Zhao Dezhao looked back and saw that it was Li Dao, the county guard from Fangling County (Fang County). "Yes, it's a gunpowder workshop now, and it's going to be an explosives workshop in the future."

Peach Blossom Island is a Jiangxinzhou with an area of two or three square kilometers, only about 100 meters wide from the south bank.

Zhao Dezhao chose to develop primary industry here because of this location.

At their feet here are the remnants of thousands of mountains, and the geology is stable.

Peach Blossom Island is a long and narrow island with more than three kilometers of river between it and the south coast.

It is less than 100 meters wide from Taohua Island, and a small hydropower station can be built upstream, and a wooden bridge several kilometers long can be built below, and various factories can be built on it.

For big industry, Xiangyang is not suitable, because there are no rich mineral resources here.

However, as an initial stage of industrial research and technology accumulation, the advantages here are good.

Research is carried out here, the technology is mature, and the personnel are trained, and they can be sent to the resource area for industrial development.

Li Dao hesitated for a moment and said, "Stay behind, the lower officials have a matter, I don't know if I should bother to stay behind." ”

Zhao Dezhao withdrew his gaze from Jiangzhong, glanced at him, and smiled. "It's okay, let's hear it."

Fangling County is a very strange setting, in the system of the Song Dynasty, it is a bit like a directly governed county, but no one wants to touch it.

Because this place has a prison-like environment, since the Spring and Autumn Period and the Warring States period, it has been a place of exile for important prisoners.

This important prisoner is not the real prisoner, but the political loser.

Fourteen emperors have been exiled here in history, and even more have been exiled ministers.

Especially in the Tang Dynasty, the emperor was simply exiled to Fangling County in turn.

After Zhao Kuangyin and Chen Qiao mutinied, they also exiled Chai Zongxun and Xiao Fuhou here.

There was also Zhao Tingmei who opposed Zhao Guangyi and was also exiled here.

This has always been the base camp against the central power, especially after the Yuan Dynasty, it was called a bandit's den, and the central power had no way to take it here.

Because it is blessed with a unique geographical environment, surrounded by rolling mountains, with a plain in the middle, and several rivers.

No major road can go directly into the mountains, and whether you enter or exit, you have to walk on the trails that stretch between the mountains for four or five days.

Out of the mountains in the north is the rich Hanshui Basin, and in the south is Shennongjia.

The imperial court went to suppress the bandits, and the power was too different, and people hid in Shennongjia, but no one could find it.

And the members of the royal family who were imprisoned were guaranteed their basic life in the local area.

The plains in the mountains feed more than 100,000 or 200,000 people, which may be a bit reluctant, and there is no problem at all with the special products of the mountains.

But it's also hard for them to come out.

Therefore, the exile of the royal family here is also the center of the country, unlike the border mountains and the emperor is far away, and there is no basis for rebellion.

The area under its jurisdiction is very large, and Shennongjia has been under its jurisdiction all the way to the eastern mountainous area of Xichuan.

However, most of the area is deserted, and the main population is concentrated in the plains of Fangling County.

This is a county, but the population is very small, and the county guard here is similar to a county order, and many officials laugh at themselves for being a county guard here, that is, being a cell leader.

Since Li Dao opened his mouth, he also said boldly: "Zheng Wang Zongxun is fourteen years old, and he has reached the age of marrying a wife. Before the minister set off from Fangling, the Empress Dowager Zhou also asked the lower officials to write to the court again, asking for marriage. ”

King Zheng was referring to Chai Rong's son Chai Zongxun, who ascended the throne at the age of seven, and then was mutined by Zhao Kuangyin and Chen Qiao in less than half a year and seized the throne.

With an identity like him, the court promised to marry and prepare for the wedding, and it was more than half a year and a year.

He is two years younger than Zhao Dezhao, and he has indeed reached the age when he should say goodbye.

He has a special identity, and if he is worthy of him, he will not marry him, and if he is not worthy of him, he will not marry.

"Again?" Zhao Dezhao smiled. "How many times?"

"It's been the fourth time since the beginning of autumn last year. Empress Dowager Zhou repeatedly urged the lower officials, but it was also difficult for the lower officials to do so. ”

Empress Dowager Zhou is the queen of Xiaofu, she followed Chai Zongxun to degrade Fang Ling, but she still has the name of Empress Dowager Zhou on her body.

Moreover, the Fu family has a lot of power in the imperial court, and Li Dao, the county guard, does not dare to offend her easily.

However, Zhao Dezhao didn't care about this matter, and it was not his turn to interject at all. He only has the identity of a prince, and he does not have the identity of a prince, so it is difficult to meddle in this matter.

Zhao Dezhao said: "I can't do anything about this matter, what does Li Junshou mean by what he said to me?" ”

Li Dao bowed and hugged his fists and said: "The lower officials don't dare to involve the stay-at-home, but they just want to stay and write a letter to explain the matter." ”

Zhao Dezhao is now the left-behind guard of Hanjing Mansion, the envoy of Shannan Dongdao, the military and political affairs of Shannan Dongdao, and the civil power.

Fangling County belongs to the jurisdiction of Shannan Dongdao, and if he is only allowed to go to the book, it is not easy to shirk.

