On the banks of the Wei River.

Wang Yuan stood by the river with his head held high, and beside him stood Shu Kunshan, Li Chongsi, Yu Lin, Wang Yangming, Liang Xi, Ma Lun and other officials.

As for the old eunuch Li Xing, as well as many of Wang Yuan's disciples, they were still busy working at their respective construction sites.

Three dredging boats run on the river, which is completely unaffected by the silt at the bottom due to the shallow draft. Only occasionally there are some ice floes, which must be pushed away with a pole so as not to hit headlong.

Under the gaze of everyone, Caogong threw down the "mixed river dragon" and stirred up the sediment at the bottom of the river to be more evacuated.

Immediately afterward, the four millers pushed the power table on the deck like a grinder. They did not see much effort, the gears drove the gears, and then the tracks made of canvas, and soon the iron buckets on the tracks dug out the mud one by one, and fell automatically into the wicker baskets placed on the deck.

The sediment excavated by two or three buckets can be filled with a large basket and transported away by the workers in small boats.

Liang Xi, the general of Cao Yun, had a headache about the silting up of the river, and couldn't help shouting when he saw this: "This is a sharp weapon for river control, which can ensure the smooth flow of Cao Yun!" ”

Wang Yuan said with a smile: "General Liang, the rolling dam in the upper reaches of the Wei River can slow down the water potential and block the sediment. However, it must be cleaned frequently, otherwise the rolling dam will be blocked by sediment and will be abandoned, and it is best to clean it every three months in the future. ”

"I remember," Liang Xi said happily, "with this kind of dredging boat, it is very easy to clean up the sediment, just like in the past, thousands of soldiers and civilians had to be organized at every turn." ”

Sometimes, the local approach is the good way.

The dredging vessel does not need a steam engine at all, otherwise it would have to carry additional coal, and the maintenance of the machine is also a problem. The imperial court has a large number of workers, and there is no shortage of manpower at all, if mechanization is really realized, what do you let the workers do in peacetime?

Wang Yuan's construction of the rolling dam and the use of triple soil instead of cement also had practical considerations.

Even if craftsmen are organized to study for a few years and get modern cement out, with the current level of technology, it is impossible to meet the standard of building a dam, and it is a tofu slag project if it is barely built - cement has different labels!

The three-layer soil of engineering strength is different, that thing is added with various auxiliary materials, and under the layer of tamping, the longer the year, the stronger it becomes, and it is not easy to blow it up with ordinary explosives.

In ancient times, cement was developed, and its power was mainly reflected in the civilian and military fields.

For example, Wang Yuan's factory in Tianjin, if there is cement, it can easily build factories and dormitories. For example, in the northern frontier, cement can be used to quickly build border walls in large quantities, and even to build fortresses layer by layer.

Shu Kunshan clapped his hands and smiled: "This is a tool for the benefit of the country and the people, I should write poems to praise the king!" ”

Zhizhou Ma Lun also hurriedly flattered: "Bachelor Wang created things, Shu Yushi wrote poems, and waited until a hundred years later, such as a good story in Linqingzhou." ”

The officials of Linqingzhou echoed one after another, and for a while, they were like a wave of sycophants.

Although the disciples brought by Wang Yangming also felt that the dredging boat was very convenient, most of them had never been exposed to practice, and they did not know what this meant, so they felt that Wang Yuan's invention was nothing more than that.

Li Chongsi said with a smile: "It seems that next year, the imperial court should dredge the Datong River (Tonghui River)." ”

It is a total of 160 miles from Datong Bridge outside Beijing to Tongzhou. In the past 100 years, several dredging have failed, and each dredging will soon be silted again. In addition, it is also very laborious to dredge the river, and it is necessary to drain the river water in stages, so that the river workers can dig up the silt with hoes, and then carry it away with difficulty on their shoulders.

Therefore, the imperial court was simply too lazy to dredge, and after the grain was transported to Tongzhou, the remaining more than 100 miles were taken by land. It was not until the sixth year of Jiajing that Wu Zhong, the imperial history of the patrol, read the classics, and according to the water diversion route of Guo Shoujing in the Yuan Dynasty, this dredging achieved the effect once and for all.

The grain can be changed to land, but it will cost more.

The problem was that merchant ships also had to travel by land, which was time-consuming and costly, and the wharf on the other side of the Chase Bridge was almost abandoned. Heavy commodities such as timber arrive in Beijing from the south, and the cost of transportation is rising because of the silting up of this section of the river.

Now with Wang Yuan's dredging boat, there is no need to drain the river and organize tens of thousands of people to desilt. He only needs to build 30 dredging boats, place 600 river workers on a fixed basis, and dig the silt back and forth every day, and dig it for half a year. Moreover, the dug up sludge belongs to the best agricultural fertilizer, which can be sold to make money.

What is more convenient is the daily maintenance, the dredging boat can be desilted from time to time, without waiting for a large amount of silt to accumulate, and then drain the river water to carry out tens of thousands of projects.

In the Qing Dynasty, the Tonghui River was known as the Qinhuai River in the north, which benefited from the dredging of the Jiajing Dynasty.

The Tonghui River in the Zhengde Dynasty was very bad, and large merchant ships were completely extinct. After the dredging boat dredges the river, it will make Beijing's commerce more prosperous, and hundreds of people can benefit from it, at least the price of rice in Beijing can drop a lot!

