"I'll talk about this later. Please ask my cousin to call some people over. After the prince lets the father feel the charm of the train, you are pulling it back."

Xiao Zhengtai looked at Changsun helplessly, but he had no choice but to violate the orders of his father.

"yes!"

For Changsun Chong, Xiao Zhengtai's words are even better than his father's words. He is not delaying at the moment, so he turns around and runs away.

After Changsun Chong left, Xiao Zhengtai took Li Er to climb onto the train and followed the morning process and went again.

"Is this over?"

Before Li Er could feel anything, the train stopped, which made Li Er very unhappy and did not understand the goodness of this thing at all.

"Father, because it was a test, I did not lay the tracks too far, so that the speed of the train could not be increased at all. This is also impossible."

Xiao Zhengtai shrugged helplessly. Needless to ask, the father’s current thoughts must be the same as Cheng Chumo’s attitude during the morning test. It’s not that he doesn’t want it, but that the conditions really don’t allow it.

"Didn't you start moving a month ago? Why is it so slow?"

Hearing such words, Li Er frowned. The Tang Dynasty did not raise people who had eaten hard, and in a month, these guys did what they did.

"Father, this is already very fast. You see, in order to keep the track running smoothly, the rails must be laid like this."

After the two got off the train, Xiao Zhengtai took Li Er to watch the already paved railway tracks. This thing sounds simple, but when you really get started, you will find that work is not that easy to do.

"Why do you need to do this in one go? Just run on land?"

After just glanced at the railway tracks, Li Er understood that his idea was wrong and building a railway was definitely not an easy task.

"Father, if it's just a front of the car, the weight may not be much. What if there are several carriages hanging behind the front of the car? It can transport thousands of tons of goods at a time, or even thousands of people at the same time. What kind of ground do you think can withstand such weight?"

Only outsiders would ask such idiot questions. Xiao Zhengtai did not explain why, but asked directly. With such weight, he would probably fall into the road without waiting for the car to drive and would not be able to move at all.

"What? Chi Nu, are you sure what you said is true?"

Li Er was really shocked. Just such a small machine had such great power, which was simply unimaginable.

"Father, don't you understand me? I never tell lies!"

Xiao Zheng nodded heavily. He knew that it was difficult for people to believe his words, but the power of machinery is like this, and the power of science is so powerful. This is an iron-like law.

"Okay, since that's the case, the research progress of the train and the laying of the railways must be completed as soon as possible. If you need anything, you will tell your father directly that the father will definitely support him with all his strength!"

After hearing Xiao Zhengtai's promise, Li Er took a deep breath to relieve his mind and said with a serious look on his face. He knew what the train meant to the Tang Dynasty, and finally understood why Xiao Zhengtai was so persistent and had to build a railway.

"Thank you, my father. I have already told my uncle to cancel all external orders in the past few days and do my best to produce railway tracks. As for the construction task, I have not started to take action. It may be difficult for the royal family to complete such a difficult task alone.

So the son-in-law still had some ideas to discuss with his father, but before he could say it, he was called here by you."

Xiao Zhengta grinned. He would give orders without hesitation if he could make decisions, but he had to ask Li Er for a major decision. Only when he nodded and agreed, he would not have any worries.

"Well, let's go back and discuss this matter!"

Li Er nodded slowly and did not ask Xiao Zhengtai any good ideas. This time he went out to verify the existence of the train and the possibility of popularization in the future.

Although he didn't know much, Li Er was able to see the future development of the train. He would not deny this, otherwise he would never agree to Xiao Zhengta's move.

"Father, then let's go back to the palace now?"

After the matter is decided, it is a waste of time to stay here, so Xiao Zhengta directly proposed.

"No, I'll go to your uncle's mansion. I want to see the production process of this thing."

After saying that, Li Er turned around and walked towards the carriage. After feeling the train, Li Er realized that the comfort of the train was inevitable that he would be more anticipated in the future.

Recently, Changsun Wuji has been extremely busy, afraid of any flaws in the production process, so he will be present in every link and watch the craftsmen work.

Under the leadership of Changsun Chong, Li Er and Xiao Zhengtai went directly to the smelting place in the backyard. Even if the experimental train was tested today, Changsun Wuji had no time to go over and watch in person, and focused on supervising the craftsmen's techniques.

"The old minister doesn't know that Your Majesty is visiting and has not been able to welcome you. I hope Your Majesty will forgive you!"

After hearing the footsteps, Changsun Wuji immediately turned around. When he saw His Majesty and the Xiaozheng Empress Dowager, his face changed drastically and he hurried forward to salute.

"I have worked hard during this period of time. I have made great contributions to the development of the Tang Dynasty!"

Looking at Changsun Wuji's haggard face, Li Er knew that he was afraid that his beloved had not had a good rest during this period and devoted all his heart to this place.

This also made Li Er very pleased. If all the civil and military officials in the court could do their best to the Tang Dynasty, he would probably not have been so tired.

"I am ashamed of you!"

After knowing that Your Majesty did not mean to blame him, Changsun Wuji breathed a sigh of relief and began to introduce the matters on the production line to Li Er in detail.

Li Er was interested in listening, but the little boy beside him was yawning, so he was so tired that he was embarrassed to leave Li Er here, so he could only bite the bullet and stand up.

"My dear, how many rails can your mansion produce in a day?"

Li Er was still very satisfied with the craftsmen's skills. You should know that the distance from Chang'an to Lingnan is very far away. A railway track is only only five meters away. If it is paved, the number of railway tracks required will probably be very huge.

"At most twenty pieces, and they are processed day and night!"

Without any hesitation, Changsun Wuji opened his mouth and answered. Obviously, this number was calculated accurately by their time.

"So little?"

Li Er frowned. At this speed, if the railway was to be paved to the Lingnan area, it would take until the year of the Monkey and Horse Month.

"Father, don't forget that this is my uncle who specially builds a factory for the royal family to need. My uncle also has a smelting plant in other cities and smelting plants. As long as the iron ore resources are sufficient, other factories can also produce railway tracks. Now it's not time to delay transportation and the manpower to professionally build railways."

The reason why I chose to cooperate with the Changsun family was that they had sufficient iron ore resources and could provide building materials continuously without delaying the construction period.
Chapter completed!