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 ship, and the matter of making the ship model will be handed over to the assistant in the shipyard, and I am going to go back to Jingzhou." Pen @ fun @ pavilion wWw. ｂｉｑUｇE。 ｉｎｆｏ

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

"Nope." Huang Chengyan shook his head and clapped his hands very easily: "But it's not difficult, I think they will draw it in an hour." ”

The pen in Liu Xiu's hand almost slipped down, and he hurriedly let go of the pen: "You only looked at it for an hour?" ”

"Less than an hour, to be exact." Huang Chengyan stroked his beard and smiled proudly.

Cow people! Liu Xiu had to admit that this guy in front of him had arrogant capital, no wonder he couldn't look down on Liu Biao. The biggest trouble for the shipyard craftsmen and craftsmen is to give drawings, they can draw three-dimensional diagrams, but they are not used to various laws of perspective, often after a few months of training, there are often cases of wrong perspective, what should not be exposed is exposed, and what should be exposed is gone. It took Huang Chengyan less than two hours to figure it out, what it is not a cow.

Liu Xiu got up and spread out the drawings brought by Huang Chengyan, and was greatly admired, this guy not only learns quickly, but also draws beautifully, and is not bad compared with those veterans who have been drawing pictures for several years. The drawings are neat, the layout is reasonable, the labels are also very clear, the handwriting is neat and uninhibited, and it is pleasing to the eye at a glance.

"How are these sizes determined?"

"Based on the results of the test." Huang Chengyan said lightly: "I did three days of experiments with them, and basically came up with these dimensions. At most, they only need to make some minor changes, and there should be no problem. “

Liu Xiu glanced at Huang Chengyan. He could hear the well-concealed contempt in Huang Chengyan's tone. This contempt is not only for the shipmasters of the 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 him and handed it to Huang Chengyan.

"You can take this book with you, you can read it when you have time." Liu Xiu rolled up the pile of drawings casually: "I will arrange for someone to try out these drawings first, but don't get your hopes up." I expect there will be a big change. ”

"Big changes?" Huang Chengyan pursed his mouth, glanced at Liu Xiu, and smiled silently. Look at the book in your hand again: "Physics"? ”

"Yes, this is part of a book compiled by Mr. Cai Bojiao from ancient and modern books, and some of them are annotations made by me. It is used for the enlightenment of children. Take it with you on the road as a pastime. ”

As soon as he heard that it was for the child's enlightenment, Huang Chengyan didn't take it seriously, so he tucked it in his sleeve casually, and told Liu Xiu about the situation in Jingzhou, and then got up to say goodbye.

Huang Chengyan went out, went straight to the dock, and soon found a merchant ship heading east to Jiangling, the captain saw Huang Chengyan looking like a scholar, welcomed him very much, and invited him to live in the cabin next to the main cabin. Huang Chengyan came in a private capacity. There is no special ship sent by the government, and he is very satisfied with such treatment, and soon chatted with the ship boss.

"Sir, what do you think of my ship?" The boat boss stomped his feet in a boastful manner. "This is a new merchant ship from our Yizhou shipyard. The 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, and it is indeed a good ship. You can make a lot of money back and forth, right? ”

"Hahaha...... What kind of money to make. It's just a little bit of food money, and the family doesn't have to worry about food and clothing. ”

"It's not easy for such a big ship to cross the Three Gorges." Huang Chengyan looked at the new ship and secretly praised it, although he didn't pay much attention to the shipwrecks of the Yizhou shipyard, but this ship was indeed better than ordinary ships. He suddenly found a problem, it seems that the ratio of length and width of warships in Yizhou Shipyard has a fixed number, the proportion of merchant ships has merchant ships, the proportion of warships has warships, and the proportion of different warships is also different, but as long as it is the same kind of ship, the proportion is almost fixed. Could it be that this is also calculated? A cloud of doubt rose in Huang Chengyan's heart, and he asked quietly, and when the boat boss heard it, he opened the conversation.

"Of course, this is the conclusion that our great sailors have come to after careful deliberation, saying that it is borrowed from the body shape of the fish, which is a few feet long, a few inches wide, and a few feet deep, all of which are carefully selected. The ship that loads the cargo should be stable, so it should be wider, but when going upstream, the boat that is too wide cannot sail fast, so the front of the ship should be sharper, and the back should be wider......

The boat boss took a sip of turbid wine, wiped his mouth with his sleeve, and said with a smug smile: "Don't hide it, sir, my boat, I usually can't see it, but when it comes to the backwater, then I can see the real ability, it is not easy for you to cross the Three Gorges just now." It is not easy to be difficult, the Three Gorges water rapids are dangerous, and if you accidentally hit the reef, it will be a big trouble. However, my boat is sailing against the current in the Three Gorges, and it is three points faster than other ships, and it is easy to adjust if there is any danger, what is there in this...... What is physical, I don't know, only those literate and hyphenation gentlemen can understand. ”

"Mr. Academy? Physics? Huang Chengyan suddenly remembered the book "Physics" that Liu Xiu gave him for entertainment, his heart moved, and he talked to the ship boss for a few more sentences, returned to his cabin, took out the book from his bag, opened it and scanned the previous table of contents, a little unclear, it seems that he has never heard these words. He casually opened the first page, and the title was "Analysis of the Optical Principles of Small Aperture Imaging".

