Considering that autumn was approaching, Ding Qi decided to rebuild a house of similar size to the original, except that the walls were all made of adobe, and the four corners were made of masonry to increase the sturdiness of the house. The roof with a hole in the roof was also a reminder to Ding Qi that stronger tiles were needed to protect the roof from damage.

Considering that the winter of the primitive society will be very difficult, especially after a world-destroying fire, until now the sky is still shrouded in a thick layer of smoke, the number of times the sun appears, and the long-term absence of the sun in the world, the impact on the weather will be very huge. If it weren't for a torrential rain, it is estimated that the sun would not have appeared in the first two days. So Tinch was also thinking about how to make it warmer, and the pit and fireplace were a very good choice.

The construction of a house requires a large amount of materials, including masonry, adobe, lime, wood, charcoal for burning bricks and lime, and even tools for transporting materials.

In order not to delay the matter, Ding Qi first began to burn charcoal, and since he had to burn a lot of bricks and lime, he expanded the scale of charcoal burning. Two more pits were dug next to the original charcoal burning pits, each one one meter longer than before, so that the amount burned each time was larger.

Then there is a lot of cutting down trees, sawing wood, stacking, burning fires, sealing holes, and all that remains is waiting.

But Ding Qi didn't dare to wait, and during this time, he took the little cutie and went around the forest for a long time, until it was dark.

This harvest is relatively large, one is to find that a fruit tree found before is close to maturity, and when I see the unrecognizable fruits that have fallen around, I don't need to test the poison with my cutie, and I will definitely be able to eat it. Ding Qi tasted two bites, and it was still a little sour, but it tasted good, like an apple, but I don't know if it can be stored for a long time like an apple.

The second is the discovery of several chestnut trees and two suspected walnut trees. Chestnuts are very recognizable, with spikes on the outer shell of the fruit, and when they are cracked, they are beautiful chestnut fruits inside, and they can be picked in a few days. The squirrels running and jumping up and down the trees around him are his enemies for food, and he needs to speed up as well. It's just that there are too many things, and he can't do it alone, so he really wants more people to work!

A tree that appeared to be a walnut was found, but Ding Qi was sure from the outside that it was not a walnut tree, but rather a pine tree. But when he saw the green skin of the fruit and the sesame spots on it, especially when he knocked on the shell and saw the real walnut shell inside, he was sure that it was a walnut tree. But the leaves on this tree are not flattering, they are not at all like walnut leaves, but like the needles of a pine tree, and finally Ding Qi calls this kind of tree a lanceolate walnut tree.

The discovery of these two kinds of dried fruits made Ding Qi excited for a while, thinking that the whole winter would not be too difficult, and he could smash walnuts and roast chestnuts to eat, but he didn't know if he would gain weight and whether his cholesterol would rise. This is what Ding Qi thinks when he is not beaten, but he does not know that there are still primitive humans below the absolute poverty line who will starve to death in winter.

Of course, the above are just additional discoveries, and many other discoveries include pine nuts, fungus, and mushrooms, not to mention three squirrels and two grouses.

Ding Qi went around the forest this time, mainly in search of a woody and hard tree species. The jungle is dominated by pine trees, and other trees are mixed in, and Ding Qi found many trees that he had seen in the countryside before, such as oak, locust trees, poplars, elms, and birch trees that grow in the northeast.

Picking and choosing, Ding Qi chose one of the elm trees as his target species, and he wanted to make a unicycle, among these trees, only the elm tree has the hardest wood and good toughness, which is very suitable for making wheels for unicycles.

Now in the primitive era, iron and copper ore have not been found, and copper and iron cannot be smelted, so this wheel can only be made in the most stupid way, that is, cut a circle from a tree and dig a hole in the middle to make a wheel. Fortunately, I have a saw and an axe, which can be sawed down directly, and can be cut down if not.

But what if you don't have a saw and an ax? Na Dingqi is not a survivalist, but a modern man in a primitive era, empty-handed but knows how to make tools. At that time, he had to make his own stone axe, slowly cut down a thick tree, and then spent a lot of time chopping to make a wooden wheel. When he's done with everything, he doesn't know when. Fortunately, Ding Qi has the tools. With the tools, he was able to shorten the production process and save a lot of time.

The elm tree he chose was about 50 centimeters thick at the base and more than 20 meters high. The tree is very tall, and if it is with a stone axe, to be honest, Ding Qi really doesn't know if he can cut down this tree.

An old squad leader from the northeastern forest area of the army said that there are skills in cutting down trees, especially when cutting down large trees with axes.

According to the growth of the elm tree, the direction of the tree fall was determined, and the root of the tree in this direction was cut with an axe obliquely to cut a relatively large wedge-shaped gap, the angle of the gap was less than 45 degrees, and the depth accounted for about one-third of the diameter of the pine tree, which was convenient for him to chop and more labor-saving.

Then in the opposite direction of the wedge notch, the lower axe position is about 15 cm above the bottom of the wedge notch, continue to cut a wedge notch, the depth is about the same as the first notch, and finally push hard in the direction of the tree, the tree can fall under the pressure of its own weight, and there is no need to worry about the tree from the outer layer "split", wasting wood.

