Coming here, naturally it is not a vacation, and now Duan Ye deeply feels that time is too short. Every day, you have to use it for several days to be worthy of yourself.

What's more important is that Jiao Meng was really attentive, so he sent saltpeter mines, and after simple refining, he got the fire nitrate.

And today, Duan Ye came here with Bald Ling, Liu Yiru, Lan Xin, as well as Hu Kai and dozens of pro-soldiers, just to experiment.

The mantra of one sulfur, two nitrate and three charcoal, Duan Ye remembers, the specific ratio, of course, needs to be adjusted again, but the approximate ratio is so much, it is enough.

Everyone has already been prepared, dozens of pro-soldiers, they have already patrolled several times, to make sure that there will be no one else here, Duan Ye is actually a little nervous at this moment, because many of his ideas in the past, such as divine arm bows, crossbows, etc., are more or less done by craftsmen, and they just mention it, and they will do the specific work.

But this time, everything was himself, just like when Duan Ye set off firecrackers for the first time when he was a child, his hands were a little shaky.

In fact, there is no need for any space, Duan Ye directly poured the prepared potion into a porcelain bottle in public, and then covered it with a wooden stopper, there was a small hole in the wooden stopper, Duan Ye took a thread soaked in oil and dried from Bald Ling, and then inserted it through the hole.

At this time, Liu Yiru took out the fire fold and lit the candle in Lan Xin's hand, Duan Ye shook the bottle lightly, and then nodded. Lan Xin held the lit candle and gently dripped the wax to the place of the hole, sealing the hole with wax.

After checking it carefully and making sure that there was no problem, Duan Ye put the bottle on the ground, and then Hu Kai gently buckled a wooden basin on it, of course, a very long lead, naturally had to be pulled out.

Duan Ye smiled bitterly, and he didn't know if his home-made bomb was easy to use.

Liu Yi asked suspiciously, "My lord, is this...... Can this thing really work? ”

"yes, it's such a small bottle, such a big basin." Bald Spirit was also a little incredulous.

Only Lan Xin looked at Duan Ye with a smile and did not speak. She will always trust Duan Ye so much.

Duan Ye is actually a little bottomless, this thing, from design to manufacturing, is completely completed by himself, there is no check, and there is no time to do experiments in the past.

"Don't worry." Duan Ye stiffened his head and said, "You all stand back!" ”

"My lord......" Hu Kai hesitated a little, "Let's let the lowly post come." ”

"No, this thing is dangerous, so I'd better do it." Duan Ye waved his hand firmly.

"My lord, the son of a daughter, if you can't sit down, let's come to your humble position." Hu Kai's face was solemn, and even Duan Ye was moved by his loyalty.

However, how dangerous this thing is, in fact, Duan Ye still has a number, this kind of black powder, according to Duan Ye's idea, is actually the power of a thunder king, Duan Ye's hands were blown up when he was a child, and it is not a big problem, I am afraid that the real hurt people is fragments. This thing, I have a number, and people don't have a score, so I definitely can't let people come.

Besides, if the head of the situation does not choose to step forward when encountering danger, it will chill the experience of his subordinates. On the contrary, if this thing is done just right, it can also buy people's hearts, so why not do it.

"Hu Kai, take the three girls back together! That's an order! ”

Sure enough, Hu Kai was moved by Duan Ye's words and that righteous and awe-inspiring expression, and with tears in his eyes, he escorted Liu Yiru and the others to retreat.

The eyes of the three girls were also moist, and they retreated nearly ten zhang, and Duan Ye also estimated that such a long distance was safe enough, so he was relieved.

Duan Ye took out the fire fold, but maybe it was a good thing to grind, at this time, on the originally calm grassland, the wind actually rose, Duan Ye tried a few times, and the fire was blown out.

After a while, I finally got it, but the direction of the wind suddenly changed, and the speed of the lit lead burned much faster than expected because of the wind.

Duan Ye, who was shocked, threw down the fire fold and ran, shouting as he ran: "! Raise your shield! ”

It turned out that this porcelain bottle was tightly sealed, and there was no corresponding test before, so it was impossible to determine how powerful the explosion was, and if the fragments were splashed, it was likely to hurt people. Therefore, before leaving, Duan Ye temporarily decided to let the soldiers bring shields.

Taking out the end of the 100-meter run, Duan Ye finally ran behind the shield out of breath, and just grabbed the little hands of Bald Spirit and Lan Xin, who were a little cold, only to hear a loud noise, Lan Xin and Bald Spirit were so frightened that they screamed, and even Liu Yiru was dragging Duan Ye's sleeve, looking very nervous.

Everyone was stunned to see the rather heavy wooden basin, flying to a height of more than ten zhang, and at the same time, hearing a wild sound of the shield, even a very experienced veteran with a lot of arm strength felt that he had sexual strength, because the impact was too great.

It took a while until the tub fell down that everyone came to their senses.

Bald Spirit opened his eyes at this time, looked at Duan Ye, whose face was also a little pale, and said in shock: "My lord, this is ...... It's terrible, isn't it? ”

In fact, Duan Ye was also a little nervous, anyway, he used to live in a peaceful environment, explosions or something, but he only saw it on TV, there was no one in life, as for firecrackers and the like, it was for entertainment, and the xìng quality was different from this.

At that moment, Duan Ye realized how important the invention of gunpowder was, which completely marked that human beings had the ability to transform nature.

Think about it, if there was no match just now, such a close distance, I'm afraid these people would have been injured.

Hu Kai is very grateful now, in fact, he was a little disappreciative of Duan Yeran's breathlessness just now, but he didn't show it out of respect for Duan Ye.

But now, he was really grateful to Duan Ye, because he had no idea about the explosion, and he didn't know what the consequences would be, and he also knew that if Fang was the one who went to light the fire, he was sure that he wouldn't be in such a hurry to run back, in that case, wouldn't he be completely unable to avoid those fragments.

When everyone walked to the outside of the shield and took a look, many people really gasped. Because the fragments were deep into the strong shield, very deep.

The people present will feel that they have a lot of strength, but they also know very well that if they are allowed to hold the fragments with their bare hands to pierce them, it is impossible to pierce them so deeply, and it is even a question of whether they can let the fragments hang there like that. They don't understand it, because the force of chemical energy is multiplied when it is converted into kinetic energy.

Duan Ye breathed a sigh of relief, because he succeeded.

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