The emperor wants to take a car to Chengtianfu, so what else is there to say, no matter how much it drops, it has to be made.

Wang Xuan was no longer verbose, and began to take people to make equipment.

In fact, the equipment for manufacturing steam engines is nothing more than drilling machines and grinding machines, because the copper pipe connected to steam is similar to the barrel of a gun, and the manufacturing method of steam pistons is somewhat similar to that of a gun barrel, but the requirements are a little higher.

Of course, Wang Xuan only knows how to build these two kinds of equipment, and he can't build other milling machines, boring machines, etc., so he can only make a fuss about these two kinds of equipment.

Yang Cong is not idle, the teaching disciples have already consumed too much of his time, plus the research and development time of this steam engine, almost a year has passed, and there is no shadow of this steam locomotive.

He promised Jiajing that he would build a steam locomotive within three years, otherwise, Jiajing would really be annoyed by his untrustworthy words.

The emperor's anger is not a joke, it's better to hurry up, let's make it.

He took the initiative to undertake the design of the rails and carriages, and began to build them day and night with the help of carpenters and blacksmiths.

This rail is not very difficult, it is just an I-beam, and it can be done by finding a way to cast it, and with the current technology of the School of Physics, he doesn't even have to worry about the casting thing, he just needs to draw a simple cross-sectional drawing.

After the rail is cast, there are not many places to be processed, as long as the two surfaces in contact with the wheel are smoothed out, and then a few holes are drilled to connect the sleepers, and the other surfaces are basically not processed.

This carriage is a bit troublesome, this trouble is mainly at the bottom of the carriage, don't look at a few wheels below, in fact, there are many things, not only the wheels have to be designed and cast, but also the connecting rods between the wheels and wheels, axles, including steering devices, etc., have to be designed one by one.

As for the real carriage above, it is the simplest, it is almost the same as building a house, except that the main structure of this house is iron square and iron plate, not wood square and stone or something.

He had thought that everything else would be fine with the wheels, axles, and connecting rods under the carriage, but he never thought that he would be in trouble as soon as he cast the track samples.

This trouble is not technical, the rails to smooth both sides is more troublesome, but there are grinders, it will take a little time, a little manpower, as long as more people, more grinders, the processing of rails is also quite fast.

The main problem was that the rails were too iron-intensive, and he processed a few of them, and the iron stored in the Physics Institute was almost consumed.

Of course this is not possible, you must know that the track he is making now is only one zhang long, even if it is a one-way lane, a distance of one mile will also use thirty rails, and the capital is nearly two thousand miles away from Huguangcheng Tianfu, and it takes fifty or sixty thousand rails, and the demand for this iron is not half a star.

At this time, salt and iron are controlled by the imperial court, and you can't buy it if you have money, and there is no such thing on the market at all.

In desperation, he could only enter the palace again to find Jiajing.

He entered the palace at this time, which once again aroused Yan Song's vigilance, because his disciple Li Chunfang had just won high school, and if he took advantage of the situation to make a comeback at this time, I am afraid that Jiajing would agree without thinking about it.

Jiajing was naturally very happy when he heard that Yang Cong was coming, this kid is not simple, what can be done, repelling the Tartars, exterminating pirates and pirates, and recovering Annam, there is nothing he can't do, and even if he goes to run an academy, he can teach the disciples of high school champions!

To be honest, Jiajing wants Yang Cong to come back and continue to serve in the imperial court at this time, but unfortunately there is no suitable position at this time, otherwise, Jiajing will probably take the initiative to find Yang Cong.

At this time, Yang Cong actually came to the door by himself, which was naturally the best.

After the monarch and the ministers saw the salute, Jiajing said cordially: "Qingfeng, I didn't expect you to be so good at teaching, Li Chunfang, Shen Lian, Yang Jisheng, one champion, two second-class fronts, I was shocked when I heard that they were all your disciples." ”

When Yang Cong heard this, he hurriedly said modestly: "Wechen doesn't dare to take credit, the reason why they can get such good results in the exam is mainly because they study diligently and hard, and Wechen is just urging them." ”

Jiajing smiled slightly: "There are so many people in the world who read books, and there are not 100,000 but 8,000 who are diligent and hardworking, why haven't I seen a few good exams?" Okay, don't be modest, by the way, you came to look for me, can't you bear the loneliness anymore, and want to go back out of the mountain? ”

Yang Cong shook his head again and again and said: "No, no, there are still many things on the side of Weichen Academy, and I am afraid that there is no time to come out to take up a post for the time being." “

When Jiajing heard this, he said regretfully: "Oh, that's it, then what are you looking for?" ”

Yang Cong hurriedly explained: "Your Majesty, that's the case, didn't Wechen tell the emperor last time, the fire of the five elements is used to the extreme, and it can also promote the car of thick gold, Wechen has studied hard and finally came up with a feasible method, however, this method needs to consume a lot of iron and stone, so Wechen wants to ask the emperor to support some iron and stone for use." ”

When Jiajing heard this, he couldn't help but be surprised: "Oh, have you really thought of a feasible method, what method, how much iron and stone do you need?" ”

Yang Cong explained: "This method is more complicated, Wechen will not be verbose here, and the emperor will understand when he sees the real thing, as for the iron and stone, Wechen estimates that it will take at least five or six million catties." ”

Five or six million catties!

Jiajing was taken aback when he heard this, these days, why does the imperial court want to control iron and stone, it is afraid that those rebellious ministers and thieves will use iron and stone to build weapons to rebel, swords, guns, swords and halberds have no technical content, ordinary blacksmiths will build them, if someone uses iron and stone to build weapons to rebel, wouldn't it be troublesome.

Of course, Jiajing didn't suspect that Yang Cong wanted to rebel, the key was that the demand for iron and stone was too great!

You must know that the average ordinary weapon is only about ten catties, five or six million catties, which is enough to build a weapon equipped with five or six hundred thousand troops.

Jiajing couldn't help but ask: "What are you doing with so much iron and stone, can't you use it to pave the road?" ”

He was joking, because he couldn't figure out why he needed so much iron.

Unexpectedly, Yang Cong nodded seriously and said: "The emperor is wise, and Weichen needs to use these iron stones to pave the way." ”

Yes!

Jiajing couldn't help but be surprised: "It seems that it is enough to use ordinary bluestone slabs to pave the road, why use iron and stone?" ”

Yang Cong explained unhurriedly: "Because this car of thick gold weighs tens of thousands of catties or even tens of thousands of catties, if you go directly on the road, the wheels will definitely sink into the ground and not get out, so Weichen wants to pave the rails on the road in advance, so that the car of thick gold can drive on the railway, so that you don't have to worry about the wheels sinking into the soil." ”

Yes!

When Jiajing heard this, he couldn't help but be dumbfounded: "There are nearly two thousand miles from the capital to Chengtianfu, are you going to lay two thousand miles of railroad tracks?" ”

Yang Cong nodded without hesitation and said, "The emperor is wise, Weichen just wants to lay such a long railroad track that he needs so much iron and stone." ”

Then there is no way but to give.

Jiajing thought about it for a while, and finally nodded: "Okay, let's transfer it from Xuanfu Town, it just so happened that you opened an iron mine there at that time, and there is already a lot of storage over there at this time."

It seems to be a bit troublesome to transfer it from Jizhou Town, but it is better than going to open the mine again.

Yang Cong hurriedly arched his hand and said, "The emperor is wise." ”

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