The whole process took about half an hour, which was quick and easy, and with a chain saw, it was estimated that the whole time would be less than five minutes.

Then Tinch cut another wedge on the opposite side of the remaining wedge in the trunk, just like when he was felling, so that he could see the tree down. The saw blade in Ding Qi's hand was only more than 30 centimeters long, and he still couldn't catch it when sawing wood, so he could only chop out a section and then sawed it down with a saw.

After tossing for an hour, I finally got two logs with a diameter of about 50 centimeters and a thickness of 10 centimeters and 15 centimeters respectively. Finally, he sawed down two branches ten centimeters thick and two meters long from the fallen elm, and returned to his residence with a full harvest.

When he got home, he first prepared the food, added forage to the domesticated animals, fed goat's milk and half a grouse, and Ding Qi turned his head and skinned three squirrels and two minks. The meat is hung on the bacon rack and smoked, and the fur is simply processed, left aside, and then nitrated when it is not busy, especially the two minks, which must be handled well, and then go back and grab a few heads back, and make a scarf or hat is not bad.

After dinner, Ding Qi took out an axe and a chisel to chisel out a transparent hole on the 15-centimeter-thick wooden board, five centimeters long and wide, and then cut out a 30-centimeter-long wooden stick from the elm branch he was carrying, and made it into a two-ended round, square middle section, and the same size as the socket.

This is actually the axle of the unicycle, and the middle part of the axle fits well with the socket of the wheel, so it will not loosen. In addition, Ding Qi also used wooden planks to chisel the same holes, which were also stuck on the axle, which was used as a baffle between the wheel and the unicycle girder to reduce the friction between the wheel and the girder.

After these were done, the two girders of the wheelbarrow began to be made. The girder is made of a pine tree with a thickness of 15 cm, which is pulled out of a suitable size with a simple ink fountain, sawed out by hand and sawed out in small sections to be sawn into a rectangle. Then, about 20 centimeters inside the top of the sawn girder, a chisel, an axe, and a multifunctional Swiss Army knife were used to carve out a semicircle with a diameter of nine centimeters. After the semi-circle was ready, Ding Qi put the girder on the axle and tried it, and under the semi-circle clamping position, the wheel could be pushed.

Next, Ding Qi made two Ω-shaped pieces of wood, the upper part of which was a semicircle with a diameter of nine centimeters, which could fit into the semicircle of the girder. Tie these two pieces of wood to the girders in a semicircle respectively, so that they can be pushed and used, which is the same principle as the small flat car used in the countryside when Ding Qi was a child, to ensure that the axle will not detach in the process of movement.

Then, the corresponding holes of the structure were chiseled into the girders, and two crossbars were inserted to form an A-line with two horizontal lines without sharp points, and the wheels were at the top of this A-shape. The A-line bottom was chopped with an axe into a one-handed handle, a strap was fastened, and a simple version of the wheelbarrow that took Tinch a night and a morning to make, finally appeared in primitive times.

It's just that this wheelbarrow can't transport things, so Ding Qi needs to make up a rattan frame and tie it to the car. The rattan frame was made quickly, and it was made in half an afternoon, oval, tied to the car, and walked back and forth several times. Even put on half a frame of soil, hang the strap around your neck, and push it to the ash kiln, which is easy and convenient. It's just that balance is sometimes difficult to grasp, and it takes more practice.

Ding Qi saw that there was not enough time left for him to pick up limestone, so he took a shovel and dug another hole in the same cave next to the cave where the pottery was burned, and this hole was ready to be used to burn tiles.

The next morning, Ding Qi packed up everything in the house, took the little cutie to push the wheelbarrow to the place where he used to carry limestone, picked up half a cart of limestone, and carried half a basket on his back. Now that the cutie has grown up and become a qualified guard and scout, she can warn in advance whenever there is any trouble, which makes Ding Qi feel more at ease when he works.

After the limestone was brought back, Ding Qi cleaned out the burned charcoal, put in a batch of wood and continued to burn, and then began to burn the limestone again.

For the next half month, Tinch was very busy, spending his days around adobe, bricks, tiles, charcoal, lime, and chopping wood, while using some of his scattered time to hunt, gather forage, and feed himself, his three pets, and other animals.

During this period, Ding Qi used a sling rope and a woven net to catch two wild sheep, one male and one female, and increased the size of the sheepfold. The number of rabbits in the cage had already tripled through self-breeding, forcing Ding Qi to expand the size of the cage. Only the pheasant population has not changed significantly, and the increased number is still caught in the wild to replenish. What's going on? Because the eggs they lay were all eaten by Ding Qi, the number naturally couldn't go up.

Now that so many animals are raised, at least a fifth of the time spent on them every day alone is taken up, and there are joys and sorrows, and Tinki's life is painful and happy. Sometimes he really wants to go somewhere to get back a few primitive people to help him do these things, every time he thinks of this, Tinch's heart beats faster, this thought will occupy his brain for a long time, being a slave owner, it is crazy to think about, but unfortunately the time is not yet ripe.