In fact, judging from the development of steam engines, the earliest vacuum steam engines were quite safe! However, Jiang Xingchen designed a piston steam engine, which had high requirements for the boiler and a very large internal pressure! If there were no safety valves and pressure gauges, it would be quite dangerous.

It's just that these things are not written in the monthly magazine, and even if they do, it is estimated that no one will be able to understand them. Even he himself first perceived the guò formation, and then designed it according to the number jù.

However, even Jiang Xingchen didn't expect that Chongming Island would really be able to make a boiler out of cast iron materials. His initial idea was to let Chongming Island accompany him with a large sum of money, and consume manpower, material and financial resources in vain.

If he knew that Chongming Island had such manufacturing capacity, he would never have said the principle of steam expansion. Even if the boiler explodes, people can be regarded as making progress.

Now the son of the An family doesn't think so, he only knows that he was severely cheated by Jiang Xingchen this time. The loss is too great, not only the problem of money and materials, but also the fact that those people in the Ministry of Industry are craftsmen with many years of experience, and they can't buy it with any amount of money.

"Jiang Xingchen, I am inseparable from you!" The furious An family smashed everything that could be smashed in the house.

After a long time, the movement in the house subsided, and the shopkeeper Wu, who had been waiting at the door, took a deep breath and walked in boldly.

"The ...... of the Prince"

"What are you doing?" As soon as the shopkeeper Wu called, the prince of the An family raised his head suddenly, his eyes were bloodshot, and his face was hideous.

Shopkeeper Wu was so frightened that he opened his mouth for a long time, and he didn't say a word.

"What's the matter, say!" An Jiazi's voice was hoarse.

Only then did the shopkeeper Wu react, and hurriedly said, "There are people coming over there on Liuxian Island." Said that the ancestor let you pass. ”

"Liuxian Island......" The son of the An family muttered and let out a long breath. The mood slowly calmed down. I finally heard good news.

"Got it, you go down first!" Jiang Xingchen waved his hand, and Shopkeeper Wu breathed a sigh of relief. He turned and ran away.

After a while, the sect master of Xuanyuan Heavenly Sect walked in, looked at the messy room, and said lightly: "You have to be careful at any time when fighting with Jiang Xingchen, who would have thought that my Xuanyuan Heavenly Sect would be like the sun and fall to the point where it is today!"

"Indeed!" The prince of the An family surprisingly did not show any arrogance, nodded and said: "I thought that if Jiang Xingchen dared to announce it in the monthly magazine, there would not be much of a problem, the big deal was to spend more manpower and material resources." Didn't expect ......"

"In that respect, that kid is simply not human...... The Qiankun Empire is united with the Great Emperor, and no one dares to secretly imitate it! The Four Kingdoms have just passed through the costumes, and the same will not be true! In this way, except for the hostile forces such as overseas and the Eight Great Kingdoms and Xuanyuan Tianzong, he is not only in danger at all!"

"Now that it's happened, I can see through it, but I couldn't have imagined it before!"

The prince of the An family took a deep breath and said softly: "I'm afraid it may not be Jiang Xingchen's intention to do this...... I was sent to a letter by the Ministry of Works. Since even we say that it is difficult, it is impossible to make boilers with the manufacturing capacity of various forces on the mainland, so Jiang Xingchen will be relieved and bold to announce the structure of the steam engine in the monthly magazine!"

"Okay, let's not talk about it!" the sect master waved his hand. He asked softly, "Over there on Liuxian Island, has the ancestor of the An family sent a letter?"

"Hmm!" An family nodded.

"In this way, the purple jade gourd is ripe......" Two fine lights appeared in the sect master's eyes.

Purple jade gourd. The top-grade genius treasure is definitely something that a martial artist dreams of. Since it was discovered on Ruxian Island more than a hundred years ago. The An family lost more than 30,000 people to drive away the high-level demon beasts that guarded the genius treasure. And since then, the ancestors of the An family have not asked about the world. Guarding the purple jade gourd like a demon beast. Now, the genius treasure is finally about to mature!

"Sect Master, don't think about it! The Old Ancestor is one hundred and thirty years old this year, and he was promoted to the eighth level of Yuan Qi ten years ago. Now rely on the purple jade gourd to hit the peak. The son of the An family shook his head.

The sect master didn't care, and shook his head with a smile: "Shizi, you are not authentic! If the ancestor is not enough, how can he let you go? This shows that there are a lot of purple jade gourds......

"Sect Master, you should know, I don't count this matter!" said the prince of the An family with a straight face.

"Of course I know this!I just hope you can take me to Liuxian Island to meet the Ancestor of the An Family!"

"This ...... Alright!" An Jiashizi hesitated for a moment and nodded slightly.

Seeing this, the sect master laughed and said, "Then let's decide...... It's ridiculous that Tang Tian, who is old and immortal, still thinks that he will be able to promote to the eighth layer of vitality, and keeps saying that he is the number one master in the world! If he knew that the ancestor of the An family was already at the eighth level of vitality ten years ago, he would not be able to die in shame!"

