Li Chengqian was not going to take out gunpowder and use it, this thing is a double-edged sword, hurting both others and himself. Maybe for the time being, it may be able to run rampant in the world, but who can guarantee that this thing will not fall into the hands of some careerists?

Not in the era of Lao Li, and maybe not in the era of Li Chengqian in the future, but what about the next generation? What about the next generation? No technology can never be revealed, and sooner or later the secret of gunpowder will be known, so will Datang still stand alone in the world?

Therefore, Li Chengqian felt that before he figured out this matter, it was good to know the secret of gunpowder, anyway, Datang did not have gunpowder before, and it was not still as powerful.

However, the current situation is stronger than people, except for gunpowder, Li Chengqian can't think of anything that can make earth-shattering movements.

"Da Lang, the things have been bought!" When night fell, Wu Chen came to the front hall and said to the drowsy Li Chengqian.

"Bought it back? What the? Blinking his eyes and thinking about the good intentions, Li Chengqian came back to his senses for a while: "Oh, oh, get it to the courtyard." ”

In the surprised eyes of everyone, Li Chengqian found a small hammer among the tools Wang Chenghu found, and held it in his hand: "It all depends on what I do, one person is the right one, and when the things arrive, they are all smashed into powder." ”

"Da Lang, when is this, won't we make a fuss?" Xi Er was stunned and rarely spoke well, but in Li Chengqian's opinion, no matter how he listened to it, it was not a good word.

So he pointed to the stone stool that was put aside, and said to Lao Xi hatefully: "You use that big one." ”

In fact, the best way to make charcoal into powder should be put into the grinding disc, so that the charcoal powder will be very even, and when mixed with saltpeter and sulfur, the combustion effect will be much better.

But it's a pity that there is no stone grinding in this house, and Li Chengqian didn't expect that Sun Fugui, as a feudal landlord, would put a stone grinding in the house in the city.

"Da Lang, is there enough charcoal powder?" Xi Er was stunned and rubbed his somewhat sore arms, looked at the few people who were squatting together and bragging and farting.

"How much has it been hammered?" Li Chengqian got up from the steps of the door, shook up to Xi Junmai and said.

"It should be halfway there." Lao Xi said with some resentment. It's true that he has strength, but he can't use people as stone grinders, Wang Chenghu still has the strength, why don't you see him hammer a few times for himself.

"Almost, Xuan Ce, Chenghu, come over and help." The stirring of gunpowder is a dangerous job, and Li Chengqian never wants to go into battle in person, so he found Wang Chenghu, who has good physical strength, and Wang Xuance, who is more careful, to accompany him.

"Yes, yes, mix evenly."

"Chenghu, with some strength, haven't you eaten?"

"It's more than 20 pounds in total, why is it so troublesome."

Li Chengqian watched Wang Chenghu and Wang Xuance work, muttering and constantly urging and complaining, and the two of them kept rolling their eyes.

But there is no recruitment, these two people are congenitally insufficient, and none of them is the emperor's father.

Finally, around midnight, all the tasks were completed.

Looking at the large pile of black powder on the ground, Wang Xuance frowned and said, "Da Lang, this is the gunpowder you are talking about?" ”

"I don't know!" Li Chengqian shook his head, attracting everyone's sideways.

After working for most of the night, Ya swore that this thing was useful, and the mountain sound of the was blown away, and the ears of the big guys who listened to a lot of adjectives almost came out of calluses.

As a result, now, Ya even said that she didn't know what it was.

"Look what I'm doing, how do I know if this thing is good if I don't try it?" Li Chengqian was a little hairy when he was stared at, and said after taking two steps back.

However, in the end, a group of people still did not experiment, but according to Li Chengqian's suggestion, they packed ten large bags of two catties and put them in the corner near the city wall.

Li Chengqian They don't have much time, no matter whether they succeed or not, they don't have time to test again, so it's better to leave it at that, if it doesn't work, they will think of other ways, and the gunpowder matter can only be given up for the time being.

"Wu Chen, go find some lamp oil, make a few fire twists, and use them when lighting the fire for a while." Time was tight and the task was heavy, and Li Chengqian really couldn't think of a way to use it as a fuse, so he decided to use fire directly.

At the end of the sub-hour, everything is ready.

Seeing Wu Chen go out with the fire fold, Wu Zhao, who was held in Li Chengqian's arms, looked up at his face and asked, "Brother Gao Ming, will there really be a lot of thunder for a while?" ”

"Well, there will be a very loud thunder, so Zhao'er should cover her ears well." For some reason, Li Chengqian wanted to pinch her nose when he saw Wu Zhao, and this time was no exception.

"Brother Gao Ming, don't always pinch Zhao'er's nose, it will get longer." Wu Zhao covered his little nose and said in a particularly serious tone.

"No, the nose of a lying child will become longer, and if a child does not lie, the nose will not become longer." Speaking of the longer nose, Li Chengqian couldn't help but think of Pinocchio, but he couldn't remember who the author was, but I have to say that Ya is very awesome.

Just before Li Chengqian and Wu Zhao could talk a few words, Wu Chen had already rushed in from outside and made an OK gesture to Li Chengqian.

"They all plugged their ears and opened their mouths wide." Li Chengqian finally instructed, and after checking Xiao Wu's practice, he squatted on the ground with his head in his hands.

"Thunder, as for ......" Among the group of people, only Xi Erzhu and Wang Chenghu stood at the door of the hall indifferently, looking at everyone in the room with disdain.

And then......

......A dull cardiac arrest sound came from the backyard, and the reflection of the walls was much louder than normal.

Thousands of years of peace, with this loud bang, were completely broken.

The killing machine of the thermal weapon was finally released by Li Chengqian himself, and many years later...... Far from it.

The shock wave formed by the huge sound swept through Li Chengqian's house, the ground was shaking violently, and even the house was shaking, and countless tiles fell from the roof and smashed on the ground with a 'crackling' sound.

Wang Chenghu and Xi Er, the stunned duo, were completely unresponsive after being swept by the huge sound wave, and opened their mouths wide, staring at the direction from which the sound came with ghost-like eyes.

However, fortunately, Li Chengqian simply put these prepared gunpowder bags in the corner of the courtyard and did not bury them in the soil, so this time it just sounded loud, and the damage caused was not much. Of course, a fallen courtyard wall can't be counted.

A huge sound swept through Kaifeng Mansion, completely waking up the entire Fucheng from its sleep, and countless people rushed out of their homes in the posture of half fruit and full fruit. On the long street, adults scream and children make trouble, which sounds no less than the movement on the Shangyuan Festival.