"Ink Sutra?" Huang Chengyan immediately came to his senses and read it attentively.

This book is not thick, and there are many pictures, so there are not many real words, but Huang Chengyan, as a master with considerable technical attainments, immediately saw the truth contained in this thin book, there are many phenomena he knows, and he has also thought about the truth, but it is far from being so thorough as in this book. For example, he has also considered the principle of imaging the small hole, and basically has a truth that the light is straight to the front line, but he has never understood what is going on with the halo behind the small hole. And in this book, the phenomenon of diffraction of light is immediately discussed after the image of the small hole. All of a sudden, he was stunned.

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

Huang Chengyan was both a little clear and a little confused, and read the book more attentively. There are two kinds of notes on this book. One is Cai Yong's note, which is mainly to execute the text and explain the meaning of the word. One is Liu Xiu's note, which is an exposition of the principles of various phenomena. Huang Chengyan directly skipped Cai Yong's note and focused all his attention on the principle of Liu Xiu's note.

This look. It was for most of the day, when he roughly understood the diffraction phenomenon and was still obsessed with the so-called wave-particle duality, the boat boss stood at the door with a smile and warmly invited him to dinner together. ”

"Me, haha, no. No, I'm here to visit. Listening to the good scenery of Chengdu, I came to open my eyes. Huang Chengyan walked out of the cabin and took the book into his arms. The boat boss shook his head: "Sir, let's put the book down, how many people on our ship like to gamble." The most unreadable book. ”

Huang Chengyan smiled dumbly, turned around and stuffed the book into his bag, and then accompanied the boat boss to the main cabin. He chatted with the boat boss as he walked, but his mind was still in the book, and when he saw the water waves on the side of the gunwale, he remembered Liu Xiu's inference that it was just waves. couldn't help but be a little distracted, and he didn't even pay attention to the ship's boss reminding him that the main cabin had arrived, and hit the lintel with a "bang".

Huang Chengyan rubbed his forehead and smiled at the boat boss: "I was fascinated by the water for a while, and I was ashamed to be ashamed." ”

"Hahaha, it's okay, it's okay, there are more such things in our Chengdu." The boat boss smiled heartily: "Since General Che Cai opened a school in Chengdu, there are many idiot scholars like us in Chengdu. No, Ren Dingzu has changed everyone, sloppy all day long, day and night with a tube to watch the stars, there are people watching the water in the school, there are people watching the bamboo, according to a person sitting there watching the bamboo, it is out of the sage principle, but after three days of starvation, he fell to the ground, and the bag on his head is much bigger than yours. ”

Huang Chengyan said curiously: "What does this have to do with the general of the chariot?" ”

"Of course." The captain of the boat looked at him with surprised eyes: "Both internal and external repair, it was proposed by the general of the chariot cavalry." ”

"Inside and out?"

"Ah, yes, cultivate the mind inside, cultivate things outside, and cultivate both inside and outside."

Huang Chengyan was confused, and asked the boat boss again, but the boat boss didn't come up, but the general of the Che Cavalry advocated that learning should be cultivated both inside and outside, but he didn't know why.

The more Huang Chengyan thought about it, the more suspicious he felt, ignoring the invitation of the captain of the ship to chat and entertain him, he begged for an oil lamp, and after returning to the cabin, he picked up the lamp and read it at night. This read, until the light of day penetrated through the hatch, he put down the book, pushed open the hatch, rubbed his sour eyes, greeted the rising morning glow on the river, stretched out his arms, and his mood was like a rolling river, galloping endlessly.

Enlightenment book? Huang Chengyan thought of Liu Xiu's words and couldn't help but want to laugh. Most of the phenomena in this book are commonly seen, but the truth contained in it is unheard of, such a wonderful book will be hidden deep in the secret room by anyone who sees it, when it is a treasure, how can it be an enlightenment book. However, the ship's boss occasionally mentioned both internal and external repairs, which made Huang Chengyan unwilling to judge easily. Liu Xiujing is good at Taoism, he knows it, it is naturally inside, but what about the outside, does it mean these things outside the body? If this is his internal and external cultivation, then his realm is beyond the reach of ordinary people.

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

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

"It's really like the Taiji diagram you drew." The eldest princess shifted her body to make 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, and after a while, he adjusted the image to a smiling Buddha statue: "What do you see on that Buddha's chest?" ”

The eldest princess looked at the 10,000-character Dharma wheel on the chest of the Buddha statue and said curiously: "This ...... It seems to be a Taiji diagram. ”

"This is the Taiji diagram of Tianzhu Buddhism, and they call it the wheel of the Dharma." 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 of little use to me, what I need most now is the knowledge of a hundred stones per mu." "How is it possible to produce 100 stones per mu." The eldest princess yawned, sat up too, and put on a coat for Liu Xiu: "Don't think too far, even if it is ten thousand stones per mu, there is not enough to eat." ”

"Who isn't." Liu Xiu rubbed his face, with a blank expression: "This is the real worrying thing." ”