"Anxin, what is this?" Yao asked, pointing to the long, somewhat stone-bed-like thing inside the painting.

This rectangular thing looks quite similar to the stone bed, but it is a little different from the style of the stone bed, and it looks a little strange, is this also a kind of stone bed? I just don't know what Anxin drew this for? What is it for?

"Oh, this is Kang" Anxin glanced at the place that Yao's hand pointed to, it was the specialty of the north that Anxin had only thought of recently, a must-have for winter.

The name "What is it for" sounds like it has nothing to do with the stone bed?

It's just that Yao doesn't understand, what is the purpose of making this kang in the house? Is it to occupy space?

But Yao also knew that it was impossible for Anxin to get some useless things to put in the house to occupy space, and since this thing appeared in the house, it must have its intentions.

"This is also a kind of stone bed, but this kang is much easier to use than the stone bed, you can usually sleep on it, of course, the benefits of this kang are not only to sleep these, its best advantage is that in winter, its cold is very good, it can be said to be a necessary artifact in winter.

When it is very cold in winter, we only need to get some firewood, put it in the hole of the kang, and let it burn, so that the whole kang will be very warm, whether you sleep on it or sit on it, you will feel warm and comfortable.

If there is this pit in winter, the days are much better The cold weather in the north depends on this pit, and I heard Yao say that the climate here in winter is more terrifying, so this kang is even more essential.

"Wow, how amazing is this kang"? Yao Ting's two things emitted the light of Yao Eyes, but I didn't expect this ordinary thing to play such a key role in winter.

You must know that in winter, although the body of orcs is much better than that of females, it is rare to freeze to death, but frostbite still occurs from time to time.

And the female is not very lucky, even if it is well prepared in winter, no matter how warm the clothes are, but the situation of being frozen to death will still happen often, and the female who is not in good health will be difficult to escape the fate of being frozen to death in winter.

It can almost be said that in winter, for female children and the elderly, it is a process of survival of the fittest.

Now with this kang, Yao believes that this winter, the situation of freezing to death and frostbite will be greatly reduced.

"And what is this?" Anxin drew a lot of strange things, these things, all of which Yao had never seen.

"Oh, that's the window" Considering that the house is to be lived in all year round, of course, you can't only consider the warmth in winter, but also the ventilation in summer, so of course you have to get a few more windows, so that it won't be too stuffy in summer.

"What is it for?" Yao didn't understand, why did he make holes in the house one by one.

"Usually when we feel that the house is not breathable, we can open the windows to let fresh air circulate in, usually the house is dark, we can also open the windows to let the sunlight in, the house needs to be ventilated, and the things in the house also need to be exposed to the sun often, so that people living in it will not often get sick."

This window is safe to make two in each house, so that the house will be very bright and not so stuffy in the summer.

"What a magical effect does this window have" After hearing this, Yao only felt that the design of this window was very good.

In the cave of the tribe, Yao has always felt that the cave is sometimes damp and wet, and the sunlight often does not shine in.

Now that he was relieved to say this, Yao suddenly understood, it turned out that the cave had no windows and the sun couldn't shine in, so the things in the cave may not have been irradiated by the sun for too long, forming some bad things, and people have lived for a long time, and the body will inevitably have some uncomfortable symptoms.

"What about this"? Yao is like a curious baby, feeling very curious about everything in the drawings on his hand, and constantly asking for peace of mind.

Yao's gaze fell on a certain place in the drawing, pointed to something strange, and asked.

"This is the stove, that is, the place where we cook and cook, we can cook on this stove when the time comes, and the smoke will pass through the chimney above, and the smoke will be drawn to the outside of the house, so that even if we are cooking in the house, we will not worry about the smoke making the house smoky."

As for the problem of thick smoke, as long as you make a chimney on the stove, you don't have to worry about it at all.

"It's so amazing" Yao only felt that everything he heard now made him feel surprised and admired at the same time.

Although the pictures on this are all ordinary, they all have a role that cannot be underestimated.