After leaving the compound, Yuan Yun took Xiao Liu directly to the outside of Xudu City. Pen | fun | pavilion www. ｂｉｑｕｇｅ。 info Cao Ang's work efficiency is quite fast, and he has already divided the land that Yuan Yun requested, just around the coal mine that Yuan Yun discovered, where the coal mine is almost bare on the ground, and there is no need for extra mining. Normally, that piece of land is impossible to cultivate, so it is completely a wasteland, and it is quite easy for Cao Ang to find someone to divide it.

After arriving at the destination, Yuan Yun took some homemade tools and began to measure around, although these improvised tools were not very accurate, but it was more than enough to plan a small workshop.

Looking at the black coal under his feet, Yuan Yun suddenly had a bit of a bad taste, if this thing is developed, Xu Du is estimated to become a fog capital soon, I don't know what kind of mood the people of Xu Du felt when they got up every day to face a white haze? Thinking of this, Yuan Yun was happy, this kind of black-bellied joke is estimated that only he can enjoy it alone.

Xiao Liu saw that Yuan Yun was smiling evilly, so he asked curiously, "What funny thing did the lord think of again?" ”

The corners of Yuan Yun's mouth drew a beautiful arc, and then he shook his head and replied: "If the day comes, I will get some anti-smog masks to sell, and it will be a good deal." ”

Xiao Liu's face was black, and he didn't know what Yuan Yun was talking about, but he still memorized it carefully, he didn't understand, but Cao Cao might be able to understand, and he couldn't forget it when he went back to report.

In this way, Yuan Yun took Xiao Liu and other four guards to be busy for three hours, and saw that the sun had begun to turn west, so he was ready to take a detour to Cao Ang's mansion, there were some problems with the account books he read a few days ago, and he took advantage of the time and mood today to deal with it first, and the spring ploughing is now coming to an end, and Cao Ang also has a lot of accounts that need to be settled.

These ancients were really ignorant, and when they put the seeds out, they only calculated them according to the bucket, and finally converted the price of the seeds into coins for unified verification, but at the end of the year, they still used grain to collect taxes, and did not pay attention to the price difference brought about by the season, which is simply a big mistake.

Ordinary people pay taxes honestly, but this kind of account immediately becomes a big hole in some wealthy households. When Yuan Yun was rummaging through the past account books, he had noticed that many big households were taking advantage of this loophole, which caused the entire Xu Capital to lose at least more than thirty percent of its taxes, which if you look at the entire territory controlled by Cao Cao, I don't know how big it is.

There are also those officials who keep records, they do not have a unified standard of bookkeeping, and the performance on the books is very chaotic, so those old officials in the court and the central government rely on these messy records, and half rely on guessing and estimation to complete the tax verification for the whole year, and everyone keeps accounts according to their own habits, resulting in some accounts becoming an existence that needs to be guessed and estimated after the summing up, and the losses caused by this are at least one or two percent more.

On the way back, Yuan Yun repeatedly retrieved the recorded accounts in his mind, then reviewed and calculated them one by one, and then rearranged them, and when he arrived at Cao Ang's mansion, he had basically finished all of them, and he had been sighing in his heart, what kind of anxiety did Cao Ang have when he dealt with the accounts in his own fiefdom in the past?

Although Cao Ang's mansion has the account books of Cao Cao's entire territory, but at present, Yuan Yun only wants to be responsible for Cao Ang's own small piece, so after sitting down next to Cao Ang, it took half an hour to write those accounts neatly on the bamboo slips, although the brush words are miserable, but they are arranged very neatly one by one, and they are also very clear when they are flipped through, and it is estimated that more energy is wasted on understanding Yuan Yun's brush words.

"Mother asked me to invite Brother Yun to come over tomorrow, and specially prepared good wine and food, Qinghe was cured of your illness before, and I also clamored to thank you in person." Cao Ang saw that Yuan Yun had dealt with those accounts, and he was happy to watch them there repeatedly, so he sent out an invitation.

"I'm a poor ghost, don't expect me to bring any good gifts to the door, my food is still from you." Yuan Yun replied casually, and then immediately changed the topic: "I have already planned the foundation for the construction of the workshop, and the craftsmen you have prepared are complete?" ”

After speaking, Yuan Yun peeked at Cao Ang, this guy is still alive now, how can he feel a little sorry for history, but when he thought of Cao Ang blocking an arrow for himself and saving his life, Yuan Yun felt that it was better for this guy to be alive, as for the historical changes to bring this guy back to life, Yuan Yun was ready, that is: Since it is already chaotic, it doesn't matter if it is chaotic, I originally thought that if history was changed, it would be the end of the world, and now it seems that nothing big or difficult happened, The sun still rises, and you still eat and sleep warmly, so it shouldn't matter if you make some cross-era products.

Yes, that's okay! Let the guy named Cao Ang in front of him live well, even if he may be tired, Yuan Yun secretly made a decision in his heart.

