Zhu Di quickly knew what Li Jie meant by "waiting down". Amid the sound of the rumbling train, Zhu Di sat in the gorgeous carriage, with a sumptuous banquet in front of him. Although the car moved very quickly, it was not very bumpy. At least it was completely fine to eat normally.

"This car was also driven by that steam engine?" Zhu Di quickly reacted after the initial shock and asked in shock. After all, the railway and train had just been repaired, and he lived alone overseas, so naturally he had no news.

"Yes, like a steam boat, this thing is called a steam locomotive, but now the people prefer to call it a train. At its speed, we can return to the capital before evening." Li Jie replied with a smile.

"Train?" Zhu Di repeated the strange name. He didn't know the origin of the name yet, but it was understandable to think that the steam engine really needed fuel to drive it.

"By the way, I just saw that the car was running on two railway tracks. I think the cost of building such a railway must be not low, right?" Zhu Di suddenly thought of the railway tracks under the car, so he asked again with concern. He is also attracted by the train and the railway, but he doesn't know if he can afford the cost?

"This..." Li Jie hesitated for a moment, and finally sighed, "To be honest, the cost of a train is expensive, but the most expensive one is actually the railway under his feet. In order to build this railway, not only did the imperial court pay money, but the bank also raised funds. In the end, it is estimated that it can be compared with the annual silver production of Japan."

"So much!" Zhu Di couldn't help but scream when he heard this answer. Although he guessed that the railway was expensive, he didn't expect it to be so expensive. After all, Japan's annual silver production is at least several million taels. With so much silver, it may take several years to piece it together with Goryeo's national strength.

"After all, it is the first railway, and I have no experience in the early stage, so the cost of course is greater. As the technology matures, the cost of building a railway will definitely drop a lot in the future, but it will still not be a small amount." Li Jie explained again.

Although the distance from Beijing to Taijin is not too far, it is the first time to build a railway, and many problems need to be overcome. Sometimes problems occur and even demolished and rebuilt, which is why it costs a lot. This is because of Zhu Yunyu's full support. Otherwise, if someone else becomes the emperor, the railway will definitely not be built.

"This is not a railway. It's just a road with silver. I can't afford to build it so expensive!" Zhu Di couldn't help but complain. He originally wanted to build a section of railway in Goryeo and even America, but now it seems that he can't afford to build it at all.

"In fact, the reason why railways are expensive is that the iron price is too expensive now. After all, the steel production in our Ming Dynasty is limited and the railway consumes so much, so the iron price will certainly not be cheap. But if the large amount of steel can be produced, the iron price will be reduced, and the cost of the railway may be saved several times." Li Jie said again.

Although the steel output of the Ming Dynasty has been increasing, it still cannot be compared with those of later generations. The main reason is that most of the territory of the Ming Dynasty is poor iron ore, and it is difficult to smelter steel. Coupled with the technical limitations of this era, the steel output of the Ming Dynasty is increasing, but the speed is not fast and far from meeting the current demand.

"I remembered that when I heard you say that, there seemed to be many large iron ore found in the west of Goryeo, and the ore quality was very high. However, Goryeo is not short of iron, so the amount of mining is not large. If it can be mined, it should be able to reduce the price of iron a lot." Zhu Di couldn't help but mutter to himself when he heard this. If Goryeo had enough iron, it could trade with the Ming Dynasty in exchange for railway technology.

"Goryeo is indeed rich in coal and iron, but I'll talk about it when I see His Majesty." Li Jie smiled slightly, and then asked Zhu Di to sit down and eat the food without explaining too much.

Zhu Di originally wanted to ask Li Jie again. Zhu Yunyu saw what he was going to talk about, but when he saw that Li Jie seemed unwilling to talk about this topic, he didn't ask too much in the end. He simply ate and chatted with Li Jie. After the meal, he lay down and slept for a while.

When Zhu Di woke up again, the train was slowly driving into Beijing Station. After the car stopped, Li Jie also asked Zhu Di to get off. It was getting late at this time. It was supposed to be arranged for Zhu Di to have a rest before going to see Zhu Yunxiu.

But Zhu Di slept in the car for a while, and had enough food and drink, so he was not tired at all. Moreover, he was anxious to see Zhu Yunxiu and ask about the situation clearly, otherwise he would not be at ease at all, so at his request, Li Jie could only take him directly into the palace.

In fact, Li Jie could also guess what Zhu Di thoughts. After all, he would definitely think a lot in his mind when he suddenly called him back this time, but Li Jie still didn't plan to explain. After all, it was not convenient for him to talk about some things, so he would rather let him talk to Zhu Yunxi. After all, it is more convenient between their uncle and nephew. His son-in-law of the Zhu family is still an outsider.

Zhu Yunxi seemed to have known that Zhu Di would come to see him, so he kept waiting in the warm room. When Li Jie and the others entered the palace, he also came to the palace gate to greet him in person. After meeting, the uncle and nephew were very intimate, and there was no way to tell whether they had any knots.

Zhu Yunxi welcomed Zhu Di to the warm room and waved his hand to let the others retreat. Zhu Di thought Li Jie would stay, but he didn't expect Li Jie to leave at this time, which made him frown. As a result, he and Zhu Yunxi were the only ones left in the warm room.

"Uncle Fourth, you must have worked very hard all the way. I originally wanted to ask you to rest for a night before talking to you in detail, but since you insist on seeing me, why don't our uncle and nephew have a thorough talk tonight!" Zhu Yunsheng pulled Zhu Di down and poured a cup of tea for the other party with his own hands.

"Your Majesty, please be polite. Let's just say something. What's wrong with Your Majesty summoning me to the capital this time?" Zhu Di was not polite either. He reached out to drink the tea and then asked directly.

"This..." Zhu Yunxiu hesitated for a moment, and seemed to be a little difficult to speak, but in the end he still said seriously, "Okay, I know that Uncle Fourth, you are a straightforward person, so I won't go around the corner. You mentioned you want to build a naval school before, but I was actually very hesitant. Uncle Fourth, you should know what I am hesitating, right?"

"I can guess some, but Your Majesty Don't worry, I vigorously develop the navy. The main purpose is to focus on America in the future. It will never threaten the security of the Ming Dynasty!" Zhu Di said directly again. At this time, he finally understood why Li Jie left. These words were indeed inconvenient for outsiders to hear.
Chapter completed!