Transmigrated into a female county magistrate during a famine, leading her country to prosperity

Myopia is not serious, and it is not even considered a disease.

You can say it's not serious...but it still affects your life a little.

Shen Zheng was short-sighted in her previous life and had passed by people she knew many times without realizing it, earning her the nickname "aloof" and "unsociable".

God is my witness, she really couldn’t see clearly - if someone was walking towards her, wouldn’t it be a little too abrupt to stare at that person’s face?

She is no longer nearsighted in this life, but she still remembers the feeling of seeing things with empty eyes.

Shen Zheng walked all the way to the county government office, his mind full of the production process of glasses lenses.

——The principle of myopia lenses is concave lenses, while the principle of hyperopia glasses is convex lenses.

We know the principle, but what about the materials?

Shen Zheng almost went through all the books he had read in his mind, and when he was halfway through the journey, he finally got the answer.

Eye lenses can be roughly divided into three types of materials: synthetic resin, glass, and natural transparent minerals.

Natural transparent minerals are excluded first.

Things with the word "natural" in the prefix may be able to be sold in large quantities and at a low price, but if the word "transparent" is added to the end, the price will rise sharply.

If this thing were in the Great Zhou Dynasty, it might have to be renamed as gemstone.

Shen Zheng didn't know much about the gem market, but she knew that this must be a great treasure that was priceless.

With such a high price, how many students can use it? If it were Shen Zheng, she would choose to continue to be a virtual eye.

The only available materials are synthetic resin and glass.

Synthetic resin...compared to making glass, it is a big project, but its advantages are also more prominent, and it is still the preferred material for making glasses.

But Shen Zheng felt a headache just thinking about the industrial raw materials, production equipment and complicated production processes.

Thermoplastic resins such as acrylates and polycarbonates all need to be synthesized by reacting other chemical materials.

Other chemical raw materials, such as carbon oxychloride, need to be synthesized from other chemical raw materials. If this continues, I am afraid that we will have to list the periodic table of chemical elements and then start synthesizing raw materials from the most basic hydrogen, helium, lithium, beryllium and boron.

but......

What about the system?

Can the system exchange these chemical raw materials?

Before she knew it, Shen Zheng had returned to the backyard of the county government office.

Yu Shizhang appeared in front of her without her noticing, stretched out his hand and waved it in front of her, "What are you doing, girl?"

Shen Zheng came back to her senses, stared into Yu Shizhang's eyes and asked, "Uncle, are you nearsighted?"

"Myopia?" Yu Shizhang was confused by her question, "What is myopia?"

"I can only see things that are close to me clearly. The farther away I am, the less clear I can see. And it will get worse and worse!"

"Oh——" Yu Shizhang understood, "You mean short-sighted? Benbo doesn't have it, but Zhengqing has some, but he can't see clearly when it's far away."

Shen Zheng recalled Yu Zhengqing's usual appearance and really couldn't tell.

She nodded and asked, "What about farsightedness? Do you have it?"

Yu Shizhang drew inferences from this and immediately understood what farsightedness meant. He nodded slowly, "We old guys all have some of this. We can't see clearly when we are close, and we have to look far away to see clearly. I have a good friend who retired because of this. If he can't see the official documents clearly, he has no face to continue to eat."

He touched his eyelids and suddenly looked at Shen Zheng: "Why do you ask this? But do you have a way to cure our eyes?"

If there is! Then he would have a way to trick people, oh no, coax them back to the court.

"No, no, no." Shen Zheng waved her hands repeatedly, "How can this subordinate have such ability?"

Femtosecond surgery is still in the exploratory stage, so how could she dare to say that she can cure myopia and hyperopia.

Yu Shizhang was a little disappointed when he heard this.

I really thought Shen Zheng was omnipotent.

The next moment he heard Shen Zheng say: "If we can find the materials to cure my eyes, I dare not say, but there is a way to rely on external objects to see things clearly."

"What external object?" Yu Shizhang became interested as soon as he heard it.

If he could see things clearly again, he would be willing to spend a lot of money! I'm sure those old guys would be willing too.

"Put it in front of your eyes." Shen Zheng raised her hands and gestured to him like a pair of glasses. "You can see clearly through this thing."

Yu Shizhang was amazed, but also confused: "Then this object must be transparent and colorless?"

How else can you see clearly? You can't just make a hole to see through.

"My Lord is really smart!" Shen Zheng flattered him and was about to leave. "I won't say more to you. I can only say that you should not hold out too much hope for now. I am also in the exploratory stage. Whether it can succeed or not depends on whether the raw materials can be collected!"

"Wait a minute!" Yu Shizhang was so anxious that he grabbed her arm and said, "What raw materials do you need? Tell me first. Although I may not recognize those things, as long as you describe them well, I will send people to find them no matter where they are!"

Look at how rich he is!

But what should Shen Zheng say? Should she say she wanted acrylic or polycarbonate?

It's totally unrealistic.

She could only answer hastily: "I just thought of it, and I am still exploring the specific materials. Please wait for me to figure it out."

“Hey, you—” Yu Shizhang blew his beard, “Don’t even mention the eight characters of your case. You haven’t even found the pen and paper!”

Shen Zheng grinned, "It's about the same. So don't expect anything yet. Once I have a rough idea of ​​my fate, you can expect the finished product."

“Well…” Yu Shizhang let go of her sleeves in disgust, “In your words, what is this called… drawing cakes for Benbo!”

He curled his lips, walked away with his hands behind his back, and said, "I don't need lunch today. I am already full from the cakes that Shen Zheng drew."

Shen Zheng looked at his back as he left in a leisurely manner and slapped herself on the lips.

"Look at the quick-talker, he's just spilling everything."

......

Yu Shizhang eventually broke his "oath" and met Shen Zheng unexpectedly in the public kitchen.

He blew his beard and deliberately chose a seat diagonally opposite to Shen Zheng to sit down.

Yu Nanshu took a look and found something was very wrong.

She rubbed against Shen Zheng's side and whispered in her ear, "Sister Shen, did you have a fight with your grandfather?"

Shen Zheng secretly glanced at Yu Shizhang and immediately shook her head: "God is my witness, how dare I. I think Uncle is hungry. Uncle Lai! Uncle Lai! Everyone is here, we can have dinner!"

"Eh--"

Uncle Lai walked out of the kitchen carrying a large pot. White mist rose from the pot, instantly blinding everyone's eyes.

The pot contained the Liuyang Prefecture's special hotpot. If Shen Zheng were to describe it in plain language, it would be a huge hodgepodge.

As long as the various meat dishes do not conflict with each other, just add them all.

"Here comes the pot!" Uncle Lai put the big pot on the table, and the aroma immediately filled the air. "In winter, you must eat pot. Eating it will warm you up from the top of your head to your toes! Use it quickly!"

"It smells so good!" Fang Ziyan knocked on the bowl greedily.

"Don't knock on the bowl!" Yu Nanshu stopped him immediately, "Knocking on the bowl will make the beggar come."

Fang Ziyan immediately behaved himself and waited obediently for Yu Shizhang to start eating.

But where do the beggars come from in Tongan County?