Datang romantic little landlord

For a moment, everyone looked at Yu Shinan with jealousy.

I wish that tomorrow it would be best to have my own birthday, so that I can also ask Hu Xianbo to make such a picture for myself.

Cheng Yaojin asked unceremoniously: "Boy of the Li family, you made this portrait of Duke Yu?"

What do you mean?

Li Wangyou just wanted to nod his head to admit it, when he suddenly noticed the eagerness of the surrounding guests, and he was startled!

What does this nima mean?I won't see Yu Shinan's sketch portrait anymore, do you want it too?

It seems that sending Yu Shinan this congratulatory gift was a bit of a mistake!

Did I underestimate the attraction of sketch portraits to these big shots?

If all the bigwigs present came to ask me to paint portraits, should I refuse?Or refuse?

If he agrees to this, he really doesn't have to do anything.

What's more, with Li Wangyou's lazy personality, if he is willing to sit in front of the drawing board every day and draw portraits of people, he might as well kill him.

How dare Li Wangyou admit it?

He quickly shook his head: "No, no, this is my nephew's disciple, Yan Liben's work. Hehe, although he studied under me, he has already surpassed me in painting, and his painting skills are even inferior to my nephew's. "

Today, Ma Zhou and Yan Liben are naturally among the birthday guests.

Yan Liben was stunned when he heard what his teacher said.

Is this really possible?

There is no trust at all between people?

This portrait of Yu Shinan was clearly written by Li Wangyou himself.But now he directly pushed it to his disciples, how could this make Yan Liben feel embarrassed?

Facing the fiery eyes of the surrounding guests, Yan Liben wept sadly in his heart, and nodded in response with great grievance.

Li Wangyou gave a look of "Thank you for your hard work", but he didn't feel guilty at all.

If the teacher has something to do, it is natural for the disciple to do it for him.Otherwise, what would you do to recruit disciples?Of course it is used to take the blame, wow ha ha ha ha!

Yu Shinan was naturally very satisfied with this congratulatory gift.He leaned closer and looked at it carefully for a long time before letting Yu Chang carefully put it away.

"Haha, Ziyou, you really bothered with this congratulatory gift. I am ashamed to receive it, I respect you, I respect you! Thank you Ziyou!"

Yu Chang on the side also repeatedly bowed to Li Wangyou to thank him. This portrait of Yu Shinan will undoubtedly become a family heirloom of the Yu family in Yuyao.

A hundred years after Yu Shinan, this portrait must be hung in the Yu Clan's ancestral hall in Yuyao to receive incense and worship from the Yu Clan.

After putting away Yu Shinan's sketches and portraits, everyone turned their attention to another maid who was holding a copper box.

The congratulatory gift sent by Huxian Bofu today is really an eye-opener.

Naturally, everyone became more and more curious about the last congratulatory gift named "叆叇"...

459 Crystal Glasses

In the lobby, the expectations of everyone disappeared after the copper box was opened.

The items that the maidservant of the Yu Mansion took out from the copper box were really not unique, and even looked a bit shabby.

A thin wooden frame, embedded with two transparent objects.

Guests with good eyes can tell at a glance that they are two thin transparent crystal chips...

Natural crystals were not uncommon in Datang.

Although it is a little rare for craftsmen to polish this crystal flake, it seems that there is nothing surprising about it.

At least everyone can't see the value of this gadget.

What is this "叆叇"?

After seeing the congratulatory gift in the hand of the maidservant of the Yu Mansion, everyone showed disappointment on their faces.The second congratulatory gift from Uncle Hu County seemed ordinary.

Only the beautiful boss, after seeing Li Wangyou's congratulatory gift, covered his mouth in surprise...

"Wangyou, you can actually make glasses? How did you do it?" She quickly asked in a low voice.

Li Wangyou's second congratulatory gift was a pair of glasses that are common in later generations.

Li Wangyou smiled triumphantly, leaned into her ear and whispered, "Hey, of course, how about it, isn't this a good gift? Isn't your birthday cake comparable?"

The beautiful boss gave him a blank look, she really did not expect that Li Wangyou could make glasses in Datang.

She always took it for granted that before the advent of glass, it was impossible to make eyeglass lenses.

But in fact, in ancient China, glasses made of crystal appeared very early, at least there are records of glasses in the Song Dynasty.

In the Ming Dynasty, there was optometry technology, which could be equipped with myopia, hyperopia and presbyopia glasses for different vision.

Therefore, it is not difficult for Li Wangyou to make glasses with Datang's technology.

That day Li Wangyou thought hard about what gift to give Yu Shinan as a congratulatory gift, and in a flash of inspiration, he thought of these presbyopic glasses.

Li Wangyou had noticed before that Yu Shinan must be old, with presbyopic eyes, and usually holds the article very far away when reading.

It was also like this when his grandfather was alive, so Li Wangyou knew very well that Yu Shinan had presbyopia.

Presbyopia is not a disease, but a normal physiological phenomenon.For presbyopia, there is only one way to wear reading glasses.

In this case, giving Yu Shinan a pair of reading glasses is obviously the most suitable choice.

And because he wanted to help Sun Simiao make a microscope, in order to grind the lenses for the microscope, Li Wangyou ran a long way to be a prisoner.

The craftsmen who will be the supervisors now have a little experience in how to grind natural crystals and make them into lenses.

The microscope has not yet been made, that is because the focal length of the convex lens in the microscope must be constantly adjusted, which is a delicate task.In the absence of a reference, you can only try slowly.

But it is much easier to make reading glasses for presbyopia.

Of course, presbyopic glasses also have prescriptions, so Li Wangyou can't grasp it.

The only way is for the craftsman to help him grind out several kinds of convex lens lenses with different curvatures. Then let Yu Shinan test it himself to see which pair of lenses is more suitable for him.

Naturally, the Tang people had never seen glasses before, and were slightly disappointed with the pair of glasses Li Wangyou gave him.

Naturally, no one in the audience would have thought that these glasses, which are commonplace in later generations, are used to adjust eyesight, and everyone thought they were just a decoration.