A dozen children assembled a rickshaw without anyone's guidance.

It took an hour, about two hours, but it was already quite a step forward, at least compared to the skilled carpenters and other craftsmen, who didn't know anything, and what they wanted to be a reference for children.

These children just recognize the meaning of these numbers, but they only know that the same set of numbers should be combined together, so that the simplest rules can assemble this rickshaw.

"You go up and try it!" Li Hang nodded towards Ying Yun, this new type of manpower is not a new thing several times, but it is this kind of thing that is not a new thing, but it can set off turbulent waves in this era.

You don't have to play any poetry and songs, you just need to carry out the science well.

"It's a way that even a child can understand. Although I know that many workshops have more and better professional workers, but many times we have to mobilize everyone to do these things, and make some simplifications as possible for everyone to do, and that's the best! Then you can see how these things are made, and even children can put them together. ”

In terms of complexity, a model of hundreds of parts in later generations is much more complex than a manpower wheel.

But that's it, even a complete novice can get it done in a short time, and at this point these things have the conditions for large-scale promotion.

This is also the reason why Li Hang wants to promote such things.

Because it's so symbolic.

Once things like waterwheels were popularized, then other things came naturally.

Ying Yun rode up curiously.

In a small rugged waterhole nearby, the water was slowly pumped up.

Although the efficiency is not very efficient, but compared with those who use manpower, with a rope to drag, this way is undoubtedly much more efficient, and has coherence, if you connect a canal above, only a few people need to slowly step on the water wheel, there is a steady stream of water to provide into the canal.

"The only trouble is the size of the problem, the main raw material of this kind of thing is bamboo, and the requirements are basically the same size, which is very troublesome, so when promoting this kind of waterwheel, I suggest that people from all over the country plant a large number of bamboo forests. And it is best to expand the area of bamboo forests on a large scale, and at the same time plant a large number of trees to accumulate wood, so that we can make more wooden waterwheels, windmills, and even some simple agricultural tools in the future. Li Hang said as he picked up Nongsang's book.

Tools!

Ying Yun looked at Li Hang with bright eyes.

Since ancient times, agriculture has been fundamental, and even if Li Hang's workshops are everywhere now, he is putting his main energy on agriculture.

This approach made Ying Yun very pleased, at least Li Hang was not lost.

It is normal for many people to start switching to business after seeing huge benefits, and this is true for many families.

But the foundation of a country's development is agriculture!

Don't look at modern industrialized countries or anything, in fact, before industrialization, these countries were all large agricultural countries, and they were all able to be completely self-sufficient in agriculture.

We can't be self-sufficient in agriculture, talk about the free development of industry, and if we can't solve even the most basic problems of food and clothing, talk about pursuing something of a higher level.

Agriculture is the top priority, if people are stuck in food, there is no need to develop this country, everything depends on other people's faces, once you are restrained by people and a little unsatisfactory, people will starve to death, and this country does not have to think about development.

Relieved, Ying Yun rubbed his legs a little depressedly. "It's good, it's just that I feel my feet are sore after stepping on it for a while."

"It's normal for your feet to be sore, and you don't work as often, so the farmers estimate that they do a lot more work than that." It is estimated that any farmer can easily handle this work, not to mention that these things are not made by one person, and several people can take turns to be responsible for the water supply of a village, which is much simpler than those in case.

If you don't consider the cost, you have to be able to get the rubber out by yourself, and you can even get the manual vacuum pump out by yourself.

If you don't take into account other factors, you can sweep the entire rural area of the country with these things at this time.

At least the peasants would never refuse such a simple good.

In particular, once these things are made by craftsmen in the county or even in the city, they can be sent out in sets.

Compared to whether this thing consumes physical strength, Ying Yun is more concerned about another issue. "Li Hang, how many people do you need to make this thing, and how much time does it take?"

Well, here are three questions.

But in general, that's the problem with this thing.

Touching his chin, Li Hang sighed helplessly. "It really depends on the question."

Li Hang scratched his head helplessly.

There's always a huge difference in efficiency.

"If a worker master does all the whole set of waterwheels, he needs a lot of bamboo, and will waste a lot of bamboo because of a large number of parts without planning to make, and because it is made by one person, he needs to master a variety of techniques, so the production efficiency will be very slow, and it requires very professional and long-term training, but if it is a flower made by our workshop, the cost can be compressed by about two percent, because of good planning and design, so the correct use of materials and leftovers, In addition, many workers do not need to master all the skills of the assembly line operation, and they can also participate in it. In this way, the labor cost can be further reduced, and the assembly line operation, everyone only needs to be responsible for the part they are familiar with, so that they can work very quickly, and the production time will be relatively short. "In fact, this kind of assembly line operation will be available in many workshops, and even unconsciously use it, after all, everyone is eating a bowl of rice, and many things don't even need to order them, they will figure it out by themselves.

However, after all, there is a lack of versatility and communication, so it only appears temporarily in a small number of workshops, and the others either appear occasionally or do not think about it at all.

And this is basically released in the form of rules in Li Hang's workshop.

Here, everyone can still imagine this kind of thing if they think about it a little.

But for Li Hang, what he needs is promotion!