"Climb down, remember to climb down!" Han Yan said.

Yan Ming smiled and said, "No need, I didn't know the power last time so I let you climb down." This time you can stand. But be prepared not to be scared into peeing your pants. ”

Liu Che glanced at Yan Ming, this sentence scared to pee his pants, obviously talking about himself. Except for himself, the remaining three people present were all people who had seen the power of this thing.

"Don't worry, I'm not that small." Liu Che stood tall and looked light.

Yan Ming motioned to Han Yan and said, "You are willing to light the fire." Hit it on time. ”

Han Yan nodded, and the fire fold in her hand directly ignited the fuse of the fire thunder.

Almost at the same time, catapults were sent out.

The newly developed fire thunder drew an arc in mid-air and fell between the ten people in the center of the test site.

I have to say that Han Yan's technique is good. The fire thunder fell almost impartially among the ten people.

He was a criminal in heavy armor who tried to escape, but his feet were tied. I can only struggle indiscriminately.

"Boom!"

Flames rose and flames shot out in all directions.

The cast-iron shell of the fire thunder collapsed along the previously preset trunking. Diamond-shaped pieces of iron scattered in all directions.

Almost instantly, a fire broke out on the bodies of the three people who were close to the fire and thunder. And the different parts of the body of several people on the periphery were pierced by diamond-shaped iron blocks.

One thunderbolt, ten people. It was over almost instantly.

The smoke and dust rose, and the huge explosion made Liu Che, who seemed to be light and breezy, tremble slightly, and he was a little rickety.

In the face of the power of the bomb, people can't help but want to dodge.

Except for Liu Che, the other three were witnessing the power of this fire and thunder for the second time.

"Today's fire and thunder seem to be more powerful than any of the experiments of the day." Han Yan said.

Yan Ming nodded and said, "It's indeed stronger." The amount of medicine inside was increased by me and pressed tightly. So when it explodes, it's more lethal. ”

After the loud bang, the Hu cavalry lieutenant army waiting outside the test site entered it.

"Maintain the site and let Your Majesty take a look!" Yan Ming sneered.

When Han Yan, Wei Qing and the others heard this, their faces also showed a hint of strangeness, but they didn't stop Yan Ming.

Liu Che did not doubt him, settled his mind, and walked towards the test site in front. He had seen dead people, so he was naturally not afraid of the ten death row inmates who had just been killed.

But when he got closer, Liu Che suddenly covered his mouth and spit out.

The three people who were close to the explosion point were a little blackened, and blood flowed under the black charred flesh, and their bodies were like sieve eyes.

The rest of the people were miserable too. Two of them had not yet lost their breath, gasping limbly on the ground, and let out a low roar.

It was the first time Liu Che saw that people were blown apart so miserably, he couldn't help it, and spit it out on the spot.

However, he is a generation of heroes, and he will not be deterred by such a small situation. After throwing up, he gritted his teeth and checked again. It wasn't over until I watched the entire Shura field once.

"Two of them are not dead, give them a good time." Liu Che commanded, and the soldiers of the Hu Cavalry Captain Army had already drawn out their Yan knives, ending the lives of the two people happily and neatly.

Yan Ming didn't look at it at all.

Although they are death row inmates, although they are cruel when they commit crimes. But Yanming still didn't want to see this tragic scene.

Sometimes, I have to admire that great people are great for a reason.

As soon as he turned around, Liu Che seemed to forget about the miserable death row prisoners behind him. There was a sparkle in his eyes.

"Yan Ming, dead monkey, you said you have this kind of thing, why didn't you take it out earlier." Liu Che grabbed Yan Ming's shoulder and swayed fiercely.

Yan Ming shook his head and said, "This is also what the minister just discovered. There are still some things that are not perfect. ”

Looking at the two fire thunders at Yan Ming's feet, Liu Che said: "This kind of thing is very precious, it must be protected." If it can be applied on a large scale in the war, we will destroy the Huns, just around the corner. ”

Yan Ming nodded and said, "The core technology of this thing, Yan Ming has mastered it. His Majesty is required to establish an absolutely secret and safe place to ensure that secrets are not leaked. Only then can this kind of thing be mass-produced. ”

Liu Che nodded and said, "You really need to pay attention to the matter of secrecy. Prevent the spies of the Huns from stealing my Han's things, then it will be troublesome! ”

"The minister has an idea to build a factory in Yanmen County dedicated to the production of this iron ball. As for the things in it, Yan Ming tried to find a way to solve it. Yan Ming said.

"Just do as you say. You do it in the front, and I give it my full support in the back. Liu Che said.

And so it was settled.

The first to pass was Li Guang and Cheng's unknown army. Along with the army were Wu Laosi's group of workers who built a cement factory. There is also Lao Xu's group of engineering teams engaged in infrastructure construction.

The cement plant should be established as soon as possible. Only by establishing cement factories and brick factories and firing a large amount of cement can the city be built as soon as possible.

Of course, a cement plant cannot be built quickly. It will take a month.

During this period of time, Yan Ming made the smelting iron village completely stop the manufacture of steam engines. Instead, they began to cast iron balls that did not have much technical content.

Sulphur and saltpeter at the bottom of the East Valley have already begun to be mined under the watchful eye of the officers and soldiers.

With saltpeter, sulfur, and charcoal, this primitive black powder will be mass-produced.

In an extremely open area between Maoling-eup and Donggu, Yan Ming had the workers dig a huge pit down. The manufacture of gunpowder took place in the pit.

Of course, the manufacture of gunpowder is also an assembly line mode. Only in this way can it be guaranteed that the preparation of gunpowder will not leak secrets.

Old man Lu has already gone to the border. He was joined by his disciples and grandchildren.

According to Yan Ming's request, they wanted to make twenty catapults on the city wall in the clouds. Yan Ming also gave Old Man Lu a drawing.

It was a drawing of a huge crossbow that could sit on the city walls.

"Shoot the crossbow!" This name with a strong murderous aura was named by Yan Ming.

This crossbow arrow can be a special arrow, or it can be used directly with a spear, etc. Even Yan Ming also considered that this kind of crossbow machine could also fire crossbow arrows carrying fire and thunder in the future.

Once this kind of crossbow bolt is completed, when defending the city, it will definitely be able to get twice the result with half the effort.

All parties are in full swing.

The machinery of the state is in operation, and everything that seems difficult becomes simpler.

The cement plant and the brick-fired plant are progressing smoothly.

On the ruined city wall of Yunzhong County, a layer of wooden walls and towers was erected with trees. Although only a small part of the city wall facing the direction of the Xiongnu in the north has this wooden structure, it looks majestic.

Everything is in order.

Yan Ming soaked in the place where gunpowder was made all day long.

This kind of thing is most afraid of fire. He didn't personally supervise it for fear that something would go wrong.

It's always all in vain. Large quantities of gunpowder were produced, then packed and ready to be shipped to the border cities.

At this time, Da Lao Chen and others also built thousands of fire and thunder shells in the border city.

With these things, there will be greater certainty in holding the frontier.

Everything was ready, and Yan Ming was finally going to leave Maolingyi and go to Yunzhong County.