However, Li Dao's identity is not suitable, Zhao Dezhao said: "There is no need to say anything about this matter, if I want to go to the book, I must also have the entrustment of the Empress Dowager Zhou, you and I are not too active in this." ”

"Whoa." Li Daochang let out a long sigh and stood behind Zhao Dezhao and stopped talking.

Zhao Dezhao smiled, he knew very well that Li Dao's move was not to shirk responsibility, nor was it not without responsibility, but to deliberately use a small thing to bring him closer to his boss.

"Fangling Mountain is far away from the highlands, the transportation is inconvenient, and if the local area wants to develop, it must first build roads. Does Li Junshou have a plan? ”

Li Daoleng paused, and said in high spirits: "If you stay behind to support, no matter how difficult it is for your subordinates, they will build this road." ”

In the Ming Dynasty, the capital was far away from Fangling, but many rare minerals purchased by the Ma family came from Fangling.

For example, the barite used to make optical glass is produced in Fangling.

However, Zhao Dezhao did not pay attention to these details and did not know the specific origin.

He thought for a while and asked: "In addition to a small road between Fangling and the outside world, is there a river navigable?" ”

Li Dao said: "A hundred miles east of the city, you can reach the Nanhe, which flows directly into the Han River. However, the South River has shallow water, and can only cross rafts, not boats. Xiaguan out of the mountain, is through the Nanhe waterway, it takes more than three days to come to Hanjing. ”

"What if you go on a mountain road?"

"The mountain road is 300 miles in total, and it takes four to five days to walk, and many sections of the road are not tragable."

Zhao Dezhao nodded and said, "If you want to get rich first, build roads first." Only with a road can the specialties of the mountains be transported out of the mountains. After you go back this time, you must arrange people to explore resources everywhere, and if Fangling is rich in resources, this road can be repaired. ”

"Whoa."

At this time, Murong Yanqing came out of the computer room a little bored, came to Zhao Dezhao's side and hugged his fists and said: "Jiedu envoy, the lower officials are not very interested in these things, I heard from Rixin that they said, now that Jiedu envoys have made a clairvoyant mirror, this time they have to wait for me to see, why is there no trace?" ”

Zhao Dezhao looked at Murong Yanqing, who was deliberately pretending to be a reckless man, shook his head and smiled. "Don't worry, I'll go over here after reading it."

In fact, the generals in the army are more curious about the grinder, because the grinder can sharpen knives, and there are not many knives to be repaired in the capital in the army.

Murong Yanqing is a military general, he is afraid that he will be too shrewd, and Zhao Dezhao will be wary of the Murong family, so he can only pretend to be a reckless man.

In the last empty house on the riverside platform, there are several sets of telescopes and some rare ore samples made from this time.

Ordinary glass can be made from quartz sand, soda ash, feldspar and limestone.

However, the higher the glass, the more rare ores are needed.

Like barite, the main component is barium sulfate, which is an important component of optical glass.

Ordinary glass is a silicate component, but oxides, hydroxides, nitrates and carbonates, phosphates or fluorides are also essential components of high-grade glass.

Zhao Dezhao doesn't understand this, but he also knows that making glass is not just about melting some sand.

The convex lenses, concave lenses, and prisms required for telescopes are quite high.

The generals had been sneaking behind during the previous visits, and they had no interest in most of the technology, or rather, they didn't think it was their business.

But when I saw the binoculars, I couldn't put them down.

Because the prism needs to be polished into a triangular shape of a very pure crystal, there are very few qualified products this time, and only four sets of telescopes are made.

Two of them are monocular, two are double.

The monotube is made of bamboo tubes, and three-section sleeves of different thicknesses are selected, and grooves are carved on the bamboo tube to form a track, which is equipped with three lenses and a prism.

The binocular is made of wood, and the craftsmen have polished the qualified accessories by hand and then assembled them, which can also adjust the lens.

The magnification should be eight to ten times for a single tube, and six to eight times for a double tube.

On the island of Peach Blossom Island, a sign was deliberately erected with a few big characters written on it.

The distance is already almost a kilometer, and it is not clear to the naked eye.

But with the use of the telescope, the big characters are like in front of me.

These generals held the binoculars one by one, and they were reluctant to put it down.

"Don't grab it, these are samples, none of you can take them, just take a look now. In a few months, these clairvoyants will be distributed to the army, and one will be issued to each of you. ”

Murong Yanqing deliberately smiled and asked, "One for one person?" ”

Zhao Dezhao said with a smile: "In the future, according to different branches of the military, generals at the head level should be able to be equipped." However, this will not be given to you until my brocade guards are all installed. ”

The generals laughed at Zhao Dezhao's partiality, but Zhao Dezhao was above board.

After visiting the ironsmith workshop, the original arrangement to go to the woodsmith was canceled, and the officials and generals returned to the inner city together.

He has already been in contact with officials in various places, whether it is official or private friendship, he has also behaved in place, and he should eat and drink and send them away.

After being delayed for half a month, each of them still has a lot of official business.

After sending them away, Zhao Dezhao should also calm down and concentrate on climbing the technology tree.

In the afternoon of the same day, there were countless secret agents who left Hanjing under various identities.

Some of them went south, some went north, and each of them was burdened with the task of exploring the Hanjing Mansion.

Today's earth-shattering explosion shocked not only Hanjing Mansion, but the entire Great Song Dynasty and the whole world.