Xie Zuo came back to his senses from his conjecture, thought about it, looked at Zhan Yu and said seriously:

"Brother Zhan knows the soldiers, and he is brave and martial, the younger brother has a reluctant request, and I hope that Brother Zhan will not refuse!"

Zhan Bird didn't dare to say when he heard this: "Poultry is just a pawn's ear, how dare you say that you know the soldiers?" Don't you break Zhan! What does the young master command, but that is, the fowl will do his best! ”

Xie Zuo scratched his eyebrows: "My personal scholar Xie Qingyi, well, it's that big boy, who has some courage, and I hope that Brother Zhan will give more guidance in his spare time." ”

Xie Zuo has not yet reached the point where he has directly explained his thoughts to the exhibition and the birds. After all, the first acquaintance, the unknown heart; Second, his plan is to have an armed force, to put it bluntly, it is a private soldier, this matter is a big taboo regardless of which dynasty or generation, a thing that accidentally leaks the news is to lose his head, how dare he announce it so casually! It is always necessary to observe, observe, brew and brew.

As for mentioning Xie Qingyi, it's just by the way. In fact, Xie Zuo has always been strange, it is said that Xie Qingyi's martial arts value is not low, even if he only gets one-tenth of Lu Bu's inheritance, not to mention that he is compared to the battlefield generals, at least the ability of the warriors in the army should have! But judging from the realization during this period of time, the big man can at most deal with two or three ruffians, which is far lower than the expectation in his heart. After thinking about it, except for the reason that I don't know how to hold back martial arts, I really can't think of any other reason!

If Zhan Yu is willing to guide Xie Qingyi, needless to say, the benefits he will get, on the other hand, the two have unconsciously established a master-apprentice relationship. After all, Zhan Poultry helps himself, in fact, to repay the kindness, kindness is always a consumable, use a little less. But if it's not the same with affection, the more time passes, the more mellow it becomes. As long as you get along with each other, even if you do some disrespectful things in the future, you must not stand by and watch.

Listening to Xie Zuo's request, Zhan Yu smiled: "Tsing Yi is a son with a physique that is different from ordinary people, and he is indeed a good martial artist. Now that the time is short, practice well in the future, and you may not be a fierce general! Looking at this son, my heart is also very comforted, even if the young master does not say it, the bird will definitely teach it carefully, and please rest assured that the young master. ”

Xie Zuo nodded with satisfaction:

"In that case, I won't bother you with the practice, so don't leave it at that!"

Bidding farewell to the exhibition birds, Xie Zuo swayed back home. On the way down the mountain, I happened to meet the training team grinning back up the mountain. Looking at the young men who ran out of breath, I couldn't help but sigh a little.

The oldest of them was no more than thirty, and the youngest was sixteen or seventeen. But except for Xie Qingyi, who is considered to be talented, the rest of the people are all thin and weak, just looking at the ribs clearly emerging under their ribs, you can imagine how malnourished these young and middle-aged people are. And this is still based on the fact that the head of the Xie family did not deliberately treat his subordinates. By extension, in the whole era, those who can get rid of the fate of starvation are probably only landlords and bureaucrats like themselves!

Just casually sighed, Xie Zuo withdrew his gaze. He is not a sage, it is okay to sigh and moan without illness occasionally, if he really worries about the world like Fan Sheng, he is not so great sentiment. Besides, "if you are good, you will help the world, and if you are poor, you will be good to yourself", and you will pay off your debts, where will you have the ambition to help the world?

Wandering back to Xie's mansion, Xie Zuo folded his fingers and calculated. The task of hooking up with the Qin family was handed over to Chen You, and the old housekeeper was worried about all the preparations, and the poultry trainer Ding was busy, leaving him with nothing to do for a while. Estimating the time, there is still a short time before the next cooldown of the Star Map Mission, as for going back to sleep...... It seems that he is already the last person to get up in the whole house, and if he goes to sleep again this time, will he be too faceless and skinless?

