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Yuxi took Jun Ting away, Wei Wenchang was very anxious, the situation in Liaodong was dangerous, he didn't know if Luo Killing Immortal Ghost Ji would make a move in this half a month, if he did, even if Yuxi arrived in Liaoning, the loss would be irreparable.

Da Chu pays more attention to human nature than Luo Shu, and that is only relative. Luo killed the serfs like pigs and dogs, and Da Chu was slightly better, at least he treated the people as people. But in the eyes of the aristocracy, people are divided into three, six, nine and so on, and the difference is very big.

Tens of thousands of ordinary soldiers died, Wei Wenchang didn't care, if it was Cheng Liang who died, General Zuo, General Hu Ben and the like, it would be really painful.

Renault returned to his study, took out a pen and paper, and wrote the word communication, this is a big trouble, Da Chu's communication is naturally much stronger than that of using a roar, but the area of Da Chu is too large, even if it is a bird communication, it will take a long time.

The map of Da Chu has been drawn by the God of Wealth, and this map is still installed in the central control computer of the God of Wealth, and there is no printer. Moreover, such a thing as a map, in the Great Chu world, is a state secret.

Renault doesn't have to worry, things that can be drawn, can only be taken slowly, the God of Wealth is a satellite map, can no longer be expressed on a scale, that is meaningless, even if the God of Wealth is not a professional military map, it can be accurate to the centimeter.

From the somewhat ambiguous Liaodong District of Great Chu, with the border city of Heishui as the northern terminus, to the border city of Maine in the south, the straight-line distance is as long as 38,000 miles, and the actual control area of Great Chu is even more than that.

The Oriental Water Source Military Port, to the farthest border city of Jiuquan in the northwest, is 29,000 miles.

What a huge empire this is, if so much land can be moved to the earth, it will be developed, and with the development of earth technology, the population can live well if it doubles.

He didn't know how fast the fastest flying bird could fly, judging from the speed at which Wei Wenchang delivered the news, it would take at least five to eight days to fly from Los Angeles to Blackwater Border City. The reliability of this way of flying bird communication is too poor, even if a group of people are released at a time, whether the news can be transmitted in the end can only depend on luck.

Communication, this is a necessary condition for mastering a big country, Renault admires the Da Chu royal family a little, how they control this country.

I remember when I was studying history, there was a term called the absolute circle of control, which referred to transportation and communication. The distance that can be reached in one day is the absolute control circle of a country, and what can be reached within three days is the control circle, and if it is more than ten days, it can only be determined by fate, if it takes a month to reach, let it go.

The absolute control circle of communication is slightly weaker than the role of traffic, but the truth is relative, as long as information can be transmitted, the intensity of control will be multiplied.

The traffic problem is not considered for the time being, even if Renault has the ability to build high-speed and suspension systems in Dachu, there is no corresponding vehicle, and it is in vain to think about it.

Communication, you can think about it, now there is a cable telegraph, although it is very rough, but it can be used, as long as the telegraph line is paved, and then a hydroelectric generator is erected, it can be used. No matter how fast the bird is, can it still outrun the electrical signal?

Renault continued to write under the newsletter: brushed, copper wire. Resin, enamel.

This should not be difficult, Dachu is not short of minerals, there is a God of Wealth, Renault will not be lacking, and the problem of smelting is not difficult to solve, drawing wire, enamel, as long as there are enough manpower, it can be solved.

The trouble is stealing, copper is a metal that is very valuable, whether it is the earth or Dachu. On the earth, copper is an important industrial raw material, and in Dachu, it can be used directly as money, and copper coins are the most circulated coins.

Headache, the people of Da Chu are very poor, and if they are poor, they will think about change, except for those who are waiting for death, they will have some ideas. There are so many people who know about such a big project, and it is almost impossible to keep it a secret.

If you dare to start wiring, there will be countless people who are not afraid of death and cut off the copper wire you laid at night.

I crossed out these words written on the paper casually, and this way didn't work, so it seemed that I had to find another way. Wired doesn't work, it seems that he has to find a way to play wireless, and Renault feels that his steps are a bit big.

Is radio complicated?

Naturally not, the principle of radio, to put it bluntly, is three words: electricity generates magnetism.

Relatively sophisticated radios, Renault can't play, the diode is a difficulty that he can't cross in a short time, and the simpler wireless telegraphy has countless disadvantages, but there is only one advantage, and the probability of being able to make it is high.

Renault wrote on a piece of paper as he recalled: modulator, tuner, frequency modulator, geophone......

Renault has to choose a few of them, which can be completed under the current conditions, and try to ensure that the transmitted signal is clearer and can be received clearly by the receiver.

As for the distance, I'll think about this later, Da Chu lacks everything. Wireless telegraphs are just children's toys on the earth, and a complete set can be bought for dozens of dollars, and it is easy to achieve a transmission distance of tens of meters and hundreds of meters. As long as the power is large enough, the transmission distance can be improved slowly.

