“…… When the objective lens will be distant light convergence at one point, at this time in the back of the eyepiece, and the distance between this point and the eyepiece, is exactly equal to the focal length of the eyepiece, I told you before, the light from the focal point, through the convex lens, will become a beam of parallel light, the distant scene will be imaged, and into a magnified image, as for how many times magnification, it depends on the ratio of the focal length of the objective lens to the focal length of the eyepiece, in addition, this tool that can see distant objects, I call it a telescope! ”

In the classroom, Li Zexuan's first class in Yanhuang Academy was gradually coming to an end, and after half an hour of talking, he finally explained the principle of the telescope to the two people in front of him, of course, only the principle of the Kepler (composed of two convex lenses) telescope, as well as the Galilean type (a convex lens, a concave lens) telescope and some reflective telescopes.

"Oh~! It turns out that there is such a big knowledge in this small lens, and I didn't expect that kind of clairy-like tool can really be made! Mountain chief, you can be really knowledgeable~! ”

As the saying goes, it's better to be famous than to meet, although Mo Lingwei had heard that Li Zexuan was very powerful from Mo Zhong and them, but at that time, Mo Lingwei felt that she was not bad, because she was a "little overlord" in the Mo family.

But after listening to what Li Zexuan said today, she realized the gap between herself and Li Zexuan: although she knows a lot about the various knowledge of the Mo family, many of them only know what they are, and she understands that those things are very complicated, and there are all kinds of categories; But Li Zexuan seems to have a complete set of knowledge system, no matter what the problem is, he can trace back to the source and explain it completely clearly, which makes Mo Lingwei have to admire, she thinks~!

"Hehe~! When you two have free time, you can take a look at the physics textbook of the academy, although this first volume does not cover much in lens imaging, some basic concepts are still very useful for making telescopes! ”

Li Zexuan put down the chalk and smiled at the two of them while clapping his hands.

"Uh-huh~! I'll take a look when I get back~! ”

Mo Lingwei replied with a smile.

Yan Shaoning hesitated for a moment and said, "Xiao Xuan, you will give me a set of all the textbooks of the academy when you go back, I also want to see it~!" ”

Li Zexuan agreed, and then he thought about it and said, "After telling you the principle of the telescope, I have a task to hand over to you~!" ”

As soon as she heard that there was a task, Mo Lingwei suddenly sat up straight and said, "Mountain chief, you say, let's listen~!" (The tragic Yan Shaoning was unconsciously represented)

"In this Guanghua building, the central main building connecting the twin towers on both sides, in the middle of its fourth to sixth floors, there is an atrium with a semicircular glazed ceiling at the top, do you know why I designed it in the first place?"

Li Zexuan propped up the lectern with both hands, looked at the two in front of him, and asked.

Yan Shaoning frowned, falling into hard thought, Mo Lingwei thought for a while, and shook her head directly: "I don't know, when I first saw it, I thought that the atrium of the transparent zenith was specially used to lie down and watch the stars at night~!" ”

"Smack~!"

Li Zexuan patted the table and said with a smile: "Haha~!" Miss Mo is right, this atrium is also used to watch the stars at night~! ”

Mo Lingwei was stunned, she just said that casually........

"According to my original plan, in this atrium, a large telescope will be placed to show the stars and the moon to the students, so that they can understand what the heavenly world is like~!"

As soon as Li Zexuan said that, Mo Lingwei and Yan Shaoning opened their mouths in surprise, they had binoculars just because they were fresh and fun, but Li Zexuan was... It's about looking directly at the sky with a telescope! This........

The ancients were always in awe of the sky, so for Li Zexuan's move to directly observe the sky, the two of them were shocked and couldn't speak for a while.

