Chapter 92

"Sir, Sir?"

"I was thinking about something," Lin Bei came back to his senses: "Zhen Jiu, help Ali get up, no need to kowtow anymore."

After Ali got up from the ground, Lin Bei organized his words: "An Zhongzhi, today you will have people dig a large round pit at the edge of the school. Remember, it must be a round pit."

"How big of a pit, Sir?"

"About ten feet high, and the length can be between twenty to thirty feet."

"Sir, are you planning to dig a pond?" Bian Ji asked doubtfully.

Lin Bei shook his head, recalling the information about biogas digesters. He knew almost nothing about them, only a vague concept. Now he needed to explain this concept and have An Zhongzhi find experts to perfect the biogas digester. Lin Bei was not worried about this, as although this era could not produce guns or cannons, the technology for biogas digesters was not very advanced. He believed it could be done.

"Oh, no, not a pit, but a kiln. Do you know earthen kilns?"

Everyone naturally nodded, including Ali. This was normal, even in modern times, farmers still use dug kilns to store things like sweet potatoes and pumpkins. This kind of farmer's wisdom naturally existed in the Three Kingdoms period.

"Dig it in the shape of a kiln," Lin Bei said again: "But you need to pay attention to some things. This kiln must be airtight and sturdy, with one entrance and one exit."

An Zhongzhi carefully noted down Lin Bei's words and couldn't help but ask: "Sir, isn't the earthen kiln dug underground? It will naturally be airtight, right?"

Lin Bei thought, is that so? After some consideration, he added: "Then dig it so that when you fill it with water, the water won't seep into the soil. Reach that level."

An Zhongzhi's eyes widened: "Sir, that seems quite difficult."

In this era, there was no cement or rubber, and digging an earthen kiln was not the same as firing pottery. It would indeed be challenging to achieve what Lin Bei described. However, as Lin Bei knew, if a glaze layer was applied to the surface of the soil, it could almost prevent water from seeping through. Cui Lan had previously sent Lin Bei some pottery with glaze.

Of course, Lin Bei would not have An Zhongzhi use such materials, as it would make the biogas digester too expensive for ordinary people to afford. For anything to be widely adopted, it must be accessible to the common people. Moreover, biogas digesters were a new invention, and the simpler and easier to use, the better.

So Lin Bei said: "I know it's difficult, but you must overcome it. Remember, use the cheapest and most readily available materials to build the earthen kiln to this level. Have the craftsmen think of ways to do it."

An Zhongzhi's face twisted like a bitter gourd. Building it to this level with the cheapest and most easily found materials was not an easy task.

Lin Bei wasn't done yet, "Is there a blacksmith in the village?"

An Zhongzhi quickly replied: "Sir, there is, but the blacksmith, Wang, is quite old and not very agile. He can only make simple items. Hunters usually buy their hunting knives from Hepu County."

Lin Bei then looked at Zhen Ding. Zhen Ding thought it seemed he was also involved in this matter and said straightforwardly: "Sir, what do you need?"

"I need an item, have someone forge it for me."

"Please specify, Sir."

"About the thickness of your finger, oh, never mind, your finger is too thick. The thickness of the teacher's finger, a five-foot-long iron pipe. The top of the iron pipe should have a small mechanism that can open and close at will." As Lin Bei spoke, he gestured for the teacher to draw the shape of the iron pipe on the ground. Lin Bei emphasized that the iron pipe must be hollow. After seeing that everyone understood, Lin Bei asked: "What do you think the value of such an iron pipe would be?"

Zhen Ding thought carefully: "Sir, the value is not very high, but it may require a high level of skill. Not every blacksmith can make it."

"That's fine, just forge one to see."

Once the first one was made, it could be mass-produced, which would significantly reduce costs and make it easier to replicate.

In fact, Lin Bei wanted to use copper pipes, but considering that copper was called 'red gold' in this era, he settled for iron. Iron rusts more easily than copper and would need to be replaced sooner, but for now, this was the best option.

Seeing that Lin Bei had finished speaking, Bian Fuzi asked curiously: "Sir, you asked An Tingzhang to dig a kiln and Zhen Dian to order an iron pipe. What are you planning to do?"

Lin Bei smiled, feeling the superiority of being thousands of years ahead in technology. In modern times, almost anyone would know what he was planning, but this was the Three Kingdoms era.

"This is a technique from my magic called 'science,' named 'turning waste into treasure,'" Lin Bei said. Instantly, everyone showed great respect, thinking that the Sir was finally using his magic.

Lin Bei continued to deceive them: "This magic turns elephant waste into a good thing called 'biogas.' The kiln An Zhongzhi will dig is called a biogas digester."

An Zhongzhi thought that the task given by the Sir was so important that his expression became enthusiastic: "Sir, rest assured. I will do my best to build this... biogas digester properly."

"Very good." Lin Bei praised him and then looked at Zhen Ding: "The iron pipe you ordered also has a name, called a biogas pipe."

"Sir, I will immediately send a guard to the county to handle this." After saying this, Zhen Ding called a guard and gave detailed instructions, urging the guard to return to the county quickly to avoid delaying the Sir's 'magic.'

Lin Bei was delighted. Adding the title of 'magic' had such an effect, truly beyond his expectations.

PS: Thank you to Feathered Snake, A Long, and Book Friend 1408260 for your support. Also, the tone of this book has been clearly stated in the introduction. There will be elements of contention, but they will not be the main focus. You can consider this book as a farming story set in the Three Kingdoms period.

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