Liu Feng trembled and followed Chu Yan out, constantly guessing Chu Yan's purpose in his mind.

This King of Qin is not easy to get along with, and I don't know what I want to do with him this time.

The clairvoyance and lenses are still top secret. With Liu Feng's identity, where is it possible to know?

Su Jinli wouldn't tell him either.

So even if Liu Feng wanted to break his head, he would not have thought that Chu Yan was looking for him for lenses.

When he reached a place where there was no one outside, Chu Yan stopped.

Liu Feng hurriedly stopped, not daring to get too close to Chu Yan.

Chu Yan didn't care about his careful thoughts, and asked directly, "You might burn a more transparent colorless glass?" ”

When Liu Feng heard this, his heart that had been hanging fell instead.

His mind turned sharply, and he pondered and said: "Back to the prince, the glass burned this time is a new recipe, because the time is still short, the villain has not had time to grasp it."

In order to burn more transparent colorless glass, it is necessary to go through countless tests to adjust the formula and furnace temperature ......"

Chu Yan interrupted him: "So, are you sure?" ”

When Liu Feng heard this, his face turned pale with fright, and he knelt down directly: "Return to the prince, villain...... The villain is not sure. ”

In fact, he was still somewhat sure, but he didn't dare to say it.

Now he should go down, in case he can't burn the glass that King Qin wants, wouldn't his fate be miserable?

Chu Yan looked at him deeply: "Do your own thing, remember not to say what you shouldn't say." ”

Liu Feng swallowed nervously: "Yes." ”

Chu Yan turned around and left, he still had to go to the palace to explain this matter.

Clairvoyance is too important to be delayed for a moment.

In the palace, Emperor Yong'an was worried about the clairvoyant.

Clairvoyance is too slow to manufacture!

Even if the War Bureau and the Weapons Bureau are built at the same time, the speed will not be fast.

He originally wanted to distribute this clairvoyance to various cities, but he didn't expect it to be so difficult to build!

If this continues, when will it be possible to match all the cities?

The more Emperor Yong'an thought about it, the more annoyed he became!

I'm not even in the mood to approve the fold.

Chu Yan arrived at this time.

"Your Majesty, King Qin asks to see you."

"Huh? How did he get here? Emperor Yong'an was a little surprised, but still said, "Let him in." ”

Chu Yan quickly walked in, still holding a wooden box in his hand.

Seeing this, Emperor Yongan couldn't help but take a second look at the box.

The box is not big, it doesn't look like a food box, what is inside?

Could it be that the second child has obtained some treasure, and plans to honor him?

Emperor Yong'an was curious, but he didn't care very much.

What good things hasn't he seen?

Chu Yan honestly practiced the courtesy: "The sons and daughters see their father." ”

Emperor Yong'an interrupted him: "What's in the box?" ”

Chu Yan immediately said: "Father, the glaze workshop has successfully burned the colorless and transparent glaze. This is a trial glass plate, and the son specially brought it over and asked his father to take a look. ”

Emperor Yong'an was a little surprised: "Liuli...... Board? Is it a board made of glass? I remember, the glass workshop has just been built, and the fever just started yesterday, so it burned out so quickly? Show me. ”

He actually dislikes it in his heart, what is not good to burn, he actually burns a board, what is so good about a board?

Gonggong Li was also very curious, and couldn't figure out why Chu Yan wanted to take a board into the palace.

Glass panels, it doesn't sound like a good thing.

However, no matter how slanderous he was in his heart, since Emperor Yong'an said that he wanted to see it, he had to give it to Emperor Yong'an.

So he stepped on small steps, quickly came to Chu Yan, took the box, and then carefully opened the lid and held it in front of Emperor Yong'an.

As he walked, he looked curiously at the glass plate in the box.

This look made him see something.

This glass plate is really clear, and it looks a little like water jade.

However, such a large and transparent water jade is not easy to find. Water jade can be polished into lenses, this glass plate looks quite similar to water jade, can it also be used to polish lenses?

Gonggong Li thought of this possibility, and immediately understood Chu Yan's intention of bringing this glass plate into the palace.

It is really difficult to find a large and clear water jade, if this glass plate can really replace the water jade to polish the lenses, it can save a lot of trouble.

When Emperor Yongan saw this glass plate, he would definitely like it.

Thinking of this, Gonggong Li sped up his speed and came to Emperor Yong'an with the box in his hand: "Your Majesty, please see, this is a glass plate, and when the slave maid saw it just now, she thought she had seen the water jade." ”

When Emperor Yong'an heard this, he immediately stretched out his hand and took out the glass plate.

If you look closely, this thing is as clear as water, and it really looks like water jade, but the water jade is not so large.

However, after looking at it for a long time, Emperor Yong'an frowned again: "Look, it's still a little like water jade, but it's not as clear as water jade." ”

When Emperor Yong'an said this, he looked at Chu Yan again: "Is this thing really burned out of sand?" ”

Gonggong Li also looked at Chu Yan curiously.

This board is as clear as water, and it's too far from sand, right?

Can sand really burn out?

And so it is. Erchen went to see it himself, and it was indeed burned according to the recipe in that strange book. Chu Yan paused when he said this, and then he got to the point, "Father, does the emperor know that this glass plate is pressed with a mold?" ”

"Mold pressing?" Emperor Yong'an was taken aback when he heard this, and quickly grasped the point, "You mean that you can directly use a mold to suppress such a flat glass plate?" ”

Since it can be pressed into such a glass plate with a mold, can it also be pressed into something else?

At this moment, not only Emperor Yong'an thought of it, but also Gonggong Li.

He knew what Emperor Yong'an had been worrying about recently, so he looked at Chu Yan expectantly and waited for him to nod.

"That's right, Erchen looked carefully, after the sand is melted, it is like molten syrup, viscous and soft, and can be shaped into various shapes at will.

Therefore, Erchen thought that if the mold was made into the shape of a lens, it might be able to be pressed directly with glass.

However, the glaze workshop has just started to burn, and only made a mold to press the glazed plate, and has not tried to press the lens, so all this is currently just a guess by Erchen.

In addition, the glaze has just been burned, and the craftsman is not very skilled, so the glaze fired is not clear enough, and I don't know if it can be fired to make a more transparent glaze.

Therefore, Erchen thought that since the formula in that strange book had been proved to be feasible, he should let the War Bureau and the Ordnance Bureau burn the lenses as soon as possible. ”

Emperor Yong'an suddenly became excited.

If he could really suppress the lenses, wouldn't he no longer have to worry about the production of lenses?

Thinking of this, Emperor Yong'an thought of the glazed workshop under the Hidden Treasure Mountain.

The glass workshop is ready-made, and if the glass can make lenses, then the glass workshop has to be controlled.