Fei Cai found that he had been working as a translator for the past few days.

First of all, he found a few textbooks on military training and military theory, selected the useful ones, translated them, and handed them to Qinglei for study.

Then he met the old farmer, who was said to be very good at farming. The old man's name was Li Tian, and after some conversation, he took out a textbook on crop cultivation from the library in his head, translated some on the spot and told the old man. Li Tian was really interested, Fei Cai simply spent almost a day to tell the relevant practical content in the textbook, Li Tian couldn't read and write, but his memory was very good, and after remembering what Fei Cai said, he hurried back to experiment.

But that's not all.

In the past few days, Biluo has completed the compilation of the "doctrine", and the next work of spreading the doctrine is to be entrusted to the elders in the village. As for Biluo's task, it is to continue learning.

At that time, in order to let her understand the law of gravitation as soon as possible, Fei Cai directly omitted many irrelevant mathematical and physical knowledge. But in order to continue to learn more theories, these basic knowledge is indispensable, so Fei Cai translated these fragments and handed them over to Biluo to learn by herself.

After finally clearing up, Fei finally had time to think about a problem at hand - how to integrate the two villages?

The most direct way, of course, is to let all the villagers of Jinglei Village relocate, which is also the way that many large villages in the Wu clan annex small villages. However, if this plan is adopted, first, a large number of new thatched huts will be built, and second, even if the villagers can move over, their arable land will not be available, so in order to give them land to plant, they can only reclaim the cultivated land next to Biluo Village. These two things add up, and the amount of work is huge.

Another option is to build a road between the two stockades. The straight-line distance between the two villages is actually very close, and as long as there is a convenient road, it is easy for the villagers of the two villages to walk and communicate. But the problem is that building a good road is also a big project.

At the end of the day, both options involve infrastructure. Based on his own experience as a modern person, Fei Cai knows that if society wants to develop, infrastructure construction cannot be avoided no matter what.

But now that the population in his hands is small and agriculture is not yet developed, vigorously engaging in infrastructure construction will inevitably affect agriculture, which is also a contradiction that cannot be ignored.

Of course, he also has a hole card - exchange the instant exchange charm for a bunch of modern construction machinery, such as an excavator, and find a few smart villagers to teach them to use it, so that the road will be much easier.

But this method, when there is no other means, Fei Cai does not want to use it. First, points are precious and cannot be wasted, so what if you want to exchange them for something particularly important but expensive in the future?

Second, the excessive use of this modern machinery is likely to affect the development direction of this small society, and it is likely that it will not be able to establish a theocratic society in the end, but will develop a mechanical industrial civilization similar to that of modern society. Although that is considered a success in farming, it is not in line with Fei Cai's idea.

The autumn air had receded from the heat, and Fei Cai sat on the floor on the first floor of the stone building, feeling the cool autumn breeze while thinking about these questions. Beside her, the beautiful shrine maiden was bowing her head, "rustling" and writing formulas.

Maybe it was because the environment was too comfortable, Fei Cai thought about it, and gradually became a little sleepy. Just as the drowsiness gradually hit, there was a sudden scream of rock power in the distance.

He suddenly sobered up, and when he fixed his eyes, Yan Li was hurriedly running towards the stone tower.

"Lord Feicai! I found it! I found it!"

There was still some distance away, Fei Cai saw Yan Li's excited expression, coupled with his excited shout, even Biluo raised his head curiously, wanting to see what was going on.

"Lord Feicai! I, I understand! I finally understand!"

Finally ran to the front of the stone building, Yan Li didn't even have time to breathe, so he said loudly.

"Don't get excited, speak slowly. ”

Fei Cai asked him to sit down, and at the same time asked Biluo to pour him a glass of water.

After drinking a large glass of water, Yan Li finally calmed down, and only then did he tell his latest discovery.

After hearing this, Fei Cai couldn't help but move, and asked, "In other words, what kind of system did you comprehend the runes given to you by the witch god?"

"Back to my lord, I repeated the deduction a few times, and I felt that my idea should not be wrong. But whether it's right or not, please give me some advice. Yanli said.

Fei Cai thought for a while before he said: "I didn't learn much about runes from the witch god, but after listening to what you said, I think you are very likely to be right." ”

According to the rock force, runes are divided into two categories, one is the basic rune, their function is to "generate power", such as the gravitational rune shaped like "G", which is the basic rune, and the other type of rune, which cannot produce power by itself, but can change the power of the basic rune.

For example, when it is combined with a gravitational rune, the effect of the gravitational rune is completely changed - this new rune no longer attracts the surrounding objects, but repels the surrounding objects!

This is also the reason why Yanli has not been able to study the "Repulsion Rune" before, because the "Repulsion Rune" is not a basic rune at all, but a combination of two runes.

If the discovery of rock power is correct, it will be a significant breakthrough. This means that runes will quickly enter the scope of practical application, and many difficulties in the construction of the village will also be solved.

Thinking of this, Fei Cai was also a little excited: "Let's go, let's go and see it now!"

A moment later, he, Biluo, and Yanli came to the clearing full of stone slabs.

"These are the runes that can convert gravity into repulsion. Yan Li took out a stone slab and put it in front of Fei Cai. "This gravitational rune was charged by Lord Biluo before, and when I combined the new runes, the gravitational force turned into a repulsive force. ”

"Hmmm......"

Fei Cai looked at the newly combined rune, which was shaped like an arrow, and combined with the gravitational rune in the shape of "G", it seemed to mark the "G" with a vector symbol, but if there was anything special, he couldn't see it.

He recited the law of gravitation, recharging the runes with energy. As the soft white light gradually brightened, he suddenly felt a modest thrust.

"Sure enough, there will be repulsion. ”

He looked at Yan Li and Biluo beside him, and the two of them nodded at him.

"Did you find any other runes of this kind besides?" Fei asked.

Yan Li nodded hurriedly: "In addition to this, there are several." One is combined with gravitational runes to make all surrounding objects weightless, another is to concentrate gravity in a specific direction, and the last is the strangest one, when combined with gravitational runes, only heavy objects are attracted, while light objects are not. ”

Hearing this, Fei Cai's heart suddenly lit up. Of the three runes that Yan Li said, the first two sound like they play the role of vectors, and the last one seems to play the role of logical judgment.

Vector control means that complex mechanical structures can be constructed, and logical judgment is even more powerful, which means that automatic control can be realized.

Could this be the true face of the rune system? Could it be that it is really possible to build a whole industrial system similar to modern civilization by relying on runes alone?

If that's the case, the rules of heaven and earth in this mission world are simply unbelievably ingenious!