Of course, he is not thinking about how to change this era now, but only wants to use his advanced knowledge in the 21st century to improve the combat effectiveness of his subordinates - in addition to military training in the 21st century, what is more important is to have advanced weapons and equipment.

It's just that before the crossing, he was just a liberal arts student, not a science student, not to mention that even if he was a science student, he might not be able to know the principle of creating a 21st century army. Therefore, he had no intention of making any aircraft, artillery, tanks, missiles, etc., not to mention that the raw materials for these weapons were not available at all in this era, and at most he could only make some firearms products such as mines and explosives.

Landmines and explosives are considered a plan, but after all, it is not a breakthrough in the heavy dà, the Song Dynasty already had the use of firearms, and the manufacture of these things alone cannot fully reflect the essence of the 21st century traverser.

So in his spare time, Zhou Bo has been pondering what things he should invent? These things should not be too complicated, nor too impractical.

It wasn't until this evening, when he stood outside the house and saw the smoke rising from the hill, that a flash of inspiration suddenly flashed in his mind, and he finally had a wonderful idea.

That's right, water vapor!

He was immediately overjoyed, if other inventions were very complicated, but the principle of the steam engine was the simplest, it only needed to be combined with piston machinery and lever machinery to assemble a steam engine. Using the power of the steam engine, not only can it save great human resources, but also develop a series of peripheral machines. Even if you can't make steam engine ships and steam trains, you can at least make some industrial machines and small power cars.

Thinking of this, he planned to act immediately.

That night, Zhou Bo spent the whole night studying the drawings of the steam engine, although the principle of the steam engine had been invented as early as the first century AD, but it was not taken seriously at that time, and the steam engine system was only used to make a toy for the air ball. It was not until the 17th and 18th centuries that the Industrial Revolution occurred in England, and the finished steam engine was invented by Watt. And it has gradually been used in the use of power industrial machines.

It was only the 11th century, and Zhou Bo, a historical traveler, would build the steam engine six centuries before the British. And it will also use this steam engine to create a series of weapons of war. Reversing the course of the entire history.

However, when he started drawing drawings, he ran into a lot of trouble. Because he didn't have such a fine tool, the drawing could only draw a rough idea, and there was a lack of practical experimentation. I don't know if it will succeed or not. He had been in the study all afternoon, and when it was time to eat in the evening, Begonia and Musk Yue came to call several times, but they still ignored it.

The floor was littered with discarded scrap paper with incorrectly drawn drawings, and it looked like a mess. Moreover, paper was also a very expensive item in the Song Dynasty, and in this afternoon alone, dozens of taels of silver paper were almost thrown away.

At nightfall, Zhou Bo sighed, and he found that no matter how he drew on paper, it was just a matter of talking on paper. Some things or some links have to be put in their shoes to be made. Therefore, he decided to only make the pattern of the steam engine first, and from tomorrow onwards, in the open space behind the mountain nest, let Wang Shanwu, Chen Chuan and others gather some craftsmen to practice.

Early the next morning, Zhou Bo got up and went to find Chen Chuan, and asked Chen Chuan to invite all the craftsmen who had built traps in the past to the back of the mountain nest. The drawings are then handed over to these craftsmen and the craftsmen begin to build according to the instructions above. Of course, because there is a difference between a steam engine and a trap this time, it is natural to invite some new craftsmen to join the team.

These craftsmen began to build the steam engine according to the drawings and Zhou Bo's personal instructions. Zhou Bo was also involved, explaining the drawings while observing the entire manufacturing process, trying to find inspiration in the process. Crafting a weapon for use on the battlefield based on a pure steam engine.

After two days of uninterrupted work, the steam engine was completed, but Zhou Bo still didn't know what to do with it. His first impression was that the steam engine could be used to draw water, to replace a waterwheel, and to replace a blower.

Chen Chuan and Li Xu have been involved all along. When they saw this thing, they all looked at each other, not knowing what Zhou Bo was doing with inventing this thing.

