Ning Yi thought about it while helping him with a warm compress, if it was in modern times, knee replacement surgery could be performed, but here, it was obvious that it was impossible for him to make artificial joints even if he was exhausted, so this road was destined to be impassable.

Yan Yunzhou lowered his head and could see Ning Qi's frowning, and he tugged at the man's sleeve:

"Okay, if Doctor Ning is like this again, I'm going to think that I have some incurable disease."

Ning Ji looked up at him at this time:

"Say something nice, I'm going to tell you about the condition of your knee now, you are arthritis, at this time, it is impossible to cure it at this time.

I've seen in that book that surgery can replace the joint, but I can't do that joint, so this road doesn't work, which means that this joint is to accompany you into the coffin.

Do the math yourself, you are not yet 30 years old this year, if you don't know how to cherish it again, you won't have to stand up in five years, and then you will go to see what graceful Jiangnan and the desert in the north, you will stay in bed and watch the house. ”

The sound of pouring beans from the bamboo tube amused Yan Yunzhou:

"Yes, yes, I know attention, isn't this a hot compress every day? I must cherish myself, and I will accompany you to Jiangnan, Saibei, and the grassland in the future. ”

Ning Qi looked at him and slipped away, snorted coldly and didn't speak, lowered his head and helped him compress his knee:

"Tomorrow, let the embroidery girl who can do needlework help you sew a knee pad, keep a pocket for the knee pads, and put the hot sand salt in it every time you go out, so that it will continue to heat up and will not affect your activities."

"Yes, it's all up to you."

The two of them were talking, when they suddenly heard a loud "boom" outside, and the two of them looked outside at the same time, Yan Yunzhou's face changed:

"It's the north, the place of the old guy in Qingyang."

Ning Qi obviously remembered, and the dark Xuan outside immediately came in to report:

"Lord Wang, it seems to be the movement of the Qingyang Dao people."

Yan Yunzhou immediately put down his trouser leg and was about to get up:

"You take someone first, and I'll be there later."

Ning Qi also knew the priority, so he quickly helped him get up, helped him put on a thick cloak, and the two of them went directly out to the corner of the palace, the courtyard of Qingyang Daoren.

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Director Ning can also have a temperament, and if he has something to say, he will not have internal friction at all

Chapter 65: Hands, Made of Thunder

Before he arrived at the courtyard of the Qingyang Daoist, Ning Qi smelled the obvious smell of gunpowder, and he could vaguely see a thick smoke in the direction of the courtyard through the sky that had not yet completely darkened, and he couldn't help but feel a little nervous in his heart, the old Taoist priest wouldn't have been blown up, right?

That movement obviously alarmed the people of the entire county king's mansion, Li Yan and Luo Yueli all hurried over there, and when they arrived at the door, the smell was even stronger, and there was even some crackling sound inside, the guards surrounded outside, and Yan Yunzhou raised his hand:

"Open the door, what's going on inside?"

After all, what is being made here is gunpowder, Li Yan had ordered before that everyone in the palace should not approach this courtyard at will, Yan Yunzhou knew the power of the gunpowder, and said with some unease:

"Yu'an, you wait for me at the door."

Ning Ji turned his head when he heard this, suddenly thought of something, and paused:

"Can't you let me see this?"

Yan Yunzhou suddenly remembered the incident that had happened in the palace in the past, and knew that he had misunderstood, so he explained with some difficulty:

"No, I'm just afraid that there is some danger inside."

Ning Ji actually knew that Yan Yunzhou was worried about him, and patted his arm:

"Okay, don't worry, you're not as fast as I am now, go in and have a look."

The courtyard was full of smoke, and Yan Yunzhou subconsciously blocked in front of Ning Qi, choking on the smoke and coughing:

"Green sheep, green sheep? Dead or not? ”

Yan Yunzhou's voice sounded, and only then did someone in the corner raise his hand:

"I'm here, and I'm not dead yet."

When the smoke cleared, Li Yan and the others who rushed over saw the appearance of the Qingyang Taoist, the old Taoist's white beard was blackened by the smoke, and his face was even darker, which was quite funny, Yan Yunzhou frowned:

"What the hell is going on? Failed? ”

Luo Yueli dismissed the attendants beside him, and Ning Jiao saw the fragments and pottery shards around him, and the Qingyang Daoist cleaned the dust on his body, revealing a row of white teeth, and his expression was still a little excited:

"No, I didn't fail, I made a good thing."

Yan Yunzhou and the others followed him into the house, which was full of bottles and cans that they couldn't quite understand, and the Qingyang Daoist took out something from his pile of things that looked like a garbage heap with his head on the chicken coop, which was round and looked like clay pottery from the outside.

Yan Yunzhou looked at the thing in his hand, it looked like gunpowder from the earthen cannon, but the gunpowder ball was black before, but the outside of this one was pottery?

"That's what it did?"

Ning Ji looked at this thing a little like a grenade, but it looked much bigger than the kind of melon he saw in the Anti-Japanese War drama, the size of a small watermelon.

"That's it, do you want to watch it again?"

Yan Yunzhou came over with his neck:

"Don't play tricks."

"Yes, yes."

Several people's eyes looked at Qingyang Daoren:

"We're all standing in the house, and I'm going to light this thing and throw it out, and you see."