Cao Ang couldn't guess that Yuan Yun was deciding his life and death, but immediately asked after hearing about the workshop: "I'm still wondering about this, what are those ghost talismans you asked Shi Shen to send a few days ago?" I showed it to the craftsmen of the workshop, and they all had strange expressions, and they all begged me to come to see you. ”

Yuan Yun finally put down the accounts he had written, and then said with a smile: "This is called the difference between knowing goods and fools. ”

Cao Ang no longer cares about the ridicule of this young man who is several years younger than himself, but feels very warm and caring, and dares to talk to himself like this, it is estimated that there will be no second one in the whole Xu, which makes him cherish it very much.

Laughed evilly twice, Cao Ang instantly grabbed Yuan Yun's back collar, and lifted him up entirely, since he saw Xu Chu do this that day, Cao Ang has tried three or four times, and every time he lifted Yuan Yun like this, he inexplicably had a sense of superiority.

"What are you doing, what are you doing, I said it's not okay? You let me down first. Yuan Yun protested twice angrily.

After Cao Ang put Yuan Yun down with satisfaction, he immediately asked, "Hurry up, what kind of ghost are you painting talismans?" ”

Yuan Yun had already tidied up his collar, and replied angrily: "Those are the blueprints of the house that need bricks, except for the roof, there is no need for wood at all, and now I can't get some materials such as limestone, and I can only build a two-story building at most with bricks alone, but I heard Shi Shen say that there seem to be a lot of materials I need in the Luoyang area, and I will get them back when I have time, and then let you know how powerful the cement is, and now I should be able to meet the bricks of this small workshop." ”

Cao Ang didn't understand what Yuan Yun was saying at all, so he had to sigh and say: "I really don't understand what you're thinking, it's not that there is no wood for you to use, and you can use rammed earth to make walls, what are you doing with these inexplicable things?" ”

Yuan Yun looked at Cao Ang like a fool, and then said: "Wood is not fireproof, and the load-bearing capacity of rammed earth is insufficient. Rammed earth is even worse, in case it is brittled by the fire in the furnace and causes a landslide, it is simply different from being buried alive. ”

Cao Ang finally understood one thing, that is, a house made of bricks has at least one advantage, that is, it is more fireproof than a wooden house, and it is more load-bearing than a rammed earth house. ”

Yuan Yun was stunned, and then said disdainfully: "Isn't it gunpowder?" What's amazing? ”

Cao Ang immediately became interested, and said with a hint of madness: "I prepared twenty stones of gunpowder according to the method you taught, and then did a drill in a valley on the outskirts of Xudu, and the earth-shattering sound made me feel deafening until now. ”

"What?! Twenty stones? You are crazy! Yuan Yun was really taken aback, one stone is equal to one hundred and twenty-five catties, ten stones is one thousand two hundred and fifty catties, and at the same time ignited more than a ton of gunpowder, Cao Ang is simply a frenzied terrorist.

The corners of Cao Ang's mouth still maintained a feverish smile, and that expression was as if he had mastered the heavenly machine. After a while, I saw that his face suddenly twitched, revealing a trace of horror, and then he said slowly: "The next time I do this kind of drill, I still have to stay away, that small valley was almost blown up, if it weren't for many trees blocking it, I'm afraid many people would die." ”

Yuan Yun looked at Cao Ang like a madman, and said with a wry smile: "No wonder the sulfur near Xudu has been sold more expensive than salt recently, and it is estimated that you have all gotten it?" ”

Cao Ang's cheeks twitched again, then he shook his head and smiled: "It's just that the demand has been relatively large recently, and the sulfur near Xudu has been out of stock, and I have already ordered to go down and take out money from my mansion to let people start transporting a large amount of sulfur from the place of origin, and the sulfur in Xudu is estimated to be worthless in the future, so Brother Yun doesn't have to worry too much." ”

Yuan Yun frowned and said, "I'm not worried about this, I'm worried about how much gunpowder you are going to get for some kind of drills?" ”

Cao Ang pondered for a moment, then touched his chin and replied: "The more the merrier, I have already planned, if I put a hundred stones of gunpowder and ignite it at the same time, what will be the effect?" ”

This time it was Yuan Yun's turn to twitch his cheeks, where was Cao Ang, who was modest and cautious before? The guy in front of him is like the crazy doctor in those movies, the only difference is that this guy doesn't have a head of pale messy hair.

"I'm teasing you, you really think I'm going to make so much waste, although the ingredients of gunpowder are not expensive, but they are not cheap, this time I consumed twenty stones at once, I already regret it, how can I get a hundred stones, haha." After Cao Ang finished speaking, he had already returned to his low side, and then continued to review the official documents.

Yuan Yun rolled his eyes, cursed a few times, then got up to say goodbye, ready to go home, those Yuan clansmen came during the day, it is estimated that the two sisters should also deal with it, and now go back to deal with the remaining elders.

In addition, Cao Ang's large-scale production of gunpowder made Yuan Yun immediately think of a way to make money, out of the door of Cao Ang's study, looked at the sky, it was about to enter May, and the weather was gradually getting warmer, Cao Ang would definitely hoard a lot of saltpeter when making gunpowder, and when it was hot in summer, he would have to count on these saltpeters to make money.