Li Xuzhong stepped forward and touched the steam engine, because the steam engine was running, and the boiling water almost burned his hands. He hurriedly shrank back and asked Zhou Bo, "Boss Zhou, what is this...... What is it? Is it used to boil water? But it doesn't take so much effort. ”

Zhou Bo couldn't cry or laugh, he didn't say anything immediately, just thought about transforming this steam engine into a locomotive first. So he instructed the craftsmen to build four wheels, use piston levers to make machine qì arms attached to the two wheels behind, and then assemble them with the steam engine.

By the end of the night, it was finally finished. Zhou Bo let go of the baffle of the steam locomotive, and the car slowly began to run in the yard. However, because the car is so big, and it has to constantly burn coal to boil hot water, and more importantly, it is not fast at all. Although Chen Chuan, Li Xuzhong and a group of craftsmen were interested at first, they gradually became uninteresting.

It took more than two days of hard work and a lot of work to make such a thing, what can I do? I don't feel at ease when I use it as a toy for my child, because I am afraid that I will be scalded by boiling water.

Chen Chuan said softly: "My lord, although this thing can run, but ............ But it's too slow, not as fast as I am. ”

Although Zhou Bo also felt the same, of course he knew what the reason was, because the first steam engine in human history was not very sealed and the power was extremely insufficient. But it's already very good to be able to make this for the first time, and he didn't expect to make a train out for the first time, and then rumble to make the whole Lin'an people panic.

He replied indifferently and said, "This is just a real product, used to see how it can be converted into something useful, you see, wasn't it only possible to boil hot water before? ”

As soon as his words fell, he heard a click, and the steam locomotive crashed into a large tree, and immediately stopped leaving. However, because the steam locomotive was walking very slowly, it did not cause any major damage when it hit a tree.

Chen Chuan swallowed a mouthful of saliva. He said, "It hit." ”

Zhou Bo nodded and said innocently, "I saw it." Alas!"

Chen Chuan continued: "Boss Zhou, look, this guy won't turn on his own. Silly, it's a comparison with what I have. ”

Zhou Bo was embarrassed and said, "Do you think it has an intelligent system?"

Chen Chuan blinked his eyes and glanced at Zhou Bo, and asked puzzledly, "Boss Zhou, this." What is an intelligent system?"

Zhou Bo sighed and said, "Forget it, you don't understand it." ”

At this time, Li Xuzhong stepped forward and asked Zhou Bo: "Boss Zhou, what are you going to do with this thing? You have also studied it for so many days, and it doesn't seem to have much effect!"

Zhou Bo just smiled slightly, and then said: "Don't look at it now, after all, I just invented the preliminary form of this thing, and I will slowly improve it in the future." It's going to be a sensation. By the way, I'll let Li Xiucai help me in the future, he is also a scholar, maybe he can help me come up with some ideas. ”

Li Xuzhong didn't say anything, he glanced back at Chen Chuan, Chen Chuan and those craftsmen were chatting, and it seemed that they had planned to take Zhou Bo's invention seriously.

Zhou Bo naturally saw it, but he could only sigh that these rural people had turned a deaf ear to the greatest invention in human history. It's so sad to make yourself. He said to Li Xuzhong again: "By the way, you first let the craftsman make a steam engine, and then I will improve it, which can replace the donkey that pulls the stone mill." ”

Li Xuzhong said in surprise: "This thing can replace the donkey grinding?"

Zhou Bo smiled. "There are so many things it can replace," he said. ”

Li Xuzhong originally wanted to have something more, but he felt that he should believe Zhou Bo, so he didn't ask more, and went to Chen Chuan and told them.

So, Li Xuzhong found Chen Chuan and asked Chen Chuan and these craftsmen to build another one according to the prototype of the steam engine. Then Zhou Bo himself came to install some things, and then took them instead of donkeys to work. After listening to Li Xuzhong's words, Chen Chuan and these craftsmen all showed the same expressions as Li Xuzhong after hearing Zhou Bo's words at that time, they didn't believe that this thing alone could replace a donkey to pull the grind, you must know how heavy the grinding stone is, and these wooden things can be pulled?

But since Zhou Bo gave the order, Chen Chuan and these craftsmen had no choice but to agree.

