Seeing Li Erlin come back with a wooden box, Li Ping'an was puzzled, but he didn't ask what it was, and Li Erlin didn't plan to explain, but just thought about it for a while, and quietly asked Li Ping'an to put it in his small box.

Although he didn't ask Li Ping'an what was in the small box, he knew that Li Ping'an was very concerned about the small box, not only Li Ping'an, but even Jixiang, Xinglong, and Ruyi were very precious.

As soon as Li Ping'an took over, the heavy weight made him guess about the contents of the box, and he couldn't help frowning, thinking that his father was also big-hearted, and this kind of thing actually let him, the child, keep it.

Taking advantage of the fact that no one was paying attention, he put the box in the box, took out the top few pieces of paper, and asked casually: "Dad, I heard that the Taoist who took in the grass before saved Master Wang's life?" ”

Li Erlin nodded, and said in detail what he heard from Master Wang, Li Ping'an smacked his tongue, he never thought that the answer to the question that he couldn't figure out before was actually stained with the light of the grass, and the grass was stained with the long light.

What surprised Li Ping'an even more was that the Taoist master's medical skills were so good, and he cured the whole family of Master Wang, who was infected with the plague, as soon as he made a move.

No wonder they dared to enter the epidemic area alone, and sure enough, the ancient Taoist priests were a god-like group, not only knowing astronomy and geography, but also understanding medicine and chemistry, and some were even proficient in arranging troops to march and fight.

Why didn't I think about asking Cao Ya about the Taoist before, I had to ask Cao Ya if she had learned anything from the Taoist Chief.

He was annoyed, Li Erlin looked at the paper in his hand and asked, "What are you holding in your hand?" ”

"Oh, this, it's a good thing, Dad, you accompany me to find Master Wang, I gave him this good thing, and I should thank him for giving him food along the way."

Afraid that Li Erlin would not believe it, Li Ping'an pulled him aside, pointed to the pattern on the paper and explained endlessly, Li Erlin listened to it with a stunned expression, and looked at Li Ping'an's eyes as if he was looking at a stranger.

"You said you came up with this?"

"Yes!" Li Ping'an replied shamelessly.

"Is this thing reliable? Is it really as amazing as you say? ”

"Maybe, you have to find out if it's reliable, but I can't get it out by me, so I need to give it to Master Wang. But I think that in general, there is no problem, if it is useful, if it is useful, if Lord Wang gives it to Lord Taishou, it must be a great achievement for Lord Taishou, and I think Master Wang is willing to try even if he doesn't believe it anymore. ”

Li Erlin was entangled for a moment, gritted his teeth, and took Li Ping'an to Master Wang's side again.

"Why are you here again? Anything else? ”

"This is my eldest man, called Ping'an, he pondered something and wanted to dedicate it to Master Wang."

Master Wang glanced at Li Ping'an, his gaze moved down, and fell on the paper in Li Ping'an's hand, thought for a while, and nodded, "What is it?" ”

"A convenient tool for threshing, I call it a threshing machine." Li Ping'an presented the drawings, "If you use this tool to threak grain, it will be easier and easier than the way we threh the grain now, and the speed will be faster." ”

Master Wang was immediately interested, took the drawings and observed them carefully, "Tell me in detail." ”

Although Li Ping'an's words about the threshing machine can not increase crop yield, but farming is a big thing, even if it is only about threshing, if it really has the effect he said, it is a sophisticated farm tool, if it is operated well, it is a great achievement for his second brother who is an official.

Li Ping'an pointed to the drawings and repeated what he had just said to Li Erlin, because he had just said it again, so it didn't stumble this time.

"This is a foot threshing machine, you see, this is a foot pedal, step on the foot pedal, this long axis will drive the short axis, thereby driving the big ratchet, the big ratchet will drive the small ratchet, the barrel will rotate, then we just put the rice on the rotating barrel, the hoop on the barrel will knock the grain down into the bucket......"

He had often seen it when he was a child in his previous life, and he had used it, and until the year he died, there were still people in the village who used this traditional foot-operated threshing machine.

In fact, he has long wanted to make a threshing machine, threshing in this era is really threshing, a large and heavy square bucket-shaped threshing box, they hold a handful of rice on the wooden wall of the threshing rice box, laborious and time-consuming. It's just that he was still young before, so he didn't dare to let himself behave too demonically, and the materials he needed couldn't get at all as a flat-headed person.

Needless to say, the government is strictly controlled, and you must register when you buy a pot and a kitchen knife, and you can't buy too much, and if you want to buy a new one, you need to take the old one to be inspected. He couldn't figure out those two gears alone, it looked easy, but in fact he had to make a match, and he didn't know how much time it would take to do the carpentry of his three-legged cat.

Even if Master Wang has never worked in the field, he can roughly imagine from Li Ping'an's words how exquisite this so-called threshing machine is, if it really works, presumably the second brother will definitely be able to go further with this thing.

Suppressing the ecstasy and excitement in his heart, he patiently listened to Li Ping'an's words, and asked some questions, such as why the two ratchets should be one big and one small, whether the use of too many iron tools and the high cost would affect the promotion, and whether there were any places that could be replaced with wood, etc., Li Ping'an also answered one by one.

After solving the problem, Master Wang asked happily: "Ping'an, right, have you learned carpentry?" ”

"No, I just think threshing is too tiring, and I figured it out by myself. To be honest, whether this threshing machine has any effect depends on the effect of manufacturing. Li Ping'an smiled.

Li Erlin was worried that Master Wang would not believe it, so he answered: "Ping'an, this kid has a flexible head when he is young, and he often sneaks to the county, and he doesn't know what to think about. ”

"Don't worry, the so-called hearing is virtual and seeing is believing, I also know it in my heart, whether it is useful or not, I will know if I try it." Although he said so, Master Wang's expectations for this threshing machine are still very high, after all, Li Ping'an is right, and what he is thinking about now is that his second brother has the capital to be promoted with this thing, and he never thought that he would fail.

Immediately, his expression was solemn, "Don't leak this matter for the time being, you can settle down in the next two days, and when I get to the state city to explain it to the second brother, I still need to pick you up to guide one or two." The second brother is not a merciful person, if you are meritorious, you will naturally not be stingy with rewards, nor will you be greedy for your merits. ”

Li Ping'an, who doesn't take credit, doesn't care very much, he is just a commoner, even if the court rewards him, it is just some money, silver, rice and grain, and if you want to achieve a class jump, you can't just offer a threshing machine. He only cares about whether he can get in touch with the Wang family, he has no backer, and in the eyes of the landlord and squire, he is just a rising bird who is casually suppressed and manipulated.

As the saying goes, a good memory is not as good as a bad pen, and in the end, at the request of Master Wang, Li Ping'an once again slowly said what he just said, so that Steward Wang could record it on paper with a pen.

Therefore, Li Ping'an rubbed a meal of white dried rice and bacon at Mr. Wang's place, and he was still sorry in his heart, he knew that it would be good to call auspicious Ruyi together, if they ate white rice and bacon, they would be very happy.

But after thinking about it, what is it to eat, how unambitious, it won't be long before he can let his family eat white rice, dry rice and meat.

He didn't want to be afraid of this anymore, he was afraid of shrinking his hands and feet, he held the thigh of the Wang family!