Not long after, Guo Jia saw Zhao Feng holding a large wine jar and came to the agreed place.

Guo Jia is puzzled? Is it a picnic? But why didn't you let him kill these domestic animals and pack up all the flesh and bones?

Zhao Feng walked in, Guo Jia greeted him, took a closer look, and found that the wine jar in Zhao Feng's hand was full of black and unknown objects, and the smell was still a little pungent.

"My lord, what is this?" Guo Jia's curiosity haunted him and asked.

"Hehe, you'll find out later!" Zhao Feng actually sold Guanzi.

Guo Jia was speechless, what annoyed him the most was Zhao Feng's appearance, it was really not worth his life to die in a hurry!

"Come over here and help!" Zhao Feng greeted the soldiers who were leading the livestock.

According to Zhao Fengde's instructions, he placed this jar of black powder in the center of this mountain col, pulled out a long fuse, and then, at ten, twenty, thirty, forty, and fifty steps away from the gunpowder, a few livestock were tied there!

Immediately, Zhao Feng ordered everyone to retreat a hundred steps away, and he came to the fuse with a torch.

"For a while, all open their mouths wide, and don't close your mouth and cover your ears! Do you understand? Zhao Feng commanded loudly. Zhao Feng estimated that such a large explosive jar exploded, and it was in this big mountain pass, the sound would definitely be amplified, and covering the ears would still shock the eardrums, so Zhao Feng asked others not to cover their ears, but to open their mouths to make a balance between internal and external pressure, so that it would be fine.

Although they didn't understand what Zhao Fengde meant by his orders, everyone knew that Zhao Feng would definitely not harm them, so they nodded, and opened their mouths wide according to Zhao Fengde's instructions.

Seeing this, Zhao Feng nodded with satisfaction, and then began to ignite, and at the moment when the fuse was ignited, Zhao Feng immediately ran back, rushing to the safety area as quickly as possible.

As the fuse made a "snort" sound, it burned rapidly, and everyone held their breath, wanting to see what Zhao Feng was doing.

"Boom!" Just when Zhao Feng had just run to everyone's side, a loud bang shook everyone.

And Zhao Feng, who had been running forward, instantly felt the strong shock wave coming from behind him, as well as the earth-shaking sound, and the sand particles that flew straight over with the shock wave, hitting Zhao Fengde's back, and it was a faint pain.

After a long time, when the smoke had cleared, Zhao Feng turned around and returned to the col, wanting to check the power of the explosive jar.

He was overjoyed by the result, and where the jar was placed, a large pit appeared, and the diameter of this pit was about six or seven paces.

As for the domestic animals, those within thirty paces of the jar had been completely killed, either to minced meat or to flying fragments. There were also animals that had no wounds all over their bodies, but they bled to death. This is the death of the shock of life. Most of those who were forty and fifty paces away were injured by the flying stones. The whole col can now be described as a complete mess.

"This and this ......" Guo Jia naturally followed Zhao Feng to the col to check, Guo Jia, who had been shocked by the huge sound just now, couldn't say a word of shock at the moment, this is really surprising, right?

"Lord, this ......" After a long time, Guo Jia regained his language function.

"How's it powering?" Zhao Feng smiled and looked at Guo Jia, whose legs were still trembling slightly.

"It's amazing!" Guo Jia doesn't know how to describe this explosive now, this power is really terrifying, if this thing is used on the battlefield, then ......

Guo Jia swallowed his saliva, he didn't dare to think about it anymore, this thing can be said to be something that can turn the tide of the war and turn the tide! Moreover, if his vision is not problematic, this thing is completely something that can change the way soldiers fight!

"This is the secret weapon of our army, and everyone present must keep it a secret! Do you understand? Zhao Fengde's tone was extremely serious.

"Understood!" Not only Guo Jia, but also the soldiers knew the importance and power of this thing, and with Zhao Feng's serious tone, they naturally wouldn't say it.

"If it weren't for Jia's own eyes, I'm afraid Jia would have associated this thing with Tianlei!" Guo Jia sighed.

"Hehe, good name, this thing will be called Tianlei in the future!" Zhao Feng smiled slightly, most of the people in ancient times were superstitious, even Guo Jia was like this, if the explosives were to be packed on the battlefield, the enemy army would definitely think so, so it seemed to be to say, even God is helping our Liaodong Army, you surrender quickly!

In this way, the morale of the enemy army can be dealt to the maximum extent in order to achieve victory in the war as quickly as possible!

"Lord, can this thing be mass-produced?" Zhao Feng ordered the soldiers to clean up the mountain pass, and he and Guo Jia returned to the city first.

"Well, of course!" Zhao Feng nodded, "The raw materials of this thing are very simple, they are the few things I asked you to find!" ”

"What?" Guo Jia couldn't believe Zhao Feng's words at all, Zhao Feng asked him to find saltpeter, sulfur and charcoal before, could it be that this thing is a mixture of these three raw materials?

"That's right, as you can imagine, it's made of a mixture of sulfur, saltpeter, and charcoal." Zhao Feng nodded, "How is it, don't you think it's incredible?" ”

"Incredible, incredible!" If it was before, Zhao Feng said that these three things were mixed together and had great lethality, he would definitely not believe it. Now that he has seen the real thing, and he has watched the experiment just now, he has to believe it even if he doesn't believe it!

"Hehe, there are a lot of unbelievable things, and there will be more in the future!" Zhao Feng smiled slightly. According to the thinking habits of the ancients, whether it is an airplane, a telephone, or a steam engine, it will make it feel incredible! That's why Zhao Feng said this, and it was hard for him to imagine what kind of expression Guo Jia would have if he made these planes, 10,000-ton ships, telephones, and telegrams.

"Najia will wait and see!" Guo Jia smiled slightly, looking forward to the "unbelievable" thing that Zhao Feng said.

"Ordered people to buy sulfur, saltpeter, and charcoal in large quantities! But don't be noticed by the rest of the princes, understand? Zhao Feng instructed Guo Jia.

"Understood! Leave this little thing to Jia! Guo Jia said in a big way.

"Good! It's up to you! Zhao Feng smiled slightly and walked towards the blacksmith shop. He handed the formula in his hand to Master Wang, and then ordered him to wrap it into explosives packets one by one!