This time, for Luo Cheng, is undoubtedly a holiday.

But Luo Cheng is not completely idle, because even if he doesn't go out to lead the troops to fight, there are still many things to be busy with.

After he was not entangled in government affairs, the first thing Luo Cheng did was to go to see Father Hu. During this time, Yanyun's business did not stop, but developed extremely rapidly.

Anyway, Luo Cheng was not very interested in Father Hu's introduction anymore, because he was too rich, and for him, this thing was just a number, and there was nothing to care about.

What surprised Luo Cheng was that Huba's research on the steam engine seemed to have made progress again. On the basis of the original improvement, the power of the steam engine has been greatly improved.

This was indeed an unexpected joy, and Luo Cheng didn't expect Huba to be so talented. When he led his troops to the battle, he actually tinkered with a steam engine himself, and it came to fruition.

So Luo Cheng came to the workshop again, and Huba was leading people to study in it, and it could be seen from his expression that he had indeed spent a lot of energy on it, and he looked a little haggard.

When Huba saw Luo Cheng coming, he immediately showed surprise on his face, he was looking forward to it for Luo Cheng to come back. It's so hard to study by yourself, and it's a pain in the brain.

Although Huba had succeeded during this time, he was still very aware of the actual situation, and if it wasn't for the plan left by Luo Cheng, he would not have been able to achieve his goal.

During this time, Huba has apparently learned a lot. If there was no Luo Cheng to guide the way, I'm afraid he would just be an ordinary businessman now, where could he get access to the steam engine?

For researchers, it is undoubtedly an extremely happy thing to see that what they are doing can make progress. Huba is the same, he wants to share the joy with Luo Cheng, but he also has a lot of problems.

Luo Cheng didn't think too much about it, in his plan, the importance of the steam engine was undoubted. It is undoubtedly a cause for joy that progress has been made today.

When he saw Huba, he said, "What is the appearance of the wooden ox and flowing horse now, take me over to see, you have worked hard these days, I am afraid it is not so easy to study this thing."

Hearing this, Huba hurriedly shook his head, although the process was a bit hard, but in fact he enjoyed it, so there was nothing to say, just lead the way.

Luo Cheng and his entourage came to the courtyard, and a well-assembled steam engine was ready to go. After many processes, the steam engine was finally started, and there were many changes compared to before.

In addition to the increase in speed, stability and tension have been enhanced to varying degrees. This is undoubtedly an excellent signal, and perhaps it won't be long before Luo Cheng's plan can be officially implemented.

After all, the existence of the steam engine not only brought trains, but also included various instruments and tools, which could run without the need for manpower and played a great role.

Anyway, at this moment, this thing will inevitably be able to promote the development of social productive forces to a great extent. Let Huaxia reach a certain boundary faster, and then it will naturally go to that step.

Of course, Luo Cheng is also guided by a plan, if it is wanton and barbaric development, no one knows what the consequences will be. Luo Cheng had not experienced that era, and he knew that it would not be a good thing.

In this way, Luo Cheng and Huba were busy again, anyway, there was nothing urgent now, he could spend his energy here as much as possible, in order to achieve his goal faster.

……

At the same time as Luo Cheng was busy.

Sun Simiao and Yuan Tiangang gathered together, and this time Sun Simiao traveled with the army, and he felt a lot of emotion, that is, he wanted to discuss with his old friends, and he also poured out his heart.

"This time I went to Chang'an, I didn't expect the battle to end so quickly, it's really incredible." Sun Simiao said in a trance, although he did not participate in the war, he also saw the whole process of the war.

I have to say that when Sun Simiao saw the explosives thrown into the city tower, he was really confused, this is simply the power of the thunder, which is extremely amazing. The thing under Li Yuan is very different.

In fact, Sun Simiao didn't know the existence of gunpowder, as a Taoist priest who studied medicine, he naturally tried to practice pills, but in the end he found that it was useless.

Sun Simiao never thought that the power of the gunpowder could be so amazing. However, from the perspective of other doctors, it is inevitably a little embarrassing, does this hurt the heavens and the peace?

However, Yuan Tiangang and Li Chunfeng listened to Sun Simiao's description, but they were extremely calm, as if they didn't take it too seriously, and it seemed that they had expected it, which made people not know what it meant.

Yuan Tiangang said indifferently: "Even in the troubled times, it is not a big deal to use this thing." Attacking the city with such divine power may also be a good thing, and the casualties on both sides will be reduced. ”

"Besides, since there is such a strange thing, if a foreign enemy dares to invade in the future, it will also be more secure, don't you think so?" Yuan Tiangang shrugged his shoulders and said disapprerovingly.

Sun Simiao opened his mouth, and he was stunned for a moment, because he found that he couldn't refute it. Maybe Luo Cheng's use of explosives is really not a bad thing, as long as it is not used to harm the people, it is indeed miraculous when used against the enemy.

Thinking of this, Sun Simiao was inexplicably a little emotional, he looked at the two of them and said in a deep voice: "I didn't expect that in this short period of time, the prince of the world will lead the army to defeat Li Tang, I'm afraid it won't be long before he can dominate the world."

Sun Simiao thought of what Luo Cheng and him said at the beginning, if he can really return the world to peace, it seems that there is nothing bad about it. Regardless of the process, the result is what matters.

After all, Sun Simiao can see some traits in Luo Cheng that are different from others. Maybe this is the reason why Luo Cheng has been able to get to where he is today, which makes people think about it.

Li Chunfeng echoed his words: "Even if the two of them calculated that the son of the world would one day sweep the world, they never expected this day to come so quickly."

"Looking at the previous dynasties, this speed is terrifying, but it can also be seen that the prince is indeed not a mortal, and I don't know what will happen to the world in the future." Li Chunfeng said with emotion.

"If you really claim the title of emperor, I don't know where you think the kingdom should be determined?" Sun Simiao thought for a while, looked at Yuan Tiangang and the others thoughtfully, and asked.

Although Sun Simiao's question was sudden, Yuan Tiangang did not appear surprised, but stretched out his finger and pointed to the ground, and said: "If you really want to be the emperor, I'm afraid you don't have to move to another place, this Beiping City is just right."

Sun Simiao was surprised and was about to ask.

saw Yuan Tiangang say again: "There is a dragon vein here."