For three days in a row, Renault wrote and drew in his study, and finally came up with a plan that seemed feasible.

At this moment, Renault didn't have time to pay attention to this, and the God of Wealth reminded that Yuxi was preparing to attack a boulder with all his might. Renault looked at Yuxi on the screen, quite satisfied, he made his request, he didn't ask the principle.

The energy collected this time is a little less than the last time, only 0.72, the difference is not very big, two collections, remove a little loss, and in the storage warehouse of the God of Wealth, there is another unit of energy ball.

Comfortably, from now on, Brother Lei will be able to become an earth immortal lying down, although there is still a long way to go, isn't there any hope? If he followed the previous cultivation method, he felt that he would never want to become a grandmaster in ten lifetimes, let alone an earth immortal.

Having a hen is cool, Renault is thinking, whether to raise a few more hens, then the speed of laying eggs will be faster, greatly shortening the time to become an earth fairy.

Shaking his head, no, at least not now. Do you think hens are easy to bully? It's his luck to meet a melancholy uncle like Yuxi.

No matter how calm Yuxi is now, Renault doesn't dare to fully believe him, in a short time, Yuxi shouldn't have a problem, it's hard to say after a long time.

What's more, next to this hen, there is also the fierce beast Junting, and the pillow wind is a necessary skill for women, and the attack power is super high.

It's really pitiful, when I arrived in Da Chu, I didn't want to find someone who could discuss things, Jun Ting, this woman, has a very good talent, if you make her an earth immortal......

No, no, the two earth immortals are husband and wife, isn't this fatal? If they have crooked thoughts, who else can restrain them.

Best......

Toilet!

Whether Huzi's talent is good or not, Renault can't figure it out, after several grandmasters and more nine-rank martial artists, the final conclusion is not wonderful, Huzi's talent, I'm afraid it's quite average.

When I met Huzi, Huya was just a first-class martial artist, and he had been practicing martial arts for several years. Renault piled up countless resources on him, and the amount of wild parameters used was even more than that of Renault, plus additional resources such as transparent small fish, Huya's current strength was only eight grades.

It's really no harm if there is no comparison, the resources consumed by Huya in a year are many times more than the resources used by Luo Yi from childhood to adulthood combined, but Luo Yi has long been at the peak of the nine products.

Or, Gong Churui?

This is not even better, this girl usually looks quite stable, but Renault can feel that the hatred in this girl's heart has not diminished at all. She is a smart girl, and she knows that Renault will not fight with the Martial King Mansion because of her, and can only rely on her own strength, so she has not moved.

If she becomes an earth immortal, she will destroy the Wuwang Mansion in minutes. The Martial Palace's death is gone, and Renault naturally won't feel distressed, but the power represented by the Martial Palace's family is very powerful.

If the Wuwang Mansion is gone, Da Chu will be chaotic, and Renault can guess the result no matter how good he is in politics.

As for the Tiger King and the Tiger Girl, forget it, those two mentality is not enough, if they suddenly become earth immortals, Renault feels that the danger is even higher than Junting.

The most suitable person is actually yourself, but how many units of energy do you have to have?

In the next ten days, the days were a little boring, not idle, in fact, Renault was very busy. If it were on Earth, the experimental wireless telegraph was so simple that Renault didn't bother to buy all the accessories, and if he couldn't get it in five minutes, he would despise himself.

But such a simple manual work, in the world of Da Chu, it is not simple at all. Transformers, Voltage Regulators, FMs, Transmitters, Receivers......

All of this, to be done from scratch, wound with copper wire, customized with metal, this is a world without even screws.

Have you ever seen a fist-sized buzzer?

Have you ever seen a voltage regulator the size of a box?

In order to facilitate production, Renault enlarged all the components, not for the purpose of transmitting and receiving power, but purely for the difficulty of production.

Fortunately, Renault has studied electronics and semiconductors, which is the basic knowledge he needs professionally, and he hasn't touched it much for some years, and he still needs to keep recalling when making it.

As a protagonist, Renaud feels that he is inferior, and the benefits of other people's travel are either unforgettable, or he can recall all the books he has read.

These, Renault didn't have it, there were some knowledge points, he couldn't think of anything, so he could only deduce it backwards through other remembered knowledge points, and the final result made him want to cry, how could he forget such a simple thing?

Cui Qing was also very busy, building a shelf in the inner courtyard and the outer courtyard, requiring a height of ten zhang, and a metal rod should be erected on it, and a copper wire was connected under the metal rod.

Lei Shi explained this thing called antenna, but he pondered for more than ten days, and he didn't understand that the electromagnetic waves that can't be seen, what kind of play is that?

When Renault harvested the energy of the three units, the work in his hand was finally almost completed, a room full of parts, assembled into a large radio transmitter, and the power of this transmitter will not be much greater than that of a toy.

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