Sure enough, without Qiu Ming's reminder, Yu thought of a way to control water, even in the real world, the first choice for water control is channeling.

Although Qiu Ming has never done water conservancy work, he has at least seen it on TV and the Internet, and knows the general meaning, so he can tell Yu about it and let Yu formulate a construction plan according to the existing manpower and material resources.

"Yu, look at this river, because of the topography of these places, there is often water rushing to the shore, and it is also an area with frequent floods, if you want to channel, there are two ways, one is to deepen the river, and the other is to widen the river."

"River deepening? How is this possible, even the warriors of the tribe can't do it. Unless there are immortals willing to help, where can we invite the immortals? ”

"I think the widening of the river is a more appropriate method, we need to dig a few narrow places, we need the tools you provide, can you take people and build those tools for us?" Yu looked at Qiu Ming expectantly.

With good tools, it's much easier to dig boulders or something, so that the river widens faster and the water doesn't overflow the river.

"Of course, I'll take some craftsmen with me to help you build these tools, which may not be as hard as I gave you, because there are some special stones in there, but they are certainly extraordinary. If there are some people who can control fire and water, the effect will definitely be better. ”

There are monks in all tribes, and there are more in the royal city, although they all look like they have big shoulders and round waists, and they seem to walk in the body flow, but maybe there are some people who can do magic, just like witches, although they practice the body, some can control fire, and some can control the wind?

It just so happened that Qiu Ming could also take this opportunity to take a good look at what the cultivation method of the monks at this time was, and whether there was anything that could be used for reference.

I don't know if any of these monks came out of the Sanqing Dojo, or if they studied in other powerful dojos. There must be a teacher in a threesome, maybe a small thing that someone is not aware of can make Qiu Ming make great progress. It's like the Book of the Left Dao, which makes it much easier for Qiu Ming to learn the secret techniques in the Book of Heaven.

"Okay, I'm going to ask for someone, but where is it appropriate to build it, is it okay to do this place outside the city?" Yu asked, pointing to an open space on the map.

"No problem, you still need some people to quarry, and you can't forge tools without materials. At most, iron ore is needed, and copper ore is also available. ”

At this time, bronze has begun to be used, but it is not used to make coins, coins are mostly shells, or shells, and the circulation is not widespread, everyone prefers barter. Bronze is used to make some utensils, such as tripods, such as short blades or something, while iron is not available.

Qiu Ming thought about it, maybe it wasn't that he didn't use iron to make tools, but he didn't use it among mortals, at least he didn't see that kind of open-pit mine all the way to Wangcheng. In some places, it is reasonable to say that ore should be formed, but it is clear that someone has taken it away in advance.

"Have you ever thought about how to transport these tools if they are made?"

At this time, there were already people domesticating domestic animals and poultry, and Qiu Ming also saw people riding horses, bulls, and even deer, if it weren't for the nine-colored deer that looked too conspicuous, Qiu Ming rode on the road, it was just to make people look twice.

It's just that at this time there were no saddles, stirrups or anything, not even horse reins, so naturally there would be no carriages, and the kind of carts pulled by people were not seen.

Rely on people to carry and transport it, unless they are all strong men like Yu, and they have to run in a running way. If you were an ordinary person, it would be a waste of time.

Qiu Ming didn't plan to let Yu spend more than ten years to control the flood, in Qiu Ming's opinion, it is not difficult to meet Yu's requirements, manpower and material resources are enough, one or two years is enough.

If he hadn't wanted to explore the world, he would have planned to deal with the flood himself. Now, he's going to be an expert. All you need is the occasional pointer, and nothing else is required.

"I'll arrange for someone to carry it over."

Sure enough, what Yu thought of was this most primitive method, which can't be said to be stupid, and now it's all doing it, but the efficiency is too low.

"There's no need to go through the hassle, I'll teach those people to make some cars, which can be transported much faster and with less effort. When those people learn how to make tools, they can build them nearby, without having to transport them. ”

"Cars? How can a car be used to transport things? ”

At this time, there was no kind of car with wheels, but there was a kind of car carried by several people, called the guide car, which was rumored to be made by a capable person under the Yellow Emperor, and could always point to the south, even in foggy weather, it would not get lost.

But this car has no wheels, it is equivalent to a huge compass, and it is not a means of transportation at all.

"When I make it, you'll understand." Qiu Ming thought about it, these were enough. If he made some more thunderbolts or something, although the mountain would open very quickly, but if he was not careful, many people would die, and he didn't want to get involved in this kind of cause and effect for no reason.

Since Qiu Ming said this, Yu didn't ask much: "Okay, then I'll take someone to these places first, and I'll be back soon, at that time, these tools should already be able to be made, right?" ”

Yu didn't think that this tool could be made immediately, and in his opinion, it must be very troublesome to make. It's like a bronze vessel, how long does it take to make one?

After a while, someone took Qiu Ming to the place outside the city, and some people had already begun to build sheds there. Prop it up with some wood and cover it with grass. The woods are connected not with nails, but with straw ropes and some animal tendons.

These tendons are very strong, Qiu Ming probably tried it, it is stronger than the nylon rope, and it has a certain elasticity, and it is also not afraid of wind and sun.

If you can find a better one, maybe you can ask someone to help you refine a rope-like magic weapon that can be used to tie up the captives later. It would be better if it could be refined and a magic weapon that could automatically track people like the bundle immortal rope, how much trouble could it save.

When those people were building the house, they stood and watched when they saw Qiu Ming, and their faces were inevitably not good-looking. If it's in a tribe, even if the leader doesn't make it himself, he will help carry the wood or something, like this person, just watch.

Qiu Ming also noticed the eyes of these people, and saw that these people seemed to be a little dissatisfied, and even a few of them began to slack off.

He smiled and walked over to the pile of wood. Three in the left hand and three in the right hand, directly lift the wood thicker than the legs, and walk to the edge of the two pits and put it down......