A series of very simple things, now put together to consider, it seems to have become very simple, and through the scout's exploration, it was found that there are still some tribes in distant places that are approaching the direction of the Tianhuo tribe, although the scale is not large, but it is also strange.

The huge volcano to the west has always been shrouded in mystery, and there is no talk of investigating it until now.

Thousands of miles to the north, there is an endless ocean, the waves on the sea are particularly strong, the sea breeze is very strong, and the eagles, horses and beasts dare not get too close.

To the east is an endless primeval barren forest, and according to the scouts, along the Tongtian River, there are many tribes, many of which are many times more powerful than the Heavenly Fire Tribe, and all of them have learned to use fire.

To the south, it is cut off by the Tongtian River, which is still a boundless primeval barren forest, and there are also tribes of all sizes in it, but the tribes there are stronger than those on the north bank of the Tongtian River, which can be verified from the chief of Halle.

"The Tianhuo tribe is still not strong, the threat of the Dachuan tribe has been removed, but the river god that the Dachuan tribe believes in is a hidden danger, and there are tribes in the distance, which are slowly approaching the Tianhuo tribe, although the speed is not fast, there will always be a day when it comes, and I don't know who is behind the scenes to promote these tribes to migrate here, it should not be natural, this is also a hidden danger." Chu Nan let out a sigh of relief, shouted Bai Fumei and went out.

Chu Nan walked all the way out of the residential area and came to the industrial zone, and now the industrial zone has a prototype, and there are all kinds of things, of course, they are the most basic simple processing, the main thing is manpower, and there are some people who use water conservancy, and they don't use a lot.

Chu Nan walked around the industrial zone at will, without a specific purpose, just to see what kind of industrial zone he built in this other world could develop.

Up to now, it can be said that the Tianhuo clan has left the primitive society, if you want to count, it can already be regarded as a feudal society, from the perspective of productivity, it has entered the agricultural civilization, and the hunting civilization has withdrawn from the historical stage.

Of course, this is only the Tianhuo tribe, the other tribes are still in the stage of hunting civilization, as for those big tribes, after his understanding, they are basically at the end of the hunting civilization, the early stage of agricultural civilization, and have not yet completely entered the agricultural civilization.

Under his guidance, the Heavenly Fire Tribe has completely entered the agricultural civilization, and is about to cross the initial stage.

Because the agricultural production tools have been large-scale use of iron tools, and there are more cattle, through the calculation of Chunan, for each solar term has also been summarized, it can be said that the agricultural civilization is quite advanced.

"Huh? Do you still use manpower? Chu Nan saw that many people not far away were holding huge wooden hammers to scoop rice, one by one they were tired like a dead dog, panting heavily, and sweating on their bodies, just like that, it is said that there are still many people in the tribe who can't eat the rice with the skin off, fortunately there is wheat, otherwise, they can only eat the rice with the skin.

Chu Nan shook his head lightly, and said secretly: "Sure enough, the accumulation is not enough, I wanted them to summarize the accumulation by themselves, and then summarize the experience and improve the tools, but looking at the current situation, it is basically impossible, whether it is rice or white flour, it is all artificial." ”

The white noodles that Chu Nan ate by himself were all processed by Bai Fumei, and the method was not passed on, in order to let the clansmen figure out their own ways to see if they could stimulate the innovative thinking of the Tianhuo clan, more than half a year has passed, and there has been no improvement at all, and it is still the knowledge he has taught in the past, which makes him somewhat disappointed.

But in the end, he was relieved, after all, the other party had just stepped into the agricultural civilization from the era of Ru Mao drinking blood, and if he wanted to accumulate enough experience, it would take at least more than a hundred years to become it.

In the end, Chu Nan came to the factory that produced various tools, and saw that the people inside were busy producing all kinds of tools, hoes, axes, saws, chairs, beds, etc., one by one.

"Chief, you're here." Tie Niu was patrolling inside, and suddenly saw Chu Nan and hurriedly greeted him.

Chu Nan said casually: "Well, I'm just coming to see, Tie Niu, look at those rice clansmen, it's too hard, can you find a way to come out with an automatic rice cooking tool early, which can not only liberate them from that kind of tiring work, but also improve work efficiency by the way, with the speed at which they can eat rice, they can't supply the clansmen with food at all." ”

Tie Niu scratched his head and said: "The clansmen have also come to the Ministry of Industry to say it a few times, but we have thought of many methods, but in the end we still can't solve it, and in the end we always need people, maybe I'm not smart enough to think of the right way." ”

Chu Nan walked forward slowly, and finally came to the side of the rotating waterwheel that was hit by the river, and pointed to the waterway: "Can you make a tool for using the waterwheel to make an automatic rice scoop?" ”

The Iron Bull looked at it without stopping for a moment, and the rolling and spinning waterwheel fell into deep thought, thought for a long time, and said with some shame: "The Iron Bull is stupid, and he can't think of any good way, please ask the chief for advice." ”

"Can you make the axle of the waterwheel extend, and then make some solid protrusions on it, and use the lever principle to achieve automatic rice scooping?"

"Let the axle of the waterwheel be extended, and there are some protrusions on it, using the principle of levers? How does leverage work? I seem to understand a little, chief, I'll go back first, ask the chief to atone for his sins, the principle of the lever, the principle of the lever, the principle of the lever, the waterwheel turns, the waterwheel turns...... How did I not think of that?. Tie Niu muttered to himself, and the last row of heads saluted Chu Nan, and left in a hurry.

Looking at the iron bull who left, Chu Nan was also helpless, although he was enlightened, Chu Nan also knew that if he wanted to make a tool that could really be used by scooping rice, he would have to climb it for at least more than a month, and it was one thing to understand, but to make the new tools really agricultural, and there could not always be small problems in the work, it would take a long time to try, just like studying alloys, of course, this is relatively much simpler than studying and gold.

Looking at the artificial iron, a picture also appeared in Chu Nan's mind, that is, the huge iron hammer driven by electricity in later generations, the machinery used to smash the cast steel, which was essentially the same as the automatic rice attack.

"I don't know if they can draw inferences from each other, and if they can use the automatic rice attack to forge iron tools." Looking at the clansmen who were constantly busy in the distance, Chu Nan shook his head slightly, knowing that his expectations were too high, and something was not quite realistic.

"Innovative thinking, basic science, this kind of thing still has to start from the baby, only get a good education, let them continue to develop their imagination, cultivate independent thinking ability, and the ability to cooperate with each other, in the future can a group of industrial talents, otherwise, the tribe can not do without him at all, once left, it will fall into a state of stagnation for a long time." Chu Nan continued to wander around the industrial zone, carefully looking at various links that needed to be improved, but did not continue to give advice.