The two of them carried, the two of them protected left and right, Yun Xiaoshui lay on the rattan chair, and walked among the mountains and forests, and the mine could be seen from afar.

Mining and iron smelting are already in full swing.

Although the iron-making technology in ancient China was not discovered early, it developed rapidly. The iron blade of the Shang Dynasty was forged from meteorite iron with high nickel content. It is to dig a hole in the soil and build it with stones around it, which is called a hearth.

Iron ore and charcoal are placed layer by layer in the hearth, and the natural wind is used to burn, and the carbon monoxide produced by the incomplete combustion of charcoal is used to reduce the iron oxide in the iron ore to iron, and after cooling, the iron is taken out.

This method of iron-making is called block iron-making. Its furnace temperature is about 1000 degrees Celsius, which is far from the melting point of pure iron of 1534 degrees Celsius. However, this also has the experience of carburizing and carburizing steel from block iron.

In the early Warring States period, people created the softening technique of white iron. That is, through long-term heating, the iron carbide in the white iron is decomposed into iron and graphite, and the large cementite is eliminated, which plays a good role in improving the flexibility of iron.

White iron casting farm tools were more common, and although steel weapons appeared from the late Spring and Autumn period, the output was still very low until the Warring States period. As a result, the bronze swords developed by Qin discarding steel weapons were extremely effective on the battlefield.

It turned out that those steel weapons were not tough and very brittle, and when fighting, the weapons were easy to break and bend, far inferior to copper-cast weapons. This should also be a very important reason why Qin Neng rose rapidly and swept the Six Kingdoms!

In the Western Han Dynasty, the 100-year-old steel-making technology increased the number of repeated heating and forging, which not only processed and formed, but also reduced the inclusions, refined and homogenized, and greatly improved the quality of steel.

Later, there was fried steel, that is, the pig iron was fried to a semi-liquid and semi-solid state, stirred, decarburized, and repeatedly hot forged to be beaten into steel products. The invention of frying steel also broke the previous boundary that pig iron could not be converted into wrought iron, so that the two process systems that originally went their own ways could communicate.

Yun Xiaoshui's task is to advance the technology of 100 steelmaking and frying steel to the Qin period, which is now. He taught the two high-tech technologies of the time to those national iron-smelting and steel-making craftsmen in detail, which was refreshing and made the craftsmen all stunned.

It turns out that steel can be exercised like this! It turns out that the prodigy craftsman is so strong!

When the first furnace of 100 steels was used to forge swords to test their hardness and toughness, the artificial "giant stone mortar" invented by Yun Xiaoshui was also put into use.

Branches, leaves, bark, roots, all kinds of vines, shrub branches, as long as they are not too thick or too hard, such as the wood of mulberry and jujube trees, can all be smashed into crumbs, mixed in the mud than thatch, crop straw.

This kind of thing, when building walls and mud in the countryside, it is called "sticky", which is probably equivalent to the primer of traditional Chinese medicine! It can make the mud more sticky, and it is harder after drying, and it is not easy to crush and fall off. When plastering the wall and painting the wall, the effect will be better when using hair in the lime plaster.

Yun Xiaoshui's invention saved crops, straw and thatch, and used to feed livestock and build houses.

The "giant stone mortar" is smashed with a large stone head, as long as it is not too thick, not too hard branches, it can be smashed, and the power to pull up the stone pile comes from the mechanical principle of the lever, which is the same as a human stone throwing machine.

Before a section of the wall is built, brick kilns, lime kilns, and giant stone mortars are lined up on both sides of the inside and outside, no matter how far or near you look, it is quite spectacular!

On this day, Yun Xiaoshui was discussing with Meng Tian about the movement of calligraphy, when suddenly a herald came and reported: "Newspaper - report to the general, a large pack of wolves has poured into the Xida Valley, chasing a small herd of deer and roe deer, which has now filled the narrow entrance to the southwest of the Xida Valley. ”

Yun Xiaoshui knew that the West Valley was connected to the East Valley, and the East Valley was right next to the Big Stone Valley.

"Assemble the cavalry of the middle battalion, heavy weapons, long-range bows and crossbows to fight and kill wolves!"

General Meng Tian gave the order decisively. Yun Xiaoshui hurriedly waved his hand and said, "Kill chickens with a knife?" These hundreds of wolves, we can give up dozens of eliminated old military horses, why bother to mobilize the people? Not to mention wasting armaments and materials, it would not be worth it if it hurt our warriors of Great Qin.

Our Great Qin warriors can only die on the battlefield, how can they die in the wolf's mouth in aggrieved? ”

"What is the master's plan?"

Under the eyes of the battle-hardened officers and soldiers who were not only suspicious, but also a hundred disdainful, Yun Xiaoshui said his plan loudly.

Don't move many troops, don't ask, let the deer and wolves in, and then let the old horses go to the East Great Valley to lure the wolves. As long as a group of old horses ran into the East Great Valley, the deer would follow, and in this way, it would be impossible for the wolves not to follow.

There are two exits from the East Otani, one is connected to the Great Stone Valley, and the other is the entrance to the West Valley. When the wolves had entered Higashi-Otani, they lit large torches at both exits, lined up in several rows, and planted them on the ground, with a barbed army fence behind them, and behind them was a human wall of soldiers with torches in both hands.

After that, there were the ambushed crossbowmen and the hook-scythes, which were prepared. Trapped in this East Great Valley, in a few days, unexpected big changes will occur inside.

First of all, whether it is a wolf or a deer, a horse, or a roe deer, they will die in large numbers, wolves can hunt deer and roe deer, and they can also hunt old horses, but old horses can also kill wolves.

Secondly, the rest of the wolves, deer, roe deer, etc., will rush to the two exits, but they are afraid of fire, and they have fences, and with arrows, they can only die.

Finally, when there are no more wolves or deer to flee to, you can go into the valley and pick up the carcasses of wolves, deer, and roe deer! Because there is no water in this large valley, there is no small pool, gravel, bluestone, and almost no grass is visible, and the trees are sparse small pines and cypresses, and low shrubs.

With the "sleepy" method, you can easily get a lot of game to enrich the military rations!

Yun Xiaoshui, who was far away from the capital, was in the barracks, and it was also in the mine, when he was drinking and eating wolf meat very comfortably, the communication agents of the Wind Chaser faction came, two in a group, and two groups in a row.

The first group reported to Yun Xiaoshui that the wizard Mao Laodao found two warlocks from the rivers and lakes, and when he drew talismans to exorcise evil spirits for the first emperor, he accidentally scorched a few of the first emperor's beards, which annoyed the first emperor, killed the two warlocks, and put the wizard in prison.

The second group came to report the information of the wolf poison flower: half a month later, there was an event of the first emperor sacrificing to the mountain god, Wang Ling, Li Si and Zhao Gao all ordered the wolf poison flower to bring four helpers to pretend to assassinate the first emperor, and let the sorcerer in the prison calculate it in advance and report it to the first emperor desperately.

In this way, the First Emperor was convinced that the wizard still had some real skills when he encountered the Assassins.

"Hehehe...... The plan that these three magnates came up with is not very good! I'm afraid it's not so easy to save the wizard from prison in this way, right? Maybe the five masters and apprentices of the wolf poison flower will be wiped out in this battle! Yun Xiaoshui's analysis hit the nail on the head.

Judging the situation, Yun Xiaoshui thought of a countermeasure, "plan the plan" and "kill two birds with one stone"!

Yun Xiaoshui first wrote down the strategy, and wrote "the plan is the plan" on a roll of silk cloth and handed it to a group; "Killing two birds with one stone" was written on another roll of silk cloth and handed to another group.