People in Datang have been expelled from school

Chapter 1137 The highest realm of undercover

Li Zheng helped Zhu Ge up and said, "Take everyone to collect the money."

Seeing that Brother Zhu was still in a daze after speaking, Li Zheng changed his expression and said, "Hurry up and take your wages and go to work, if you don't go, your wages will be deducted."

Hearing this, everyone went to Li Yi's mansion to collect their wages in an orderly manner, and left quickly.

I have to say that this group of people took money and ran away quite quickly.

Li Yifu said: "Chang'an Ling, are these people really reliable?"

Up to now, Li Yifu still has some doubts.

Li Zheng said: "What? You don't believe them?"

Li Yifu said in a low voice: "You said that these intelligence officers in His Majesty's hands are too ordinary, they all look like ordinary people."

Li Zheng looked at the backs of Brother Zhu and the others and said, "Then what should you say?"

Li Yifu said: "I think it should be the kind with very strong skills, and the kind that shows the mountain without revealing itself."

Li Zheng said: "Is it the kind that usually doesn't talk much, but can tell at a glance that the person is a master?"

Li Yifu nodded vigorously, "That's right, shouldn't it be like that?"

Li Zhengchang sighed and said: "Li Yifu, often the most successful undercover agent can become anyone, for example, he pretends to be a peddler, and interprets the spirit of the peddler to the right level, and people have seen it once and even can't think of it." It’s best to use him as an undercover agent to inquire about information.”

Li Yifu nodded knowingly, "What Chang'an Ling said is don't look at these people as inconspicuous, for inconspicuous people often play a big role."

Li Zheng sat down again and looked at the empty bowls on the table. Brother Zhu's subordinates were still the same as before. The habit of not washing hands after eating must be changed in the future.

After cleaning up the dishes, Li Zheng lost his appetite.

These days, the academy's research institute is very busy.

Li Zhi lived in the research institute for several days in a row.

Ten days later, Li Zhi took a small boat with a height of half a person to the river in Jingyang.

The weapon business has always been from Chang'an to the Western Regions, and now we need to increase the business route, from Chang'an all the way to the East China Sea, the original route must be retained.

Li Ji was also very busy these few days. He was sitting by the river and was going to take a nap when he saw Li Zhi bringing a group of academy children to the Jingyang River.

What concerned Li Ji the most was the strange boat that Li Zhi was holding.

Although it can be seen at a glance that it is a sailing boat, it always looks weird.

Li Ji stepped forward and said, "His Royal Highness, did you make a mistake in building this boat?"

Li Zhi looked at the boat in his hand and said, "What's wrong?"

Li Ji said: "Why is the bottom of your boat so sharp? This kind of boat can't stand on the ground, let alone launch it into the water."

Li Zhi scratched his head and said, "I don't know why the teacher designed it like this."

Li Ji sneered and said, "That kid Li Zheng has been in Jingyang all day, where has he seen any big boats? There is also a huge boat in Luoyang, has he ever seen it?"

Li Zhi nodded and said, "The teacher probably hasn't seen it before."

Lifting the sailboat model in his hand, Li Zhi said again: "But the experiment still needs to be done."

Li Ji said: "Your academy is the same, do more research that benefits the country, what's the use of doing this kind of experiment."

Just as he was talking, Li Zhi put the boat into the river.

Li Ji watched Li Zhi's movements.

It's just that Li Ji's expression changed from contempt to solemn in the next second.

The small boat floated steadily along the current on the surface of the water, and the speed was quite fast.

Li Zhi opened the canvas of the mast on the model, and as soon as the canvas was opened, the wind blew the boat and sailed quickly.

And as the boat moved, the triangular ripples of the water flow became the wake of the boat, and the speed was quite fast.

Li Ji had never seen such a smooth wake of a ship.

Li Zhi followed the boat all the way, recording the tracking data.

Li Ji froze on the spot, and couldn't figure it out for a while.

After chasing the boat for an hour, Li Zhi picked up the boat from the water.

Li Ji stepped forward and asked, "How did this ship do it?"

Li Zhi smiled and said, "Actually, it's all about physics knowledge."

Li Ji asked puzzledly, "What physics knowledge?"

Li Zhi said: "Actually, the shape of the inverted triangle at the bottom of the boat is intentional, because the bottom of the inverted triangle is pointed. Such a boat has little resistance to the water flow and is very fast."

In Li Ji's mind, he recalled the triangular ripples that almost cut the water surface from the bottom of the boat, which seemed to be the case.Li Zhi also said: "Another advantage of the inverted triangle is that the bottom of the inverted triangle is easier to increase the displacement, so that the bottom of the ship has more space to sink into the water, and the ship does not need to be big or heavy. The bottom displacement of the inverted triangle It’s not small, and because the buoyancy on both sides of the inverted triangle is more concentrated, it’s more stable.”

Li Ji frowned and thought about it.

Li Zhi said, "Did the general understand?"

Li Ji frowned and glanced at Li Zhi, and said in confusion: "You said this dress won't turn over, how can the bottom of the inverted triangle not turn over?"

Li Zhi took out a triangular pillar made of wood, handed it to Li Ji and said, "Put this triangle on the water, and the general can try it too. In fact, the principle is similar."

After speaking, Li Zhi went to the academy.

Li Ji looked at the triangular pillar in his hand and was a little confused for a while. Hearing Li Zhi's words, is it going to be placed in the water?
Carefully looking at the surface of the river, Li Ji put it in the water. Sure enough, as Li Zhi said, the two sides are in the water, and the flat side is on top.

Li Ji sighed with emotion in a low voice: "You are really wise."

Unexpectedly, the inverted triangle can still be used in shipbuilding.

Li Ji thought about building a ship?

Reminiscent of the business of the Wa country, Li Ji immediately walked to the stables in the village.

At this moment, Li Zheng was taking a nap under the shade of a tree in the horse pen.

"Brat! I have something to ask you!"

Li Zheng opened his eyes slightly, and saw Li Ji's stinky face closed again, "Does the general know that it's lunch break now?"

Li Ji stared and said: "The old man has something important to ask you."

Li Zheng turned over and said, "It's a very immoral thing to disturb people's dreams."

Li Ji nodded and said: "Old man, I know, you asked the Academy to build a ship to cross the sea and go to the Japanese country to do business."

Li Zheng said: "General, I read and studied too late last night, can I be quiet for an hour or two and let me sleep for a while."

"Row!"

After Li Ji finished speaking, he sat down on the spot and waited for Li Zheng to wake up.

Afternoon is indeed a good time to take a nap.

Li Ji enjoyed the coolness under the shade of the tree, and unconsciously felt sleepy.

Looking at the sleeping Li Zheng again, his eyelids couldn't keep fighting.

Holding the mentality of squinting for a while, Li Ji slowly closed his eyes.

(End of this chapter)