After several days of continuous research, Jiang Xingchen finally studied the trigger device and delay device with the cooperation of many craftsmen, and couldn't help but laugh happily. He lived in a peaceful society in his last life and was the least willing to see the killing. Even in several wars, he had no choice but to make a move. But this time, the Xuanyuan Tianzong's practice of massacring tourists really angered him.

Old man, Mei'er heard the laughter and no longer cared about talking, so she quickly ran into the yard.

"Boy, is it done? How powerful is this grenade?" As soon as he entered the yard, the old man couldn't wait to ask loudly.

Jiang Xingchen smiled and waved his hand, saying, "It's still early, but the most important part has been studied, and it has to be tested and mass production will be required later..."

"Well, then you're so excited, it's boring!" The old man suddenly lost his interest when he heard that he had not succeeded yet.

"If you are uneducated, you can't communicate normally with someone like you... No wonder, I don't understand your world either!" Jiang Xingchen smiled and glanced at the old man with contempt.

"My second!" The old man was held back in one breath and stood there. You don't understand what my world is. I'm not educated, so you are not educated, your whole family is not educated...

Jiang Xingchen ignored him and turned to the craftsmen and said, "Thank you for your hard work these days, rest for a long time!"

After saying this, he felt his eyelids like he was filled with lead, sinking continuously, and his body became a little weak. After studying for three and a half days, he slept for less than six months (months). Compared to those craftsmen, he was much tired and could no longer resist it now.

"Sir, no need. We are not tired. Let's get out the grenades as soon as possible!" A craftsman replied, and the others shook their heads, indicating that they were not tired.

When they were called up at first, they didn't know what to do. When they saw Jiang Xingchen treating Yuan stones as experimental subjects and damaged them one by one, they were shocked. This is a lot of money, but it was ruined like this. We can't make a Yuan stone in a year.

But after the formal research, they immediately went in. Especially after hearing the damage that Yuanshi could cause in the collapse of confined space, they became even more excited. They were all from the Yueying Kingdom, and of course they did not want their country to fall. Although this method of Jiang Xingchen's research was expensive, it is undeniable that it was definitely a killer weapon.

Of course, the power of their opponents of grenades is limited to Jiang Xingchen's description, so they are eager to study it to see if it is really that powerful.

"Okay!" Jiang Xingchen waved his hand and said, "Human energy is limited. You are not tired, I am still tired! Take a long rest and come here again in the evening!"

Seeing that Jiang Xingchen insisted, everyone had no choice but to go back temporarily.

As soon as the craftsmen left, people came again. Emperor Yueying came in person and asked if Jiang Xingchen was sure. Xuanyuan Tianzong was advancing all the way at a very fast speed, less than four hundred miles away from the capital.

"I can't say whether you are sure or not. You can only look at the effect when you get it!" Jiang Xingchen did not give a definite answer. He didn't want Yueying's people to place all their hopes on him. What if something happens to an accident.

When Emperor Yueying heard this, he understood what Jiang Xingchen meant and knew that he was too anxious! But in the current situation, how could he not be anxious?

Although he did not get a definite answer, Jiang Xingchen's research has made some breakthroughs. Finally, he felt a little relieved.

The emperor did not stay for a long time. After learning the answer, he took the head of the Hua family away. The enemy approached and there were still a lot of things waiting for him to solve.

When Jiang Xingchen saw the emperor off, he breathed a sigh of relief. He was so exhausted these days. This thing is much more complicated than he imagined. Although the function of the precision curved array is obvious, the design of the device still requires precise conception. Although it is all grenades, the use of Yuanshi and the use of explosives are completely different. Besides, he had never specifically studied grenades in his previous life. It can be said that this research was to fumble forward towards the predetermined goal. If it weren't for the help of some craftsmen, he wouldn't have done it.

He said hello to the old man and Mei'er, Jiang Xingchen was about to go back to his room to sleep. But as soon as he entered the room, Pink caught up with him, pointing at the crab and chirping, and his intention to raise an army to question the crime was obvious.

"Pink, stop making trouble. Brother is very tired and needs rest!" Mei'er shouted quickly. Jiang Xingchen's fatigue could be seen, which made her feel very distressed.

The old man's eyes were shiny, staring at pink, and his face showed great interest.

"This trusted bird is not simple!" He was wondering just now. A level 20 monster of a crab sticking out his tongue and pulling his eyelids at a trusted bird. It was so weird. He didn't see the scene when the crab was hiding from the pink scene before.

But now, I found that this bird of faith knows how to communicate with people, and even if it points to the crab with one wing, I immediately realized that it is not simple.

"Okay OK OK, stop screaming. I'm very tired and want to sleep. Don't mess with me?" Jiang Xingchen said helplessly.

