"It's still Guanyin who knows me."

Li Shimin smiled proudly, he had nothing to hide from his wife, and said: "Sun Simiao's news was deliberately released by me, otherwise the news of the farm is blocked, how can I get the news so quickly." ”

Empress Changsun said adoringly: "Your Majesty has strategized, everything is under control, and the concubines admire it." ”

"Hahaha......"

Enjoying the adoration of his daughter, Li Shimin laughed loudly. The little love between husband and wife, no one debunked it, but enjoyed it very much.

Gaoyang Dormitory also got this news.

After the last Dali Bookstore, Gao Yang's perception of Fang Yiai's love has dropped to the bottom, but he has been paying attention to Fang Yiai.

Knowing that Fang Yiai left Sun Simiao, the atmosphere in the dormitory was a little depressing, and after Gao Yang was stunned for a moment, he fell into doubt again, "Is Fang Yiai really so good at him?" So many learned gentlemen, willing to stay by his side. ”

"Shu'er, you say, is this palace really blind and can't see the good of Fang Yi's love?"

"How could the princess think that......"

How dare the little palace maid say bad things about the princess, Gao Yang didn't really listen to it.

Halfway through her speech, Gao Yang raised her hand to stop her, and continued to talk to herself, "Doctor Sun is a real master, he doesn't care about power and money, he is dedicated to practicing medicine to save people, and his father and emperor have not been able to keep him, how did Fang Yiai do it?" ”

"Nope! It is impossible for this palace to be blind! ”

After that, Gao Yang came to her senses and immediately shook her head and resolutely denied that her pride did not allow her to admit defeat.

……

Fang Yiai is not a person who breaks his word and gets fat, since he promised Sun Simiao, of course he will take action.

The next day.

Evening.

He summoned a few relevant craftsmen to gather in the courtyard, all of whom were old men from Fangjiazhuang, and they could definitely be trusted. He didn't plan to easily leak the method of firing glass.

Li Gang and Sun Simiao are not talkative people, and the eldest grandson Chong is absolutely trustworthy, as long as the reliability of the craftsman is guaranteed, he can keep this secret.

As for why in the evening?

Naturally, it's not for secrecy, they came all the way, I don't know how many people greeted them, and it was impossible to hide their whereabouts.

Speaking of safety, through the relationship of the Cheng family, Fang Yiai recruited many disabled veterans and stationed them around the compound at all times.

Many of them used to be Lao Cheng's own soldiers, and the wages he gave were not low, and they basically guaranteed loyalty.

There's no way around it.

Nowadays, there are too many rare things in the miscellaneous courtyard, and there are many new technologies and secret recipes, which can be said to be the base camp of scientific and technological development in this world, and it is inevitable that some people will have bad intentions.

He chose it in the evening, just to hide from the sun, which was too poisonous during the day.

Even so, he still holds a large glass of smoothie, afraid that it will be too hot in front of the stove, so that he can cool down.

Sun Simiao also saw it, and said to Li Gang: "Li Wenji, what you said is good, this kid is good at everything, but he is too lazy and lazy." ”

Fang Yiai said aggrievedly: "Dao Chief, isn't the kid here?" ”

The eldest grandson also pursed his lips and smiled at the few of them.

Sun Simiao and Li Gang watched the glass refining, so they came early in the morning, and Fang Yiai made all kinds of excuses, "Look at it so hot outside, if I faint from heat stroke, no one can burn the glass, so let's go later......"

"You have a heat stroke, the old man will treat you, and I will ensure that it will take effect soon, and it will not delay the matter."

What kind of person is Sun Simiao, how can he pay attention to the twists and turns, and reveal his old bottom in one sentence.

Fang Yiai was stunned, in front of the doctor, it was not easy to find an excuse, but he was thick-skinned and stayed at home, and dragged it until this time.

"Young Master!"

"I've seen Daochang Sun and Mr. Li Gang."

In the courtyard, several craftsmen saluted them.

Several areas are heavily guarded, except for the craftsman, only he himself can enter, even if outsiders hold tokens, veterans will not let them go, and now this courtyard is also among them.

"Everything?"

"Ready."

A few craftsmen pointed to the side, and there were baskets of sand, most of which had been ground into powder.

Yuan Liu, who seemed to be afraid that he was too little, and was more familiar with him, stood up and explained: "Because you said that you can't make a noise, you didn't mine a lot, only prepared so much." ”

"It's okay, it's not enough to mine anymore."

Fang Yiai didn't care, waved his hand, and then instructed: "You can fire according to the recipe, you can adjust the proportion appropriately, do more experiments, you must be able to burn transparent glass, young master, I have a heavy reward." ”

"Young master, don't worry, the villain has experience." Yuan Liu said excitedly.

Several other craftsmen also had their eyes shining.

Since the last time the lime was made, Yuan Liu and a few people have developed all of a sudden, he is not only ready to renovate the house, but also said that he is a concubine, and now in the village, no one does not envy them.

With the goal of Yuan Liu, they were full of enthusiasm for a while.

"Master."

Fang Yiai naturally understood what Li Tai meant, nodded and said, "Go ahead, stay a little farther away, pay attention to safety." ”

With something he was interested in, the little fat man was not afraid of the heat, and after getting the approval of Fang Yiai, he ran in the direction of the blast furnace to observe how to fire glass.

Fang beloved a few people, and went to a shed in the courtyard.

He only knows a rough idea, as long as the temperature is enough, it is not a problem to burn the glass, and the quality of the burned glass cannot be guaranteed, and I don't know if it can be used to make lenses.

"Dao Chang doesn't need to be in a hurry, this is not all at once, you can burn perfect glass, you need to keep groping."

……

The other side.

As soon as he approached the blast furnace, Li Tai felt a wave of heat rushing in, but he squatted on the side, staring intently at the furnace, taking out a booklet and pencil to record the changes in the furnace.

The craftsmen mixed the ground quartz sand with alkali, limestone and other materials, put them into the blast furnace, and encouraged the bellows to start increasing the firepower.

In Fang Yiai's study, he has long been accustomed to using pencils and writing hard pen words, mainly because it is convenient to draw.

As the fire increases, the material gradually melts and turns into a viscous brown liquid.

"Young master, it's going to be baked."

I don't know how long it took, Yuan Liuda shouted loudly, Fang Yiai and others have passed, and they need to watch at this time.

The blast furnace was used for iron-making before, and when the iron mouth was released, the thick, high-temperature liquid slowly flowed out, and Yuan Liu held the iron spoon that had been prepared earlier.

The glass melts between 600 and 700 degrees, and the iron spoon is perfectly capable of withstanding it.

After that, it's just a matter of waiting for the glass to cool down.

The end result was disappointing.

Fang Yiai was mentally prepared, and he didn't want to succeed at one time, but he still sighed, "The color of the glass is messy, the transparency is not enough, and there are too many bubbles, so it can't be used as a lens at all, and it needs to be tested again." ”

Undeterred, the craftsmen were very excited, witnessing the whole process of turning from sand to glass.

It's really amazing, and it's very glorious to be able to participate in this event.