When I think of the production of military weapons, Xuan Shijing can't help but think of the arsenal of Daqin, the earliest assembly line industry, and the name of the person in charge is engraved on each weapon. Pen ~ fun ~ pavilion www.biquge.info

If His Majesty Li Er can really agree with Xuan Shijing's theory of improving weapons, Xuan Shijing will also suggest that His Majesty Li Er might as well take the example of Daqin's weapons manufacturing to build military weapons, and adopt the method of assembly line, which can improve a lot in terms of efficiency.

"Brother Jing is going to play to his father and transform the weapons of the Tang Dynasty soldiers?" Jin Yang looked at Xuan Shijing with a surprised face.

"It's just an idea, as for whether it can be accepted by His Majesty, I don't know yet."

"If it is beneficial to my Tang Dynasty soldiers, my father will definitely value it very much, but when Liaodong raises swords again in the future, I don't know how many lives will be lost under the sword."

It's all a living human life, whether it's the Tang Dynasty or the Goguryeo people, the end of the river of blood is not what Jinyang likes to see.

It's just that on the battlefield, if the dead are not Goguryeo people, then it is the Tang Dynasty, so in comparison, the lives of the soldiers of the Tang Dynasty are more valuable.

Hearing Jinyang's words, Xuan Shijing didn't know how to comfort her, the war between the Tang Dynasty and Goguryeo was inevitable, why did His Majesty Li Er send troops to attack Goguryeo to complete what the former Sui had not done?

It can be seen from the territory map of the Tang Dynasty that at the beginning of Zhenguan, the lost land in the Tang Pass was recovered, not only in the Guannei, but also in the grassland, breaking the Turkic royal court, and now, on the side of Longxi, Hou Jun gathered troops out of Gaochang, and the originally fragmented land has been included in the territory of the Tang Dynasty by His Majesty Li Er, so now, only Goguryeo remains.

As long as Goguryeo is taken, then the territory of the Central Plains Dynasty can be considered complete.

"Master Qiqi, the person has arrived."

At the entrance of the stairs, the little guy in the Xuanwu Building stood there and bowed to Xuan Shijing.

"Let him in."

"Yes." The little guy answered and retreated.

"Brother Jing, sit down." Jin Yang got up from the chair and wanted Xuan Shijing to sit down, after all, Xuan Shijing was going to talk about business for a while.

"It's okay, you just sit down, I'm more comfortable sitting at the table." Xuan Shijing smiled at Jin Yang.

As soon as the words fell, a middle-aged man came up from the fourth floor, coarse linen clothes, and a dark blue cloth towel wrapped around his head.

"Belong to the mountain below, meet the Hou Ye, meet Her Royal Highness the Princess." Fang Shan walked to the center and bowed to Xuan Shijing and Jin Yang.

"No courtesy." Xuan Shijing looked at Fang Shan: "Ben Hou heard that the matter of the coal mine has been settled?" ”

"Yes, according to the kind of black ore described by Hou Ye, under the tree with a group of people in some places in the Guannei to search around, in the territory of Dingxiang County, Yunzhou, found the coal mine you said, Hou Ye, you said that the subordinates let people collect some of it, and now it has been brought to Chang'an, and when it is subordinated, it has been brought to Xuanwu Tower."

"Yunzhou, Dingxiang County." Xuan Shijing carefully recalled the place that Fang Shan said, which was very close to Shanxi Datong in later generations, and it was not surprising to find a coal mine in that place.

"Brother Jing, since Fang Shan said that he had brought the ore to the Xuanwu Tower, then let's go and see the coal mine." Jin Yang proposed.

Xuan Shijing nodded.

"Where's the coal mine?" Xuan Shijing looked at Fang Shan and asked.

"Master Hou, it's in the backyard of the Xuanwu Building." Fang Shan replied.

"Let's go, son, let's go to the backyard." Xuan Shijing stood up straight and said to Jin Yang.

The three of them went downstairs and went directly to the backyard, where Xuan Shijing instructed the servants in the building to prepare firewood, straw and flint and send them to the backyard.

Whether it is a coal mine or not, you have to burn it to know, by the way, see what the quality of the coal mine dug underground during the Tang Dynasty is.

When he came to the backyard, Xuan Shijing saw a few black stones placed on the stone grinding plate, which were exactly the same as the coal mines in his previous life.

Coal indeed.

The little servant found straw, firewood and flint from the firewood room, and according to Xuan Shijing's instructions, lit the straw in the yard, and then ignited the firewood.

After a while, the coal placed on the firewood was ignited, and looking at the red coal burning, Xuan Shijing's heart was settled.

This matter can be regarded as settled.

"Huh? I didn't expect this stone to really burn. Jin Yang looked at the burning coal with a curious expression.

"Don't look ordinary, this coal burns up, the temperature is not low, if it is used on wrought iron, the effect is very obvious." Xuan Shijing said: "There are still two pieces of coal and stone left here, and tomorrow, I will bring these two pieces of coal into the palace to meet Your Majesty." ”

Jin Yang nodded.

If it is really as Brother Jing said, use this coal stone on wrought iron, then what Brother Jing said before to raise the weapons of the Tang Dynasty soldiers to a level, it is a sure thing, but there are so many Tang soldiers, this is not a small project, so this matter, the sooner it is, the more beneficial it is for Datang.

"Except for the people you brought to find this coal mine, but there are others who know?" Xuan Shijing looked at Fang Shan on the side.

Fang Shan shook his head: "There is no one else. ”

"Very good, this matter will be handed over to you, take people to Dingxiang County, dig coal, remember, dig coal in the cave should not exceed three zhang, be sure to ensure the safety of people, you know?" Xuan Shijing admonished.

"Yes, my subordinates understand." Fang Shan replied.

Although I don't understand why, since it was ordered by the Hou Ye, I just did it.

"Master Hou, the coal and stone dug up"

"It's all transported to the cement kiln, by the way, it's all there, the cement is fired as soon as possible, Ben Hou is waiting for their good news in Chang'an."

"Yes, Master Hou."

"Let's go" Xuan Shijing waved his hand, signaling that Fang Shan could leave.

Fang Shan bowed to Xuan Shijing, and then left the backyard of Xuanwu Tower.

"Brother Jing is going to mine that coal mine so early? Do you want to say hello to your father first? At that time, even if something happens to the court, my father's side can help Brother Jing say a few words. After Fang Shan left, Jin Yang opened his mouth to say these words to Xuan Shijing.

"Don't worry, before you see the benefits of the coal mine, the people in the court won't understand." Xuan Shijing scratched Jin Yang's nose dotingly.