The dust has settled on Li Su's change of title to the crown prince, and Li Chengqian has also been properly handled, and now Li Su has begun to focus on the internal development and external development of the Tang Dynasty, and the internal struggle between the princes has consumed a lot of his energy before, and now this matter has been resolved, and he can finally withdraw and sit firmly in Yizhou.

"Your Highness, wait a minute, the satellite can be launched." In the Australian base, Li Ran and Li Su were standing at a satellite launch base, and in the center of the base, five rockets up to 100 meters high were standing.

It was the first time Li Su had seen such a large rocket, and he wondered: "Why is this launch rocket so tall." In the morning, Li Su got the news of Li Ran, so he took a plane to the Australian base.

"Because this is a project with seven satellites with one stone, the rocket will send seven satellites into space at the same time, and five rockets will send 35 satellites into space at the same time, and then we can complete the global positioning system in one step." Li Ran explained.

"Seven stars with one stone!" Li Su is still the first time I heard that it seems that today's science and technology point of view, one arrow and three stars are extremely difficult things, but he is too lazy to ask about these high-tech things, as long as it can be realized, it doesn't matter what else is, and after this batch of satellites go to the sky, Li Su can use the navigation system, which will bring great convenience to Yizhou's expeditionary fleet, and it seems that mobile phones can also be used, "In addition to the positioning system, is there a follow-up satellite launch?" ”

Li Ran said: "There are also meteorological satellites, resource satellites, spy satellites and the like, and we will establish a complete satellite system." ”

Li Su nodded lightly, and followed Li Ran to a safe observation position, and after a while, various rockets were ignited and lifted into the air, and the close-up observation made Li Su still be slightly shocked, and then he asked: "After the number jù system is established, don't forget my mobile phone." ”

Li Ran smiled and said, "Your Highness, don't worry." We have prepared a set for His Highness, and we will send it to His Highness when the time comes. ”

Seeing the rocket take off, Li Su thought that his car could finally be used for navigation, and he thought about when he would install it on the ships of the fleet, but before that, I am afraid that a batch of new ships will be built.

"By the way, is the engineering team ready?" Li Su turned around and asked, he and Li Ran had made up so many fake contracts, and it was time to implement them now.

The project in Yizhou includes a reservoir and a solar power plant. Asphalt roads and many other projects, for this reason, Li Ran has specially produced a batch of the latest engineering machines, and equipped with the most advanced equipment, "It is already in place, as long as His Royal Highness gives an order, it can be driven to Yizhou, and all kinds of materials can also be transported to Yizhou at any time, His Royal Highness does not have to worry about transportation." ”

"Well, in that case, let's let the engineering team go. This power matter has been delayed for so long, and it is time to implement it, and the railway matter will be delayed for the time being, and there is a power grid. I don't think there's any need to use a steam locomotive anymore, do I? The rocket was no longer visible in the sky, Li Su said as he walked out of the launch site.

Li Ran followed closely and echoed: "This is naturally no problem, so that the waste of some resources can be avoided." ”

and Li Ran finalized this matter. Li Su returned to Yizhou by plane, and in the next few days, just as Li Ran promised Li Su. A large number of transport planes arrived in Yizhou, and a large number of engineering aircraft people got off the transport planes and went to the designated location to start the construction of the project, and the officials of Yizhou also began to take action, cooperating with the engineering team to coordinate various things, and Yizhou began to enter a period of great development.

Yizhou is busy in full swing, Li Shimin seems to be unwilling to be lonely, Yizhou's taxes have filled the treasury a lot over the years, and now Tang Kangtai, Daming Palace, which was stranded by Li Shimin, has been put on the agenda again, and this task Li Shimin decided to hand over to Li Su's engineering team to handle, because the construction of Daming Palace at the level of Chang'an naturally requires huge costs, but it is different when handed over to Li Su.

The first is Li Su's transportation capacity, and the second is that Li Su's engineering team is now very professional, and the construction of any building is very efficient, and more importantly, only Li Su's engineering team understands some modern design, Li Shimin is too comfortable to live in the Shu Palace, and it is becoming more and more inappropriate to apply the living of Taiji Palace after going back.

Of course, Li Su did not refuse Li Shimin's request, because Yang Li's construction team is now in a quiet period, and the arrival of the Australian engineering team makes them even more useless.

"Father, this thing is called a mobile phone, you only need to call your son's phone in the future, you don't have to send people all the way to Yizhou, you can have a lot of time left." Li Su handed over a modern old age machine to Li Shimin, it's not that he didn't want to hand over a high-tech smart phone to him, it really didn't make any sense, this kind of old age machine was enough for Li Shimin to use, and he couldn't use things that were too out of the times.

