I am engaged in construction in Datang

The rain has not yet been felt, but the bamboos are already rustling, and I cannot sleep at night. Fusang is my friend, and a vine is like half a cup of immortality. The grass on the steps and courtyard is lush, and the bright moon is reflected between the lotuses.

The minor heat has passed, and the great heat is approaching.

Li Yin has been busy in the glass factory these days and only returns to the farm at night.

The temperature at the glass factory was high all day long, and Li Yin was afraid that everyone would get sick from the heat, so she kept preparing candied fruits and melons.

If it was really hot one day, she would go to Li Shimin's ice cellar to dig some ice to cool everyone down. The steel plant workers were treated the same way.

It is not difficult to melt sand into glass, but the difficult part is removing impurities and shaping it.

If you are simply blowing a bottle, it doesn't matter what shape it is. The problem is that if you are making glass windows or complex chemical vessels, you have to shape them while they are at high temperatures.

Just like the problem encountered when making steel, we had to find a material that was fire-resistant and highly plastic.

"Asbestos is not a good thing, but sometimes it is necessary."

Li Yin held her rice bowl and sat with Feng Sanxi in the shade outside the cafeteria, and spoke in a depressed tone.

There is no shortage of asbestos in the inland area, and there are even examples of ordinary people using asbestos very early on.

For example, the fire-resistant cloth of the Warring States Period was made of asbestos fiber. However, there were not many records of this thing during the Tang Dynasty, and Li Yin didn't know whether it had been lost.

"Master, when the technology is not up to the task, this is all we can do. We have tried our best."

Feng Sanxi thought clearly, what kind of work can be done without harming the body?

Even the ladies working as front desk clerks will feel pain in their lumbar spine if they stand for a long time, but the damage may be greater or lesser.

“It’s not just asbestos, there are more hazards to the factory from glass blowing.”

People who blow glass all year round are prone to lung diseases. Today's medical conditions are not good, and Li Yin doesn't want to see anyone harm their health.

Li Yin took a mouthful of noodles and fell into deep thought.

Asbestos is only used to make a few instruments used in high temperatures, and fire-proof asbestos cloth. Glass can be placed on the cloth at that time, so it is used less and the damage is not great.

But glass needs to be blown every day.

In the earliest times, glass windows were blown into a cylindrical shape, and then cut at high temperature to turn the cylinder into a rectangle. The curled glass slowly became flat in a high-temperature furnace.

In fact, it is also possible to roll it into a board, but the transparency of the rolled glass is too poor.

"Let them take turns blowing the pipes. Don't let just a few of them do this job."

As Li Yin spoke, she thought of the captives again.

When the glass technology is no longer afraid of being leaked, we can ask the barbarians and foreigners to blow the whistle, give them rewards, and replace them in batches, so that the damage can be minimized.

Today, the factory cafeteria made not-so-authentic knife-cut noodles, served with stir-fried tomato loofah and pickled eggplant. The cucumber was shredded, and each person was given a spoonful of pickled meat. Those who like garlic can help themselves.

It is so refreshing to have a bowl of this in the hot summer.

Those men squatting in the shade ate with relish; they were all tenants of the farm and didn't care about so many things.

In the afternoon, Xiaosong brought some instruments made of asbestos.

After resting for half an hour, everyone started to study and think again.

"Spin, spin faster, don't be afraid, if you don't spin it, this cup will become flat again!"

"Hey Songzi, is this bowl just for show?"

"Can you do it? If not, ask me to come. It makes me anxious just looking at you!"

Xiaosong held the steel pipe with both hands and kept turning it, sweating profusely from nervousness. After turning it, he put it into the stove to heat it up, took it out, put an air nozzle in it and blew air into it.

So everyone watched helplessly as another crooked cup was born.

Everyone: "..."

I am speechless.

Looking down at the pile of bottles and cans on the ground over there, everyone wanted to cry.

When the first crooked bottle came out, everyone was happy. When the second crooked bottle came out, everyone was happy too...

Until the fifth, sixth, seventy, eighty...

The best bottle was not very straight, and the owner of the manor disliked it as soon as he saw it.

There was really no other way, so Li Yin asked the steel factory to work overtime to make a few molds for water cups and bottles. Then everyone made good-looking glass bottles, and those crooked ones were sent back to the furnace for remaking.

"Glass products are not for sale for the time being. Just make a few and take them home for your own use. Don't share them with others."

Li Yin felt her eyes hurt when she saw the colorful bottles on the ground, but everyone liked these flashy colors and had to collect all of them, including red, orange, yellow, green, blue, indigo and purple.

"Master, can I burn a bracelet for my wife?" Zhao Erniu was holding a pile of bottles and jars, grinning foolishly.

"Okay, make a few more and prepare them for the ladies in the village. Also get some pendants and beads with holes."

Then everyone got even more excited.

Except for chemical laboratory equipment and telescopes, the village does not produce transparent glass. Even for windows, Li Yin plans to use raw materials that have not been completely free of iron ions.

The glass fired in this way has a slightly green head. This was the old-fashioned glass that Li Yin used at that time.

She took a set of gray teacups for herself to use for drinking tea and water.

Seeing that the glass factory was on the right track, Li Yin planned to return to the village.

She left Erya alone in the house last night, and she couldn't leave today.

The factory is full of tenants from the village, and there are heavy guards outside the factory. With Xiaosong involved in the management throughout the process, there will be no problems.

The men who were able to go home packed up their things, rode on their 28-inch bicycles, loaded with a bunch of glass products, and returned to the village in high spirits.

Ten p.m.

The lights in the women's village were still bright.

Biogas lamps were lit in every household, and regardless of whether the children were studying or not, the adults had to read.

The men who came back would help those men who could not go home to pass on a message, and also bring the glassware to their wives.

Li Yin also took the glassware back to her yard.

Erya is lying on the table reading. The little girl is smart and has started to learn basic physics knowledge.

Hearing the door open, he ran out quickly.

"Sister Li Yin!"

Erya shouted excitedly, then hugged Li Yin in her arms.

"Jingyi has grown taller again!"

After measuring Erya's height and hugging her, Li Yin said, "It's also getting heavier!"

"..." Wang Erya: "I'm growing! Sister Li Yin has also grown taller!"

Li Yin has indeed grown taller. After all, according to her age, she is only 13 years old now, which is the time when she is growing up.

"Xiaoxia hasn't come back yet?" Li Yin looked towards the side room. It was pitch dark.

Generally speaking, Xiaoxia would be reading medical books in the house at this time.

"No!" Wang Erya followed Li Yin into the house: "Sister Xiaoxia and those young ladies are in the clinic in the village."

Li Yin calculated and knew.

I guess Manager Liu is coming tonight.

"It's too late. Jingyi needs to wash up and go to bed." Li Yin went to boil water. The water tank in her yard was always full by the tenants.

Erya was short and could not reach the water in the tank. Li Yin was worried and asked her to light the biogas.

"Are you going to look for Sister Xiaoxia later?" Wang Erya followed behind Li Yin, staggeringly.

"Yes, we can't let your sister Xiaoxia do it all alone."