Qin asked

Glass is a good thing. It is cheap in modern society and has a wide range of uses. Although it has been reduced (?) to gemstones in ancient times, as long as it is used properly, it can still exert certain benefits, such as making a telescope.

Except for astronomical telescopes, ordinary telescopes are generally divided into binoculars and monoculars. Logically speaking, the principles of the two are the same. In fact, they are both...

Wait, Mo Dou looked at the structural diagram of the binoculars found on the Internet, and felt that things were a bit complicated: upper end cover, lower end cover, mirror body, central axis, prism spacer...

Mo Dou silently changed the keyword: a simple structure diagram of the telescope.

Yes, that???s right, the principles of binoculars and monoculars are actually the same. They both use the small hole imaging principle of the light refracted through the lens to converge the image, and then use a magnifying eyepiece to magnify the image, and the ink fountain What I have to do is to relearn the knowledge in junior high school, such as what is the focus and distance, and then apply it to practice.

And then, the ink fountain started the endless friction - he had to grind all these strange-shaped glasses into convex lenses.

This is already the seventh convex lens made by the ink fountain. The previous ones were worn out by him, and the latter ones were worn too thin, which made the ink fountain a bit of a headache. The drawing looks quite simple, how to put it into practice Is it that difficult?I don't know when it will be finished and I will go to Ying Zheng...

Seeing that Mo Dou was so distressed, Mu Mu hesitated for a while, and finally decided not to avoid suspicion. He got up and walked to Mo Dou, picked up the slightly crumpled drawings from the ground, scratched his head, and said, "Adou, your drawings..."

Mo Dou didn't even raise his head: "What's wrong?"

"I seem to be able to create..."

"Huh...huh?!" Mo Dou paused, and accidentally punctured the blister on his hand, causing him to gasp in pain, but Mo Dou didn't have time to take care of this, he suddenly raised his head and repeated Mu Mu's words, " Can you make it?"

Speaking of which, the principle of pinhole imaging has been discovered by Mozi during the Warring States Period...

Mo Dou's eyes were shining, and he pulled the other party to sit down with one hand, while holding the wound in his mouth: "Tell me quickly."

Mu Mu blinked and sat down. He skillfully picked up the lens made by the ink fountain and made gestures. Then he squeezed the thickness of the lens. After a pause, he said, "I guess it's too thin."

Mo Dou nodded fiercely. Indeed, he had only played with a magnifying glass that was like a toy at most before, so he ground it according to his impression at the beginning, but of course it failed, because the focal length was too short.

Mu Mu laid out the drawing of the ink fountain on the table, took out another piece of white paper, picked up the pencil with an unskilled posture and drew the image formed by the small holes on the paper. Although his father said that he would not understand Mohism However, Mu Mu surpassed his father in learning various skills of the Mohists!

For example, Mozi once proposed the principle of small hole imaging, and the wood was restored through an extremely abstract text description, and through Mozi's explanation, he completely memorized this physical principle in his mind, and the ink fountain The drawings after 2000 even penetrated the wood all at once.

Now the roles of the two people have been reversed, becoming a wood grinder with his head buried in the glass, while Mo Dou is watching eagerly from the side.

Wood is obviously much more open and closed than Mo Dou. He is different from Mo Dou who lived frugally and practiced crafts when he was a child. And the wood is quite bold, as if he didn't know the value of the glass, he directly chose the big ones, and even disliked the small ones.

"The rest are useless, Ah Dou, hurry up and get some bigger ones."

Mo Dou: ...Wood, to be honest, do you also wear it?

In this regard, Wang Jian is quite generous. You may not believe it, but there is a large amount of colored glaze hidden in the army of the Qin State???all of which are used to bribe the enemy.

Mo Dou held two large boxes of 'Flawless Glass' in his hands, and suddenly had an illusion that in fact, Qin has always used money to smash enemies to death, right?Right!

??????

Zhao State, Handan.

Not only Mo Dou received the great gift from Wang Jian, but Guo Kai also received it. All the money that Ying Zheng had worked so hard to save before was thrown on Guo Kai by Wang Jian, and Guo Kai was smashed directly to the opponent's father.

There was still a hole on his head that the ink fountain had smashed with a stone slab, and his eyes and hearts were full of money, cloth, and various precious stones. He asked uncertainly, "All these belong to me?"

"Of course, General Wang Jian said that these are just small gifts for meeting. If the country agrees, there should be more generous gifts."

The person who persuaded Guo Kai was not Wang Jian's person, but the secret agent sent by Li Si early, and Qin's hard work for many years gradually showed results.

However, Guo Kai didn't immediately agree. His mind is definitely good enough to be able to sit in the position of Prime Minister. He naturally understands the reason why his lips are dead and his teeth are cold. Let's not say that if Zhao Guo is destroyed, he has money but no life. In terms of Wanbu, Li Mu himself is a boring gourd, there is no threat to his existence at all, and he doesn't need to work hard to get rid of him.

Xi Zuo glanced at Guo Kai's expression, rolled his eyes, stepped forward and whispered to Guo Kai: "Xiangguo, I heard that Qin State has produced a new kind of colored glaze, which is clear and flawless, comparable to Heshibi. Under the white light, there are seven colors, and the palace is full of clouds."

