There is a word called psychological suggestion.

Psychological suggestion does not only refer to self-suggestion, but also external suggestion. is like the current Yang Yuhuan's feelings towards Xu Yi.

Originally, the little girl had a hero complex, from the first time Xu Yi scolded Li Zhen on the beach, relieved Yang Yuhuan, and then left with her so freely at the so-called celebration banquet in Henan Mansion, all of which left traces in Yang Yuhuan's heart.

In addition, Xu Yi supported her hobbies and bluntly said that her uncle defended her.

There are also some rumors about Xu Yi in the entire Dongdu well during this time, as well as the first couplet, which makes Yang Yuhuan can't help but reverie······

Moreover, Xu Yi treats Yang Yuhuan differently, as if everyone around him can feel it, it is his uncle······ When receiving Xu Yi, Yang Yuhuan will be present.

Many factors come together, and it is inevitable to form a hint from the outside world about Yang Yuhuan: Xu Yi is interested in her.

Xu Yi really wanted her, but in Xu Yi's heart, he was only good friends, and he didn't dare to think too much.

No matter what happened, Xu Yi let those thoughts stay in the Eastern Capital, and he, after receiving the imperial edict, went down the river with Pei Yaoqing.

This time, Xu Yi's title is Jianghuai Transit Envoy, and he himself doesn't know whether this is a promotion or a demotion.

From the Tongji Canal to the southeast, it is the route of Xu Yi and Pei Yaoqing to the south, which is the route of the Grand Canal.

"Guanzhong is narrow, densely populated, and the grain production is not enough to eat, so it needs to be relied on by the grain-rich Jianghuai. To the east of Luoyang, the leased millet was first transferred to Luoyang Hanjiacang, and then transferred to Chang'an to fill Taicang. At that time, there were few central officials, and there were not many officials. One or two hundred thousand stones per year is sufficient. ”

After Gaozong, the imperial court provided for a surge in officials, and the military and civilian food were added, and Cao Yun became an urgent issue, so it was necessary to set up a special envoy to be responsible for Cao Yun. In the second year of the old calendar, the imperial court took Li Jie as the water and land transportation envoy in Shaanzhou, which was the beginning of the special envoy. ”

"The saint is in the eastern capital for no less than April every year to deal with government affairs, and the eastern capital is respected by the Shenlong Martial Queen, not the saint voluntarily bumps, but it has to be so."

"The saint is in the Eastern Capital, not to mention the soldiers of the Four Guards of the Inner Palace, even the six departments of the Imperial Court and the Jiuqing Yamen also accompany the Eastern Capital. It is said that it is a waste of money for the people, but in fact, the imperial court is to maintain the price of grain in Guanzhong and let the people eat food. ”

The words Pei Yaoqing said to Xu Yi didn't seem to have anything to do with it, and they were a little confused.

Xu Yi understands, and he has also learned a little during this time.

Pei Yaoqing didn't say it explicitly, and Xu Yi also knew what he meant in and out of his words. The thousand-year-old Guanzhong Plain is already overwhelmed and is not enough to feed the people living in Guanzhong.

The so-called prosperous era, in fact, is almost to uncover the ugly cloth. Cao Yun is related to the stability of the Dasheng Dynasty, and the transportation of grain from the south to the north is related to the fate of the entire Dasheng Dynasty.

For a while, Xu Yi felt that Pei Yaoqing, or the family, was not the so-called bloodsucking worms crawling on the dynasty, although they didn't care about the change of dynasty, but in every dynasty, they were doing their best for this dynasty.

Pei Yaoqing's emotions at this time can't deceive people, he is really a little worried about the affairs of the world and the situation of the world.

At this time, Pei Yaoqing was instructing, and Xu Yi echoed and listened carefully.

"This ship is a remodeled sea falcon warship, and although the wind and waves are high, there is no capsulation. Sail when the wind is downwind and rock the oars when the wind is upwind. It is the most advanced warship of my Daisheng. ”

From the moment Xu Yi boarded the ship, he was already confused about the ship.

The size of the boat is not large, the head of the boat is low and the tail is high, the hull is wide in the front and narrow in the back, and the draft of the boat is not deep, although he can't see the bottom of the boat, Xu Yi feels like he is floating.

The point is that this so-called sail is lonely and square, just like a flag······

Is this the most advanced warship?

Xu Yi didn't understand the boat, let alone the principle of sails, but as far as Xu Yi knew, the sailboats were hung with a lot of sails on the front and back.

He remembered that there were sensationalists who could cross an ocean with their sailboats. At the same time, the sailboat in Xu Yi's cognition can completely rely on the sail, whether it is downwind or against the wind, I don't remember that I still need manpower to paddle and shake······

However, he still didn't make any comments, and let Pei Yaoqing babble about teaching.

