After I was reborn, I became a plug-in for the country

Dai Zi is impatient, especially after the tin ore arrives, he looks forward to Yinfeng's arrival almost every day.Many previous experiments failed, and the production progress of the firecracker was delayed for too long, so he was really anxious.

So with something in hand, he started to write the notebook again, and asked Kangxi in a different way when he sent the prince to Jingshan.

Kangxi still didn't make up his mind.He has received the secret letter from Suo'etu, knowing that Junggar has been dragged even more anxiously than before, and the morale of the army has also been greatly hit. It seems that he is ready to go head-to-head with the Qing army.

When Lao Maozi was there, Junggar had only encountered the Qing army once, and it took advantage of it.But now that the old man is gone, if they fight head-to-head, the chances of winning are not so good.

After Kangxi had a good idea of ​​the war situation, he was even more reluctant to let his son risk his life.He simply used the excuse that the prince was ill, and dragged on for a few more days.

It has been half a month since Yinreng was punished for copying, so he didn't know that Dai Zi was ready for everything, and he was the only one missing.

He's been very relaxed lately.

Because of an accident, the fact that he was fined to copy before was revealed quietly.He wanted to be lazy, but he was really not used to the sudden leisure, and he felt that since he started to write, he still had to continue to write everything.

Not to mention anything else, the knowledge of geometry and mathematics is of great help to fortification construction.

So he began to follow the systematic curriculum and write down what he had learned.Several masters were probably interviewed by Kangxi later, or they figured it out later, in short, apart from coming to see Yinfeng, they didn't talk to him about the firecracker.

The Ministry of Internal Affairs obtained Yinfeng's drawings, and the action was much faster.It was only three days after the glass jar was sent back, they made a new one and sent it back.Yinfeng looked at the size, and found that the newly made tube was about the same thickness as an adult man's forearm.Compared with his drawings, the effect is not bad.

But he couldn't seal the tube here, so he simply took Huaiqing and filled it with cinnabar, and the two went to the Ministry of Internal Affairs again.

Ling Pu had his last warning, but he didn't put up his airs to shout at the craftsman again.

Yinfeng asked the craftsman to melt a small bag of cinnabar according to his method, and extracted several large bowls of mercury.After the mercury has been tempered, the craftsmen carefully pour it into the glass tube, and finally seal it up.

In fact, to make a thermometer, apart from glass and mercury, the most important thing is the pressure inside after sealing.

Yinfeng was quite worried before sealing it. He had seen the demonstration of the system, and the machine used to solve the pressure in later generations could not be made at all now.Unexpectedly, as soon as he described the problem, the craftsmen solved it for him.

The method is the native method they used before. This method is a bit clumsy, but it is more useful.

Yinfeng was still worried when he watched from the sidelines, but when the craftsmen finally brought him the finished thermometers, he remembered the saying that the system often said for no reason: "The wisdom of the working people is infinite."

"Sure enough." Yinfeng said with emotion.Then he ordered Huaiqing, "Reward!"

Huaiqing was busy planning the rewards, and the craftsmen were busy thanking him, "Thank you, Prince, for the reward!"

With the thermometer, Yinfeng asked Ling Pu to prepare a large basin of hot water. Now he wants to see if the thermometer can achieve the effect of temperature measurement.But before the hot water was served, he saw that the mercury in the thermometer was slowly rising.

Yinfeng was a little confused when he first saw it, but after looking at the surrounding environment, he understood the reason.In this house where craftsmen make things, the stove is burning all year round, so the temperature is naturally much higher than outside.

Well, there is no need to try it again, it is obviously working normally.

Yinreng asked Huaiqing to carry his things back to Yuqing Palace.He still had to slowly record the temperature by himself based on the volume capacity.

This is also a very labor-intensive job, and Yinfeng didn't even bother to use it for dinner.By the time he's all done, he'll basically be going to bed.

This was one of the few days that not only exhausted his mind but also his physical strength. Yinfeng lay on the bed so sleepy that he couldn't even open his eyes, but he didn't forget to say to himself before going to sleep, "Dai Zi didn't tell Gu either, How did he prepare..."

The fact is that Dai Zi was so anxious that he couldn't help but beg him repeatedly, Kangxi finally made up his mind and asked his son to help him check the progress.After all, this matter cannot be done without his son, and the emperor also has the responsibility of the emperor.For the sake of the world, he decided to selflessly contribute the wisdom of his son...

Yinfeng didn't expect that he would get such good news just after waking up.He hurriedly ordered Huaiqing to pack his things for him.

Huaiqing asked other servants to run errands to tidy up Yinreng's clothes, while he came over to ask Yinreng himself, "Prince, do you have something special to take with you?"

Yinfeng thought for a while, he must bring all his experimental equipment, a thermometer, and the things he hadn't finished writing.But the glassware was too brittle, and he worried whether he could stand it all the way.

Huaiqing helped out with an idea: "The left side is just glass, the servant told them to wrap it in a thick quilt, and then stack a few more quilts on the carriage."

Yinfeng thought it was good, so he asked him to do it like this.

As a result, on the day of his trip, there was a carload of luggage that attracted special attention.Without him, the car is full of quilts.

The corners of Yinreng's mouth twitched as he watched, but he didn't say anything in the end.

But the eldest brother who came to see him off was not so kind. He looked at the big cart of quilts, stared at Yinfeng with a half-smile and said: "It seems that the elder brother doesn't care enough about the younger brother, I don't know The prince's body is so weak, is this quilt enough?"

"Thank you brother for your concern." Yinfeng said expressionlessly.

