In theory, no one would come to the prison area. Except for some soldiers or some officials from the Ministry of Works who would come to make some materials or issue work arrangements, there would be no chance to see so many officials from the Tang Dynasty.

At this moment, not only officials, but even the aristocratic families came to contact the Rubik's Cube. Although this was not a credit for the surveillance of himself, Lao Liu still felt honored.

"Su Meng, give him the things." Li Chengqian looked at the old man Liu's face that smiled like a chrysanthemum, took a deep breath, and waved to Su Meng behind him.

I just came out of Li Xiaogong's printing shop, and the large amount of printed materials was too heavy. Li Chengqian didn't want the little beauties around him to run around the street with such heavy things on their backs. Calling Su Meng to be a coolie was also the only thing that was the subject.

"What?" Liu Min asked inexplicably as he looked at Su Meng's huge pocket.

"The manual, from now on, every time a Rubik's Cube is leaked from the supervisor, it must be accompanied by a manual." Li Chengqian kicked the bag with his foot.

Liu Min reached out to open the bag with a question mark on her forehead, took out a thin instruction manual from it, looked at the only pages of paper and asked, "What can this thing do?"

"Don't worry about what you can do, in short, do as my palace told me." Li Chengqian had no intention of explaining what happened to Old Man Liu. After compulsory arrangement of the task, he said: "Don't send out all the Rubik's Cubes, leave some, and I want to give them away."

"Here!" Although Liu Min didn't know what happened, he did not dare to disobey the prince's orders, so he could only agree to it with a tough bullet.

"Okay, you're busy, I'm back." Li Chengqian arranged the matter well and planned to leave.

"Hey, Palace, Your Highness, do you still remember what 'I-shaped steel' you said?"

"'I-shaped steel'? What's wrong?"

"We made a few pieces, but I don't know if it's suitable." Liu Min rubbed her hands: "I just made them out these days. I wanted to report to the palace, but I didn't expect to happen to the Rubik's Cube, so it was delayed."

Li Chengqian's face changed, and his eyes focused on Liu Min's face.

"Then, that, your highness, my minister..." Liu Min quickly realized what the problem was, and her smile gradually disappeared, and was replaced by a full of embarrassment.

"All holidays will be cancelled this year. Can you agree?" Li Chengqian's face was gloomy and he was very dissatisfied with the old man Liu Min's unclear public and private behavior.

"Answer, promise! It should be done!" Liu Min also knew what kind of mistake he had made, and he also got rid of his complacent emotions, and cold sweat kept falling from his head.

The Rubik's Cube is just a toy, and no matter how many things you make, it is not a good job. The steel trial production work that Li Chengqian explained is the most important. Liu Min seems to have done all this backward, so it is understandable to be repaired.

"In two days, I will send everything to the Research Office, and I will need gravel and some thick wood. Do you understand?" After knocking on Liu Min, Li Chengqian continued to arrange the next thing.

He has been trying to do a train for a day or two. He has been thinking about the day he has made the steam engine. Now the railway is the worst test. As long as it can pass the test, the railway can start construction.

Li Chengqian discovered that since he returned from Xianyang, he seemed to have never had a day off and was running back and forth on the way to the old man's study every day.

Just now, I came out of the old man at noon yesterday, but after a while, I came again.

"Su Meng, don't believe that bird is new!" Li Chengqian, who didn't remember how many times he came to the old man's study, pointed to the sparrow falling on the eaves of a palace like complaining.

"I'm sure." What could Su Meng say? Although this guy is a little straightforward, he is never stupid.

He would not argue with the "boss" who is in charge of his job about the right or wrong of a matter. He didn't care whether the bird was new or not. Anyway, as long as he answered according to Li Chengqian's wishes, he would definitely be correct.

However, this fool didn't know that Li Chengqian actually wanted him to say "not believe". Only in this way would he have the chance to continue bragging. As a result, his words "memberly trust" blocked all the words Li Chengqian had prepared.

I came to the old man's study room depressed all the way. After the report, the old man called in. He came to me with an impatient sentence: "What, what's wrong today?"

"Well, my father, I want to come to you to approve the notes." Li Chengqian said, rubbing his hands and salivating his face as if he couldn't feel the impatientness in the old man's tone.

"Comment notes? What are you going to do?" His Majesty Li Er took his attention away from the memorial in his hand and looked at Li Chengqian suspiciously.

"The path, my father, I'm going to work as a supervisor to get out the railway tracks. I'm planning to do an experiment these days. If the experiment is successful, then the railway from Chang'an to Luoyang can start to be built."

"If you want to build a railway, just build it. Don't say that you, the prince, don't even have the right to build a road. You were not so cautious at the beginning." The old man was a little dissatisfied with Li Chengqian's statement, and felt that this kid must have had some "conspiracy".

"Father, the railway is easy to build, but it is difficult to do manual work. You have to approve some manual work for your son? Moreover, the road construction requires land acquisition, and some special places even have to pass through the people's homes. You have to pay for compensation, right?" In just a few short sentences, Li Chengqian revealed his fox tail.

The old man obviously heard the implicit sound of his strings and coughed and asked, "I want money again?"

"Father, the money of the nobles has not yet been in place, and the project must be carried out quickly. Look... this time it was borrowed by the son minister from you, would it be successful?"

Although Li Chengqian had money, he did not intend to invest the money on the railway. In this case, he could only borrow a part of it from the old man. After Cheng and his friends handed over all the money in the future, if possible, they would return it to the old man.

Of course, if it is not possible, you can only owe the money first and wait until you get the money when you get it. Or if it delays for a long time, it is impossible to say that you don’t pay it back.

"Are you really sure? What train can really be like you said?" His Majesty Li Er asked uncertainly. Until now, he still felt that what Li Chengqian said was too fantastic.

A car that is completely driven by steel is driving on a road made of steel without being pushed or led by animals. With Lao Li's wisdom, how does this thing work?
Chapter completed!