The one he wants to buy is naturally Cheng Zhijie, which is his purpose today.
He was really filial and wanted to give me a light at night.
"I'm sorry, General Cheng. Since this is the first one, it is actually a test product. There are still many areas for improvement."
Tang Ping still refused, and he didn't tell lies. This thing has not been stress tested. Who knows whether it will explode suddenly while it is running?
He is not a professional in this field, so he found this drawing on the Internet, and then he and brother Wang Tieniu fumbled to build it.
Always try more to know if there is a problem.
After explaining the reason clearly to Cheng Zhijie, he had no choice but to give up.
However, Tang Ping said that Cheng Chumo and the others made a lot of materials for the pedal-operated generator. Now that the first one has been assembled, they can just assemble a few of the following ones.
Is there any danger in that thing? It's just tiring at best.
"Dad, why did you buy a lamp?" Cheng Chumo was curious, and then he got hit in the head again.
"Your mother wants to knit a sweater for a brat like you, but you have the nerve to ask, you unfilial son!"
Cheng Chumo was used to being beaten. He hadn't been back for more than a month, so he didn't mind being beaten twice. When his father explained the reason, his eyes lit up and he said, "Dad, actually I still have a way to generate electricity!"
Then he ran back to his dormitory, then took out an apple, inserted an iron sheet and a copper piece into it, and a small light bulb connected by the two metal pieces lit up.
"Dad, look, this is the fruit-generated electricity I invented by myself based on the lesson taught by Yinshan Hou!"
Cheng Zhijie looked at the light bulb smaller than a fingernail and the weak light, and said disdainfully: "Can you call this a light?"
Is this bullying him? Cheng Zhijie has never seen the world?
"Dad, don't say that. As the saying goes, a little can make a big difference. As long as you get more fruits, you can make a lamp that can be easily knitted, and you don't have to step on it!"
Cheng Chumo looked proud, and then he saw Cheng Zhijie looking around for something. He was familiar with this rhythm. Once he found something he could take advantage of, he should be beaten.
"Dad, dad, what are you doing?"
"What are you doing? Do you know how much fruit costs? If you sell these fruits, you can hire someone to step on the generator for three days and three nights! How can I
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Why did a fool like you come out! "
I have to say that Lao Cheng is more reliable than Xiao Cheng. The fruit battery was originally an experiment that Tang Ping mentioned in his lecture. Unexpectedly, Cheng Chumo actually took it seriously and planned to actually use it to power lighting.
"Does the prime minister sometimes read documents or something, and it's not very clear?" Tang Ping ignored the two men and turned around to ask Fang Xuanling.
"It's true." There was nothing to hide. Fang Xuanling nodded: "Now that I'm older, my eyes are really not as useful as they used to be."
"Then go to my place and I'll give you something!"
Cheng Zhijie held Cheng Chumo down and hit him twice, then told him to quickly install a pedal generator. He took him away after a while and followed him.
As the saying goes, you get half the money when you meet. Fang Xuanling was able to get a generator because of himself. Now that Tang Ping wanted to give him something, of course he couldn't be left behind.
Tang Ping knew what he was thinking and didn't reveal anything. He led the two of them across the bridge back to the convenience store, brought out something and asked Fang Xuanling to put his chin on it.
"What is this?" Cheng Chumo looked at the thing that was countless times more sophisticated than the steam engine before and knew that this thing must not have been made in the Tang Dynasty.
"Optometry!" Tang Ping thought for a while and explained: "It just wants to know if there is any problem with your eyes."
This was a few days ago when Tang Ping found out that the old man Zhou in the village was having nothing to do, reading the newspaper that his grandson read to him. He found that the old man couldn't see clearly when he was close, and he had to hold it farther away to see clearly.
Knowing that this was presbyopia, I bought an optometrist and later gave Lao Zhou a pair of glasses.
At that time, I thought that a lot of people would need this thing, so I bought a lot of glasses with various powers.
After this test, it was found that Fang Xuanling was not presbyopic. He probably was nearsighted because he often read at night, but the reading was not high, only about 300 degrees.
He picked a pair of glasses that suited Fang Xuanling's prescription from the glasses he bought and handed them to him.
"Try wearing this."
Unlike in an optical shop where you can get your eyes fitted and choose frames, the ones in Tangping are all of a fixed style, with black plastic frames.
Fang Xuanling took it with her out of curiosity, and then she was in a daze.
He pulled down his glasses with both hands and looked around him.
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Pull it up again, then pull it down again.
"Mr. Fang, what are you doing?" Cheng Zhijie saw that Fang Xuanling was behaving strangely, so he took one of Tang Ping's glasses and, without waiting for Tang Ping to warn him, imitated Fang Xuanling and put it on the bridge of his nose. above.
Then he stumbled, holding on to the table on one side with one hand and taking off his glasses with the other, still feeling a little dizzy.
"What...what's the use of this thing? It makes me dizzy when I put it on!"
Tang Ping took the eye back from him angrily. It was marked with a degree of 800. Do you think you, a person with normal vision, can wear myopia glasses with such a degree without dizziness?
Unfortunately, Tang Ping also suffered from this when he was a child. He secretly brought his father's myopia glasses to Gou Shaoqun's house and then rolled down the stairs, leaving a scar on his knee as big as a copper coin.
There is still a small mark on it now!
"Thank you Yinshan Hou!" At this time, Fang Xuanling finally got used to the glasses. He couldn't remember how long it had been since he could see so clearly. He usually couldn't see anything so clearly even with his eyes closed. .
The monk Cheng Zhijie Zhang Er was confused: "Are you not dizzy when wearing this thing? Is your eyesight not dazzled?"
Tang Ping said to him: "These are called glasses. Originally, if you wear them, you can see more clearly, but if you have normal eyes like General Cheng, you will get dazzled when you wear them."
"Then get one for my mother. How much does it cost? I'll pay for it!" Cheng Zhijie's eyes lit up. His mother's eyesight was getting worse and worse.
"You need an optometry test," Tang Ping pointed to the optometry machine: "Just like Fang Xiang just said, put your eyes on this. After the test, you can know which pair of glasses is suitable according to the situation!"
"That's it, wait a moment at Yinshan. I'll go pick up my mother right away." Cheng Zhijie left immediately, mounted his horse in a hurry and ran towards Chang'an.
"General Cheng is indeed a filial son!" Fang Xuanling said while holding her glasses.
Tang Ping nodded and took out a bottle of eye drops and gave it to Fang Xuanling: "Prime Minister Fang should pay attention to rest when using his eyes. He should take a rest after about an hour. You can put two drops of this in his eyes."
"That's it, thank you Yinshan Hou!" Fang Xuanling was not polite and took it directly and put it in his pocket.
(End of chapter)
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209 Free reading on fitting glasses for Fang Xuanling.
