Lin Yan first went to draw out the foundations of each yard, and let the people who dig the foundations work first. When the foundation is dug deep, the house can be firm, and everyone dare not be careless.

Seeing that everyone was full of enthusiasm, Lin Yan immediately went to find someone to build a brick kiln and a tile kiln.

Now that the conditions are difficult, six places were selected to build each, and with the help of the caves dug up, they were converted into kilns.

Lao Hei is very experienced in firing, and Mao Mu has also learned a lot, and the two of them take the lead.

Brick and tile firing are much less difficult than pottery, and they used to start their practice by firing slabs when they first fired pottery.

Looking at everyone's efficiency, Lin Yan was glad in his heart that Lao Hei and Mao Mu had built a kiln when they fired pottery, otherwise they would have to go through a lot of experiments, which would be time-consuming and laborious.

On this day, everyone in the Sun Tribe was busy. Everyone has something to do, and no one is idle.

Lin Yan is especially busy, and anyone who can't make up her mind comes to her.

Aquatic and grass branches have become Lin Yan's right-hand men, they are older and have smart brains, and they can always quickly understand Lin Yan's meaning and then convey it.

Little Stone, Flower Blossom and Wild Bud are also members of the group, organizing and arranging for the children in the tribe to do what they can.

On the evening of the first day, several people in charge got together to summarize the results of the first day's labor.

Alan was the first to say, "The woodcutter has brought back sixty pieces of wood, forty of the thin ones and twenty of the thick ones. ”

Lin Yan was shocked, this efficiency was much faster than expected, the tools were lacking, and it was difficult to cut wood with stone tools alone.

"Really?"

Ah Lan nodded, "I personally counted that, that's all." You can go and see if it can be used tomorrow. ”

"I'd like to see it later." Lin Yan couldn't wait, she seemed to underestimate the people in the tribe and wanted to see for herself how they did it.

The most important thing here is wood, thick and thin, and she always thought that it would be difficult to cut wood without sharp knives, so she postponed the plan to build a house.

If it weren't for the beast herd and the cave was destroyed, Lin Yan wanted to wait for this cold season to pass before starting to build a house.

Ah Lan said: "Okay, I'll take you to see it later." Today the basket weavers made twenty, and the fence you spoke of made fifty, and the grass got back a great deal. The hunting party brought back one hundred and twenty-four pikas and thirty-eight cubs, and they were all raised......"

Listening to Ah Lan list all the data one by one, Lin Yan realized that she was also a talent, no wonder everyone agreed that she would manage logistics.

Huang Ye was in charge of the deployment of personnel, and at the same time personally took care of the digging of the foundation, which was the top priority, she was very uneasy, and stayed there to watch.

"The foundation has been dug in three places, all according to your requirements, dug one meter five deep, half a meter wide."

Lao Hei reported: "Today, two brick kilns have been built, and two tile kilns have been baked with fire, and the kiln can start firing in three days." The first batch of bricks and tiles was also made and left to dry. ”

After listening to it, several people felt that the progress was much faster than expected.

Lin Yan said: "There are many people, the strength is great, and the speed is very fast, according to this progress, ten courtyards can be built in twenty days at most." Materials for other yards can also be prepared. When the bricks and tiles are made, more man-made houses will be arranged. ”

"Yes, when the materials are ready, we will start construction." Huang Ye nodded in agreement.

Lin Yan talked about the entire process of building a house in detail, and they knew what they needed to do in order to arrange it so quickly.

After the matter was discussed, Lin Yan and Ah Lan went to look at the wood that had been cut back.

Sure enough, a lot, a lot of piles.

"Alan, do you know how they cut wood?" Looking at the uneven cut of the wood, Lin Yan was even more puzzled.

Ah Lan smiled: "I don't know about this, if you want to ask Dashi, he took someone to cut wood." ”

"I'm going to ask Oishi."

Lin Yan immediately went to find someone, and Ah Lan followed.

What should the big stone do, after listening to Lin Yan's words, he touched his head and said innocently: "We use hemp rope to pull the big tree to the side, and then use a stone knife to cut it to more than half, pull hard, and the big tree will fall." ”

Lin Yan looked at the stone knife again, it was sharper than she thought, but it was not so efficient.

She found a piece of wood and asked Dashi to demonstrate.

Oishi didn't doubt it either, and immediately did it. Holding the stone knife in both hands, the front end of the stone knife was sharp, and the back was heavy, and the wood broke into two pieces with a hard knife.

Lin Yan looked at the fracture carefully, the wood with a diameter of five centimeters was completely broken, the fracture was not smooth, and he turned his head to look at Dashi's hands.

It dawned on her that the stone knife was indeed not as sharp as she thought, but she had overlooked a problem.

The strength of the young people in the tribe was much greater than she expected, otherwise it would be no wonder that the efficiency of the day would be so high.

In this world, not only the animals and plants have been affected, they have grown much taller, and the people have also changed.

A person's body is strong and has a smart mind, but before it should have eaten raw flesh and blood, a single diet, and a lack of food caused the person's body to be not strong enough.

Recently, food has gradually become abundant, and after starting to eat cooked food, people's health has improved. There are fewer sick people, and the old body looks more energetic.

The children, not to mention, are growing better and are no longer as thin as they used to be.

This night, Lin Yan pondered for a long time and felt that the environment must be different.

The air here may be oxygen-rich, which leads to a series of changes.

In an oxygen-rich environment, animals and plants will grow ferociously when they have sufficient oxygen supply and vigorous growth. People also benefit. As for whether it is or not, it needs to be slowly confirmed later.

Thinking too much for a while, seeing Lin Yan staring at the broken wood in a daze, Ah Lan and Dashi didn't dare to disturb.

They all knew that Lin Yan's mind was different from their own, and if what they were thinking of was interrupted, they would lose a lot.

When Lin Yan came back to her senses, both of them looked at her expectantly, wondering what good solution she had just come up with.

Lin Yan knew what they were thinking at a glance, and said busily: "I just remembered something else, the young people in the tribe are very capable, which is beyond my expectations." It won't be long before a new house can be built. ”

This night, Lin Yan couldn't calm down. After noticing the difference, a sense of worry arose in her heart.

In an oxygen-rich environment, it is beneficial to most life, and plants and animals generally grow taller and have a longer lifespan.

Thinking of the size of pikas and bison she'd seen, and the appearance of birds, these animals had grown several times larger, while humans hadn't changed much.

In such an environment, humans have no survival advantage. If you want to conquer nature, it becomes more difficult to survive.

But it is not without advantages, the environment is conducive to the growth of plants, and it is generally tall, the fruit becomes larger, and if it can be planted, you can get enough food.