Chapter 115

Mohist experimental field.

Four Mohist children surrounded in a circle. In the middle was an iron bar about a foot long. The bottom of the iron bar was a cylinder one and a half feet long and half feet in diameter. The bottom of the cylinder seemed to be obliquely cut off by a sharp tool, leaving a sharp head.

This is a common tool for digging wells and raising soil in later rural areas in the 1980s. Merton drew the drawings, which were easily made by skilled craftsmen in Mojia village.

Mo Da holds two thick wooden sticks in his hands, and the two ends of the thick hemp rope are tied in the middle of the stick. The hemp rope entangled the iron rod again and again until it resisted the wooden rod. It was just right to divide the wooden rod into four and a half sections, each in one direction. A Mohist child held one end, and a simple well drilling tool had been completed.

"Hey!"

Under the command of Mohist University, the four Mohist children threw the tip of the cylinder to the already wet ground with the help of wooden sticks. They made great efforts again and again to fill the wet soil into the cylinder. Each time they raised the cylinder, they could always bring out a cylinder of soil.

Soon, a Zhang long iron bar disappeared into the ground at a speed visible to the naked eye. When the iron bar didn't reach the chest height, Mo Da picked up another Zhang long iron bar and connected it. The steps of pressing down and lifting soil were repeated again.

"Water out!"

In ancient times, the groundwater level was very high, even now it was extremely dry. When the first iron bar was completely submerged, the soil raised again had a thin mud state, which was a sign of water coming out.

The water has a certain impact on soil lifting, and the hardness of the soil is much softer. Soon, the second iron rod did not enter the ground, and the third iron rod was connected again.

It was not until the third iron rod completely disappeared into the ground that the well drilling work gradually came to an end. A deep well three feet deep had been built in just half an hour.

Looking at the drilling speed of Mojia village, Fang Xuanling and Li Shimin were also stunned. It was not easy to drill a well in ancient times.

A good well needs to dig soil first, and then dig a slope channel from the side to lead to the underground. It can't be too deep. It's easy to lack oxygen. Secondly, the water level in this era is very high, so it's impossible to dig soil from under the water.

After the water comes out, reinforce the shaft wall and carefully fill the channel of the well. A well can't be completed in three or five days. The well in front of us should be dug in half an hour.

"That's it?" Li Shimin walked to the wellhead in person, regardless of the soil on the ground. Looking at the wellhead only half a foot wide, he couldn't help frowning. The well was a little small and it was impossible to put the bucket in.

Merton looked at the newly drilled wellhead, nodded with satisfaction and said, "Your Majesty, this is only the first step. Next, we need to wash the well."

"Wash the well?" Fang Jun and Fang Xuanling stared at Merton dumbfounded. They have heard of washing hands, bathing and clothes, but how to wash a well underground? As for Li Shimin, he has long been used to the new words that Merton jumps out of his mouth from time to time.

"Uncle Fang doesn't know. There is a lot of soil in the water now. If you don't clean up these soil in time, it will block the water hole under the well, which is not conducive to water out." under Merton's explanation, the three people suddenly realized.

"Then how can we get these muddy water out? Such a small wellhead can't put a bucket at all." Fang Jun asked Li Shimin the question for a long time.

Merton smiled mysteriously, "this is the top priority of this experiment. Mojia village will use a new tool to draw water from the wellhead until the water in the well becomes clear."

In the curious eyes of the three people, Mo Da quickly built the wellhead with green bricks. Two Mohist children carried two and a half feet of iron pipe, and the other two carried an iron guy with a long handle and strange appearance.

If someone in later generations is here, they will recognize that this is the most common water intake tool - well killing, which has been eliminated in the 1980s and 1990s.

Put the two foot long iron pipe into the well, connect the upper end with the bottom of the kill well, simply seal it with soil, and then firmly fix it on the ground with a wooden wedge. A kill well has been completed.

"This can get out of the water?" Fang Xuanling couldn't understand what Merton did.

"The last step is needed." Merton took a gourd ladle from Mo Da's hand and poured the prepared water into the wellhead.

Fang Jun stroked his sleeve, grabbed the well killing handle and pressed it one by one. This guy is powerful and powerful. This job is just suitable for him.

Two or three times, under the regular pressure of Fang Jun, a large amount of muddy water was discharged from the water outlet of the kill well, gushing along the gullies sorted out in advance in Mojia village and flowing to the hungry land.

"It's done!" Merton smiled with satisfaction.

Looking at the water mixed with yellow mud, Li Shimin and Fang Xuanling didn't dislike it at all. They reached out and took a handful of yellow mud water. Looking at and feeling the cold water, their ecstasy could no longer be restrained.

Yes, this method is absolutely feasible!

All the steps of Merton are unreservedly displayed in front of them. It is convenient to drill a well. The material used for well killing is iron, which is nothing more than a little more iron.

And it uses manpower. For farmers, the most important thing is strength. As long as they can eat enough, it is worth the effort.

"A kill well can irrigate about one mu of land. If you add water diversion tools such as bamboo pipes and copper pipes, you can only meet the water needs of two mu of land. If you drill more wells, a family can ensure a bumper harvest of five or six mu of land every year as long as it is not lazy." Merton said confidently.

"Six Mu!" Li Shimin laughed with great joy. It must be good farmland that gives priority to drilling wells. If the family can have six mu of farmland to ensure harvest in drought and flood, it is that they can live frugally in disaster years.

The most terrible thing in the disaster year is that there is no harvest, so that people can't live.

"In a few years, when the experimental field of Mojia village has developed improved varieties with a yield of six cattles per mu, the people of a family will be able to survive in abundance by relying on six acres of good fields." Merton said proudly, pointing to the experimental field of Mojia village.

"Good!"

Li Shimin and Fang Xuanling were so excited that they couldn't help themselves. If each household could be self-sufficient and hit three or four thousand kilograms of grain every year, unless there was a disaster of force majeure, the prosperous age of the Tang Dynasty would be around the corner.

Fang Xuanling looked at Merton with appreciation, and then looked at his son who was working hard to press the water. She couldn't help but sigh. It was people who were more popular than people.

Room 2 was speechless for a while. There were indeed many surprises with Merton, but the biggest disadvantage was that a child from another family was in front of him, and his sense of existence was almost zero.