It was still Xu Yishi, and at that time he thought wildly, thinking about organizing a team to excavate all the canal ruins in history, starting from the earliest Lingqu.

Because of this idea, Xu Yi has consulted a lot of information······

At that time, people relied on land and even air transportation. In addition to navigation, inland river transportation has declined.

I was fortunate to be able to appreciate the style of the Grand Canal, and Xu Yi still enjoyed it quite a lot.

Even Yingniang and her entourage are also very interested in going south by boat.

Don't think about those brain-burning things for the time being, listen to Pei Yaoqing's story, and sail on the Grand Canal with rippling blue waves, which has a different taste.

"That's the Slender Man?"

The counter-current and wind direction are not consistent, which makes it difficult for sea boats to navigate some sections of the river even if they have human paddles.

Xu Yi was still not used to being a nobleman, and when he saw the skinny slender men dragging the sea falcon boat slowly forward, he felt a little panicked.

Except for him, there was not a single person on the entire ship who was unnatural.

If it's a sail, you can ······ What do you think, what kind of person and what life, I'm really a little hypocritical.

I have been secretly telling myself: I am a nobleman, and I am qualified to enjoy this treatment.

However, when night came, Xu Yi tossed and turned, and it was difficult to sleep······

Xu Yi doesn't understand sails, but he still understands the most basic mechanics. Therefore, Xu Yi began to be obsessed again.

Xu Qing was no longer panicked when he saw Xu Yi like this at this time, he knew that as long as the Lord appeared like this once, there would be something amazing.

"Your House Will ······"

"Hui Pei Gong, my family will be doing learning."

Xu Qing was quite proud when he said this······ Wait and see, when my family is finished, you will be amazed like the prime minister.

How is King Xin'an? I am also amazed at the ability of my lord.

Pei Yaoqing wasn't sure if Xu Yi's current concentration was related to Cao Yun, but he supported this kind of focus.

The main is painting, one line and two lines, turning like this, turning like that, crooked like that, Xu Qing can't understand it.

Every time he drew a picture, the general began to use those ghost runes, and Xu Qing didn't understand it.

Xu Qing needs to settle Yingniang at this time, and at this time, no one can be allowed to approach the general, except for him to serve the general's food and drink······

I can't remember many theorems clearly, so Xu Yi can only sketch and calculate while trying to retrieve the formula.

I am obsessed again, or I am pretending to be a bull's horn. When Xu Yi really couldn't think of those formulas, he simply drew the line of action of force, probably, maybe, maybe it should be.

In fact, the formula is not a formula, this does not need to be quantitative, as long as the wind direction can act on the force on different sails, through the angle to form a resultant force, you should be able to make full use of the sail.

After figuring it out, the craftsman Xu Yi found was ······

On the deck of the sea falcon, a large wooden barrel, the surface of the water is flush with the rim of the barrel, surrounded by a circle of people.

Xu Yi put the boat made by the craftsman according to his design on the water: "This can't work, you need to let it face the wind..." Uh, no, it should be to let it follow the trend. ”

A one-foot-long boat, a three-foot-long bucket, surrounded by seven or eight people, the wind has to drill through the cracks of the people, how can you see the role of the sail?

So, people followed Xu Yi to the side, the sails were not adjusted properly, after all, it was windy, and they saw the boat dripping and turning in the bucket.

Xu Yi had to twist the sails on the boat model, and compared the resultant line he had drawn, he finally made the boat run in a straight line.

In an instant, the boat had already sprung from one end to the other. When Xu Yi adjusted the sails again, it was also a momentary feeling, and the boat flew to the original end again······

They all thought it was just fun, but Pei Yaoqing was different: "Xu Yi, can this thing work?" ”

"Pei Gong, it should be possible, but it's better to be cautious. Does the sea falcon have a small sampan on board? Try it with a small sampan. ”

Lowering the small sampan from the stern of the boat, Xu Yi went with a boatman to test the action of the sail on the small sampan.

When Pei Yaoqing watched the small sampan being fiddled with by Xu Yi without paddling or rocking, he could sail in the river at will. Forward, backward, turning, sideways, any direction can be assisted by sails······

Pei Yaoqing excitedly circled on the deck: "Brother Yi'er, this is a great achievement." The old man will report to the court according to the truth and ask for credit for his righteous brother! ”

Xu Yizhen didn't have any credit, he also knew that now that he was a five-grade, at his age, it was impossible for the imperial court to promote his grade and title.

However, there should be no harm in giving more credit: "Pei Gong, the kid is not sure that it is feasible, he needs a professional shipyard to verify more." ”

"This is a schematic diagram of the position of the sail and how to take advantage of the wind, and I believe that as long as you are a boatman, it should not take you time to grasp it."

Regarding the role of force, Xu Yi is not ready to say too much, mainly because he may not be able to explain clearly.