That night, because of the experience of previous workmanship and the ready-made surplus materials, Chen Chuan soon made a second steam engine.

Zhou Bo didn't have anything to do at night, so he went to the back of the mountain, took Chen Chuan, Li Xu and others with them, and let them watch how he converted the steam engine into a grinding machine.

After some debugging and correction, it took half an hour for Zhou Bo to finally complete the transformation. He wiped the sweat from his head, and then asked Chen Chuan and the other craftsmen on the side: "How is it, have you all seen the process of my transformation just now? ”

Chen Chuan seemed a little puzzled, although he was a natural blacksmith and was curious about some new crafts, so when Zhou Bo did it himself just now, he was carefully and seriously copying. Now I do remember almost every step, every detail, every principle, but I have never been able to figure out how this steam engine could push such a heavy grinding stone.

He scratched his head and asked Zhou Bo, "Boss Zhou, I wrote it down carefully, but I still don't believe that this thing is of any use." ”

Zhou Bo just smiled, and then said, "Isn't it okay to test it?"

A craftsman was very familiar with it, and immediately replied: "At least, there are more than 200 catties, otherwise some millet will be difficult to crush." If it is a grinding stone in a large workshop, it is not only more than 200 catties, but it may weigh 300 or 500 catties!!"

Several of the other craftsmen nodded in agreement.

Zhou Bo knew that there was no grinding stone in this place now, and there was only one small workshop in the entire mountain nest with a grinding stone, so he couldn't carry the steam engine over to test it now. Immediately, he beckoned to everyone and said, "That's it, Li Xuzhong, Chen Chuan, and you, the three of you are standing here, standing tighter, and sticking to each other." And then I'll put the arm of this steam engine against you, and when it's running, you'll feel for yourself how much strength this guy has, how about it?"

Chen Chuan cautiously asked, "Boss Zhou, will it burn us?" He looked at the small furnace of the steam engine constantly boiling water, and a stream of hot water vapor was tumbling in the container, and he felt that it would be very hot just by looking at it with his eyes.

Zhou Bo glanced at him and said, "You are afraid of a bird, we are not afraid when we kill, but now you are afraid of being burned, I really don't know how to say you." This wooden arm pole will not transfer heat, don't worry, if it is hot, I will compensate you. ”

Chen Chuan hurriedly laughed twice after listening to Zhou Bo, in order to show that he was not greedy for life and afraid of death, so he immediately stood up first, and said with a straight chest: "Boss, I just ask casually, I'm not afraid of being hot, even if I get into the oil pot, I will never blink." ”

Zhou Bo smiled and said, "Come on, you." ”

Then, he asked Li Xuzhong and another craftsman to stand over, and then personally adjusted the arm of the steam engine, so that the arm was on Chen Chuan's stomach.

After waiting for everything to be ready, he said: "You all pay attention, don't fight this thing, anyway, just let you know its strength, if you fight with your life, it won't be good to lose both." Do you understand?"

Chen Chuan and the others nodded one after another, indicating that they understood.

Zhou Bo sank into the air, and then pulled the operator of the gate to make the steam engine move. I saw a powerful steam power churning in the vessel, slowly pushing the piston upwards. The piston is attached to the boom rod and drives the boom to start moving slowly. At the beginning, because the steam power was not too strong, it was a process of progressing from weak to strong, so Chen Chuan and the others didn't have much feeling.

Chen Chuan only felt that the arm was pushing hard against his stomach, but this kind of strength was nothing to him. Immediately, he said to Zhou Bo with a smile: "Boss Zhou, what can you do with this little strength?"

Zhou Bo glanced at Chen Chuan unhurriedly, and said slowly: "Don't worry, you have to let it start." You'll know it's awesome later. ”

Gradually, more and more gas was in the vessel of the steam engine, and the thrust of the piston was also increasing. At this time, Chen Chuan finally felt a little pain in his stomach, and the strength of his arm gradually increased, pushing himself to lean on Li Xuzhong's body.

Chen Chuan still smiled cheekily, and said hehehe: "With this little strength, I still have no problem." You must know that even I can't push it down, how can I pull those hundreds of pounds of grinding stones?" )