(Nearly 6,000 words, equivalent to two chapters)

The shipyard is located at the mouth of the Yushui branch in the south of Panyu City. According to the original history, the earliest shipbuilding site discovered by Chinese archeology will be excavated here more than two thousand years later. It is just that I don’t know if there was a Mohist in that workshop.

Footprints. Novel .

Azhong, the Mohist, has been here for half a month. This workshop is not big compared to the Central Plains. It is a wood processing plant on the land. There are many giant trees, firs, and mushrooms in Lingnan, which are all good materials for shipbuilding. The soldiers and corvee workers

After cutting it down with an ax and ax and throwing it into the stagnant water, you can go down the river, saving time and effort.

There are ten shipbuilding platforms side by side, six small and four large. The small ones can build 300 Dendrobium boats and the large ones can build 500 Dendrobium boats. The shipbuilders from Jiaodong and Kuaiji are busy working non-stop, starting from building the keel.

After nailing the deck, it took more than a month to build a ship. As soon as the built ship was launched, it sailed upriver. The war between Changnan Marquis and Ouyue was in full swing.

Azhong asked that most of the craftsmen were recruited from the "Qingdao Port" in Jiaodong. It was this group of shipwrights who built the sailing ship that could cross the East China Sea and expedition to the east of the sea. Xu Fu, an aide under the Marquis of Changnan, also

Come and visit from time to time.

But the ten ships currently built by craftsmen are not sharp-bottomed long-distance sailing ships, but flat-bottomed river ships without tall masts. The main power is paddles, but in the rear third of the ship, there are

There are no more oar holes, but instead, there are two more things that look like big wheels on the left and right sides...

If you run to the inside of the ship's cabin and take a closer look, you will find that this is not actually a wheel, but rather resembles the "treadmill" in Nanjun, also known as a keel waterwheel. This thing appeared in Anlu County last year.

In the fields, several people hold wooden poles and step on the pedals to drive the axle, and then use the waterwheel to draw water into the fields. When Azhong passed through Nanjun, he saw farmers' wives and daughters treading water. Different from the big waterwheel, it was

Turned by human power.

Nowadays, it is just a matter of putting the bicycle on the boat, which is a little easier. The pedals and large and small wheel axles are retained, but the wooden chain scraper is replaced by a wheel paddle, which can enter the water about one foot...

This is why Heifu asked Ah Zhong to help. Although the principle is not difficult, it is by no means as simple as transplantation. Making and debugging a huge wheel axle and making it run properly requires a Mohist to outline and lead it.

It was precisely because of the installation of propellers that this new type of vessel was called a "steamboat" by Heifu. It was now a two-wheeler, and there were larger four-wheelers, six-wheelers, and even eight-wheelers next to it.

"My arms can't twist my thighs."

This is Changnanhou’s original words, and it is also nonsense. From the difference in strength between legs and arms, we can know that pedaling must produce more force than hand rowing. From the perspective of physical efficiency, the paddle blades move continuously and are highly efficient.

, while the wooden paddle moves intermittently when paddling, and the efficiency is low.

Azhong understood these words. After all, Mozi had long ago proposed that "force is inspired by form." Force is the principle of accelerated motion of objects.

In short, the Marquis of Changnan hopes that after installing the paddle wheel, the ship will be faster than ordinary paddle boats, and it can also go upstream in this rainy and fast season to send soldiers to the upper reaches of Yushui to cooperate with the ongoing "blockhouse" project.

Tactics ", pacify Xiou.

Practice is the only criterion for testing theory. Today, the first "ship" was built, and the Marquis of Changnan came with his entourage to watch the launch. But no one expected that when the Marquis drove to the shipyard, it suddenly rained heavily outside.

The water in the river was turbid and fast, so ships could not enter the water for the time being.

"Xu Fu, didn't you say today is an auspicious day?"

Looking at the heavy rain outside, Hei Fu looked at Xu Fu with a gloomy look.

Xu Fu said with a smile: "I am a native of Qi. I left the East China Sea and went to the South China Sea. The gods I pray to are different, so my divination and stargazing are not very effective."

"Oh, you are a Lu people migrating to Yue. So next time, when I go out again, will you find a Yue shaman to kill chickens for divination?"

Heifu said angrily, it seems that Xu Fu's "stargazing skills" still cannot be used as a weather forecast.

Hei Fu had no choice but to wait patiently for a while, only to find that God was not giving him any favor. The rain was getting heavier and heavier, as if there were gods on the clouds pouring down water. The big raindrops made the tiles crackle.

Not to mention that he is not small at all. Let alone the trial voyage of the ship, he can't even return to the handsome tent!

"This is the rain in Lingnan, it's really vicious!"

Heifu lamented that he didn't want himself and his bodyguards to be soaked in the rain. The hot summer was an area with high incidence of diseases. A cold or fever might cause complications and kill people.

"Forget it, just spend tonight at the shipyard."

Heifu simply let everyone stay in the shipyard. He had the consciousness of sharing the same food and clothing as the soldiers. He squatted on the ground and ate some simple rice with fish soup with the boatmen. He also asked the soldiers to find wine to reward everyone and taught them how to box.

, the loser drinks to pass the time...

When it got completely dark, the heavy rain still showed no sign of letting up. Heifu accepted his fate and asked Sang Mu to arrange guards. He yawned and was about to go to bed when Azhong came over and bowed to him.

"What's the matter?"

