For the manufacture of the new chariot of the loess series, Shen Nong alone will definitely not be able to complete it, and it is necessary to let the warehouse come over to take a hand, there is a drawing about the production of the trebuchet, Shen Nong has already drawn it with a brush before, as long as it is handed over to them, with the production of the map, the four people can help Shen Nong make some of the parts needed to assemble the trebuchet by hand, and the time can also be used to make the trebuchet on the assembly line.

It was relatively easy to make a trebuchet, because Shen Nong didn't ask for how complicated the process was, so he tried to conceive in terms of simple structure, and strive to make a durable and rough trebuchet.

First of all, you have to have two equal shaped wooden triangles that act as a fixed base, and then tie the three corners of these two triangles together with three pieces of wood to form a triangular base that can stand on the ground, and the height of this triangular base must be high, or more than four meters, so that the first step is completed.

The second step is to make an object in the shape of a soup spoon out of wood, and wrap the spoon tightly with polished hides to better stabilize the stones placed on it. Then the large wooden spoon is tied together with the long log that is the main stem of the stone throwing, and a hole is dug at the junction that leads to both ends, and the wood is inserted as a complete fixation, so that the second step is completed.

The main pole is about three or four meters long, just matching the base, if you want to make a larger trebuchet, then the size of the base and the main pole have to be increased in the same way.

The transverse log at the top of the triangular base is used as a connecting pole, and this wood cannot be sealed, but must have the ability to rotate flexibly in order to achieve the rudimentary shape of the trebuchet.

Once the main pole is connected to the log, the structure of a trebuchet is truly formed, and two more steps are needed to make it into a real trebuchet.

The first step is to make a 'several' shaped door with three pieces of wood strong enough to stick in front of the triangular base, so as to ensure that when the main rod of the trebuchet bounces from 0 to 90 degrees, it will hit the door, so that it will not fall forward, causing the dilemma of not being able to throw the stone high.

The second step is to use tough and elastic animal tendons to firmly tie the main rod and the door, because the door is also fixed on the ground, if you pull the main rod in the opposite direction from the door when both are tied to the animal tendons, there will be a pull between the main rod and the door because of your pulling, the greater your strength, the more the pull will increase.

When the main rod is pulled to 0 degrees and is parallel to the ground, if you let go of the hand at this time, the previous pull will be converted into elastic force, and the main rod will bounce towards the door at a very fast speed, until it hits the door at 90 degrees vertically, and the momentum of the main bar will stop.

This whole step is the rubble, which can also be seen as the transformation process from pulling force to elastic force.

In fact, the reason why Shen Nong wanted to design the trebuchet was not just to configure a Loess No. 3, this is just one of the many uses of the trebuchet, according to Shen Nong's original idea, he planned to double the width of the three tree walls, and then configure the collection of spear launchers and trebuchets to the tree walls, so as to greatly enhance the defense capability of the Huangqiu tribe.

The so-called thickening of the tree wall is relatively simple, that is, on the basis of the existing tree wall, two rows of trees of the same height are inserted outward, which is closely attached to the previous row of tree walls, requiring seamless connection.

In this way, the people of the Huangqiu tribe only need to cut off all the branches that grow on the tree wall, and then sawn the top of the tree wall and polish it flat, so that they can walk freely above the tree wall, just like the ancient city wall.

In addition to threatening those enemies who came from afar, these defensive measures can also deter many scattered tribes living around the ancestral land of the Huangqiu tribe in the future, preventing them from having any crooked brains, which is exactly a matter of killing two birds with one stone.

At noon, everyone who went out to work came back, it can be said that the life law of the Huangqiu tribe is still very scientific, the sunrise and sunset rest, the middle lunch break can also go back to the tribe to eat some food to replenish physical strength, life pressure is not too great.

"Wu, if you take over a scattered tribe and build a wall for them, you are too good to those scattered tribes. Chi leisurely walked up to Shen Nong and said with a smile.

Since there were eel slaves, the people in the Huangqiu tribe didn't need to work anymore, so the expressions of these Huangqiu people who came back were very relaxed, on the other hand, those eel slaves were either tired with sweat, or tired with pale faces and trembling hands.

Among these eel slaves, there are women, men, old people, and children of eight or nine years old, which look very messy, but Shen Nong doesn't care what they are or what age they are, since your eel tribe took the initiative to capture the people of my tribe at the beginning, and forced our Huangqiu tribe to lose so many clansmen after the first war with your eel tribe, then these losses must be borne by you surviving eel slaves.

Whether it is an adult or a child, a man or a woman, you have to work for the Huangqiu tribe all the time.

"It's not good for them, I'm thinking about the scale of our Huangqiu tribe in the future. Shen Nong said indifferently.

"Scale?"

"Don't look at us Huangqiu is just a tribe now, but with everyone's joint efforts, this will become Huangqiu Village, Huangqiu City, and even Huangqiu Country in the future, everything we do now is just a part of the city's construction. Shen Nong said confidently.

Of course, Chi didn't understand what Shen Nong meant by this, the concept of a city-state was too far away for him.

These tribal-based primitive people still follow the pattern of blood clans, and it will still be a little difficult for them to live together peacefully with the people of other tribes.

That's why Shen Nong chose to use the second district to receive those scattered tribesmen, keeping a wall of distance between their living area and the ancestral land of the Huangqiu tribe.

In this way, it can not only have the effect of isolating the scattered tribes, but also allow the scattered tribes to enter the rule and management of the Huangqiu tribe, which is not a loss, and when the Huangqiu tribe establishes more and more areas in the future, Shen Nong can also set up a blank area as a market area, so that everyone can trade goods and resources here.

The prospects are endless.