I am a primitive

This is why Han Cheng sniffed.

At that time, ammonium nitrate fertilizer was available, and sulfur and charcoal could be bought. After mixing soil explosives, they could deal with the stone layer encountered in the well.

If your own tribe encountered a stone layer when digging a well, it would be uncomfortable.

Although I remember how to do it, there is no nitrate or sulfur, and only charcoal is useless.

It is also because of this that Han Cheng's mood at the moment is more disturbed. He always comes here to wander around when he has nothing to do, hoping that the water well will come out sooner and he will not encounter stone layers.

Otherwise, depending on the current conditions of the tribe, once encountered.Nine times out of ten, it is necessary to refill the well that has been dug deep, and then choose another place to dig, try your luck.

"Okay! Pull!"

After looking here for a while, there was a sound from inside the well.

The people guarding the mouth of the well, after hearing such a sound, began to grab the rope and pull it up vigorously, and the rope was tightly stretched.

After a while, the stump filled with soil came to the ground.

When the people on the top pull up the top of the tree, the people inside the well will stand close to the wall of the well and try not to stand under the top of the tree, lest the soil or the whole tree with the soil fall down and hit them. to people.

The person above put the soil-filled tree nut farther from the wellhead, took the rope with the hook off the curved handle of the tree tree, hooked another empty tree tree, and lowered it.

After finishing all this, the man went to another place with the pile of soil, poured the soil pulled out of the well into a relatively low-lying place in the yard, and stepped on it with his feet.

It is not easy to lift up the soil one by one. The well is not deep enough now, so it is better to say something. When the well is deeper, it will be even more difficult to pull the soil up.

After standing here and looking at it for a while, Han Cheng remembered a simple tool that is often used in conjunction with the well - a pulley.

Han Cheng has seen things like potter's wheels, but not too many.

This is mainly because, after every household there began to dig wells, a better and more convenient water-drawing device than the potter's wheel appeared.

This kind of water drawing device is called 'killing well' in their place.

Because of the use of the principle of leverage, it is very easy to use the well to draw water. Only one hand is needed, and the water in the well can be pumped out without much effort, which is much faster than the faucet.

Moreover, there is a prerequisite for installing well killing made of pig iron and rubber, that is, a well platform above the ground needs to be built on the wellhead, and a relatively heavy cover should be placed on it.

In this way, not only can dust and other things be prevented from falling into the well, but there is no need to worry about children at home accidentally falling into the well.

Therefore, the potter's wheel, which has been used for many, many years to draw water from the well, was quickly eliminated.

However, what is eliminated in later generations is undoubtedly a sharp weapon in this era.

At least until the tribe has no ability to make a sharp tool for drawing water like 'squeeze the well', the potter's wheel, a simple, practical and inexpensive water-taking tool, will not be eliminated.

It is really not easy for things like killing wells to appear in the tribe. For pig iron casting, wait until you find high-quality coal and iron ore, build blast furnaces, and point out the steel smelting technology, and the casting technology will be further improved. It is possible to create it even if it has been improved.

However, the rubber sheet covering the opening is really a big headache. Maybe you need to drive a small boat far away to find some back, and then there are a long list of technical problems and other things that need to be solved.

So, something like a technology tree really doesn't mean that you can click it out if you think about it, nor does it mean that you can do it if you know how to do it. You don't even have raw materials, so what's the use of knowing more?Not to stare blankly.

Instead of thinking about something unrealistic, it is better to first create some tools that can be put into practical use and improve productivity based on the existing conditions.

It is faster to find a good horse by riding a donkey than by walking on two legs.

Han Cheng naturally knew this truth, so after standing here for a while, he went back to the room and got a pen and paper to sketch the pulley.

The structure of something like a potter's wheel is very simple, and it can be regarded as an enlarged version of the car key of a very cool four-wheeled car hanging on the waist.

It's just that the part that is put into the front of the car and used to rock the car is longer, and the middle part is a cylinder that is many times thicker.

This is because if the part used to wind the rope on the potter's wheel is thick, more well rope can be wound on it with the same turn, and the bucket can be pulled out of it faster.

The structure of the potter's wheel is simple, and after repeated "honing", Han Dashenzi's painting skills have improved a lot, so Han Chengcheng sketched it without using too much effort, and then took it Go find the master craftsman who is lame.

Under Han Cheng's instructions, the second senior brother used meteorite to make saws and plane blades for carpenters.

Up to now, the carpenter's room has a whole set of tools made of meteoric iron.

Everyone in the carpenter's room headed by Lie has not recovered from the excitement of getting the meteorite tools. Every day, as soon as they walk into the carpenter's room and see the meteorite tools inside, they can't help but beat each other. Like chicken blood, the effect of morale bonus is simply not very good.

When Han Cheng walked in, several people were still busy working inside.

Even if there is not much work to do, in order to use some extremely convenient and easy-to-use meteorite tools, he will try his best to find some work to do.

Therefore, when they saw Han Cheng walking in with a blueprint, Lie and the others were extremely excited.

Because this not only means that they have made new things, but also means that they have more opportunities to use meteorite tools.

Han Cheng handed the blueprint in his hand to Lai, who watched it carefully, and the other carpenters gathered together to watch it, and the jingling carpenter's room became quiet.

"Do you understand?"

After a while, Han Cheng asked with a smile when he looked up lamely.

"Don't worry, Son of God, it will definitely be done!"

Lame now has the demeanor of a master craftsman, with the confidence that the top craftsman of the Qingque tribe should have, when he heard the question from the Son of God, he slapped his chest loudly as a guarantee.

A personality can be cultivated, and it also has a lot to do with its position.

For example, Lai became the most outstanding person in carpentry and weaving in the tribe. After his status in the tribe was greatly improved, Lai's temperament became different.

It's no longer the previous submissive, careful companionship, who didn't dare to look directly at things.

Instead, I have become confident and can walk straight.

If it wasn't like this, he wouldn't have dared to push his spouse away just a few days ago.

"That's good. If you can make it as soon as possible, make it as soon as possible. After you make it, you can put it on the well.

However, the piece of wood used as a shaft must be made of strong wood, otherwise it will be bad if it breaks when lifting water on it. "

Han Cheng smiled and dealt with the lame.

The potter's wheel he saw in later generations had an iron rod as the middle shaft, and its overall structure was similar to that of a four-wheeled or tricycle that burns diesel. alike.

However, there are no big iron rods in the tribe, so they can only be replaced by wood.

Fortunately, using a potter's wheel to lift water will not be too much at a time. The jars used to lift water in the tribe can hold forty or fifty catties at a time, and they can't hold more. Wood can also be used as a shaft for load-bearing inside.

Limp nodded vigorously, expressing that he had understood the meaning of the son of God, and then he was busy with the meteorite tool.

First find a piece of solid wood that is as thick as an adult's arm, measure the length, and leave a mark on the thinner end, then let the cat's ear hold the meteorite saw and cut it off along the mark .

And he does the rest.