On the next road, Zhu Gantang asked Xu Wen about the current situation in Fengchun City.

He came in a hurry, only knowing a rough idea, but not the details.

Of course, Xu Wen knows everything, and there are some questions, especially in road construction, and he also wants to ask Zhu Gantang's opinion.

At the beginning, he did not just participate in the election of the chief official based on a concept, and he had a comprehensive understanding of the overall road conditions and technical level of the current Great Zhou.

So after the two got out of the car, the atmosphere between them was completely different, Yan Ji noticed it for the first time, raised his eyebrows, and said, "You two have a good relationship." ”

"I have already worshipped Mr. Zhu as my teacher, and I want to learn calligraphy and painting from him. Xu asked truthfully.

"Oh, too busy?" Yan Ji asked.

"Do your best. Xu Wen's words were very subtle, but his attitude was very serious.

"Yes, Master Zhu's contemporary, calligraphy is its own school, painting skills are not inferior to Wu Keming, the pattern is broad, and he can be a good teacher. Yan Ji's eyes softened and he smiled.

"Old Yan, this is really not like you, it makes my face turn red when I praise it. Zhu Gantang is also very familiar with Yan Ji, and he is smiling beside him.

"People are weird, don't boast to say, praise to say. Yan Ji's tone was strange, but there was a smile in his voice.

It stands to reason that in this era, you can't apprentice at will, you must inform the previous master, but at this time, no one mentioned Lian Tianqing, obviously everyone knows what kind of person Lian Tianqing is.

Realizing this, Xu Wen suddenly felt some pride inexplicably.

They came to Tianyun Mountain this time to inspect the mining and transportation of granite, roughly speaking, this involves two aspects of work, one is mining, the other is transportation.

In the early stage, they had already sent a professional to explore the storage of granite in Tianyun Mountain, and that person had already informed them when they would arrive, and as soon as they arrived, they saw each other.

This person's name is Wu Liu, nicknamed Five or Six, he is a native of Jiangnan and is good at geological surveying.

This is a very rare type of work in this era, and it is said that five or six of them are all self-taught and self-researched, relying only on the notes of predecessors and their own hard work to achieve this level.

The Inner Pavilion once wanted to invite him in to make an offering, but he politely refused, saying that he preferred to run in the wilderness and was not good at serving in the imperial court.

But this time, the Inner Pavilion told him about the new city in Fengchun City, and when he was invited again, he came happily and didn't think much about it.

In his fifties, sixties/forties, his appearance has typical Jiangnan characteristics, his appearance is delicate, his body is slender, because he has been running in the field for many years, he inevitably has a dark complexion, and his face is covered with traces of wind and frost.

"Do you want to see it now or later?"

After introducing each other, Wu Liu was obviously a little surprised by Xu Wen's youth, but he didn't ask too much and went straight to the point.

"Go now. Xu Wen also answered decisively.

"Let's go. Five or six said.

A group of people also had no opinion, and followed Five or Six up the mountain together.

Tianyun Mountain is very steep, especially this section of Shiju, when Xu Wen and Xu San completed the task, it took a lot of effort to reach Shiju.

At that time, they had no idea how the stone house was built and how the materials were transported up the mountain, but they only learned a little about the mechanism behind the mountain.

Five or six took them on a different path, which was different from the one they had when they first went up the mountain, and it was not the one behind the mountain.

As he walked, he said, "I've been to see the place you mentioned, and it's amazing. But I estimated it, and the carrying capacity is limited. It's okay to build a stone house, but it's definitely not okay to build a city. This is another path I've been trying to find, you see. ”

It's mid-February, and in early spring, Tianyun Mountain is no longer what it was when they last came.

New greenery sprouts among many rocks, and some of them even bloom with different colors of grass and flowers, creating a vibrant scene.

I just went up the mountain, and I just felt relaxed.

But after walking for a while, it became clear that something was wrong.

The greenery quickly faded from thick to light, replaced by grey rocks, and they often had to climb the rocks and climb the walls with great difficulty.

The first one to start panting was Ni Tianyang. Before I met Xu Wen, he was a real deep otaku, and after getting to know him, the amount of activity was a little larger, but it was only activity, there was no systematic exercise at all, and there was no long-term labor, and his physical strength was really not good.