Xie Zuo shook his head and decided to do something "meaningful".

He wandered back to his room, sat down at his desk, spread out a piece of wood five fingers wide and two feet long, took out a brush, soaked the tip of his tongue in the end of the pen, and pondered for a long time.

After pondering for a moment, Xie Zuoti wrote the two big crooked characters "gunpowder" on the wooden slip.

Well, it's time to plan for the future. What does it rely on to travel back to ancient times to show your skills? Isn't it technology that is ahead of the time and space for an unknown number of years? Whether science and technology can prosper the country and rejuvenate the country Xie Zuo doesn't care, at least improve the situation in which he is located, it shouldn't be a big problem, right?

Gunpowder is the simplest, and it is also the favorite of the people, and the mantra of one sulfur, two nitrate and three charcoal is known to everyone. Charcoal is very common, at least when you walk around the kitchen, you can see a lot of people piled up in the corner of the kitchen. Saltpeter is not difficult to find, and when the weather is drier, go to the corner of the latrine to scrape, Xie Zuo did not see this thing in his hometown when he was a child. But where to find the sulfur? Xie Zuo is not an ore professional, even if there is a ready-made sulfur ore in front of him, he may not be able to recognize it, not to mention that the name of "sulfur" in this era is definitely different, which is a bit tricky.

Xie Zuo drew a question mark behind "gunpowder". Putting aside those that can't be done are a habit that has been summed up in decades of exam-oriented education.

Seeing the ink on the wooden slip, Xie Zuo wrote down the word "papermaking" again.

Papermaking is a great invention of the Chinese people, and Cai Lun of the Eastern Han Dynasty has added a strong touch to papermaking. In Xie Zuo's era, there was already paper, called Jibei paper. It's just that the raw materials are silk and cloth, which are expensive to build, and time-consuming, so the output is very low, usually only the wealthy families with strong financial resources dare to open up, and like the Xie family, they are good eunuchs, and they only dare to use a small amount on important letters.

Xie Zuo knew that Caihou paper was made of bark, rags, fishing nets, etc., and in terms of raw material cost alone, it was much stronger than Jibei paper. But the problem is that he doesn't know how to make paper at all! This is not a matter of stuffing several raw materials together, chopping and chopping can be conjured up by itself, at least a series of processes, means, and other auxiliary materials are required. Just by opening his brain, he can reproduce the Caihou paper that has crystallized and condensed hundreds of years of wisdom, isn't it too whimsical?

A cross was drawn next to "Paper". After papermaking, printing is usually followed, so Xie Zuo also took the opportunity to mark "printing".

Printing is usually divided into engraving printing and letterpress printing, as the name suggests, one is a fixed template, and the other is a single movable type template. If you want to say that the technical content should not be high, the left and right are just square words engraved backwards, and it is not difficult to go anywhere. But after thinking about it for a while, Xie Zuo also gave the "printing" to the fork.

The reason is simple, I haven't even made paper, so what's the point of tossing out the printing press? Can't you print bamboo and wooden boards? Isn't that a joke!

Next, Xie Zuo wrote down three things in a row: "soap", "distilled spirit", and "perfume".

Saponification reaction is a truth that every modern person who has studied chemistry in middle school knows. Oils and caustic soda react to obtain higher fatty acids and glycerol, and higher fatty acids only need to be cooled and solidified with salt to become soap. As for distilled spirits, it is easier to say, simply distilling the existing low-alcohol liquor, and collecting the liquid after cooling and solidification is high-strength liquor. As for perfume, to put it bluntly, it is a mixture of spices and alcohol, as long as the distillation process meets the standard and the alcohol of higher purity is obtained, perfume will naturally not be a problem. In other words, in the time-traveling novels that Xie Zuo has read, it seems that half of them have done this.

However, even these three simple things, when you think about it, don't seem so easy.