Then she noticed that the smoke from the furnace had become lighter, and she came closer. Pen Fun Pavilion wWw. ｂiquge。 ｉｎfo

The gray-shirted man turned around, his cat-like face was full of surprise, as if he had not noticed anyone behind him beforehand, and exclaimed, "Ah......! Liang Sheng, it's you. ”

Liang Sheng smiled and prompted: "Mr. Fang, this is the eldest lady of the General's Mansion, Chen's Zhen'er. ”

The gray-shirted man looked at her, stunned for a moment, and then hurriedly wiped his face with his sleeve, stepped forward, and said politely: "I've seen the eldest lady." ”

She winked kindly, and the pear was smart, and immediately handed the scarf around her waist to the man. She remembered that Pear had helped her wipe her sweat before, and the towel was not very clean. The man didn't mind, and wiped his face after taking it. Always return and wipe his face covered with soot.

"I don't know what the eldest lady is looking for me?" The man was transparent, thinking that she must have something to ask for to be recommended by Liang Sheng.

She looked at the man. The man's figure is weak, and his clean face is full of bookish gas, but there are many mottles on his hands, and if you don't see it, you can imagine that the palms must be full of calluses. Listening to Liang Sheng, he once won the fame in the examination, the title of the gold list, and aspired to become a civil official, and he was a prince guest in the imperial study at the beginning. Although he was young, he was only in his early twenties when he entered the office, but he was knowledgeable and knowledgeable, and half a year later, the emperor intended to mention him as a young master, and the eldest princess who was in the prime of life and the fifth princess who was a little too young were favored by him, and the emperor intended to marry him......

"Mr. Fang, I just saw that you were busy, what kind of work did you have?" she asked curiously.

Mr. Fang was really interested, turned around and took out a piece of something that had just cooled, showed it to her like a treasure, and said, "The telescope I made first can only look at two miles at most, and it will be blurry three miles away. I was wondering if if I could make a single tube into a double tube, it would work further. ”

When she saw it, her face was also excited. What Mr. Fang was holding in his hand was still a prototype, but compared to binoculars, this prototype could be slightly changed to meet her purpose here.

She first sold Mr. Fang's favor and reminded: "If you want to see farther, there is not much difference between the distance and proximity of monocular and binocular use, but it can be called a wider plane viewing angle." To see further, you need to elongate the sight tube to be effective. ”

Liang Sheng, Lizi and Meizi couldn't interject anymore.

Mr. Fang listened to her explain with great interest a series of advancements such as the objective lens, eyepiece, secondary focusing in the center of the barrel, the addition of orthodontic tubes, and the height adjustment knob. Mr. Fang originally designed it to be easy to carry on the march, and has been working to reduce the size of the telescope. With only two lenses, no matter how thick or small the lens is adjusted, the length of the lens barrel is limited, and he can no longer enhance the performance of the telescope. If you want to keep the length of the lens barrel unchanged, then adding a lens in the barrel for focusing can forcibly pull out the angle of view and achieve the goal. It's just simple junior high school physics knowledge.

Mr. Fang understood quickly. I understood, and I was excited to make one immediately.

She hurriedly said, "Mr. Fang, you are slow. Actually, I did have something to ask for this time. ”

"Miss, if you have anything to say, Fang will spare no effort if he can help. Mr. Fang felt that he deserved to be refreshed by her favor.

She explained to Mr. Fang the principle of myopia glasses.

Mr. Fang can make a telescope, which is also a frustration, taking a walk on the beach and inadvertently making a stove in the sand. After dinner, the fire was extinguished, and it was found that the gravel had formed a transparent crystal-like grain. Curiosity starts, and when I look closely, I find that I can see things through irregular transparent stones, and the size of the things has changed, which is very magical. The frustration of going to the beach was replaced by the curiosity aroused by this discovery. Since then, Mr. Fang has been obsessed with burning sand to refine transparent crystals, and has invented the original prototype of the telescope, which is actually a simple magnifying glass. He reported that he was sick at home a few months, and the emperor was sympathetic, and after too long, he still arrested him back to the palace for inquiry. Mr. Fang presented his latest prototype of a real monocular, which he said could help the march. The emperor was overjoyed. Since then, Mr. Fang has been in the Quartermaster Department.

Mr. Fang has been working on improving telescopes, and the principle of myopia lenses is also explained to him as soon as he is transparent.

It's a bit difficult, it's hard to test the degree of myopia for Meizi, and it's not easy to grasp the thickness adjustment of the lens. But it's easier said than done. Mr. Fang is not afraid to do it a few more times until he makes the most suitable plum.

Just do what you say. Mr. Fang told them to wait on the spot.

The kiln was turned on again.

Meizi had been listening to it just now, although she didn't know what myopia was, she always heard that Miss had come to Mr. Fang for her this time. Meizi was grateful, curious, and a little expectant of what Mr. Fang would do for her.

"Look, you're in a hurry. The little eyes were warm, and he stared at Mr. Fang. I don't know, I thought you were ...... Mr. Other," she teased Meizi.

Meizi was a little embarrassed when she heard this, and hurriedly waved her hand to defend: "I'm not......! I...... Miss, is it only me who can't see things in the distance?"

Pear interjected and laughed, "How far does that have to go." We can't see anything really far away, but we can't see anything close to our feet, and we can trip ourselves up and down, only you are a little confused. ”

Pear smiled, and her face was a little sullen.

Pear and Plum have a good relationship, and they get along all day and night, but they are angry that they haven't found out that Plum is so clumsy because they can't see things clearly. She didn't find out, but she asked the eldest lady to find out. It's not that the eldest lady is more careful, but that the eldest lady really cares about them. Come to think of it, the eldest lady treats the plums so well, and the pears are also warm in her heart.

Liang Sheng also asked her at this time: "You saw the telescope made by Mr. Fang once in my room last time, and you knew that Meizi was ...... 'myopia?' and thought of asking Mr. Fang to make myopia?"

She replied without a flicker, "Yes." ”

Liang Sheng was stunned for a moment, his eyes wandered, and surprise, questioning, and admiration flashed...... I got the letter. Where could he have thought that this knowledge that he had never heard of was just common sense in her previous life. It's common sense for her, but no one has invented it here. Liang Sheng asked, and there was nothing wrong with her answering. As for whether Liang Sheng misunderstood that these were all invented by her ingenuity, she didn't intend to explain.

At this time, Mr. Fang was already able to make sand and make glass, and invented the telescope. She thought to herself, she just mentioned a few words, and asked Mr. Fang to also make myopia glasses, it shouldn't cause any bad effects, right?

Lenses are easy to make. But the frame design she gave Mr. Fang was too slim. After it is made, it is natural and convenient to wear the plums, but it is not easy for Mr. Fang to do it at this time. He wasn't a blacksmith after all. I finally made a shelf, but it was too rough to use at all.

There was no way, so Mr. Fang had no choice but to propose: "No, otherwise this is the case, eldest lady, you should go back first today." Later, I went to ask Lao Tie to help me make this shelf. When I'm done, I'll send the glasses to the house. ”