"Hmph! When the ancestor breaks through, he will prove to the world who is the number one master...... That killer whale will also become a reserve resource for settling down...... I don't know if Jiang Xingchen's grenade can also be lethal to the Great Perfection Martial Artist at that time. ”

There was a cold light in the eyes of the prince of the An family, and after saying this, the room fell silent......

Of course, Jiang Xingchen didn't know what was going on on Chongming Island, and he rushed back all the way, and Jiang Xingchen's mind was not idle.

The steam mechanism was fine, but the fuel asked and brought it up again. Xingchen can use biogas as fuel, but not in other places, it will definitely consume a lot of charcoal, which is not what Jiang Xingchen wants to see. In his previous life, he lived in a haze, and he didn't want to make this world like that. However, the new fuel did not come out all at once, and he will have to pay more attention to this in the future.

Fortunately, the popularity of steam engines is not high, and fuel is not a priority in the short term.

Then there's rubber, which isn't an easy thing to do. With machinery, it is only the first to start the plastic, and the subsequent process still needs to be studied.

In addition, the smelting side is not easy, now the requirements for steel pipes are getting higher and higher, and the cold drilling technology must be grasped.

Also, the wine promised to Catwoman hasn't been brewed yet, the bike hasn't been studied, and the flat glass hasn't been made.

Now that the underground facilities of the territory are almost complete, it is time to start construction on the ground, and once the new city is built, these things will be used......

One of the most critical is the study of steam locomotives. It's not because of a bet with the old man, it's mainly that after the new city is built, the materials needed will be greatly expanded, and at that time, with the wolf sled, as well as Hongyuan City and the three collars in the east, the supply is definitely not enough! The appearance of steam locomotives is imperative.

In the previous life, Jiang Xingchen had seen the head of the steam locomotive in the museum and heard the introduction, but it was quite complicated to study, and he was not absolutely sure that he would succeed.

Then there is the problem of the overseas Liujushu Island. Once the rubber research is successful, there needs to be a permanent presence there. There is a killer whale escort at sea, don't worry. But it's not easy on the island, which is thousands of square miles. How to garrison it and who to send there are all difficult problems!

In terms of Xingchen Ling, when will his wedding with Mei'er be held, and after the new city is built, will the way of tourism continue to be the previous model. Good food, good drink, good fun, what kind of innovation should these things have. How to attract tourists.

Over there in the Cursed Lands, with the mass production of paper, how should the cultural industry be carried out?

Outside, an amusement park in collaboration with the Second Prince and the Sixth Princess.......

One thing after another passed through Jiang Xingchen's mind, and Jiang Xingchen found that he had too much work to do. Building a city is far from being as simple as he first thought.

There are a lot of things that need to be studied in construction, and it is even more difficult to take into account development. And the most important thing he hasn't studied is electricity......

"Boy, I've been thinking all the way! Don't think about it, I'm home!" the old man's call interrupted Jiang Xingchen, and he looked up to see that he was almost at the entrance of the town.

"You're really boring, there's nothing to do on the road, let you fight with us for a while, the landlord won't do it, I'm stunned alone, I really don't know what you're thinking?" the old man nagged and got out of the car.

Jiang Xingchen smiled and didn't answer, anyway, he said that the old man couldn't understand.

"What's that...... Brother, this is Mei'er's birthday, do you have to get something delicious?" Zhao Danqing walked over and asked with a smile.

When he said this, the old man's eyes instantly lit up, staring at Jiang Xingchen.

"What is delicious! How can I have that time...... It's just the two of us on this year's birthday, nothing to do with you?" Jiang Xingchen waved his hand.

"Don't! It's not a big deal, let's have a meal together!" Zhao Danqing grabbed Jiang Xingchen's arm.

"I really don't have anything to do now, and it's the same for you to eat the restaurants in the territory!" Jiang Xingchen reluctantly pulled out the arm that was grabbed by Zhao Danqing.

"Can that be the same......" Zhao Danqing was about to say more, but Jiang Xingchen shook his hand and ran away, and Mei'er in front of him had already come out.

"Mei'er, it's been a busy time...... My brother has found you a nice gift, you must like it!" took Mei'er's little hand.

However, Mei'er's expression was a little dignified, and she said in a low voice: "Brother, the world business is in trouble!"

"Huh?" Jiang Xingchen was stunned for a moment and asked, "What happened?"

"A letter from the Great Qin Empire, Sister Qin Manwu was detained as soon as they arrived in Kulun, asking them to mobilize a large amount of tea to ......" Mei'er said, handing a letter in her hand to Jiang Xingchen.

Jiang Xingchen opened it and watched, the letter was sent by the emperor of the Great Qin Kingdom! Qin Manwu did not send a letter to him asking for help at the first time, but hoped that the Great Qin Emperor would find a way.

"Sister Qin Manwu may be worried that the people we sent will also be detained, so she didn't notify us...... The tea leaves are ready......" Mei Er said when Jiang Xingchen read the letter.

Jiang Xingchen narrowed his eyes, closed the letter, and rubbed Mei'er's head: "I can't spend this year's birthday with you!" (to be continued......)