The foundation of the hall is mixed with a lot of lime, which requires a lot of money and almost consumes all the inventory of Fangchang.

There are many large trees in Yunzhong Mountain, but these houses are not too tall. They are just cut back straight and long, as columns on the front steps.

In fact, Fangchang has already made the doors and windows of the main hall, but they are still placed in the shed. It needs the things they have made now to cooperate with. Although it can be made into carved windows and pasted with homemade bamboo paper as window paper, Fangchang has nothing to do in the mountains, so he can do whatever he wants.

The furnace has a unique shape. It draws on the reflection and insulation measures of copper smelting furnaces and uses a good flue, but it has two furnace chambers inside and outside. One is a large crucible made of ceramics, and the other is an ordinary furnace chamber that relies on the outside.

The special furnace body structure can make the furnace chamber temperature exceed the flame temperature, thereby refining things that are difficult to melt before.

He was about to try burning some glass.

The raw materials have been selected, and large quartz stone and large marble collected from the mountains are smashed with a hammer. The alkali-containing brine obtained from the hole dug in winter is extracted in various steps, and the quartz marble is placed in a ceramic pot according to proportions, and then he sets a fire in the kiln.

Although the melting point of each raw material is very high, the glass as a mixture does not have a fixed melting point and will melt at a lower temperature.

After several experiments, I finally realized that I would succeed this time.

The furnace was calcined for a long time, Fang Chang pulled open the hot observation port with his bare hands and found that the raw materials in the ceramic crucible had been mixed together, but they were relatively viscous.

He gently closed the observation port and continued to keep the furnace body warm and increase the temperature inside. Because in the next steps, the better the glass solution flow, the better.

A large amount of metal is stored in the shed, including the copper ore associated ore, tin and silver.

Fangchang picked many tin blocks, took them to the stove, put them into another larger, heated but vacant stove room, and watched it melt quietly.

The melting point of metal tin is very low, even far below the temperature of the firewood flame, so it is one of several metals used earlier in humans.

The only problem is that the kiln, which emits smoke, has some damage to the style of the cliff. Fang Chang was about to turn around and build a small courtyard to surround the shed and several kilns.

The tools are already made, similar to a long bronze horse spoon.

Pull open the observation port again, and the square grower is in the kiln, quickly scoop out the reddish glass juice and pour it into the tin juice that has melted into a small silver-white pond.

Due to the specific gravity problem, the glass floats on the surface of the tin to form a uniform layer. Also, because the temperature at which the glass begins to melt is much higher than the current temperature of the tin juice, the glass layer begins to gradually cool down and solidify, but the tin juice can be continuously heated to maintain its liquid state.

"The person who invented this method must be a genius." Fang Chang said in his heart.

After the glass layer cooled down and solidified, he stretched out his hand, gently took out the hot glass plate and observed it in his hand. Perhaps the raw material was not very pure, and the made glass plate was somewhat green, and there were tiny bubbles sparsely distributed therein.

But Fang Chang was already very satisfied:

"It's really good!"

After turning around, you can install it on the doors and windows of the hall.

He continued to open the observation port, scooped out the glass juice and poured it onto the tin. Because of his success in his practice, his hands were very stable, his feelings about weight were very detailed, and his observation ability was subtle, so the thickness of the glass he created was very consistent.

And when placed on top of tin juice, the glass cools evenly and does not easily break.

The smoke from the kiln on the cliff was still coming out. Fang Chang picked the flat glass and gently poked it next to it.

The charcoal he owned came to bottom again.

……………………

When spring is warm and flowers bloom, it is also a good time to sow.

Every time Fang Chang went down the mountain, he always paid for some when he met someone selling seeds. Therefore, there were much more seeds in his hand than he had planted.

He also left behind seeds from last year's harvest, including fruits and vegetables that have been planted for a season, including sorghum and millet.

A lot of sorghum has been stored, and after this year's harvest, you may be able to make some wine by yourself.

In addition to grain, vegetables, fruits and melons, Fangchang also bought many flower species.

Before, he planted half of the fields on flowers.

In spring, he carried a hoe and shovel, cleared the fields and prepared for the new year's sowing. The flowers have been transplanted elsewhere, and some can be planted this year.

While he was busy, he saw movement in the direction of the back mountain.

But it was Liu Aniu who hadn't seen for a long time.

He was not like an ordinary cow, standing upright with his feet, carrying a straw bag to walk towards him - just because he was not wearing clothes, and was a little indecent.

He also saw Fang Chang from afar, so he looked happy and quickly ran over.

"Master, you are back!"

A Niu was already his registered disciple, but Fang Chang looked at his face and pinched his fingers slightly, and found that this fate between master and disciple was not far from the end of the fate.

Fang Chang stood in the field with a hoe, smiling at Liu Aniu running over.

"How do you come from here?"

"I'm too big and my body is still stupid. Even if I can walk like this, I'm afraid I'll break the plank road on the edge of the cliff, so I walked around from behind." A Niu said.

Fang Chang didn't ask where he went, but A Niu, who was honest, said:

"I have been wandering around Yunzhong Mountain for a while, roughly in the vast area north of Xianqi Cliff, and visited the old family and relaxed in the mountains for food."

"Now, seeing the trees sucking green branches, thinking that the fields on the cliff need to be plowed, I came back to prepare to turn the fields and sow seeds. Unexpectedly, Master, you have already come back. This is a great thing."

Fang Chang nodded and smiled:

"Since you are back, don't worry, go back and take a day off, let's talk about it tomorrow."

Then he carried the hoe and took A Niu back to the house. He put the tools on his hands and chatted with A Niu for half a day. Sometimes he asked him what he had seen during this period, and sometimes he answered some small questions about the other party’s practice.

"Master, I thought last year that the open space on the cliff is so vast and the land is fertile, why not build a few acres of land? It's also a lot of things."

"Okay." Fang Chang was invincible.

The next morning, the master and apprentice were on the cliff, drew lines with dust, and began to plow the ground and loosen the soil.

It is not difficult to open a field, but subsequent farming is a fine task. A newly opened wasteland will take two or three years to become mature fields. There are also many ways to serve the land. Due to the breeding of people in the mountains, the method of intensive cultivation is now commonly used, in order to plant as much food as possible on limited fields.

"Last year, I planted millet and sorghum in the mature fields, and I could also plant some wheat. This year, I planted beans in the newly opened fields, so I could fatten the fields. I left you two more pieces, one piece of vegetables, fruits and melons, and one piece of flowers."
Chapter completed!