Li Zexuan smiled when he saw this, and said: "Actually, the scene in the sky is not mysterious at all, when you really see it, you will understand~!" So the task I gave you two is to build this large telescope, if it succeeds, presumably Your Majesty will also reward you, and all the credit will be yours at that time~! ”

Mo Lingwei came to her senses, she looked at Li Zexuan for a moment, then shook her head and said, "No, the production method of this telescope was obviously taught to us by the mountain chief, and we can't ask for this credit!" I won't ask for Your Majesty's reward~! ”

Li Zexuan was stunned for a moment, and just as he wanted to speak, he heard Mo Lingwei continue: "Although I don't want His Majesty's reward, if we really do it, I want you to promise me a condition!" What do you think~? ”

Li Zexuan is not clear about what this girl wants? He thought for a while and said: "I know what Miss Mo wants to say, so let's do it, if you can really make this telescope, I will personally come forward to hire Miss Mo as a distinguished professor of Yanhuang Academy, only responsible for research, not for teaching, but the treatment is exactly the same as that of the professors of the academy~!" This is the biggest concession I can make~! ”

Let Mo Lingwei come forward to give a lecture to the group of adolescent girls in the academy, and Old Man Mo will probably find himself desperate~! Therefore, Li Zexuan could only let Mo Lingwei come to the academy to be in charge of scientific research.

Mo Lingwei thought about it, although she couldn't teach students, she was finally able to work in Yanhuang Academy, she didn't have to be idle all day long, and the most important thing was that she could get the treatment of a professor in the academy, which was better than her father's treatment~! So she nodded and said:

"That's good, I promise you, mountain chief~!"

"Eh, no, I haven't agreed to make a telescope with you~?"

At this moment, Yan Shaoning, who had been silent for a long time, said weakly.

Li Zexuan's heart suddenly 10,000 grass and mud horses galloped by, what a pig teammate~! The reason why he gave Mo Lingwei this task wasn't because he deliberately matched her with Yan Shaoning? Otherwise, who can't he find for this task~? But.....

Alas, this should be the legendary straight man of steel, right~?

"Hmph~! Xiao Ningzi, if you dare not agree, I will go and tell my father now that you bullied me in the office yesterday~! ”

Mo Lingwei slapped the table, got up and snorted angrily at Yan Shaoning.

When Li Zexuan heard this, his eyes straightened, what do you mean? Dare to love Yan Shaoning, a sullen man yesterday, and pulled other girls to the office to do embarrassing things~? Hey, this kid can~!

Yan Shaoning couldn't stand Li Zexuan's meaningful gaze, and hurriedly got up and explained: "Miss Mo, you can't talk nonsense~!" Where did I bully you~? ”

"Hmph~! I said yes, do you say my dad believes in me, or does he believe you~? ”

Mo Lingwei crossed Xiao Man's waist and said.

Yan Shaoning suddenly finished speaking, and after a while, he could only admit it: "Okay, okay, then I'll help you make a telescope together~!" ”

"Hee-hee~! That's pretty much it~! ”

The little girl's face really changed, Mo Lingwei laughed, and then saw the sky outside the window, and was suddenly startled: "Oops~!" It's so late, my dad should be worried about me, I should go home, but it's getting dark, I ..... I ....."

Seeing that she looked obviously afraid of the dark, but was embarrassed to say it, Li Zexuan said to Yan Shaoning: "Shaoning, it's so late, it's not safe for Miss Mo to go alone, you go and give her a ride~!" ”

Obviously, he is creating opportunities for his brothers~!

But I heard Yan Shaoning say sullenly: "I won't go down the mountain, I'll go back to the other courtyard in a while!" The bed on this side of the courtyard is more comfortable. Xiao Xuan, you better find someone else to send her~! ”

Li Zexuan's face was full of black lines, and he said in his heart, the straight man of steel is really destined to be lonely for life~! This thing has been single for so many years, and it is really a special mother's ability, last time the eldest grandson wanted to tell Yan Shaoning about the matchmaker, but now it seems that he should be blind! If you are single with your ability, you really can't do it~!

............................

The second update~!

There will be two shifts today and tomorrow, and another wave will break out the day after tomorrow, how many chapters of chivalry do not make guarantees, lest there be anything else halfway, what chivalry can do is to do his best! Ask for ticket and subscription support!

(End of chapter)