He panted and asked, "This, this kind of place can build roads, can it be transported, can it transport stones?"

Zhu Shi was silent and reached out to support him.

"Why not? Just burn this place down. "Five or six look a little gentle, but it is very easy to walk up the mountain road. He walked in front with a long [smoke and rain red dust] rod, and as he spoke, he pointed it with the pole and circled a large stone wall.

"You can build roads up and down here, and if you burn stones here, you can connect the top and bottom. He pointed as he said, gazing at the mountain wall as if he had seen the road ahead.

"The point is, here, here, here, all granite veins, local materials, local transportation, isn't it convenient?"

"Can't you see it, where are the granite?" Ni Tianyang took advantage of the time to speak, and looked around following the instructions of the fifth or sixth.

"I'll draw you a picture. Five or six had a gentle temper, and this was originally the purpose for him to ask them, hearing Ni Tianyang's words, he nodded seriously and said.

"How do you draw this...... "At this time, they were climbing up without touching the sky or down to the ground, and their whole bodies were supported by two hands and a little ground under their feet.

In this kind of environment, how do you draw a picture in five or six?

Five or six grasped the rock wall with one hand, and pulled out the chisel from the waist with the other hand, and operated with one hand, dangdang chiseled a hole in the mountain wall, nailed the nail, and buckled the belt. Then he tied his body with a belt and fixed himself to the mountain wall.

He completed the whole process with one hand, skillful and smooth, obviously used to it.

Then he freed his hand, took out the paper and pen nailed to the thin wooden board from his backpack, and began to draw with a brush.

Xu Wen was on his right, and he could see it when he turned his head.

The five or six paintings are somewhat similar to a kind of print, with clear lines, no light and shade, and a small amount of perspective, focusing on the relationship between the direction of the mountain rocks and the mountain peaks.

He quickly finished the painting and showed it to them: "See, this piece is all granite." ”

"This is a stone, how does it look like ......," Ni Tianyang said in surprise.

"Like a stream of water? That's right. Five or six said, "Stones, like people, grow together in pieces." When a piece of granite is dug up, it means that there is a patch of granite around. As long as you find this direction, you can figure out where to pick. ”

"Just to find the stone nest?" Zhu Shi suddenly asked.

"That's right!"

Xu Wen was a little surprised.

Before coming, he specialized in the development of ancient geology.

Like other disciplines, ancient geology was entirely empirical, with obscurantist influences such as feng shui and witchcraft.

After all, one of the biggest functions of ancient minerals is alchemy.

The same is true of the way minerals are found, which is largely based on experience and observation.

Minerals are often accompanied by special plants and special landforms, as early as in the "Pipe" it was written: "There is ochre on it, and iron under it." ...... He who has dansha on top has gold under it. He who has a stone on it has copper and gold under it. ”

It is also written in "Youyang Miscellaneous": "There is shallots on the mountain, and gold below." There is ginger on the mountain, and copper and tin below. The mountains have precious stones, and the branches of the trees droop. ”

The composition of minerals will affect the surface and the ecology of plants, which is the theoretical basis for plant prospecting, and the Chinese observed and discovered it very early, but only stopped there, and did not develop a more complete system theory.

But the discovery of ore veins by Five or Six means that he has discovered and understood to a certain extent how they are generated and existed, which is undoubtedly a huge step, and in this regard, he is already ahead of his time.

The people have their own capable people...... Xu Wen sighed in his heart, and heard Ni Tianyang ask: "What does it mean to burn stones?

"Of course. Dig holes in the stone and fill it with charcoal, which can be burned soft and broken, broken and removed. This method is also required for the mining of stone veins. However, the granite is too hard, and it is a bit troublesome to open a hole and burn the stone, so you have to think of a way. Five or six patiently explained.

This is indeed a common means of opening mountains and taking stones in ancient times, and Xu Wen also knows it.

In modern times, more convenient and revolutionary means have been adopted......

He looked up at the endless mountain peaks, imagining the rocks in them, and hesitated.

He didn't notice that Yan Ji, who was not far away from him, was also looking in the same direction as him, and he was also a little hesitant.