Huang Chengyan walked in with a bunch of drawings, put the drawings on the table, and said proudly: "General, I have already drawn the drawings of the sea boat. I will leave the work of making the ship model to the assistant in the shipyard. I am going to go back to Jingzhou."

Liu Xiu raised his head and looked at the pile of drawings in surprise: "Have you drawn pictures before?"

"No." Huang Chengyan shook his head and clapped his hands easily: "But this is not difficult. I'll see that they'll draw for an hour."

The pen in Liu Xiu almost slid down, and he quickly let go: "Have you only looked at it for an hour?"

"To be precise, it's less than an hour." Huang Chengyan stroked his beard and smiled proudly.

Awesome! Liu Xiu had to admit that the guy in front of him had a proud capital, no wonder he looked down on Liu Biao. The biggest trouble for the ship craftsmen in the shipyard when studying was to give pictures. They could draw three-dimensional pictures, but they were not used to various perspective laws. Often after training for a few months, there were often situations where the perspective was wrong. What should not be exposed is revealed, but what should be exposed is gone. Huang Chengyan took less than two hours to figure it out. What is it that is not a great person?

Liu Xiu stood up and spread out the drawings brought by Huang Chengyan, and praised him. Not only did this guy learn quickly, but he also drew beautiful pictures, which was not bad compared to those veterans who had been drawing pictures for several years. The pictures were neat, reasonable layout, very clear labels, and neat and unrestrained handwriting, which was pleasing to the eye at first glance.

“How are these sizes set?”

"It was determined based on the test results." Huang Chengyan said lightly: "I conducted the experiment with them for three days and basically came up with these sizes. At most, they only need to make some detailed modifications, and there should be no problem."

Liu Xiu glanced at Huang Chengyan. He heard a very concealed contempt from Huang Chengyan's tone. This contempt was not only a contempt for the shipmasters of Yizhou Shipyard, but also for Liu Xiu. He put down the drawings, patted them gently, got up and took a book from the bookshelf behind and handed it to Huang Chengyan.

"You can take this book with you, and you can take a look at it if you have time." Liu Xiu rolled up the pile of drawings: "I will arrange for someone to try these drawings first, but don't have too much hope. I guess there will be major changes."

"A major change?" Huang Chengyan glanced at Liu Xiu, smiled silently. He looked at the book in his hand again: "Physics?"

"Yes, this is part of a book compiled by Mr. Cai Boyi from collecting ancient and modern pictures. Some of them are my notes. They are used for enlightenment for children. Take it on the road as a pastime."

When he heard that it was for the child's enlightenment, Huang Chengyan didn't take it seriously. He tucked it in his sleeves and told Liu Xiu about the situation in Jingzhou, then got up and said goodbye.

Huang Chengyan went out and headed straight to the dock. He quickly found a merchant ship heading east to Jiangling. The boss of the ship saw Huang Chengyan look like a scholar and welcomed him very much. He invited him to live in the cabin next to the main cabin. Huang Chengyan came in his private capacity. There was no special ship sent by the government, so he was very satisfied with the treatment he could have, and soon chatted with the boss of the ship.

"Sir, how do you think of my ship?" The boss of the ship stomped his feet with a show of flaunting. "This is a new merchant ship from our Yizhou Shipyard. Yizhou Shipyard is rushing to build warships, and merchant ships are not easy to buy."

"Yes, this ship is stable and carries a lot of cargo. It is indeed a good ship. You can make a lot of money by going back and forth, right?"

"Hahaha...what money can you make? Just make some money, and the whole family will have no worries about food and clothing."

"It's not easy to pass the Three Gorges for such a large ship." Huang Chengyan looked at the new ship and praised himself. Although he didn't take the ship masters of Yizhou Shipyard seriously, this ship was indeed better than common ships. He suddenly discovered a problem. It seemed that the length and width ratio of the warships in Yizhou Shipyard were fixed. Merchant ships had merchant ships, warships had warships, and different warships had different proportions. However, as long as they were similar ships, the proportion was almost fixed.

Could this be calculated? A slight sensation arose in Huang Chengyan's heart. He asked calmly. When the boss heard this, he opened the conversation.

"Of course, this is the conclusion drawn by our great ship masters after careful consideration. It is said that it is a carefully selected choice for fish, several meters long, several meters wide, and several meters deep. This loading ship is to be stable, so it should be wider, but when it goes up against the current, a boat that is too wide cannot sail quickly, so the front of the ship should be sharper and the back of the ship should be wider. These are the tricks that ordinary people cannot understand..."

The boss of the boat took a sip of wine, wiped his mouth with his sleeve, and smiled proudly, "I'm not sure about it. My boat is not easy, but when it comes to the water, I can't see it. You just said that the Three Gorges is not easy. It's really not easy. The water in the Three Gorges is fast and the sun is dangerous. If you accidentally hit the reef, it will be a big trouble. However, even if my boat is sailing against the water in the Three Gorges, it must be three points faster than other boats. It is easy to adjust any danger. What is there... physics, I can't tell you clearly. You need those school teachers who know the text and write to understand it."

"Mr. Xuetang? Physics?" Huang Chengyan suddenly remembered the book "Physics" that Liu Xiu gave him to recreate. He moved his heart and talked to the boss of the boat. He returned to his cabin, took out the book from his luggage, opened it and scanned the previous directory. He seemed to have never heard of these words. He opened the first page casually, and the title was "Analysis of the Principles of Optical Imaging of Small Hole".

"Mo Jing?" Huang Chengyan immediately became energetic and began to read it with concentration.

This book is not thick and has many pictures, so there are not many real words. However, as a master with considerable technical attainment, Huang Chengyan immediately saw the truth contained in this thin book. He knew many phenomena. He had thought about the truth, but it was far less thorough than the one mentioned in this book. For example, he had considered the principle of imaging the small hole. He had basically had a principle of going straight in the front line, but he had never figured out what was going on with the halo behind the small hole.

