Lu Heng did not answer the eldest grandson Wuji for the first time.

It was not until he reached the carriage that he said:

"I didn't expect this land to be so cheap......"

"I thought I had to buy a lot of land to let you bring so much silver, but I didn't expect it to be only ten taels!"

Ten taels, this is still the price of buying that piece of land plus Li Kui's house.

Lu Heng, who came from the next generation, where has he ever seen land that can be bought so cheaply!

Lu Heng looked back at the eldest grandson Wuji:

"Uncle, I'm not going to burn ceramics, I'm going to burn something else."

"Do you know Ruri?"

The eldest grandson Wuji was stunned.

He frowned and said:

"Liuli, Sui Shi already has it, but this thing is extremely difficult to fire, and most of the craftsmen who burn it out are just lucky."

"If you want to burn glass, I'm afraid it's going to be difficult."

Lu Heng did not answer the question:

"Just to sell glass, is it expensive?"

The eldest grandson Wuji's brows furrowed even more.

He nodded:

"The glass is precious and known to the world."

"This thing is hard to find, if you want to buy it, I'm afraid it's more cost-effective to buy it from the Hu people......"

"Although they also sell very expensive."

Although Lu Heng is not very clear about historical knowledge, he has an understanding of the history of chemical products.

In ancient times, glass products have already appeared.

However, it is a pity that because of the lack of chemical knowledge, the ancient glass, that is, the glass, was fired purely by luck. Even if someone in history had mastered the firing technique of glass, it would have been lost due to the methods of word of mouth.

So now, the glass is very precious.

He didn't need to know how much it was selling for.

Just know that it's expensive, and that's it!

"I have a way to mass-produce."

Lu Heng looked at the eldest grandson Wuji with a smile:

"Mass-produced, then used to fill the ...... of alcohol"

"Lao Tzu wants to cut off the skin of the five surnames and seven hopes!"

………………

Things got done quickly.

Li Kui's family is not a muddy character, they have already been tormented by the fear brought by the strange disease, for fear that they will die next.

After meeting Lu Heng, the other party not only accurately said the strange illness of the Li family, but also told the solution.

In this way, the Li family, who wanted to leave this place, directly handed over the title deed without any ambiguity, and moved out of Lijia Village on the same day!

If you have craftsmanship, you can eat anywhere.

It's still important to live a little life!

Seeing the Li family leave the village in large bags, Lu Heng sighed with emotion.

"Medicine does not die of disease, and Buddha is destined for people."

"This family still shouldn't die, if it is a change of family that wants property or is unwilling to listen to persuasion, I'm afraid it won't be so easy to speak."

At this time.

The eldest grandson Wuji next to him didn't understand what he wanted to do at all, and felt more and more bizarre.

How difficult it is to fire glass, but anyone with some insight knows it.

Even if you believe that Lu Heng really has this ability for the time being......

But what can the other party do when he takes down a pottery kiln?

This has nothing to do with glass!

"Sunrise, what do you want to do, can you tell the old man first?"

Eldest Sun Wuji frowned and asked:

"You are all still young, and you may not know the key to many things."

"If you want a pottery kiln, there are a lot of them inside and outside Luoyang City that you can buy, and the location is much better than here."

"There are not many people near the Longmen Grottoes, and the road is not easy to walk, no matter what you want to get, it will be difficult to transport it here!"

Lu Heng understood what he said.

If you want to get rich, build roads first.

This is also why there are tea stalls near the official road, but not elsewhere.

Unless you want to hide people's eyes and ears, who will leave the flat road and go to those potholed places?

He smiled and decided that he still had to explain it to the eldest grandson, Wuji.

"Uncle, I chose this place because I knew that this kind of sand was produced here."

"This pottery kiln doesn't mean much to me, at most I have a ready-made stove."

"The main reason is that the sand."

Lu Heng squatted down and twisted up a handful of quartz sand, and shook it at Changsun Wuji:

"This kind of sand is the key to firing glass."

Quartz placer ore is actually not rare, but if you want to find a place close to Luoyang that is easy to find, and he also knows the origin, then there is only here.

In his previous life, when Lu Heng traveled to Longmen Grottoes, he once passed by this area.

The huge sand and gravel quarry is a sight to behold.

This also left an impression on the place.

Otherwise, no matter how good Lu Heng's memory is, it is impossible to write down all the mineral resource distribution maps, it would be outrageous!

After a little explanation.

Lu Heng no longer cares how much Changsun Wuji doubts.

He turned his head to look at Sun Simiao, Li Mingyu and Wu Zhao beside him, and said with a smile.

"Let's go, I'll show you how glass is made!"

………………

A moment later.

Lu Heng raised the stove, and the fire inside was very strong.

He was slightly dissatisfied.

"Today is just a demonstration exercise, if you want to mass produce in the future, this kiln still has to be transformed."

After all, it is an earthen kiln, and it is okay to use it once in a while, but if you want to produce glass in large quantities, it is more suitable to make a brick kiln.

Raising his hand to grind the quartz sand he got before, Lu Heng put it aside.

Then, he grabbed the ashes of the grass and trees again, and rushed to the three students who were watching quietly on the side.

"Grass and wood ash, you should have seen it all in normal times."

"The main ingredient here is a chemical called potassium carbonate, and putting it together with quartz sand lowers the melting point of this thing."

"In layman's terms, it's easier to burn quartz sand."

"This black lump is a piece of lead, and I asked the people in the village for it."

"Actually, it can't be called a lead block now, but galena."

"These three things need to be put into the furnace together to be burned to get glass—what you call glass."

After a general explanation of the principle.

Lu Heng directly operated it!

He covered his face with a cloth to prevent himself from inhaling the powder of quartz sand and plant ash.

The material is fed into the furnace and now just waits.

It didn't take long.

In the shocked eyes of the four people beside him.

Lu Heng took out the quartz sand that had been burned into a fluid form, cooled it down first, and then took out a hollow iron pipe, wrapped it in a cloth, and stirred up the red-hot fluid at the other end of the iron pipe.

"This ...... This is Liuli? ”

Wu Zhao covered his mouth and exclaimed:

"It turns out that the glass is like this before it is fired?!"

Lu Heng didn't turn his head back, concentrating on stirring the liquid.

"Yes, that's the wonder of chemistry."

After speaking, he stuffed a bamboo pipe into the mouth of the hollow iron pipe.

In full view.

Everyone saw that Lu Heng was slowly blowing out the shape of the semi-cooled fluid!