On this day, Yang Cong once again led Zhang Juzheng and other disciples to the hardware school, because Wang Xuan had already led someone to make a sample of the steam engine, and he was waiting for him to accept it.

It was still the same large room, still a pile of copper pipes, a stove, a copper kettle, and a copper pillar with a small wooden frame on top.

However, this time, the copper pipe has already been assembled, and the water in the copper kettle has already been boiled, and it seems that it is waiting for acceptance.

As soon as Yang Cong and his party came in, Wang Xuan said with a slight swagger: "Qingfeng, I've already tried it, this thing can really move up and down on its own." ”

Of course, if you can't keep moving up and down, then there will be a problem.

Yang Cong stepped forward with great interest, opened the only valve, and suddenly, the small steam engine moved up and down with the small wooden frame.

This didn't seem to surprise Zhang Juzheng and the others, so they only showed a little surprise on their faces, but they didn't seem too excited.

Yang Cong was different, he looked at it for a while, then closed the valve, and said excitedly: "Quick, put a ten-pound iron ingot on it to try the tightness." ”

Wang Xuan gave a look, and his own disciple carefully put the iron ingot into the wooden frame.

Immediately afterwards, Yang Cong quickly opened the valve again.

The small wooden frame was still moving up and down, as if it had not been affected by anything.

Yang Cong couldn't help but say excitedly: "It's done, it's finally done!" ”

What's next?

Wang Xuan thought about doing something, but the problem couldn't be done.

He was a little frustrated and said: "Qingfeng, I tried, this thing will not move when you put a thirty pounds of iron ingots, you said that you may not be able to use it to rotate the drilling machine, but the drilling machine has to drill the barrel and the barrel of the gun, without forty or fifty pounds of strength, it can't turn at all." ”

When Yang Cong heard this, he couldn't help but pat his forehead, he really forgot this, he also drew a rough picture at the beginning, and then roughly set a size for Wang Xuan, and Wang Xuan also made it according to the size he set.

It is not difficult for the steam engine to increase the output strength, either increase the steam pressure, or increase the pressure area, these two things can be increased casually, and the output force of the steam engine will naturally be larger.

How do you say this?

Yang Cong thought for a while, and then pointed to the copper kettle and said: "Sir, it is actually very simple for you to want this thing to become stronger, you can make this copper kettle bigger, and then close the valve and burn it hard, the steam pressure inside will become larger, so that the output of the steam engine will naturally be larger." ”

Immediately afterwards, he pointed to the sample of the steam engine and said: "You can also make this steam engine bigger, its output strength roughly corresponds to its size, the larger the volume, the greater the output force." ”

Didn't Wang Xuan think of these?

He still underestimated Wang Xuan, such a simple truth, Wang Xuan naturally thought of it, the problem, just thinking about this seems to be not enough.

When Wang Xuan heard this, he couldn't help sighing: "It turns out that this can really be done, I have also thought about making this copper kettle or steam engine bigger, the problem, the bigger this thing, the more copper it consumes." ”

When Yang Cong heard this, he couldn't help but be stunned, what happened to the copper consumed?

He was stunned for a moment, and then he reacted, the copper consumed more, and the cost went up, Wang Xuan was worried about the money.

As for the question of money, he really didn't think about it, it's just a few dozen catties of copper, how much money can it cost.

He asked indifferently: "What is the approximate value of the copper consumed by this set of samples now?" ”

Wang Xuan said with some pain: "Just making such a simple sample, the copper consumed is worth dozens of taels." ”

A few dozen taels?

That's a fart!

Yang Cong waved his hand without hesitation and said: "It's okay, isn't it just a few dozen taels, and if you enlarge the copper kettle and steam engine a few times, it's only a few hundred taels at most." ”

A few hundred taels?

You're talking light!

This is just a set, now the Ministry of Engineering has built no less than hundreds of simple drilling machines, if all of them are replaced with this, it will not cost hundreds of thousands of taels!

