The tribe was filled with joy. Everyone lay on the kang and looked around the new house. They all had satisfied smiles on their faces, feeling that the hard work of the past six months had paid off.

The earth pit was flat and dry, far from being comparable to the uneven caves. Even if you didn't spread hay and fur on it, sleeping on it naked was more comfortable than sleeping in a cave. Not to mention that it was covered with hay and fur that had been dried and warmed in the sun for half a day.

Not only were the children cheering and jumping for joy on the kang, but even the adults in the tribe were lying on it and were unwilling to get up.

As for the worry that the earthen kang would be too hot to sleep on in the summer, that had long been forgotten. After such a long time, they had already figured out how to use the earthen kang.

When the weather is not cold, there is no need to burn fire, so the kang will naturally not be hot, and sleeping on it will not be uncomfortable.

This is not the point. The point is the scene that the Son of God once described to them.

It was snowing heavily outside and the weather was so cold that even urine could turn into ice.

In the room, there was a little light coming through the fire pit on the earthen kang. The thick kang was warmed by the flames. Lying on it and covering it with a layer of leather that had become extremely soft after being treated with nitrate, the feeling was so comfortable that one wanted to moan out loud.

In the past, the people who disliked the heavy snowfall in winter were now looking forward to the arrival of severe cold weather. If other tribes knew about the expectation of the people of the Qingque tribe, they would definitely be cursed...

Lame's face was also full of joy. After lying on the kang for a while, holding his spouse and feeling the beauty of the kang for a moment, this exceptionally hardworking man got down from the kang.

At this time, he was holding a piece of broken pottery in his hand, on which were some smashed, unburned black charcoal.

He came to the door that had been installed not too long ago, squatted down, picked up a few handfuls of charcoal crumbs and put them in the stone pit under the door axis, then used his hands to hold the edge of the door and opened and closed it back and forth.

As the door axis swayed, the crushed charcoal fragments gradually became evenly distributed around the door axis. Some of the unlucky ones had already run under the door axis and were crushed to pieces.

The door is much easier to open and close than before.

After doing all this, Bo went to another door and did the same thing.

He didn't care about the charcoal fragments that were not crushed. As time passed, due to the daily opening and closing of doors by people, these charcoal fragments would gradually be broken down by the friction between the door axis and the stone pit, and become their lubricant.

While putting charcoal into the stone pit under the door axis, Lame sighed at the wisdom of the Son of God.

I thought that putting grease under the door hinge was a good idea, but I didn’t expect that the Son of God would come up with such a better way!

Unburned charcoal is very easy to obtain, and it is not a big deal to use it compared to delicious grease.

And the effect is better than oil.

If you use oil, you will have to add some in after a while, and it will easily attract small insects. There is no such worry at all with charcoal chips. You only need to put some in a few times every now and then in the initial period, and then you don't have to worry about it later.

Moreover, after adding charcoal chips, the door axis becomes smoother and lighter with use and grinding.

There were two other reasons why Han Cheng changed the original method of adding oil and used charcoal chips, in addition to the reason that Bo knew.

One is Fu Jiang, this greedy guy, who came over to lick the door hinge after he finished his job. He got kicked on the butt several times for this, but he still enjoyed it.

Another reason was that when he was thinking about a solution, he remembered that in later generations, when the lock on the front door of his home could not be opened and closed properly, his family scraped some lead from a pencil and poured it into the keyhole, then inserted the key in, and after moving it back and forth several times, the lock became smooth again.

The Qingque tribe naturally did not have any lead, but they had no shortage of unburned charcoal that was darker than lead.

There are certain similarities between the two, and Aunt Han gave it a try on a whim, and the effect was surprisingly good.

Han Dashenzi, who did not look like the Son of God at all and rolled back and forth on the wide earthen kang, naturally had no idea that someone was secretly admiring his wisdom.

Fortunately, this is a world without strange powers. If it were another world, Han Cheng felt that if things continued like this, he would be able to gather a lot of wishes and become a god through incense...

There was no one in the east wing. This room reserved for the witch was completely empty.

When they first saw the built deer pen, they thought of it as a house and wanted to build a similar house for everyone in the tribe to live in. However, when the house was actually built and they were about to move in, they suddenly became hesitant and began to regret it.

He just told everyone else to move into the rooms and he would stay in the inner cave.

This sudden change caught Han Cheng off guard. He asked Wu why he didn't want to move in. At first, Wu just shook his head and refused to say. Later, when Han Cheng asked him about it, he told the truth.

He said that he had lived in the inner cave for a long time and was reluctant to leave. In addition, there were totem poles, bone staffs, and feather crowns in the inner cave. These important things needed someone to guard them. He was a witch and should protect them.

Han Cheng was moved and wanted to laugh at the same time. He tried to persuade Wu for a long time, but Wu refused, so Han Cheng had no choice but to let her do as she pleased.

The weather is not too cold at this time. Since Wu is unwilling to leave, let's stay inside for the time being.

When the weather gets cold, I will find a way to let him move in.

"It's time to eat! It's time to eat!"

Someone was shouting outside.

After hearing the sound, everyone in the room took action, pouring out of the two doors and heading towards the cave.

The child had short legs but ran to the front, much like the students in later primary and secondary schools who would get ready before the school was over and rush out of the classroom to the cafeteria as soon as the bell rang.

Han Cheng also walked out of the room and headed for the cave. Influenced by this scene, he couldn't help but speed up his pace. Although no matter how fast or slow he walked, the first meal would be his...

Everyone moved out of the caves, and the caves that used to be crowded and lively became empty and deserted. As more people moved in, the caves returned to their former bustling state.

The empty cave will become a place to store tools and also serve as the canteen of the Qingque tribe.

Han Cheng had no intention of changing the practice of eating from a big pot. On the one hand, it made cooking easier. On the other hand, it made eating together more lively and could enhance the relationship between each other. In addition, it could also maintain and strengthen the order of the Qingque tribe by changing the order in which people took the food.

As for private ownership, it was something that was considered only after productivity was greatly improved and the tribe expanded in size. It is not applicable to the current Qingque tribe.