"Twitter!" Pink was of course unhappy, and pointed his wings at the crab and continued to accuse him: Why can he eat and drink, and there is no share of good things. Do you think it is easy for me to protect Mei'er girl?

"Ah~ I'm really convinced!" Jiang Xingchen's head was buzzing by the pink quarrel. He took out a piece of Ganoderma lucidum and broke it a bit, and threw it out.

"Twitter!" The pink bird's eyes shone, and he didn't care about what to say to Jiang Xingchen, and rushed out. The speed was fast, and there was no shadow in the air.

"Aowu~" Crab was anxious as soon as she saw it. The piece of Ganoderma lucidum that the boss broke off was more than twice the size of the one given to her. This is OK, it's unfair. Don't be so tired that you're blurred?

The anxious crab jumped to Jiang Xingchen and let out a low roar to remind Jiang Xingchen.

But what it welcomed was Jiang Xingchen's feet, which were immediately fell on his head.

"Crab, you are so weak, so he let me rest!" Jiang Xingchen stepped on the crab's head several times, turned around and rushed directly to the bed.

"Damn, why~" Crab was crying without tears, and sat in aggrievedly blinking her eyes. Her tears were about to fall. How could he bully the wolf?

Mei'er hurried forward and patted the crab on the neck comfortably: "I told you that my brother is very tired, don't disturb him... Okay, don't cry anymore, I'll take you to eat meat!"

"Eat meat, don't cry..." The crab's mouth touched the corners of his mouth twice, and he yelled in his heart: "I'm no longer a wolf cub~"

After Mei'er finished speaking, she was about to lead the crab out. The old man walked over at the right time and asked in a low voice: "Mei'er, is the bird that just now... a monster?"

"No, it's just an ordinary bird of faith, but it's smarter than an ordinary bird of faith!" Mei'er smiled and denied that this was her secret, and her brother didn't let her say it out.

"Scammer~" Crab yelled in her heart: "It's not a monster, it's not a low-level monster, okay..."

Seeing Mei'er like this, the old man stopped asking, but he knew very well that the bird named Pink was definitely a monster, and he was far inferior to the speed of chasing Ganoderma lucidum just now.

"When did this kid get such a monster? At least level 20, I'm talking about how the crab is like that..."

Just as the old man thought of this, a sudden flash of Jiang Xingchen's birthday appeared in his mind. After seven people were killed by a blow, there was a blood hole on his forehead. He suddenly shuddered: "Is it the bird that was fucked by this faithful bird?"

The old man left the room and did not ask Mei'er. In fact, he could guess it almost without asking.

"It's better to leave a secret for the little girl. Who will be blind in the future... Hehe!" When the old man thought of someone being humble in the future, he couldn't help but smile...

That night, as soon as the sky got dark, the impatient craftsmen ran over, and Jiang Xingchen had to force himself to get up.

At the beginning, Jiang Xingchen used a hardwood shell. After everything was assembled, he pulled out the iron bolt and threw it out, but in the end there was no sound.

Everyone immediately checked the problem and found that the internal force was uneven, the Yuan stone was broken into several large pieces, and the release of the Yuan energy was not fierce enough.

Re-adjustment, experiment, still no sound... Adjust again, experiment...

After several consecutive times, Jiang Xingchen and the craftsmen were silent. Only then did they realize that the installation did not mean success, and there were still many places to adjust later.

The old man and Mei'er kept watching, and Mei'er was taking care of Jiang Xingchen when eating and drinking. Otherwise, he would have really been to the point of forgetting to eat and sleep.

It was not until noon the next day that the wooden grenade finally exploded. A thunderous sound made the crab shudder.

However, there was no cheer. The craftsmen and the old man were shocked by the power of the grenade explosion. A large pit was blown out of the blue brick floor, and the wood fragments with laughter with their thumbs flew out more than a hundred meters. The walls ten meters away from the explosion were smashed into pits.

"Good guy, it's really powerful. With such power, the flesh and blood body can really withstand it, and the protective energy can be broken... But can it break the heavy armor?" The old man murmured after being shocked.

"Why can't you break it..." Jiang Xingchen smiled lowly and said, "The impact alone can shock them to vomit blood, and they can't move even if they break the horse's legs... And don't forget that this is made of wood, if it is replaced with iron..."

As he said that, Jiang Xingchen walked to the explosion site, observed for a moment, and whispered: "The killing radius should be ten meters. This is hardwood, and it should be more powerful if it is iron! That is to say, the energy release of a piece of Yuan stone is greater than the energy released by the TNT explosive in the grenade in the previous life, and it is more than enough to deal with heavy cavalry!"

Then Jiang Xingchen immediately started to use clay to make molds and began to make iron shells...
Chapter completed!