checkpoints to check everyone who enters in detail.

This place, from a distance, looks like a cave, and when you look closer, you will find that it is completely a visual error formed by light.

The place where primitive people made weapons was not actually a cave, but a huge courtyard. It is surrounded by a wall ten meters thick.

"The productivity of these primitive people is actually not low at all, right? This kind of project is no smaller than the pyramids on the earth! ”

Fang Qianmo couldn't understand what these primitive people thought.

Li Yu came to this place and temporarily put aside his speculation about the behavior of primitive people, and what he was interested in now was how primitive people made weapons.

But at first sight, Li Yu was a little disappointed.

"What, that's too rough, isn't it?" Lin Wanbai was also very disappointed.

The weapon of primitive people is very powerful, so the process of making it should be full of high-tech style, right? Even if primitive people don't have such a level, but the civilization that leaves behind the weapon-making technology, they should have such a level!

But after coming to the weapon manufacturing point, Li Yu and the others found that the weapon manufacturing process of primitive people was really primitive.

After the primitive man screened the special element ore from the river, the raw ore was sent here for the next step of processing.

The way of processing is very rough, primitive people put the raw ore into a huge stone mortar, and use artificial powdering.

Judging from the situation left at the scene, the whole process should be made by ten primitive people, with a simple lever, lifting a stone pillar weighing about one ton, like pounding medicine, pounding the raw ore of special elements into pure powder.

It is pounded, not milled, because the hardness of special element ores is still relatively high, and if you grind, you can't easily crush them into powder.

When the pure powder is fine enough, these pure powders are collected, put into a huge pool, washed with running water, and sink to the bottom of the water, not blended into the water, and are not washed away, which is the crystallization of special elements with relatively high purity.

These special elements crystallize, after being screened again and dried, are poured into molds and placed in a kiln like a brick kiln for sintering.

Don't say it, after Xiao Wei's calculations, as long as after a few days of sintering, these modules are the final products, energy blocks.

"Is the primitive man burning porcelain?" This is the question of everyone in the laboratory.

The energy block that comes out of the kiln is like transparent glass, and the reason, of course, is that there is no energy in the energy block.

So, the next step is to recharge the energy block.

This step is the most high-tech place in the entire weapon manufacturing, and the place where it is charged is a simple fission reactor.

The fission reaction requires a concentration of heavy elements to reach a certain level before it can be carried out. Before entering the interstellar age, there were only a handful of countries on Earth that had mastered the technology of heavy element purification.

Of course, these primitive people did not master the heavy element purification technology like the earth, and they did not even master electricity.

So, how did these primitive humans carry out heavy element fission reactions? Of course, it's about to be applied to special elements.

The special element has good energy-absorbing properties, therefore, it is a perfect additive for radiation protection materials.

In this way, there is no problem with the collection of heavy elements. What about the extraction of heavy elements? It is even simpler, you only need to crush the ore of the heavy element like the raw ore of the special element, and then mix it with the powder after refining the special element, let it stand for a few days, and then wash it with water.

After this process, the heavy elements are perfectly precipitated by the special elements and adsorbed on the powder surface of the special elements to form a reactive core powder.

Hehe, nine nines of purity is no problem.

Next, the last step is the use of the energy block, the sintered energy block, like a brick, into a huge hemispherical kiln.

In the center of the kiln is a high platform where a pot-like thing is placed. When the energy blocks in the kiln are all placed, one kilogram of reaction core powder will be put into this pot.

Next. This reactor core powder, which will be like a reactor in the Ministry of Nuclear Power, will carry out a critical reaction, release energy, and be absorbed by the energy block.

According to Xiao Wei's calculations, the time required for an energy block to go through the entire process is a full year.