ebookland Chapter 533
Chapter 533
In the Qilin Hall, Ying Yu explained a few words, and found that everyone was still looking at him in bewilderment.
Ying Yu shook his head helplessly, and then ordered the servants in the palace to fetch the wooden box that had been prepared in advance.
Under everyone's expectant eyes, Ying Yu took out a piece of paper from the wooden box.
This is exactly a modern vision chart, with special symbols of different sizes scattered all over it.
"The writing on this Qin paper seems to be a mountain character, but it is not prominent. These characters are somewhat similar to my Da Qin characters, but they seem to be much more concise, and I can't recognize them."
Nei Shiten recognized for a long time, but he didn't recognize a single word.
Yao Jia and other well-recognized learned masters also shook their heads one after another, wondering what those hieroglyph-like things on the vision chart meant.
"My lords, you don't need to recognize it. It's just a symbol on the vision chart, not any special words. These words have no other purpose except to help measure the vision degree."
Seeing these most knowledgeable people in Daqin go to a vision meter to read words, Ying Yu was a little dumbfounded.
"So that's the case, the ministers are ignorant and ignorant, but they don't know how to measure the degree of eyesight with these symbols of different sizes?"
Nestern asked again.
"It's very simple. When measuring, you only need to hang the vision meter at a position that is at least level with the eye of the measurer, and then the measurer needs to stand seven feet away from the vision meter."
"If you are measuring the left eye, attach your right hand to the right eye and look from the first row to the last row. If you can't see clearly in that row, then the left eye's visual acuity will be the same as the scale of that row. It’s generally the same, just make a move when measuring the right eye.”
"In this way, the vision data of the left eye and the right eye can be obtained, and the glasses are matched based on these vision data."
Ying Yu replied.
Although it is said that using the vision meter to measure a person's vision, there will be a lot of deviation.
But in Daqin, where the scientific and technological capabilities are far from fully developed, this is the best way to measure eyesight for the time being.
"Since that's the case, then prince, you have to find a way to make glasses suitable for me as soon as possible. After seeing the clear world, if you want me to face the blur now, I can't do it."
Ying Zheng said with a smile.
This is entirely from his heart.
If his eyes have been aging like this, and his vision has gradually become more and more blurred, Ying Zheng can barely accept it. After all, it is human nature to be old and dim, even if he is an emperor.
But ever since he came into contact with the clear world after wearing glasses, Yingzheng can no longer force himself to continue to blur. As the saying goes, the sea was difficult for water, except that Wushan is not a cloud, and now Yingzheng feels exactly this way.
"Of course, after father's glasses are ready, I will personally send them to you."
Ying Yu smiled.
"His Royal Highness is indeed a sage of the world! These glasses are not only ingenious, but also extremely practical!"
"With the development of my Daqin's education business and my Daqin's strong advocacy of reading, students' enthusiasm for learning is unprecedentedly high. However, it also leads to an increasing probability of suffering from this eye disease."
"Some time ago, in the south of Gusu City, some students suffered from extremely serious eye diseases due to excessive use of their eyes. As a result, when walking back to school, because they could not see the condition of the road, they accidentally fell into the well and passed. How long did it take to drown and die, and this tragedy is not limited to this family."
"If these glasses can be popularized in the future, I believe this kind of thing will never happen again. This will undoubtedly have a huge effect on changing the lives of the students of my Daqin and the officials who have already entered the court. For the whole Daqin The ordinary people of the country also have great significance.”
Meng Yi said with a happy face.
The other officials in the DPRK also looked at each other in blank dismay, and nodded in approval.
After all, as one of the patients, officials like them know better than anyone how much myopia and presbyopia hinder their daily life, so they are naturally full of respect for Ying Yu who created the glasses.
"I have already handed over the manufacturing process of glasses and vision tables to the Academy of Engineering, and explained them in detail many times. I believe they should be able to grasp the essentials soon."
"When their production process is fully mature, glasses should be able to start mass production."
Ying Yu said with a smile.
"His Royal Highness is a great talent, if these glasses can really be popularized, it will be a blessing to the scholars waiting for me."
Chen Ping said with a smile.
"Fart, why is it a blessing for you scholars? We soldiers usually have to read military law books, and we have to study maps constantly when marching and fighting. There is no less place to use our eyes than you scholars!"
"Furthermore, the old man's eyes have been blinded by the wind and sand recently. Wouldn't it be okay to wear a pair of glasses to avoid the wind and sand? How come glasses have become a blessing for you scholars."
Wang Jian immediately became unhappy when he heard this, and started blowing his beard and staring.
As a veteran of the four dynasties, and a meritorious general who helped Yingzheng wipe out Liuhe and unify the six countries, Wang Jian's age has already exceeded 70 and is approaching the [-] mark, so his eyes are older than Yingzheng to be serious.
If Wang Jian hadn't kept the habit of exercising for so many years, his vision would have been blurred at this moment.
But even so, under the erosion of the years, Wang Jian's eyes are already quite difficult to use at this time.
On weekdays, he could barely see people clearly, and it was almost impossible for him to bend his bow and shoot arrows as before.
Therefore, after hearing Ying Yu talk about the various benefits of the glasses, especially when he saw Ying Zheng wearing the glasses and discovering a new world, Wang Jian was immediately moved.
Originally, he thought that because Ying Yu was his grandson-in-law, he might be able to ask Ying Yu for a pair in advance.
Unexpectedly, Chen Ping said such a sentence suddenly, which made Wang Jian very angry.
"Just now, the official's words were inappropriate. I shouldn't have forgotten that soldiers also need glasses. Please forgive me, the old captain!"
Chen Ping was terrified and immediately apologized to Wang Jian.
Wang Jian is not only a veteran of the four dynasties, the greatest hero in the unification of the six kingdoms by the first emperor, but also the grandfather of the princess.
In terms of seniority, this old man who is not angry and arrogant is still above the first emperor.
Looking at the whole Great Qin, apart from Ying Zheng and Ying Yu, no one can match his status!
Even if Ying Yu saw Wang Jian, he still had to call him an old general.
This is the existence who can enter Xianyang Palace at will and drink with His Majesty the First Emperor.
Chen Ping couldn't afford to provoke such a character!
What's more, Wang Jian's temper is notoriously hot-tempered. At the beginning, he just had some small conflicts with Feng Quji, and he ran directly to the court to challenge Feng Quji one-on-one. In the end, Feng Quji had to be dumb and eat coptis. , to apologize to Wang Jian.
What if Wang Jian was really pissed off and Wang Jian wanted to single out him?
Not to mention whether he could beat this battle-tested veteran, even if he could, he wouldn't dare to fight.
After all, Wang Jian's title is really scary, and he has to suffer in the end.
It's better to apologize earlier, so as not to be targeted by this old general.