Heifu quite admires Azhong. Although these Mohists like BB, they are also action-oriented and clever. The most rare thing is that they sincerely "serve the people".

Ah Zhong said: "I didn't want to disturb you, but I just discovered something and was confused."

"Sit down and let's talk." Hei Fu didn't need to be particular about the indecent and unpleasurable Mo Zhe. He sat down on the couch with a heavy body.

After Azhong received Hei Fu's permission, he also sat down and said, "When I was helping the craftsmen make the ship, I discovered that the principle of the paddle on this ship came from the treadmill."

"Well, it's just a treadmill."

Hei Fu nodded. The two were so similar that ordinary people could tell that the bicycle was made by him when he went south last year. During those days when he was at home, his sister-in-law also came back. Hei Fu instructed him to build it. It was just a common thing in southern rural areas in later generations.

utensils.

"As for the treadmill, I heard that it was made by the prince's sister, Zhang Xin, in Nanjun last year..."

Azhong stared at Heifu, feeling that he had touched the key.

"Recall again, the water mills, water mills, water rows, and water wheels that our painters have made in the past ten years all originated from the water buckets made by Junhou and Citron... As for the water buckets, they were transformed from Anlu's tread buckets.

.If you think about it carefully, in the past ten years, everything that has made workers and peasants achieve twice the result with half the effort originated from Anlu, and they are all related to the princes. Sir, do you actually have the skills of Zi Mozi and Gongshuban!?"

"Hahaha, what a smart young man."

But Hei Fu burst out laughing, and suddenly he remembered that more than ten years ago, there was a smart old fox who also saw through this flaw at a glance. It's a pity that there is no such thing as Shi Teng in the world.

After he stopped laughing, he shook his head and said, "You are wrong, Azhong. In fact, the source of these hydraulic equipment is not me."

"Who is the source?"

Azhong is very smart and likes to get to the bottom of things when doing things. When he installed water mills with his teacher in Guanzhong and developed more water-powered equipment that made sense, he once thought about the source of this thing and determined that it was the work of Changnan Hou.

"Do you have paper and pen?"

Heifu didn't answer directly, but sent Ah Zhong to get pen and ink, and started to draw on the desk.

It was still raining outside, and even though the shipyard dormitory was built in a dry-stall style, the humidity was still very heavy. Several soldiers gathered outside to block the wind and rain that penetrated through the cracks in the door, so that Azhong could keep the lights on.

But I saw that what Changnan Hou drew on the paper was a tree. The trunk was very big, and it branched upwards into countless branches, and each branch branched into countless small branches.

"Do you know what kind of tree this is?" Heifu asked, lighting the paper.

Azhong didn't know why and shook his head.

But Heifu showed an interesting smile: "I call it 'Technology Tree'!"

…

"May I ask you, Lord, what is technology?" Azhong had never heard of this term.

"It's a new word I made up."

Heifu was not ashamed to speak loudly, but he did have a reasonable explanation, and he started talking:

"The medical skills of Chen Wujiu and other medical officials, the alchemist skills of Xu Fu and other alchemists, the agricultural skills of old farmhouses, the engineering skills that you and other painters are good at, and even the killing skills of bows, crossbows and flying stones, military arrays, etc.!

"

"All the skills mastered by the world can be collectively called 'technology'. In my opinion, their shape is just like the legendary building trees that are as high as the sky!"

"Is that so?"

Azhong opened his eyes wide and looked serious, as if he had returned to the Qin Mo camp in Xianyang, sitting in rows with his brothers and listening to the master's explanation of the "Mo Jing". The master said before sending him to Lingnan, don't look at it

The Marquis of Changnan was not of high birth, but his knowledge was no less than that of Zhang Cang!

He had a hunch that Marquis Changnan was going to teach him an extremely important lesson today!

After saying that, Heifu took another piece of paper and wrote the word "craftsmanship". Then he began to draw the tips of several small branches and wrote the names of water mill, water grinding, water drainage, water wheel, water mill, etc., but in

The word "water wheel" is written where the branches begin.

"You are right. After the water hammer came into being, the world discovered that in addition to human and animal power, we can also use water power to pound rice, grind flour, blow wind, and draw water. But the most critical part of the water hammer, the water wheel,

Where did it originate from?"

Ah Zhong thought for a while: "It should start from the wheel."

"good."

Heifu divided the water wheel into "horizontal water wheel and vertical water wheel". As he continued to draw, they turned into a branch. It turned out that the entire "hydraulic equipment" was just a small branch of engineering technology, and the core part of the water wheel was water.

The origin of the wheel is the wheel!

So in a certain game, the front-end technology of the water mill is the wheel...

"Who made the wheel?" Heifu's question came up again. Anyway, it was raining heavily outside and the night was long. He happened to have nothing to do. Seeing that Azhong was more understanding than his husband Cheng Shang, he simply gave some advice.

In terms of specific hands-on skills, Heifu is not qualified to be Azhong's apprentice, but in terms of vision, he is good enough to be his teacher.

Azhong did not stay in the Mo family for more than ten years in vain, and immediately said: "The wheel was made by Xi Zhong, who was the driver of Xia Yu's chariot.

Use it firmly and the finished tool will be strong..."

Wait, so what Changnan Hou means is that all these hydraulic engineering skills must be attributed to the wheels running on the road?

But Heifu was obviously not satisfied with that. He extended the branch of the "wheel" backward and continued to ask: "If you think about it again, where did the wheel originate from?"
To be continued...