"Okay, you don't have to look at me with that look, I'm just an idea, by the way, I've forgotten about the Tiangong Department recently, what happened to the steam car you said, after I watched it last time, why hasn't there been any movement until now." Li Er suddenly remembered that there was still this matter.

"Hey, the emperor, don't you say that the minister still forgot, now the steam car should be almost transformed, if you want to get one, the emperor can directly ask the Ministry of Heavenly Engineering to build one for you, the current Ministry of Heavenly Engineering is busy improving the steam train." Zhang Nan said with a smile.

"Steam trains? What's that? Li Er asked strangely.

Zhang Nan then briefly explained to Li Er what a train is and what kind of changes the appearance of the train can bring to Datang.

"You mean to say that you want to build a railway track that can run this steam train between the major state capitals of the Tang Dynasty, and then the exchange of materials between the major state capitals will become easier?" Li Er asked with a strange face, although Zhang Nan's idea still sounds pretty good, but why does it sound so unrealistic?

The land area of Datang is not small, even if it is just to build this track in a few large state capitals, it sounds quite unrealistic, how much iron will it cost. Of course, this is just Li Er's idea.

"Not only will the exchange of materials become simpler, but more importantly, the circulation of commerce and information, as well as the circulation of the people." Zhang Nan explained.

As the saying goes, if you want to get rich, you must first build roads, and you must build railways with great wealth. This sentence is not in vain, the role of railways in the development of a country is self-evident.

"I understand the truth, but even if you pave any tracks made of iron in the major state capitals of the Tang Dynasty, but this iron will rust, how can it be as simple as a few miles between the major state capitals? If something goes wrong along the way, tell me what to do. Li Er asked.

"This problem is easy to solve, we have set up a small station between the major state capitals of Datang, and there are special railway maintenance personnel in it, and the daily work is to inspect the integrity of the railway, so that the risk can be minimized." Zhang Nan said.

"Well, this matter is not a trivial matter, once the construction starts, it will be a matter of the whole Tang Dynasty, this is a national policy, I can't promise you so easily, I can only make plans after seeing the steam train, if the steam train is really as useful as you say, I will think about it again, after all, this is not a job that can be done simply with iron." Li Erdao.

Zhang Nan also nodded, in fact, this steam train is still in the transformation stage, and Zhang Nan is not in a hurry.

"One more thing, when will you be able to get the crops that you said will be able to be made for me, I remember that you said that you must have a suitable boat, and now you have built a car that can run without horses, this boat without oars, should you also pay attention to me." Li Er asked suddenly.

When Zhang Nan heard Li Er ask, he thought that there was still such a thing, and Li Er would have forgotten about it.

In fact, Zhang Nan can't be blamed for this, mainly because there has been no famine or anything in Datang recently, so the food is enough, and I can't think of the food at all.

"Your Majesty, do you still remember? The ministers have forgotten about it. Zhang Nan smiled and scratched his head and said, this matter is a historical problem here in Zhang Nan, Zhang Nan didn't expect Li Er to remember.

"Nonsense, how could I forget such a thing? If you really get back those crops that are two or three crops in one season, our people in Datang will no longer be hungry, and you can forget such an important thing? Li Erdao.

"Okay, you are the head of the Ministry of Heavenly Works, as long as I have the result, I can delay the steam train, the matter of this ship, you have to make it the top priority of the Ministry of Heavenly Works, do you understand?" Li Er didn't wait for Zhang Nan to answer, and directly gave an order.

Zhang Nan had no choice but to respond, anyway, he didn't engage in R&D work, but Zhang Nan still trusted those craftsmen in the Ministry of Heavenly Engineering.

After accompanying Li Er to play a few more games of snooker, Zhang Nan estimated that the time was almost up, so he said to Li Er: "Your Majesty, the time should be almost up, let's go back and continue to get my mother's hair, after getting the hairstyle done, let Yue'er put on makeup, which is definitely no different from what you saw in the morning." ”

As soon as Li Er heard this, he also put down the club in his hand, anyway, he was going to lose this game, so Li Er didn't want to continue to play. However, Li Er returned to the accommodation and did not enter the room as soon as possible, but had a stomachache for a while and wanted to go to the toilet.

Although Li Er's private room has a private bathroom, Li Er always feels that there is a strange feeling of going to the toilet in the sleeping place, so Li Er still went to the toilet outside, while Liu Bing accompanied Comrade Li Er to the toilet, and Zhang Nan went back to the room in advance.

returned to the room, and Zhang Nan found that Concubine Yang and Cui Yue had already returned to the room.

"Lang Jun, you are back, I have been waiting for you for a long time." As soon as Cui Yue saw Zhang Nan coming back, he quickly stood up and said.

Zhang Nan smiled and scraped on Cui Yue's nose and said, "What's the hurry, aren't I coming back?" ”

The simple interaction between Zhang Nan and Cui Yue made Concubine Yang see it clearly, and Concubine Yang said with a smile: "The relationship between you two young couples is really good." When Zhang Nan heard this, he generously hugged Cui Yue's waist and said, "Of course." ”

Concubine Yang saw Cui Yue's happy and happy face, and said with envy: "It's so good, I heard that even the emperor wants to marry Princess Changle to you, but you refused?" ”

"Hey, the minister thinks that it is enough for the minister to have Yue'er, and he doesn't need anyone else." Zhang Nan said with a smile.

"That's nice." After Concubine Yang finished speaking, she stopped talking, Zhang Nan could see that Concubine Yang was also very envious of the feeling of being favored by one person, but Comrade Li Er definitely couldn't do it, not to mention that Concubine Yang was not favored.

When Zhang Nan saw Concubine Yang's sad look, he hurriedly diverted the topic and said, "Niangniang, I'll get your hair done now, it's almost time, and the potion should have been absorbed by the hair." ”

"Did you say you just dropped the potion on my head? Why doesn't this medicine smell bad at all? On the contrary, there is a strong fragrance? Concubine Yang asked strangely.

Zhang Nan unwrapped the clip on Concubine Yang's head while explaining to Concubine Yang what was going on with this potion. After all the clips were removed, Zhang Nan asked Cui Yue to take Concubine Yang to wash her hair again.

After everything was ready, Zhang Nan took out the cosmetics that had been prepared and began to ask Cui Yue to paint makeup for Concubine Yang, why not let Concubine Yang paint it herself, because Zhang Nan really didn't dare to agree with the aesthetics of Datang, even if Zhang Nan brought the cosmetics of later generations to Datang, but the aesthetics still did not change.