The sound of explosions was accompanied by dust, and the flying debris smashed on the mountain, crackling.

The dust gradually faded, and a group of people came out from behind the truck far from the blasting point, shouting and cheering excitedly in the direction of the explosion.

It's a power they've never seen before.

The outside of the cart is covered with a layer of iron sheet, which can withstand the impact of stones.

Originally, there was no need to do more, it was the first blast, and it was always right to be careful.

Yang Chengying, who was sitting in the rear, observed with a telescope, walked through the cheering crowd, and was extremely excited to see the gap formed by the explosion.

"After a strategy, it was successful!"

Mao Yuanyi also observed with a telescope and said to Yang Cheng excitedly.

As the author of "Wubei Zhi", he never imagined that one day he would see something several times more powerful than gunpowder.

"It finally worked." Yang Chengying took a long breath, "Tell the people not to get too close, after all, this is the first time to use it in practice." ”

"Hey." Mao Yuanyi answered, and hurriedly called all the signal soldiers and asked them to go down to tell the cheering people.

"Oh God."

John Tang drew a cross in front of him, dumbfounded.

Yang Chengying listened, turned his head to Tang Ruowang and said, "This is just the beginning, when we build the road to Damiao Town, there will be more incredible things." ”

Tang Ruowang smiled: "Don't worry, I will keep my mouth shut." ”

He knew that Yang Chengying was worried that he would spread these secrets to the West through the church.

I used to have this idea, but now I don't want to think about it at all.

Just as he was about to say something, he saw a herald arrive.

"After that, they asked, is it possible to start building roads?"

The herald clenched his fists and saluted, then asked.

Yang Chengying nodded: "Yes." Invite Wang Tianxiang here, I have something to say to him. ”

"Yes." The heralds retreated.

Wang Tianxiang is the person in charge of the section of the highway from Chaoyang County to Damiao Town, specializing in explosives.

After a while, Wang Tianxiang came running.

He looked excited: "Jingluo, this thing is too powerful, much more powerful than the previous gunpowder." ”

"But the danger is also great."

Yang Chengying emphasized: "You take the blasting team, follow what I taught you, and implement it step by step." ”

"Hey." Wang Tianxiang touched the sweat on his face.

The first time I operated just now, I was so nervous that I was sweating.

"After the road is repaired, it will be called Tianxiang Road."

Yang Cheng should give a reward other than material rewards in a timely manner: "And build a monument next to the road, and engrave you and your blasting team, as well as the most dedicated road builders." ”

Wang Tianxiang's eyes widened instantly, and he said excitedly: "Please rest assured, I will be very, very careful." ”

"Well, go ahead." Yang Chengying nodded.

Wang Tianxiang left as if he was galloping.

To erect a monument for a craftsman, that is something that has never been done for eternity, of course, is very exciting.

Coming down from the observation position.

Yang Chengying and Mao Yuanyi returned to the explosives factory.

The explosives that people generally understand in modern times are nitroglycerin explosives.

This is a liquid high explosive with high sensitivity and can explode if you are not careful.

Yang Chengying didn't make it before, not because he couldn't, but because the explosives were too dangerous.

In the early days, he was bent on survival and always stayed on the front line.

If the rear explodes every few days, it repeats itself.

And the hearts of men were in turmoil.

In addition, there is a lack of one thing, which is also the reason why Yang Chengying does not make explosives.

This thing is diatomaceous earth.

In the entire Northeast, only the north of Shenyang controlled by the Later Jin Dynasty and the Panshan Station controlled by Yang Chengying himself had that thing.

Diatomaceous earth can improve the safety of nitroglycerin explosives at the cost of being less powerful.

The explosives factory is close to the Daling River and is only separated by a wall from the Dagou Chemical Factory.

With the successful development of sulfuric acid and nitric acid, Dagou sulfuric acid plant was renamed Dagou Chemical Plant.

When they arrived, dynamite factory workers were making nitroglycerin explosives.

Put the basin in the water, the basin contains a mixture of sulfuric acid and nitric acid, weighing 3.5 kg.

Slowly drip another half kilogram of glycerin into the basin.

The workers are far away, and there is only one at a distance of a few tens of meters.

If you notice smoke, sink the basin to the bottom immediately. Turn around and jump into a one-person-high pit to avoid danger.

Of course, this did not happen for a while.

"Jinglue, how did you come up with this solution?" John Tang looked at it and admired it very much.

Yang Chengying smiled: "This, I suddenly thought of it. ”

In fact, this is the method of making nitroglycerin by the earth method by the venerable group of people.

Another name is pot nitrification.

With the help of flowing water passing through the basin, the temperature inside the basin is lowered.

Due to the Xiaoice period, the temperature is generally low, and it is not necessary to squat by the river to make nitroglycerin at a low dawn every day.

After making it, diatomaceous earth is added and mixed together in a ratio of 3:1.

Due to the addition of diatomaceous earth, the color turns yellow.

Therefore, it is also called yellow powder - as opposed to black powder.

After the production is completed, the workers pour it into the paper tube and fix it with string.

Carefully put it into the warehouse.

"Jinglu, Jin Shixiang is here."

Everyone watched from afar, and Bai Guangen suddenly pointed in the direction of the door.

Outside the factory door, Jin Shixiang stood.

For safety reasons, the plant is not allowed to move around at will.

Yang Chengying and others were at the door of the factory.

"What's the matter?" Yang Chengying walked out of the factory and asked Jin Shixiang.

"After a while, the ground of the steel mill has been leveled, you can go and take a look."

Jin Shixiang is the head of the steel plant.

"Let's go."

Yang Chengying said goodbye to Mao Yuanyi and others, and went to the steel factory with Jin Shixiang.

The steel plant is designed in the southwest of Chaoyang County, with Xigou at its back.

The scale is very large, covering an area of 5,505 acres, with a northeast to southwest trend, 1.3 kilometers wide and 2.6 kilometers long. It took several months to mobilize 40,000 people and 10,000 craftsmen.

From the time the people's houses were repaired, until the first month.

The layout is designed inside, including a coking plant, an ironmaking plant, a steel plant, a steel laboratory......

With the iron of Damiao Town, the fierce of Tile House Town, and the coal of Fuxin.

Yang Chengying stepped on the ground and said, "It's good, after the house is built, I'll send someone to check the quality." ”

"Please rest assured." Jin Shixiang was very sure, "I have been following you for so long, this little thing will not be difficult for me." ”

"I'm relieved of what you're doing."

Yang Chengying patted him on the shoulder, "How to manage so many people, you have to learn well with Lord Zuo." ”

"Lord Zuo also knows that the situation is complicated, and he has been here to assist me these days."

Jin Shixiang said.

Yang Chengying has been in the laboratory recently, and he doesn't know anything about the other side.

"That's fine." Yang Chengying looked left and right, "Why don't you see Lord Zuo?" ”

"It may be something, leave temporarily."

Jin Shixiang didn't see Zuo Yingxuan either.

Yang Chengying nodded: "You thank him for me, and when I finish what I do, I will thank him again." ”

"Yes." Jin Shixiang clenched his fists.

Yang Chengying walked away, he estimated that the women's barracks was coming soon.