Just as he was thinking, Li Shimin's voice rang out. "Feng Zi, since you know about my father's eye problem, then quickly help him."
In fact, he knew about Li Yuan's problems, but the imperial physicians in the palace were useless. They had treated him countless times, but there was no effect. Now that Feng Zi's lens actually had an effect, he definitely needed the other party's help.
Zhang Feng could understand what Li Shimin and his son were saying, so he was naturally happy to help. After all, this resin was not worth much. It was just that the experiment had not been completed yet, so he said, "Lao Li, Old Master Li, there is no problem with what you said. It's just presbyopia. However, the lens experiment has not been completed yet. After the experiment is successful, I will make a pair of glasses for Old Master Li, and it will be completely solved."
"Presbyopia? Glasses?
Li Yuan and Li Shimin looked at each other, a little confused, and asked, "What are these things?"
Zhang Feng forgot a problem. These words were too old, these guys did not understand, so he casually explained, and the two suddenly understood.
But at this time, Alkinnon came back with the brush.
Zhang Feng did not talk much with the others. After all, making a telescope was important, so he casually sat on the stool and began to polish it.
Cheng Yaojin asked for a rebuff, and it was not good to be thick-skinned and look, so he called Cheng Chumo to inquire. At first, Cheng Chumo refused, but when he saw that Feng Zi's thing was quite novel, he went over without waiting for his father's outburst.
Li Shimin and Li Yuan, the father and son pair, did not need to be said. They had been in the palace all year round, and now that they saw such a powerful thing, they naturally did not want to let it go. Moreover, this thing was related to Li Yuan's eyes, so the two gathered in front of Zhang Feng like curious babies.
After about the time it takes to burn a stick of incense, Zhang Feng stopped what he was doing and stretched. "It's finally done."
Cheng Chumo couldn't wait to ask, "Fengzi, how is it?"
He was now looking forward to the result, because he already knew that his damned old man wanted to use him to fulfill the bet. If Feng Zi really succeeded, then he would have to kowtow to Feng Zi. This was something he didn't want to see the most. Therefore, he didn't want Feng Zi to succeed.
Zhang Feng didn't know about this. He just thought that this guy was curious, so he said angrily, "What's the hurry? I haven't read it yet, have I? "
As he spoke, he picked up the lens and placed it in front of his eyes. The corner of his mouth unconsciously raised into a smile. Obviously, the effect this time was better than before. Not only could he see things clearly, but he could also magnify things that were far away.
Zhang Feng's smile quickly attracted Li Shimin's attention. He asked curiously, "Feng Zi, how was it this time?"
"Come, give it a try."
Zhang Feng smiled and handed the lens to Li Shimin.
Li Shimin couldn't wait to take it. When he put it in front of his eyes and looked at it, he instantly felt uncomfortable. The effect was not just a little bit different from before. It was like the difference between heaven and earth. Now, not only could he see things clearly, but he could also magnify things that were far away.
He put down the lens and looked at Zhang Feng in surprise. "Feng Zi, how did you do this?"
Zhang Feng raised his head and said proudly, "This is just a small trick. The lens hasn't been completed yet. It still needs to be polished. When the two lenses are put together, you will know the effect."
Hearing Feng Zi's words, Cheng Chumo couldn't help but be curious. He quickly said, "Can you show it to me?"
Hearing this, Li Shimin handed the lens to Cheng Chumo. Cheng Chumo took it and put it in front of his eyes. He knew that something was wrong because he saw a very clear image. Didn't this mean that he had to kowtow?
Thinking of this, his face became bitter. He couldn't help but blame his father for tricking his son. He was also angry that Feng Zi had made such a magical thing. However, he couldn't do anything about it. He could only give the lens back to Zhang Feng and smile bitterly.
Zhang Feng seemed to have noticed Cheng Chumo's abnormality. However, he didn't pity this guy. Who asked Old Chen to make a bet? It was too late for him to realize his mistake now.
He handed the lens back to Arkinnon and said seriously, "Continue to polish it according to my method. Then, make five more identical lenses. Give them to me when you are done."
Arkinnon nodded, took the lens, and left. He had seen the dean's process and had roughly memorized it. It wouldn't be a problem for him to make some.
Zhang Feng naturally believed in Arkinnon. After telling him everything, he sat back on the stool, as if none of this had anything to do with him.
However, everyone's curiosity had been completely aroused. How could they be dismissed by these two sentences?
Li Shimin came up to Zhang Feng and said with a smile, "Feng Zi, if you succeed, how far can you see?"
He had just seen that he could clearly see small things within five meters. If he could see further, he might be able to use it in industry or military, which would be beneficial to the Tang Dynasty.
Zhang Feng seemed to have seen through Li Shimin's thoughts. He said with a smile, "Lao Li, are you thinking of something?"
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