"Your Excellency, Your Excellency?"

"I'm thinking about something." Lin Bei came back to his senses: "Zhen Jiu, let Ah Li get up, don't kowtow." ”

When Ah Li got up from the ground, Lin Bei organized the language: "An Zhongzhi, today you asked someone to dig a big round pit at the edge of the school, remember, it must be a round pit." ”

"How big a pit? My lord? ”

"It's one zhang high, and the length can be two to three zhang."

"My lord, don't you want to dig a pond?" Bian Ji asked suspiciously.

Lin Bei shook his head, recalling the information of the biogas digester in his mind, he knew little about the biogas digester, but he had a vague concept, he needed to talk about this concept now, and then An Zhongzhi would look for someone to improve the biogas digester, Lin Bei was not worried about this, although guns could not be made in this era, but the technical content of the biogas digester was not high, Lin Bei thought that he could get it.

"Oh no, it's not a pit, it's a kiln, do you know the earthen kiln?"

Everyone nodded naturally, even Ah Li, this is normal, even in modern times, farmers have the habit of digging kilns to store things, such as sweet potato kilns, pumpkin kilns, etc., this kind of farmer's wisdom is naturally there during the Three Kingdoms period.

"Dig into a kiln." Lin Bei said again: "But you need to pay attention to some things, this kiln must be airtight, but also strong, one inlet and one outlet." ”

An Zhongzhi carefully wrote down Lin Bei's words, and couldn't help asking: "My lord, isn't this earthen kiln dug in the ground?" Airtight, that's for sure, right? ”

Did Lin Beixin say so? After thinking about it, he said: "Then dig until you put water in it, but the water will not seep into the soil, and you can achieve this kind of process." ”

At this time, An Zhongzhi's eyes widened: "My lord, this seems to be a little difficult." ”

In this era, there is no cement, no rubber, and digging a kiln is not firing pottery, it is indeed difficult to get what Lin Bei said, of course, it is only a little difficult, because as far as Lin Bei knows, as long as the glaze layer is coated on the surface of the soil layer, it can almost be impermeable.

Of course, Lin Bei will definitely not let An Zhongzhi use this kind of thing, because once it is used, the cost of the biogas digester will be high, not ordinary people can afford to use it, anything wants to be popularized, ordinary people are the foundation of communication, not to mention that the biogas digester is a new thing, the simpler and easier to get started, the better.

So Lin Bei said: "I naturally know that there are some difficulties, but you can overcome them, remember, use the cheapest and easiest things to find to repair the earthen kiln to this level, and let those craftsmen think of more ways." ”

An Zhong's straight face wrinkled like a bitter gourd, not to mention cultivating like this, he had to use the cheapest and easiest thing to find to repair, this errand is not easy to do.

Lin Bei is not finished, "Is there a blacksmith in the township?" ”

An Zhongzhi hurriedly said: "My lord, there are some, but the blacksmith Wang is a little old, and his hands and feet are not very dexterous, but he can make some simple things, such as the hunting knives used by hunters are bought in Hepu County." ”

Lin Bei looked at Zhen Ding, and Zhen Dingxin said that it seemed that this matter was also on his own, so he simply said: "What do you command?" ”

"I need something, you have someone to build it with me."

"Your Excellency, please speak."

"Touch the thickness of your fingers, oh, forget it, your fingers are too thick, Master's fingers, like the thickness of Master's fingers, five feet long, there must be a small mechanism at the top of the iron pipe, which can be opened and closed at will." Lin Bei said while motioning to the master to draw the appearance of the iron pipe on the ground, Lin Bei also emphasized that the iron pipe must be hollow, and finally saw that everyone understood, Lin Bei asked: "How much do you think an iron pipe like this is worth?" ”

Zhen Ding thought about it carefully: "My lord, the value is not very high, but it may require a craftsman's high skills, and I am afraid that not any blacksmith can make it." ”

"It's okay, let's build one and take a look."

As long as there is the first one, then it can be mass-produced, the cost of mass production will be much reduced, and the imitation is very simple.

In fact, this kind of pipe Lin Bei wanted to use copper pipes, but considering that copper was called red gold in this era, he retreated to the second place, and first used iron to build, iron is easier to rust than copper, and it will not take long to replace it again, but for the time being, it can only be like this.

Seeing that Lin Bei had finished speaking, Master Bian asked curiously: "My lord, you asked An Tingchang to dig the kiln, and asked the shopkeeper Zhen to order iron pipes, what is this going to do?" ”

Lin Bei smiled, and said in his heart that it feels really good to be thousands of years ahead of science and technology, and there is a sense of superiority in IQ, and those words just now are put aside in modern times, and almost everyone can know what to do, but this is the Three Kingdoms.

"This is one of my methods called 'Science', called Turning Waste into Treasure." Lin Bei said this, and suddenly, everyone was in awe, and said in their hearts that the adults had finally cast the demon spell.

Lin Bei continued to flicker: "My spell is to turn the elephant's filth into a good thing called 'biogas', and the kiln that An Zhongzhi wants to dig is called a biogas tank. ”

An Zhongzhi said that the task given to him by the adults was so important, and his expression suddenly became excited: "Don't worry, my lord, Zhongzhi will do his best to build this biogas digester properly." ”

"Good." Lin Bei praised and looked at Zhen Ding again: "The pipe you ordered also has a name, called a biogas pipe." ”

"My lord, I'll immediately call the guards to the county to handle this." After speaking, Zhen Ding called another guard and told him carefully, asking the guard to return to the county as soon as possible, so as not to delay the adults to perform the 'demon law' in the future.

The joy in Lin Bei's heart, coupled with the title of 'Demon Law', actually has such an effect, it is really unexpected by Lin Bei.

PS: Thank you for the feathered snake, Ah Long, book friend 1408260 for the reward, in addition, the tone of this book has been made clear in the introduction, there must be a plot for hegemony, but there must not be a lot, you can take this book as the farming text of the Three Kingdoms.