Yan Yunzhou pulled Ning Qi back, his body was always subconsciously blocking in front of him, Ning Qi didn't say anything when he felt it, he stared closely at the movements of Qingyang Daoren, and saw that he lit the clay watermelon in his hand, and then threw it into the yard, with a 'boom', the adobe bricks in the yard were cracked a few pieces, and a puff of black smoke came out.

Yan Yunzhou squinted slightly, Li Yan was young and only knew that some of his father's subordinates could make artillery in the past, and they existed in Suizhou City, but it was the first time he really saw an explosion, and this Qingyang Daoist really succeeded?

Yan Yunzhou turned around:

"Doesn't this gun of yours need to be fired from the barrel?"

In the past, artillery had to be fired with a large barrel, don't you use this thing?

Qingyang Daoren's face was proud:

"In the past, the cannon needed a barrel, but the barrel was extremely heavy and not easy to move, this is an improved version of mine, you can carry it with you, light it and throw it out and blow it up."

Ning Ji looked at the several clay lumps on the side, isn't this a crude version of a grenade? I didn't expect this Qingyang Daoist to really be able to drum it up.

Yan Yunzhou sat down and looked at the things in his hand:

"How does this thing compare to the artillery of the past?"

Qingyang Daoist buttoned his nostrils:

"That's naturally inferior to artillery, artillery is bigger than this, but these two are one thing, this small projectile can be made, and the big one is the same."

Li Yan also squatted down, and his eyes couldn't hide his curiosity:

"How did this thing blow up?"

Ning Zhi knew that the principle of the explosion of this "bomb" was actually to ignite the gunpowder inside in a sealed environment, and a large amount of gas and heat was generated, and the explosion occurred under high-speed expansion.

But he knows that Qingyang Taoist people don't know, after all, the old Taoist priest has never studied chemistry, although he knows research, but he lacks basic theories, if he really asks him to explain, he can't explain what kind of gas is produced by the bomb reaction, how to release heat, he knows that this can be fried...

The old Taoist priest was hesitant, and Yan Yunzhou directly asked the most important question:

"Is there any risk in storing this thing?"

After all, if this thing is easy to explode when stored, then in the end, it may not be who blew up, then the old way said:

"This thing can't be placed in a place that is too hot, it can't encounter an open flame, and it can't be too wet, otherwise this lead will not ignite easily if it gets wet."

This northern border is dry and cold, hearing him say this, Yan Yunzhou also put down some thoughts, Ning Qi looked at the side, and saw that there were some semi-finished products on the old Taoist's table, which contained the pale yellow sulfur he extracted from sulfur ore, a pile of charcoal, and saltpeter, and he twisted a little saltpeter in his hand:

"No wonder the prince misunderstood me so much before."

Yan Yunzhou only felt a chill on his back for a while, and then he spoke:

"It's me wrong, I'm lonely."

The corners of Ning Yao's mouth twitched slightly, and it was as if the man himself admitted that he was uneducated.

Yan Yunzhou went out to look at the fragments in the yard, although he didn't know how to make gunpowder, but he had seen this thing explode many times, and he had also seen the injuries of people injured under firearms, he suddenly opened the entrance of the building:

"After this explosion, the pottery outside was shattered, can you add some sand, iron and other things to the inside of this pottery, so that those things can go out with the explosion slag?"

Hearing what he said, Ning Ji couldn't help but look up at the person in the courtyard, this person was really powerful, the grenade was using a high-heat and high-pressure explosion to launch the steel pillar, and he could figure this out from the explosion of the talent.

Qingyang Daoren touched his beard:

"It stands to reason that there should be no problem, but this thing is blown up in all directions, and if one is not careful, it is easy to accidentally injure one's own people."

After all, he threw this thing with human hands, and no matter how large the human strength is, the distance thrown is limited, and it is very likely that the iron beads shot out of it will hurt.

Yan Yunzhou has been fighting all year round, and although he is not proficient in how to use firearms, he knows better than anyone how to use them:

"You just have to test it, you don't have to worry about anything else."

In any case, before Yan Yunzhou went to Baicheng, it was good news that the Qingyang Dao people could make this thing, and even Luo Yueli's heart was settled, although the hundreds of thousands of troops in the north were heroic, but the army of the imperial court should not be underestimated, not to mention that it was impossible for the north to be unattended, if they had the help of gunpowder, their chances of victory would be a few points more.

And in Li Yan's eyes, the account is different, he is thinking that if there is this gunpowder, then one person may be able to catch up with the power of the previous four or five people, then the time of the battle can be greatly reduced, and his food pressure will not be so great.

After returning to the room, even Ning Qi saw Yan Yunzhou's obvious good mood, and he smiled and said:

"With this thing, you can always have a better chance and certainty of declaring war on the imperial court, right?"

Yan Yunzhou nodded:

"Yes, it's hard to say how powerful that thing can be on the battlefield, but it's always better than nothing."

He sat down at the table, took out the clean rice paper, and turned his head to speak again:

"Yu'an help me sharpen the ink."

"What are you going to do?"

"Draw something."

This time Ning Qi finally mastered the proportion of water, he tilted his head while grinding ink and watched Yan Yunzhou's movements, the brush was unusually obedient in that person's hand, it seemed to be a bow and a little bit like a bow, Yan Yunzhou drew several pictures in a row, Ning Qi vaguely saw that these things may be used with the "□□".

"It's a bit like a trebuchet, isn't it?"

Yan Yunzhou smiled: