Since it was getting late, the few people had to find the farmer's house first, and then wait until tomorrow to go to the ceramics workshop.

At this time, Li Mingyu was a few steps behind everyone and quietly grabbed her husband.

"You don't want to tell them, you can always tell me about it first, can you?"

"What are you going to do when you run to the vicinity of the Longmen Grottoes? Is there anything here that is needed to teach students? ”

She knew that Lu Heng didn't want to talk in advance, and there were many people on the road, so it was not a good place to talk, but if she entered the farmer's house, it would be even more inconvenient to ask.

Lu Heng smiled, lowered his voice and said:

"Isn't this to help raise the price of drinks in Chang'an?"

"If there is nothing new, how can the dignitaries buy it."

"I'm bringing you here because there are minerals in the vicinity that I need, and these minerals are also needed by the ceramic workshop."

"If you find a workshop, you're basically finding that kind of mine."

"I used to teach mathematics, but mathematics, physics and chemistry are not separated, and chemistry is also essential."

"You'll just wait and see tomorrow."

Li Mingyu closed his mouth suspiciously and didn't ask any more.

After all, she had seen Lu Heng practice medicine to save people.

Before that, Lu Heng had not systematically studied medical skills.

Although I don't know where he learned all this knowledge, maybe there are people in the world who are born to know?

Several people followed the farmer to the house.

As expected, the house looked very shabby, and the hygiene was noticeably poor.

Although they are all from extraordinary backgrounds, even if they have endured hardships since childhood, they have never fallen to such a point, but it is already very good for someone to take them in, and it is a bit too much to pick and choose.

So under Lu Heng's personal cleaning, everyone barely spent the night here.

Early the next morning.

Lu Heng got up early in the morning and went to knock on the farmer's door.

The farmer opened the door with some surprise and said:

"Oh you, I thought that big people like you wouldn't get up too early!"

The farmer's surname is Li, and he is quite old.

After living for so many years, Old Man Li can naturally see that these people in front of him are not easy to mess with, and they must all have extraordinary identities.

Lu Heng smiled:

"Old man, we also have serious things to do, so it's better to get things done first, so it's more reassuring."

"The workshop you talked about yesterday, can you take me to see it first?"

Old man Li immediately patted his chest:

"Wood problem! Let's go, I'll take you there! ”

Unexpectedly, Lu Heng waved his hand and said:

"No, no, no, just take me there, wait until I go to see them before calling them."

………………

The east end of the village.

Following Old Man Li all the way here, Lu Heng really saw a small bungalow.

He was a little curious:

"Old man, how long has this workshop been around?"

Old man Li thought for a while and said:

"I've had this place for as long as I can remember."

"I guess it's been almost a hundred years, right?"

Lu Heng pondered in his heart, thinking that this workshop was probably also the kind of family heirloom.

It's not easy......

He scratched his head and said:

"Okay, let's take a look at it first."

Old man Li is obviously more popular in the village, and he has already made it clear to the people at the door of the workshop in three or two clicks.

With him leading the way, Lu Heng was able to enter the door smoothly.

This also made Lu Heng very glad that he found a leader yesterday, otherwise it is estimated that he would be blown away if he couldn't even enter the door.

After entering the workshop, there were not many people inside, only three or four strong men were fiddling with the clay embryos, which looked like they were making utensils.

Lu Heng casually found someone who looked kind, squatted in front of others and began to ask.

"Brother, are you a craftsman in this workshop?"

The strong man knew that Old Man Li had brought people in, but he didn't think much about it, he just thought it was a passing foreigner who was a little curious about the ceramic workshop.

When I looked up, I saw Lu Heng's clothes again, and I saw that he was a person with status and wealth, and he might have never seen a ceramic craftsman like them. So he was more sure of what he thought in his heart, and he was obviously vigilant, worried that this was a bad servant who wanted to buy and sell their property.

He sneered and said:

"This young master, there are not as many countrymen as you in the city."

"This workshop was opened by my father, how many years has it been passed down from generation to generation, where will I find outsiders to be craftsmen?"

Lu Heng thought to himself, as expected.

Family Workshop!

He scratched his head and said:

"Brother, don't get me wrong, I don't mean anything else, mainly to ask if you have any special sand around here?"

"That kind of sand is shiny, and the water can't be retained when you farm the land, so it's generally only used when making ceramics."

"That's why I asked Li Laohan to bring me to your workshop to ask."

As soon as the strong man heard Lu Heng talk about this kind of sand, he became more and more vigilant.

Ordinary people don't know how to make ceramics.

If you can say that this kind of sand is needed in the pottery process, then the other party must be a knowledgeable person!

He immediately stood up, made a gesture of driving away with both hands, and prepared to drive the people away.

"What sand, I don't know, don't ask me! Get out and get out! ”

Seeing this, Old Man Li, who was still waiting at the door, wanted to come over and help say a few words.

After all, Lu Heng is the person he brought, even if he meets in Pingshui, he can't let this future life suffer when he is next to him.

But he never expected that Lu Heng just grinned and said:

"Don't blame me for being too talkative, brother, does anyone in your family have a strange disease?"

"At first, I felt a little out of breath, I felt bad lungs, and I always coughed."

"Over time, the cough got worse and worse, and I couldn't stop all day long."

"Maybe you will say that it is because you make ceramics every day when you come into contact with sand and mud and the like, and you don't know if you choke."

"Depending on the situation, once it gets worse, there is no way to stay away, and it will even change from lung discomfort to heart discomfort."

"I guessed right, right?"

Hearing Lu Heng's words, the strong man who was about to drive people away just now suddenly changed his face!

He asked sharply:

"How do you know?!"

Old man Li, who had already rushed to the side to prepare to persuade him, was already stunned at this time.

Whether you have said it or not, of course you know.

He didn't tell Lu Heng about this matter, because even Old Man Li, a native of the country, didn't know that the craftsman's family would have this strange disease.

Lu Heng just smiled slightly.

It can be seen from the reaction of this strong man just now that their family must have seen quartz sand, and even used it from time to time.

Quartz sand is the mineral he is looking for!

Generally speaking, quartz sand is not harmful, and it will not affect people's health when placed there.

But craftsmen are different.

To use quartz sand, it needs to be crushed and ground before it can be used to make ceramics.

There is a silica substance called asbestos in quartz sand.

If this thing is inhaled for a long time, it will cause unimaginable harm to the human body.

Even carcinogenic!

In addition, if you want to grind quartz sand, it will let a lot of dust be suspended in the air.

The dust of quartz sand is extremely fine and can be suspended in the air, and if a person inhales the dust containing quartz sand for a long time, he will suffer from silicosis.

Occupational diseases, the ancient craftsmen did not know the cause, and they were absolutely impossible to prevent.

This is also why Lu Heng dared to say so firmly that their family was sick.

Even if it is a 10% probability, this family has been working for so many years, there will always be a trick!