Naturally, it is Cheng Zhijie who wants to buy, and this is his purpose today.

He is really filial and wants to get a lamp for the old lady at night.

"I'm sorry, General Cheng, because this is the first unit, it's actually an experimental product, and there are still many things to improve."

Tang Ping still refused, he didn't tell a lie, this thing hasn't been stress tested, who knows if it will suddenly explode when it works?

He is not a professional, and this thing is also a drawing found on the Internet, and then groped with the Wang Tieniu brothers to create it.

You always have to try more to know if there's a problem.

explained the reason clearly to Cheng Zhijie, and he had no choice but to give up.

However, Tang Ping said that Cheng Chumo made more pedal generators, and now they are the first to assemble them, and the later ones will be fine.

Is that thing dangerous, at most it's just tiring.

"Dad, why did you buy a lamp?" Cheng Chumo was curious, and then he suffered another brain.

"Your grandmother wants to knit a sweater for your bastard, and you are embarrassed to ask, you unfilial son!"

Cheng Chumo is used to being beaten, he hasn't been back for more than a month, he doesn't care if he is beaten twice, when he hears his father explain the reason, his eyes lit up and he said, "Dad, in fact, I still have a way to generate electricity!"

As he spoke, he ran back to his dormitory, and then took an apple out, and inserted an iron sheet and a copper sheet into it, and a small light bulb connected to the two metal sheets lit up.

"Dad, you see, this is the fruit I found out to generate electricity according to the lesson of Yin Shanhou!"

Cheng Zhijie looked at the bulb smaller than a fingernail and the faint light, and said disdainfully, "You can also call it a lamp?"

Is this bullying him, Cheng Zhijie has never seen the world?

"Dad, don't say that, the so-called small amount adds up, as long as you get more fruit, you can make a light that makes a milk-knitted sweater a problem, and you don't need to step on it with manpower!"

Cheng Chumo looked proud, and then saw Cheng Zhijie looking left and right to find something, he was familiar with this rhythm, once he had something to take advantage of, he should be beaten.

"Daddy, Daddy, what are you doing?"

"What? Do you know how much fruit costs? These fruits are sold, and if you invite someone to step on the generator, you can step on it for three days and three nights! How about Lao Tzu

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Why did you give birth to such a fool as you?"

I have to say that Lao Cheng is still more reliable than Xiao Cheng, the fruit battery or something, it was originally an experiment mentioned in Tang Ping's lecture, but I didn't expect Cheng Chumo to take it seriously, and he planned to really use it for power supply and lighting.

"Do you sometimes read paperwork or something, and it's not very clear?" Tang Ping didn't care about the two of them, and turned around to ask Fang Xuanling.

"Sort of." There is nothing to hide, Fang Xuanling nodded: "Now that I am older, my eyes are indeed not as good as they used to be."

"Then go to me, I'll give you something!"

Cheng Zhijie held down Cheng Chumo and hit him twice, and then told him to hurry up and install a pedal generator, take him away after a while, and then follow.

As the saying goes, half of the meeting is divided, Fang Xuanling, this guy can share a generator is stained with his own light, and now Tang Ping wants to send him something, of course he can't be left behind.

Tang Ping knew his thoughts, and he didn't say anything, took the two of them across the bridge and returned to the convenience store, took out a thing, and asked Fang Xuanling to put his chin on it.

"What is this?" Cheng Chumo looked at the thing that was countless times more exquisite than the steam engine just now, and knew that this thing must not have been made in Datang.

"Optometry!" Tang Ping thought for a moment and explained, "I just know if there is anything wrong with your eyes."

This is a few days ago, when Tang Ping found that the old man in the village was idle, and he was reading the newspaper that his grandson read to him, he found that the old man could not see clearly when he was close, and he could only see clearly when he was far away.

knew that it was presbyopia, so I bought a refractor and gave Lao Zhoutou a pair of glasses.

At that time, I thought that there were many people who needed this thing, so I also bought a lot of glasses of various powers.

After this test, Fang Xuanling is not presbyopia, it is estimated that he often reads at night, and his eyes are short-sighted, but the degree is not high, and it is only 300 degrees.

From the glasses he bought, he picked out a pair of glasses that were suitable for Fang Xuanling's degree and handed it to him.

"You put this on and try it."

It's not like an optical store with eyes, and you can choose a frame or something, Tang Ping's here is a fixed style, a black plastic frame.

Fang Xuanling took it curiously, and then the whole person was stunned.

Pulled down his glasses with both hands and looked around,

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Pull it up again, then pull it down again.

"What are you doing here?" Cheng Zhijie saw that Fang Xuanling was behaving strangely, and he also took one from Tang Ping's box of glasses, and without waiting for Tang Ping to warn him, he learned from Fang Xuanling and put it on the bridge of his nose.

Then he stumbled under his feet, holding on to the table on the side with one hand, and took off his glasses with the other, feeling a little dizzy.

"This ...... What is this thing for? I get dizzy when I put it on!"

Tang Ping took the eye back from his hand angrily, it was marked with a degree of 800, you said that you are a person with normal vision, with myopia glasses of such a height, can you not get dizzy?

This is thanks to Tang Ping when he was a child, he secretly took his father's myopic glasses at Gou Shaoqun's house, and then rolled down the stairs directly, and fell a copper coin scar on his knee.

There's still a little mark on it!

"Thank you!" At this time, Fang Xuanling finally got used to the glasses, he couldn't remember how long he hadn't seen so clearly, he usually saw something, even with his empty eyes, he couldn't see it so clearly.

The second monk of Cheng Zhijie was puzzled: "Do you get dizzy when you wear this thing? Don't dazzle?"

Tang Ping said to him: "This is called glasses, which were originally dazzling and can be seen more clearly, but like General Cheng, who has normal eyes, he will spend when he wears them."

"Then give my wife a pair, how much, I'll give the money!" Cheng Zhijie's eyes lit up, and his wife's eyes were getting worse and worse.

"You have to refract," Tang Ping pointed to the optometry, "Just like Fang Xiang just now, put your eyes on this, and after the test is out, you can know which pair of glasses is suitable according to the situation!"

"In this case, Yinshan will wait for a while, and I will go and pick up my mother." Cheng Zhijie said that he would go, and he got on the horse and ran in the direction of Chang'an.

"General Cheng is indeed a dutiful son!" Fang Xuanling said while holding on to his glasses.

Tang Ping nodded, and took out a bottle of eye drops and gave it to Fang Xuanling: "Fang Xiang usually pays attention to rest with his eyes, and he can rest for a while when it is close to an hour, and you can put two drops of this in his eyes."

"In this way, thank you for the Yin Mountain Wait!" Fang Xuanling was not polite, and directly took it and put it in his pocket.

(End of chapter)

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