A journey of dozens of miles was nothing to these horses, but in just half an hour, Cao Liang and his party had arrived at the Cao family farm.

They walked along the embankment of Luoshui. The embankment of Luoshui was actually a relatively wide road. When they first entered the farm, Cao Liang saw at a glance that two keel waterwheels had been built and put into use.

Several farmers stepped on the pedals hard, and the water from the Luo River was drawn out by the keel waterwheel, and flowed into the farmland.

What water means to crops is something that every farmer knows very well. In an era when people basically rely on the sky for food, if God sprinkles a piece of sweet rain, it is a great gift to farmers.

But the years with good weather are limited after all. If there is a severe drought for months, it means that the crops in the fields will not be harvested.

Although Luoshui has abundant water, the river is low and the land is high, so it is impossible to transport many tons of water only by manual transportation.

But the keel waterwheel is different. As long as two people keep stepping on the pedals of the waterwheel, the river water can be drawn up continuously. The efficiency is more than a hundred times higher than manual transportation. If more keel waterwheels are built,

Thousands of acres of land in the Cao family farm can be transformed into high-quality irrigated land.

Water means a good harvest. No wonder these farmers have happy smiles on their faces.

Technology is the primary productive force. This is true. A few keel waterwheels can change the production efficiency of the entire Cao family farm. If the keel waterwheels were extended to the entire Wei State, even the fields suitable for the use of keel waterwheels would be affected.

If it were only 1%, the scale of increase in grain production would be unprecedentedly huge.

Unfortunately, due to the inaction of those in power, Ma Jun's inventions and creations could only be used in certain specific places, which did not contribute much to improving the productivity of the entire society.

Seeing the arrival of Cao Liang and others, the steward of the farm came up to them from a distance, smiling broadly and praising the keel waterwheel.

Cao Liang briefly asked about Ma Jun's situation and immediately rushed to the construction site.

The keel waterwheel was something Cao Liang picked up casually, but what he really focused on was the construction of the counterweight catapult. He traveled to the Three Kingdoms not just to farm and compete with the Sima family for world supremacy. It was his

Task.

The construction site covers an area of ​​four or five acres. It is slightly narrower in the north and south, wider in the east and west, and is long and narrow. The two rows of poplar trees on the north and south sides have been tied with wooden boards to form fences. From the outside, it does not look like anything at all.

You can't see what's going on inside.

On the periphery of the construction site, Manager Niu also arranged for several strong men to patrol around with sticks in hand, and other unrelated personnel were strictly prohibited from approaching the construction site.

Cao Liang is still very satisfied with the safety protection of the construction site. After all, secretly building large-scale ordnance is not something that can be seen in the light. It's not like you can make a few crossbows and a few bows and pretend that you are going out hunting.

Or used to look after homes and nursing homes.

With such a huge catapult, if you say it is used for hunting, I’m afraid even the ghosts will not believe it.

Cao Liang didn't want others to know that he was building a catapult, especially he didn't want to be discovered by the Sima family, so he used the excuse of building a keel waterwheel to cover up.

Anyway, the surrounding area of ​​the construction site is completely sealed, and it would be very difficult for outside spies to sneak in.

Besides, there is no real object to compare with the counterweighted catapult. Before it is assembled, even if people see these things, they will not suspect anything.

In short, the keel waterwheel provided cover, which made the construction of the catapult much smoother.

Entering the construction site, you can immediately feel the bustling scene. Dozens of craftsmen are busy working nervously, and a giant trebuchet with a height of three feet has already begun to appear.

Although Cao Liang had been mentally prepared before, he was still shocked when he saw the actual appearance of this giant catapult.

No wonder the catapult is called a siege weapon. It is a giant among catapults. Its size alone is scary enough. The largest catapult currently used in the army requires more than 240 gunners to operate it.

, and its size is less than half the size of the catapult in front of you.

Majestic and imposing, it is no wonder that the counterweight catapult is called the pinnacle of the cold weapon era. Even though it is only a prototype, it is already shocking.

A catapult without a catapult arm looks more like a wooden triangular tower. Even Shi Bao was a little baffled when he saw it. He couldn't figure out what Cao Liang wanted to do with such a thing.

Ma Jun is the most eye-catching among the bunch of craftsmen. Others are keeping their jobs and working in place. He is the only one who is running around and shuttling back and forth. It is difficult for him, who is over sixty years old.

The old man walked as fast as he could, not inferior to the young and strong man at all.

Ma Jun was described as a little haggard, with a pale face and a disheveled beard. It was obvious that he had not slept well, but this did not affect his passion. From Ma Jun's eyes, there was an extremely excited and almost crazy look, which was much better than the conservative look.

All men outside the delivery room are excited.

That's right, for Ma Jun, building this amazing catapult was even more important than his wife giving birth to a child.

The most exciting moment for an inventor is when his work comes out. Ma Jun has devoted his whole life to developing the catapult. His dream is about to become a reality, which really makes him ecstatic.

"How...how is it?" Ma Jun and Cao Liang stood side by side, heads held high, filled with pride.

"Can it be completed today?" Cao Liang asked.

"Of course!" Ma Jun said confidently.

Cao Liang glanced at him. It was rare that he didn't stutter when he said this. Cao Liang laughed and said: "Mr. Ma is really a genius in the world. Such an unprecedented instrument can be made in three days."

, it’s really admirable.”

After hearing Cao Liang's praise, Ma Jun did not feel arrogant, but said very humbly: "If Mr. Cao hadn't mentioned... the advice, even if the old man was poor... he might not have been able to create something as exquisite as... in his lifetime.

The unparalleled catapult is coming. When this catapult is born, the young master should...take it as the first meritorious service, while the old man...can only be regarded as a foil."

Cao Liang said: "I don't know anything about machinery. I just have an idea occasionally. Mr. Ma is extremely talented and has superb skills. Without him, even if I have such an idea, I may not be able to achieve any results."

This is Cao Liang’s truth. As a time traveler, although Cao Liang knows more than people of this era, he only scratches the surface. Have you ever seen a train make a train? Have you ever seen an airplane make an airplane?
Chapter completed!