In this book, the diffraction phenomenon of light was immediately discussed after the imaging of the small hole, which suddenly made him realize.

Just moving forward in a straight line can expand like a water wave, and the difference lies in the size of the small hole. When the diameter of the small hole is small to a certain extent, will the light moving forward in a straight line become a wave?

Huang Chengyan was a little clear and confused, and read the book more carefully. There are two kinds of notes in this book. One is the notes by Cai Yong, which mainly interprets the text and explains the meaning of the characters. The other is the notes by Liu Xiu, which explains the principles of various phenomena. Huang Chengyan directly skipped Cai Yong's notes and focused all on the principles of Liu Xiu's notes.

After seeing this, it was only half a day when he roughly understood the diffraction phenomenon and was still obsessed with the so-called wave-particle duality, the boss of the boat stood at the door with a smile and enthusiastically invited him to have dinner together. Seeing Huang Chengyan reading a book, the boss of the boat laughed: "Sir, are you really working hard, can you come to Chengdu School to study?"

"I, haha, no. No, I'm here to travel. I heard that Chengdu is beautiful, so I'll open my eyes." Huang Chengyan walked out of the cabin and put the book in his arms. The boss of the boat shook his head: "Sir, put the book down. Most of the people on our boat like to gambling. The most shameful book."

Huang Chengyan laughed silently, turned around and stuffed the book into the bag, and then followed the boat boss to the main cabin. He chatted with the boat boss while walking, but his mind was still on the book. He saw the water waves on the side of the side and remembered Liu Xiu's inference that it was just waves. He couldn't help but feel a little confused. Even the boat boss reminded him that the main cabin had arrived, and he ran into the lintel with a "bang".

Huang Chengyan rubbed his forehead and laughed at the boss of the boat: "I was so proud of watching the water, and I was so embarrassed."

"Hahaha, it's okay, there are so many such things in our Chengdu." The boss of the boat smiled cheerfully: "Since General Cheval opened a school in Chengdu, there are so many idiotic scholars like us in Chengdu. Not to mention anything else, Ren Dingzu and Ren have become different people. They are sloppy all day and night, putting pipes to see the stars. There are people watching water and bamboo in the school. It is said that there is a person sitting there looking at bamboo, saying that it is a sage. But after three days of hunger, he fell to the ground. The bag on his head is much larger than you."

Huang Chengyanqi said: "What does this have to do with General Cheqi and Cavalry?"

"Of course it's related." The boss of the ship looked at him with surprise: "It was proposed by General Cheqi and Cavalry."

“Entertainment both inside and outside?”

"Ah, yes, you can cultivate your mind internally, cultivate things externally, and cultivate both internally and externally."

Huang Chengyan was confused and asked the boss again, but the boss couldn't say it. He just said that the General of the Chek and Cavalry advocated that knowledge should be cultivated both inside and outside, but he didn't understand why.

Huang Chengyan felt more suspicious the more he thought about it. He ignored the invitation of the boss of the boat to chat and recreate, so he asked for an oil lamp, and then returned to the cabin and read it at night. This time, he read until the skylight came in through the cabin door, and then put down the book, pushed open the cabin door, rubbed his sour eyes, faced the rising morning glow on the river, spread his arms and stretched, his mood was like the rolling river water, rushing endlessly.

Enlightenment Book? Huang Chengyan couldn't help laughing when he remembered what Liu Xiu said. Most of the phenomena mentioned in this book are usually seen, but the principles contained in it are unheard of. Anyone who sees such a wonderful book will hide a secret room. It should be a treasure. How could it be an Enlightenment Book? However, the boss of the ship occasionally mentioned both internal and external cultivation, which made Huang Chengyan unwilling to make a judgment easily. Liu Xiu was good at Taoism, so he was clear, so it was naturally inside, but the outside, could it mean these things outside? If this is what he said about both internal and external cultivation, then his realm was beyond the reach of ordinary people.

Huang Chengyan pondered for a long time and sighed: "There is heaven beyond the sky, and there are people beyond the sky."

At the same time, Liu Xiu had just woken up from his sleep, holding the eldest princess with one hand and piling under his head with the other hand. The black pottery pillow was squeaking, and a vast star map floated in the room. Star dust shone like dust, and the Milky Way was spinning slowly like a large disc.

"It's really like the Tai Chi diagram you drew." The eldest princess moved her body, making herself more comfortable, and looked at the slowly rotating Milky Way with sleepy eyes: "Have you seen it before?"

Liu Xiu didn't say anything, but there was a self-deprecating smile on the corner of his mouth. After a while, he adjusted the image to a Buddha statue with a flower-smiling smile: "Look at what is the Buddha's chest?"

The eldest princess looked at the Wanzi Falun on the chest of the Buddha statue and said strangely: "This... seems to be a Tai Chi diagram."

"This is the Tai Chi diagram of the Dharma of India. They call the Falun Changzhu." Liu Xiu snapped his fingers and the image suddenly disappeared. Liu Xiu turned over and sat up, scratching his head: "These are the most profound truths, but unfortunately, they are useless to me. What I need most now is the knowledge of yielding 100 stones per mu."

"How is it possible to produce hundreds of stones per mu?" The eldest princess yawned, sat up, and put on a coat for Liu Xiu: "Don't think too far. Even if the yield per mu is tens of stones, there are times when there is not enough food."

"Who said no?" Liu Xiu rubbed his face, looking confused: "This is the real thing that makes people worry... The second update is here, please give me monthly votes and recommend votes! It's really bleak recently. (To be continued) Please search for Piaotianwen, the novel is better and faster!!!
Chapter completed!