But he said that although Lao Shi felt that Hua Xue was so confident, it might be a bit of a surprise, but he felt that Hua Xue was the kind of person with low eyes, and he thought that he had seen a few bridges, so he thought he knew how to repair them.

So he moved his heart, starting with the selection of stones, he wanted to make Hua Xue a big ugly.

Based on his years of experience as a stonemason, he brought Hua Xue these things, which were not suitable for building bridges at all, as long as Hua Xue began to draw according to the stone, then Hua Xue's design drawings had no value from the beginning.

Originally, it was impossible for the closed-door scholars of this era to distinguish which rocks were suitable for building bridges and which were not, but they could not stand the education that Hua Xue received in later generations, and there was a course "Nature", in which a section was dedicated to explaining the differences between various rocks.

The Museum of the Interstellar Age has a variety of different rock samples. Needless to say, some of the most dense rocks that are almost impossible to occur on the earth are also in museums.

Even if Hua Xue doesn't want to understand, in that interstellar era with special education methods, she can't do it at all.

If it weren't for the "Nature" course in the interstellar era, which only cares about universal knowledge that is universally applicable to the universe, and does not dabble in social and humanities, Hua Xue would be more proficient in the astronomy and geography of the primitive planet, and would not be as superficial as it is now. I don't even know the exact time of Xiaoice River, and I have to rely on the historical data in the system.

Lao Shi was very surprised that Hua Xue could see through his careful thoughts. However, he would not believe that Hua Xue could really discern the material of these stones. He only thought that Hua Xue had guessed his psychology and knew that he would use such a small means. After all, a scholar, these intrigues must be more skilled than him as a stonemason, otherwise how could he deceive Fuzun?

Lao Shi denied it: "Boy, what did you say? What's wrong with this good stone? ”

His words are still traps. Usually people don't understand the classification of stone, and the way they can think of is to use a hammer to crack the stone, so that the cracked stone naturally cannot be used to build bridges. When he said this, he wanted to mislead Hua Xue in this direction.

Hua Xue squatted down, stretched out her hand to flick the stone chips, and pointed at them one by one: "This, I call it 'shale'." ”

With a casual break, Hua Xue broke the shale, and then said: "Shale is very common in our water towns, and you can basically find it as soon as the silt at the bottom of the river is removed." This thing is fragile and weatherable, and it is obviously not suitable for building bridges. ”

Lao Shi is not too strange that Hua Xue can recognize shale, this difficulty is the lowest, but Hua Xue broke the shale with his bare hands, or made him confused, this thing is fragile, I know, but it's not so fragile, right?

"Well, this stone flake is so flat and hard, do you think I'm most likely to pick it?" Hua Xue took one of the most regular stone chips in her hand and asked.

However, without waiting for Lao Shi to reply, Hua Xue said again: "Actually, you shouldn't use this thing to test the scholars." ”

Hua Xue didn't care if Lao Shiming didn't understand, and continued: "I call this 'slate', which can be used to make inkstones, so people who read books basically know it. It's flat, hard, and hard-wearing, and it looks like it's just right, but I guess you'll be able to get it that thick. It's not half a foot thick, can it really be used to repair the bridge? This kind of layered stone, each layer of individual load-bearing, strictly speaking, is not strong, not suitable for bridge construction. ”

Lao Shijing Hua Xue also understood that the secret way was wrong.

Hua Xue pointed to the pieces of stone on the ground, divided them into categories, gave Lao Shi a popular science, and finally said the last piece.

"This one is for burning lime, and I call it 'limestone'. To be honest, if there is really no good stone, this thing can barely be used, after all, this thing is easy to get, if nothing else. And there is another way to burn the lime. However, this thing is still not hard enough, so it is not the most suitable. ”

Hua Xue looked at Lao Shi and concluded: "It's hard for you to get me so many strange stone chips in such a short period of time." It's just probably because granite is too hard compared to these, so you're worried that I can try it out, so the granite that I use most commonly used to build bridges in Jiangnan, you didn't get me a stone chip. But don't you take a look, after all, this government is the face of Suzhou, even if you are thrifty, you won't cut corners to the point that you can't afford to use granite, right? Such a conspicuous contrast, even if you don't get me a stone chip, I can find it myself, right? ”

Lao Shi's face flushed, and he made a careful look, snorted, and said, "Oh, where did Mr. Xiao say it, Xiao Lao'er is negligent." ”

As he spoke, he took out a few stone chips from his bag, including granite.

Lao Shi argued: "This is really a little old man's negligence, these pieces actually fell into the bag." Mr. Little, please forgive me. ”

Lao Shi saw that Hua Xue's classification of stones was actually like a treasure, and he was more skilled than a stonemason, so he put away his contempt. Although there are many things that Hua Xue said that he didn't understand, at least the characteristics of each stone, this kid actually said it right. As a simple craftsman, Lao Shi found that Hua Xue was not completely fooling people, but had some skills, and in line with his respect for the scholars, he changed his words to no longer call the boy boy, but learned to lead the way before, and called him "Little Mister".

Hua Xue saw that he could bend and stretch, but he had no face and no skin, and for these craftsmen who relied on craftsmanship to eat, they couldn't pull down their faces to squeeze him. With a wave of his hand, he quickly dug a small ditch so that he could design the bridge.

Lao Shi is too smart, and when he digs a ditch, he is not real, he does not dig straight, but digs a "river" with different widths and widths.

Hua Xue looked at her face, this guy has too many eyes.

However, this kind of problem is difficult to deal with.

The first site for bridge repair is selected. Obviously there is a narrow place, if you choose a wide place, not to mention the time and effort, the wider the bridge, the heavier the burden of the bridge, and the higher the requirements for the structure. In addition to the width and narrowness, the difference between the two sides of the strait and the quality of the soil are also issues that must be considered in many cases.

For Hua Xue, the first-line craftsmen of the soil can distinguish it by themselves; The drop can be dug low or made up with structures, which is not a big problem. Basically, the main problems that limited his construction of bridges were the width of the river and the specifications of the materials.

Based on the width of the ditch for the width of the river channel, the size of the stone chips to determine the material specifications, Hua Xue calculated, and designed the structure of a single-hole stone bridge, and relying on the projection of the system, Shengsheng drew a structural diagram with acceptable accuracy with a brush, and marked the details with lowercase numbers.