Zhenguan Divine Cannon was an instant hit, and several neighboring countries had already learned of the appearance of this thing in advance, some countries even began to show favor one after another, and some even took the initiative to ask to be vassals of the Tang Dynasty.

All of a sudden, the documents continued to be sent to the Taiji Palace.

Li Shimin was so happy that he couldn't stop smiling, and there has never been a country like Datang, which directly sacrificed a divine soldier and made other countries surrender.

Of course, these countries do not include the Turks and Tibet, but also Goguryeo and Gaochang, and they are still waiting and seeing.

Not only Li Shimin, but the entire Tang Dynasty is full of joy.

10,000 cannons were also put into production, but fortunately, the time given by the system was long enough, otherwise it would be a lot of problems to solve too many problems in a short period of time.

In the early stage, Li Chengqian planned to produce a part of the artillery for special training, because the angle of the cannon affects the hit rate, and if he did not fight well and did not obey the order to fight again, it would cause huge losses, and no one wanted to bear this kind of consequences.

Although there are many cannons and their combat power is powerful, the problem is that the transportation of this cannon is really a problem.

Therefore, Li Chengqian also specially went to the Taiji Palace to discuss the future direction with Li Shimin.

Several ministers were also present at this time.

Li Shimin first said: "With the Zhenguan Divine Cannon, all countries will surrender to my Tang Dynasty in the future." ”

At this time, Li Chengqian said: "Although I said that, there is one thing that Your Majesty should also pay attention to!" ”

"Oh? What is it? ”

"Your Majesty must have not taken the question of distance into account."

As soon as these words came out, there was indeed such a problem.

That Fang Xuanling said: "This is a big problem, this General Cheng may be deeply aware of this, sometimes, from Chang'an to the Turks, it often takes a lot of time, plus follow-up supplies, it takes even longer." ”

Cheng Yanjin also said: "That's right, when I fought in the world with His Majesty, the time spent on each battle was very much, if I could solve the big problem of vehicles and ships, it would be good!" ”

Li Jing said: "Why not build a road? Everywhere, maybe it works! ”

This suggestion was directly denied by Du Ruhui.

"Building roads? That's a waste of money and labor. And this road is very affected by the weather, take the north as an example, when the snow closes the mountains, the road is useless! ”

Fang Xuanling said: "If there is a road, it will not go anywhere, at most, it will only be more than a hundred miles a day!" If there is more, I'm afraid it won't work. Even if people can stand it, horses can't stand it! ”

He was not wrong at all, most of the transportation was carried out by chariots and horses, and boats were only useful by water.

Hurried travel may be bearable for people, but not necessarily for horses.

After considering everyone's considerations, Li Shimin fell into deep thought.

At the same time, he looked at Li Chengqian, who had been silent, and asked, "Gao Ming, do you have a way?" ”

Because Li Chengqian's expression was calm, unlike other ministers, his brows were furrowed, which proved that he must have a way.

Sure enough, Li Chengqian opened his mouth.

"Your Majesty, everything will only wait for the establishment of my Ministry of Science and Technology, and my sons will conduct a lot of research on it. And Erchen also had an idea. ”

"Oh? What's the idea? ”

Li Shimin looked very curious.

Li Chengqian began to say: "Your Majesty, please look at the sand table!" ”

Following the direction pointed by Li Chengqian, everyone saw that there was an extra car on the sand table.

So everyone began to ask suspiciously.

"What is this?"

"This is a train! No matter how bad the environment is, it can drive between the mountains and forests, as long as there are two railroad tracks, you can reach any place in Datang, and drive for a day, you can top the usual one-month journey! ”

The speed of the train is from 60 to more than 100 per hour, and it can run 24 hours a day, and at the end of a day, it can run a thousand kilometers, and from Chang'an to the border of Datang, it will not be more than 2,000 kilometers away, so basically if you reach the border, it only takes one day to be enough.

When Li Chengqian's words came out, everyone was shocked.

Running for a day for a month, that's so powerful!

At the same time, no one has the slightest suspicion about Li Chengqian's train, why? Because Li Chengqian had given them too much shock, what Li Chengqian said now, people thought it was, and at the same time, some people who opposed Li Chengqian were almost cleared.

In the entire court, it can be described as peaceful.

Of course, it was also because of Li Chengqian's talent, and it would be impossible for someone else to do such a thing.

Cheng Yanjin shouted: "In this way, some places can come from the morning and evening!" Catch your enemies off guard! ”

Li Jing said: "No, in this case, the materials will be replenished in time!" ”

The ministers were also amazed.

"That will be no less than the existence of the Zhenguan God Cannon!"

"Is there really such a thing in this world?"

It's like this, and it's endless.

Li Shimin walked to the edge of the sand table and looked at it slowly.

Finally, he said a word.

"When will this train be completed?"

That's what he wants to care about the most.

Li Chengqian said directly: "If it's fast, it's one year, and if it's slow, it's three years!" ”

You know, it's easy to build a train, but what about the power system?

The steam engine needs to be studied, and this researcher is not yet in place, and his teaching ability has not yet been used?

Where did the train come from?

In fact, in his opinion, it will not be more than a year at most, and he said three years, so that when the time comes, when he really makes it, everyone will be shocked.

"Good! If you need anything, I will definitely use the power of Datang to help you complete it! ”

"Thank you, Your Majesty!"

"Nope! Yes, I want to thank you! Gao Ming, you have been fortunate for a while, and when the time comes to get married, I want to give you a month off and accompany the crown princess well, so that you can ignore state affairs. ”

"Your Majesty, your son can resist, it's fine!"

Li Chengqian didn't want to waste his life on love.

All he wants is conquest! It's not that you love me!

"Hahaha, it's really my son, ambitious! Ok, good, good! You have to learn from the prince! He is the model of Datang! ”

The more Li Shimin looked at Li Chengqian, the more satisfied he became.

Li Chengqian suddenly remembered something, that is, Ouyang Xun had news there, so he said: "Your Majesty, Erchen still has something to do, about the Ministry of Science and Technology, so I want to leave first!" ”

In the entire Tang Dynasty, I am afraid that only Li Chengqian dared to talk to Li Shimin like this, and he had something to leave.

"Yes, you go and get busy!".

Li Shimin was not angry, but waved his hand to signal that Li Chengqian could leave.

Li Chengqian walked out of the Taiji Palace and headed towards the East Palace, where three people were anxiously waiting.