The other brothers are not as bad-mouthed as the big brother, but they don't know what Yinfeng is going to do.The third brother thought that Yinfeng was being punished, and when he came to talk to him, he always had a tone of "Brother Prince, you must reform after you go."

Yinfeng pulled the left and right sides of his face with one hand, then pulled them horizontally with a grinning grin, in exchange for the third elder brother begging for mercy and howling.Brother Six and Brother Seven watched from the side, covering their mouths and giggling.

Only the eighth elder brother stared at Yinfeng and asked: "Is the prince's brother back?"

Yinfeng smiled like a human trafficker who kidnapped and sold children, "Come back, my brother will bring you some fun."

fun...bullets...

When the other brothers heard what he said, they scrambled to surround him, and each of them told the prince brother not to forget them.

Eldest brother was on the sidelines, his heart was sour, and when Yinreng had coaxed his younger brother, he punched Yinreng's right shoulder, "Don't forget the firecracker that you promised."

Yin Reng rubbed his shoulders, and punched back unceremoniously. "I've never seen a big brother like this, begging for help like this."

The elder brother smiled knowingly, "We brothers, what else should we divide between you and me?"

After seeing off everything, Yinfeng went to ask Khan Ama for an order to set off.

Kangxi's face was solemn, and he patted his right shoulder. After all, there were not many instructions, and he only indicated with his eyes that he could go.

There was a trace of reluctance in Yinrong's heart, and at the same time he felt strange.He hadn't noticed it just now, but now he saw Khan Ama's face, he suddenly had a strange feeling that he was about to die.In fact, he really wanted to tell Khan Ama that there was no need for it, and the minister would come back as soon as he went.

But time waits for no one.And it's impossible for him to really go there.

After bowing and bowing, Yinreng took several carts of luggage, together with Huaiqing and several other serving servants, and was escorted by the Imperial Forest Army all the way from the capital to Jingshan.

Although it was only half a day's journey, once the carriage left the capital, Yinreng still felt a lot more relaxed.Probably because of the lack of the mental pressure of the Forbidden City, even with the wheels rolling, he felt the sound was crisp.

When he arrived at Jingshan, Dai Zi came to pick him up in person.

It was already winter at this time, and the temperature in Jingshan was much lower than that in the capital.Yinfeng was also a little lucky, maybe the quilts that Huaiqing wore were really brought correctly.

After Dai Zi saluted, the two didn't say much politely, Yinfeng asked directly: "How's the progress?"

Dai Zi was also very straightforward, first took him to see the blast furnace, and then talked about the things he was preparing now, "The wooden part of the firecracker has been polished by craftsmen, and the tin mine has also ordered people to refine it. , just wait for the blast furnace to produce good steel, then you can continue to make the bullet molds you mentioned."

Yinfeng asked someone to take out the prepared thermometer and gave it to Dai Zi, "Hang this outside the blast furnace. If the mercury inside reaches the top, the temperature is fine."

After Dai Zi took it, he looked left and right, "The last time His Highness said that the temperature problem can be solved, is it because of this thing?"

Yinfeng roughly explained the principle to him, Dai Zi silently digested it, and said, "It's fine if there is glass and cinnabar?"

"Yes." Yinfeng said succinctly, "With these two things, you can do it."

Dai Zi is writing it down, and plans to write it down on paper later.

He gave things to his men to find a way to hang them outside the blast furnace.Then he led Yinfeng to the tent where he lived, "What kind of bullet mold does His Highness talk about? I tried to make some myself, but I couldn't achieve the desired effect."

This is what worries him the most now.Bullets cannot be made without abrasive tools, even if the firecracker is made, it will not be used.

Yinfeng followed him all the way, Xindao is indeed the brain of a science person, he is straightforward and does not turn around, and his emotional intelligence is at risk.He has been here for a long time, Dai Zi didn't even think about arranging a place for him first.

Huaiqing followed behind, hesitating to speak, but was stared back by Yinreng.

Dai Zi entered the tent and went to look through the drawings first.

Yinfeng stopped and looked at the tent he lived in, and it was not much different from the one he saw that day.Just set up a desk and a bed, and there are many books piled up on the bed.

Dai Zi kept talking while flipping through things, "Your Highness told me to make gunpowder into pellets, and I have asked someone to make some, but I don't know if the size is right."

That day he was in a hurry to enter the palace, and after hearing what Yinrong said that there were bullets made of gunpowder in addition to the bullets in the firecracker, he rushed back to Jingshan overnight, drew the blueprints himself, and made a kind of ball the size of a fingernail.

"That's not busy." Yinfeng was very conscious of the protagonist, found a clean chair and sat down and said calmly: "You tell Gu first, what's going on here now."

He still doesn't know how many craftsmen there are in Jingshan, and whether there is anything missing.If there is anything missing, he can quickly send an application to Khan Ama to have it delivered.

Dai Zi finally found what he was looking for, and looked back, the prince was sitting on a low stool waiting for him to speak.His face was somewhat embarrassed, and only now did he realize that he seemed to be very unruly.He didn't even arrange for the master to rest first.

"Your Highness is also tired today, why don't I ask someone to clean up your place first."

"What are you doing to clean up the house?" Yinfeng was quite puzzled, "Didn't you just say that you asked someone to do it?"

How can I digress while talking.

He followed Dai Zi's line of sight and looked down at himself, his clothes didn't touch anything, then he raised his eyes and asked, "Why are you just looking at Gu Zuo, saying that the current construction progress is not lacking anything."

Dai Zi was right when he thought about it, fortifications and firecrackers were more important.He simply squatted down, took the drawing and approached Yinrong, and talked about the projectile he did.

Huaiqing watched from the side, complaining in his heart, could he find a better place for their master to sit?