Li Shimin looked at Li Su with strange eyes, his eyes were full of suspicion, and he said, "What nonsense are you talking about!" Can I use this thing to talk to you directly in Yizhou? ”

Li Su smiled bitterly: "Father, in addition to Erchen, you are the second person to use this thing in Datang, and you will understand if Erchen teaches you to use it." ”

So Li Su asked Li Shimin to press a few digits on his mobile phone, and then, his mobile phone rang, which startled Li Shimin and said, "Why is this ringing?" ”

Li Su continued: "This is the peculiarity of mobile phones, you need to press a number to connect to a number, as long as the mobile phone of this number is connected, then you can call." Then Li Su pressed the answer button and put it in Li Shimin's ear.

Li Shimin said a few words according to Li Su's words, and his voice really came out of it, which made him really surprised, and then he asked Li Su to go out with his mobile phone, and continued to talk to Li Su, asking and answering, and after verifying Li Su's words, there was no objection.

In order to verify this thing, Li Su drove from the north of the city to the south of the city, and when he came back, Li Shimin played with his mobile phone, and from time to time he let out a sound of admiration, and wiped it with a silk cloth from time to time, as if he regarded the mobile phone as a treasure.

Seeing Li Su coming back, Li Shimin beckoned to Li Su, and said with a mysterious face, "In the future, my father and emperor can talk directly to his son-in-law and Li Zhi." ”

"Father, after this son goes back, he will give each of them one, and when the time comes, if the father wants to call whomever he wants, he can just dial the number directly, and if he wants to, you can also call back." Li Su explained.

Nodding with satisfaction, Li Shimin still couldn't stop looking at it, and said: "This Luo Anguo's technology is really magical, such a small thing can transmit sound thousands of miles away." ”

Li Su thought to himself that this was them standing on the shoulders of giants, otherwise, according to the regular historical development, this should be the kind of brick machine that appeared first in the big brother, "Hehe, there will be more magical things in the future, and the father has the opportunity to see it, but, father, how much does the father plan to spend on the construction of this Daming Palace?" ”

Speaking of Daming Palace, Li Shimin tilted his head and looked at Li Su and said: "In the future, the whole world will be yours, and you still want to make money from your father." ”

Li Su waved his hand and said: "Father, you have misunderstood the son-in-law, how dare the son-in-law ask you for money, but the workers of this construction team are all required to pay money for the construction project in Yizhou, and now that the treasury is full, there is no need to requisition labor to make the people complain." ”

Li Shimin nodded and said: "What you said is also reasonable, but anyone can do this coolie work, this cheap can't let the people of Yizhou take all of it, this technical matter is managed by people from Yizhou, and this coolie worker will recruit people near Chang'an." ”

"That's as it should be." Yang Li's original intention was to recruit some people locally, otherwise the cost would be too high if he came from Yizhou.

After all, the matter of Daming Palace is a trivial matter, Li Shimin and Li Su mentioned it and passed, and Li Shimin's attention was attracted by the mobile phone again, "By the way, is this the only one?" Li Shimin shook the mobile phone in his hand.

Li Su naturally understood what Li Shimin meant, and took out five mobile phones from his sleeve like a trick, but they are all simple elderly machines used by the elderly, and this is currently the most suitable for them.

"Father, the number of this mobile phone has been posted on the mobile phone, just use these numbers." Li Su said, "Also, this mobile phone needs electricity." Then Li Su explained to Li Shimin the simple use of common sense.

There are two split smooth screens on the front of this elderly machine, one of which is used for display, and the other is a solar cell, which can be charged at any time, for this function, Li Su and Li Shimin emphasized it, because it is not a matter of one or two years to power up here in Chang'an, therefore, Li Su specially customized this special elderly machine, and solved the charging problem of mobile phones once and for all.

With Li Su's explanation and help, Li Shimin learned how to use his mobile phone, and then Li Shimin urged Li Su to return to Yizhou, and he was also ready to test whether he could really talk to people in Yizhou directly, which made Li Su speechless.

arranged for Yang Li to build Daming Palace, Li Su drove back to Yizhou, and when he just returned to the mansion, Li Shimin's phone came, these two days, Li Shimin didn't sleep well, pinching the time to calculate when Li Su could return to Yizhou.

"Father." Li Su answered the phone.

"Have you arrived in Yizhou?" Li Shimin's voice came, and there was the sound of Empress Eldest Sun chuckling inside. (To be continued......)