Guo Kai's heart moved, he stretched out his hand, stroked back and forth on the silky silk for a long time, and said calmly: "I don't believe it."

"Xiangguo, this is true," pretending to be anxious, he looked around cautiously, and then said in a low voice, "It is said that there are only two yuan in Qin State, which was given to Wang Jian by King Qin, but Before General Li Mu defeated Wang Jian, King Qin took back another piece, now that Wang Jian has a request from you, why doesn't Xiangguo take this opportunity to ask for it?"

It should be said that this person is worthy of being selected by Li Si. He said that Wang Jian's box full of glass was comparable to Choi Bi. Guo Kai was very moved by what he said, and he took advantage of the opportunity to pursue it .

"Even if it is because of this, Zhao Guo was destroyed, so what, Xiangguo is holding a lot of money and still has nowhere to go. Seeing that Cheng Xiao, even if he fled from Qin to Zhao, wouldn't he also have a land seal?"

Guo Kai's hand paused, that's right, anyway, he is rich and well-informed, he is fully capable of leaving after making a fortune in Zhao Guo, and it is not impossible to come back when the future is peaceful...

Personal interests finally defeated the interests of the country. Guo Kai stood up, and the soft silk unfolded slowly in his hands. Under the sunlight, it was very bright and radiant. Liuli is like the treasure he lost a few days ago.

"Then tell Wang Jian that if you want Li Mu's head, you can exchange it with rare colored glaze!"

??????

boom!

The legendary rare glass was thrown aside mercilessly, and after a few rounds of grievances, it barely stopped.

The ink fountain reselected the one that seemed more suitable among the large and small convex lenses, adjusted the distance according to the focal length recorded above, wrapped it with soft paper to barely serve as the lens barrel, and looked outside, Wang Jian's huge The face suddenly appeared in front of her eyes, so frightened that Mo Dou stepped back and hit the back of his head.

Wang Jian turned pale with shock: "Did you crash, sir?"

"It's all right," Mo Dou covered the back of his head, turned his head and said to Mu Mu, who was still grinding his lenses, "It's almost done, it's these two!"

When Mu Mu heard this, he quickly put down his work, stood up and took the lens in the ink fountain, carefully recorded the thickness and size, and then began to mutilate the glass of the box. This time he wanted to choose the largest and most transparent pair of glasses. come out.

And Mo Dou also started to make the lens tube according to the data. As long as the last step, the telescope will be done: "The general came just in time, wait a little longer, and I can show the general something interesting."

Wang Jian looked at the busy and excited two people, and couldn't help but began to look forward to it: "Sir, I'm willing to wait a little longer, but I want to take a piece of colored glaze when I come here this time."

Mo Dou immersed himself in chopping wood: "The general can take whatever you want, except for the two pieces just now."

Wang Jian smiled: "That's not necessary, it's just that it's best to produce seven colors. There were a few pieces of colored glaze like this before, and I don't know if there are any now."

Colorful?Isn't that the prism effect?

Before Mo Dou could think too much, the wood had already polished the glass, so Mo Dou hurriedly finished the work in hand: "Of course there are, if not, I can make one for the general."

Wang Jian nodded and said, "Then there will be Mr. Lao."

Mo Dou smiled, and finished the last step of work at hand, and there was no time to polish it. Mo Dou inlaid the lens in the wood's hand into the wooden cylinder, and found a glass like a triangular prism in the box. He held the two objects and looked at Wang Jian Said: "The general will follow me out to have a look?"

Wang Jian raised his eyebrows and nodded immediately: "Okay."

Soon, the three of them boarded the lookout tower in the barracks, Mo Dou looked up at the sky, it was afternoon, and the sun was shining brightly.

He raised the prism in his hand and carefully adjusted the angle along the sunlight. Under the watchful eyes of Mu Mu and Wang Jian, colorful light suddenly appeared on the shadow. , only following the human instinct to love beauty and chasing colored light.

It was Mo Dou who came back to his senses first, and he put away the prism and handed it to Wang Jian: "This is probably the colored glaze that the general said."

Wang Jian took the glass carefully, and hurriedly adjusted the colorful sunshine, while Mu Mu watched eagerly, as if he wanted to snatch the glass and study it, but the other party was a general, even if Mu Mu had the guts, I can't even grab it.

Mo Dou smiled, coughed dryly, and drew the two people's attention back: "It's just a gadget, what I hold is what the general will really like."

After all, Mo Dou put the binoculars in front of his eyes, and then he couldn't take down the binoculars anymore. He was just showing Wang Jian how to use the binoculars, but he didn't expect to see a scene that he would never forget in his life. I can't tell whether this is just a virtual image presented by the mirror, or a reality that has traveled through time and space.

At that moment, everything was at the most perfect node: there were just two beams of light in the universe, one beam of prism-shaped crystals turned into seven-color rays of light and shone on the telescope, forming the world of Mo Dou. It is stained with colorful psychedelic; another beam comes from a distant star, and after being reflected, it passes through two convex lenses, printing the figure of Ying Zheng leading the army on the retina of Mo Dou, and then transmits it to the brain. Into the deepest memory.