Li Chongsi thought of these things, Wang Yangming thought of them, but Wang Yangming's disciples had a hard time thinking of them.

It has nothing to do with IQ, it's purely a matter of vision, and those young people still have a long way to go.

The more than ten students who followed Wang Yangming to Linqing were mixed with a pseudo-believer. This person's name is Jiang Xin, the word Qingshi, halfway through Wang Yangming's derogation of Guizhou, he had already listened to Wang Yangming's lectures, but he did not formally apprentice at that time.

Back at his residence, Jiang Xin met Wang Yangming alone and said, "Sir, if the disciple wants to transfer to the way of physics, please ask Mr. to agree." ”

Wang Yangming said with a smile: "If you want to learn, you can learn, there is no difference between doors and walls here." ”

Jiang Xin was afraid that Wang Yangming would be angry, and explained: "It's really a disciple who is stupid and can't understand the teaching of conscience. It is difficult to know it, or it is difficult to know it, and all kinds of doubts are hidden in my heart, even if I ask Mr. Advice, I can't solve it. Perhaps, the way of physics is more suitable for disciples. ”

Historically, this person followed Wang Yangming for several years, and as soon as he saw Zhan Ruoshui, he immediately changed his court. It is only because of Zhan Ruoshui's mind that it advocates observing all things to obtain heavenly principles, and then using the observed heavenly principles to feedback the heart, unlike the ethereal and elusive Yangming psychology.

The news that Jiang Xin planned to change majors soon spread among fanatical believers.

My friend Ji Yuanheng was very unhappy and asked, "Qingshi, why did you turn your back on Mr.?" ”

Jiang Xin explained: "I didn't turn my back on my husband, but I was stupid and difficult to understand the knowledge of conscience, and I wanted to find another way from the way of physics. ”

Ji Yuanheng sneered: "What kind of physical way? I think it's the way of a hundred jobs. Improving the dredging boat is indeed beneficial to the country and the people, but compared with the Avenue of Xinxue, it is just a small road. The goal of our learning is to be holy, not to become a skilled craftsman. ”

Jiang Xin said: "That's not all, Master Wang is also a disciple of Mr., and he has already understood the essence of Xinxue, how can he only care about the small way." ”

Ji Yuanheng said: "The relationship between words and deeds and doctrine is more like the heir of the Mo family in the Warring States Period." ”

"How is it the Mo family again?" Jiang Xin asked.

Ji Yuanheng said: "He carried a sword in his hand, and the disciples around him followed, and he killed the officials in a fit of anger. He also focuses on inventing instruments and is obsessed with the way of a hundred crafts. So heavy, isn't it a Mohist style? ”

Jiang Xin muttered: "If you talk like this, Mr.'s mind is still like Zen Buddhism." ”

Ji Yuanheng was furious: "Zen Buddhism is just dry sitting, how can we mix up knowledge and action?" The work of Zen Buddhism is made by imagination, and the work that we wait for is done by doing things. You really don't understand the knowledge of the gentleman! ”

Jiang Xin said: "Perhaps, the way of physics is just similar to the Mo family. ”

"Are you really going to study physics?" Ji Yuanheng asked.

Jiang Xin asked rhetorically: "Do you still want to cut off relations with me because of this?" ”

"That's not it, everyone has their own aspirations, so go ahead." Ji Yuanheng left in a huff.

The next day, Jiang Xin went to consult Wang Yuan. Wang Yuan didn't talk about the specific content of mathematics and physics, but only took out Zhu Xi's set, mixed with Yang Ming's psychology, which was misinterpreted beyond recognition, and it was a fool.

Then, using various physical knowledge as examples, he also said that he had seen the true face of the moon with his own eyes, and that the earth was a ball rotating around the sun, and so on.

Jiang Xin was impressed by the sentence "with all things and all things", and the doubts accumulated in Wang Yangming suddenly became clear in an instant, this is the knowledge he wants to pursue!

"Mr. Wang, if I want to learn physics, please give me advice." Jiang Xin bowed to Wang Yuan as a disciple.

Wang Yuan smiled and said: "You and I are learning from the same school, you don't have to see each other like this, just learn from each other in the future." ”

In a daze, Wang Yuan actually snatched a disciple from Wang Yangming, and he was also a disciple accepted by Wang Yangming before he became enlightened.

Wang Yangming is not unhappy, he has taken over the construction of the reservoir.

Wang Wensu has always been in charge of the construction site on the other side of the reservoir, and many times he has been in a hurry, and Wang Yuan needs to wipe his buttocks. Now that Wang Yangming has taken over, there is no need for Wang Yuan to worry about it at all, and things are much smoother than before.

During this year's Spring Festival, Wang Yuan spent time on the construction site, while Shu Kunshan stayed in the city to have fun with a group of literati.

Until the eighteenth day of the first lunar month, the Lantern Festival has passed, and the reservoir, rolling dam, and diversion canal have finally been completed.

It had to be completed, and the longer it dragged on, the more impetuous the workers became.

Because they are all displaced victims, they want to rush back to their hometowns to be busy with spring ploughing. Once you miss the spring ploughing time, you will have no food and clothing throughout the year, which is also the reason why Wang Yuan is crazy about rushing for the construction period.