Wang Xuan knew that Yang Cong was rich, but if there is money, there is money, and it is hundreds of thousands of taels at every turn, who can carry it?

He couldn't help but persuade: "Qingfeng, do you know, if you replace all the manual drilling machines on the Ministry of Industry with this thing, it will cost at least hundreds of thousands of taels, which is not a small amount." ”

Hundreds of thousands of taels are nothing, even if it's a few million taels!

Yang Cong still said without hesitation: "Hundreds of thousands of taels is hundreds of thousands of taels, you don't have to worry about this, the most important thing now is to make this equipment for making a steam engine, sir, how long do you estimate it will take?" ”

Wang Xuan made a rough estimate, and then said with some uncertainty: "I feel that it will take at least two or three months." ”

When Yang Cong heard this, he nodded slightly, and then arranged: "Well, two or three months will be two or three months, hurry up and make the equipment for making a steam engine, and then find a way to load this thing on the car, and we will strive to make a steam locomotive as soon as possible." ”

Steam locomotive!

When Wang Xuan heard this, he couldn't help but be stunned and said: "Qingfeng, are you really going to use this thing to push the cart, have you thought about it, this thing has to be put on the cart before you can push the cart away, you look at this room full of copper pipes, copper kettles or something, plus water and firewood, how big a car do you have to build?" ”

Yang Cong looked at the room, and then roughly estimated: "The car has to be bigger, probably to make this house so long, as for the width, it is about one zhang or so." ”

This!

Wang Xuan looked left and right, and then said in disbelief: "Build such a big car? ”

Yang Cong nodded without hesitation and said, "Yes, if you don't build such a big car, how can these things be installed?" ”

Are you mistaken, this house is not ten zhang long, build a car ten zhang long, one zhang wide, are you a car or a house?

Wang Xuan was still a little incredulous: "Qingfeng, you're not joking, to build such a big car, how big a steam engine can it push?" ”

This question really stumped Yang Cong, he thought about it, and then said embarrassedly: "Try it again when the time comes, how big it is." ”

This is so light, Wang Xuan couldn't help but say angrily: "What if you want to build a steam engine half a person high or even a person high at that time?" ”

Yang Cong nodded seriously and said, "You can build as big as you need, whether it's half a person tall or one person tall." ”

You're a little bit hot, aren't you?

Wang Xuan still said angrily: "Do you know how heavy a one-person high steam engine is, if you add the copper kettle and the water inside, I'm afraid these alone add up to thousands of catties, such a heavy car, the bluestone road is estimated to be unable to hold it, when the wheel is trapped, how can it be driven?" By the way, how can the ordinary wooden wheels press such a heavy thing, the wheels are estimated to be made of iron, and when the time comes, it will definitely sink into the road, how can this thing move? ”

fainted, it seems that the railway has to be repaired, and the wheels have to be redesigned, it seems that this matter has to be hurried up, otherwise the things promised to Jiajing will not be done, and people will definitely be unhappy.

Thinking of this, Yang Cong nodded again and again and said: "Yes, the wheels have to be replaced with iron, and iron pillars with thigh thickness should be paved on the road, this has to be accelerated, I will draw a picture for you when I go back." ”

When Wang Xuan heard this, he said a little inexplicably: "Qingfeng, what are you kidding, the iron pillars with thigh-thick thickness are paved on the road, how long are you going to pave, how many miles, dozens of miles?" You know how much it costs? Where did you get so much iron? ”

He felt that Yang Cong must be a little floating, this kid wanted to build such a shocking "steam locomotive" regardless of everything, is it necessary?

It's necessary!

No matter how much money you spend, you have to do it!

Who told him to brag nonsense in front of Jiajing.

Yang Cong said helplessly: "Sir, I know all this, no matter how much money you spend, you have to do it, because the emperor said that he wants to take a car to Chengtian Mansion." “

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