I am a primitive

Shenzi's strange behavior quickly attracted attention in the Qingque tribe.

Something harder than rock?Stronger than stone?

Wu looked at the lumps of mud placed on the stone slab in front of him, and it was difficult to connect them with what Shenzi said just now.

The stone was the hardest and strongest thing that Wu and everyone in the Qingque Tribe had ever seen. He really couldn't imagine what it was that was harder and stronger than a stone.

Not only him, but also everyone in the Qingque tribe.

Would this thing be rock hard?

Wu looked at the mud ball on the far side, and murmured in his heart. The mud ball had the imprint he poked out with his finger just now.

This is ordinary mud, right?

Thinking of this, the doubts in his heart suddenly became less, because he remembered the pottery and cement in the tribe.

One of these two things is soil, and the other is plant ash that cannot be gathered into piles, and both of them can become extremely strong in the end...

Not long after this relief, doubts arose in my heart.

Miko said that he would use this so-called iron to create more useful tools.

This thing is harder than stone, how can it be built?

Can't figure it out, can't figure it out...

Wu shook his head, feeling dizzy all over.

Let's see what Shi Shenzi does next.

Wu used the old method again—wait and see.

Mountain darkly, vista.

Lu You's poem is really well written.

Han Cheng looked at the lumps of mud on the stone slab in front of him, feeling sincerely in his heart.

As for Wu and the others, Han Cheng is not going to explain too much now, everything will become clear when the iron is trained and the tools are made.

-------------Chapter Dividing Line---------------

In the courtyard of the Qingque Tribe, Hei Wa was digging a hole in an empty space.

Han Cheng used the soil dug out by Heiwa to water and mud.

They are going to rebuild a kiln or an iron furnace here.

The earthen kiln beside the small river outside the Qingque Tribe is fine for firing pottery and tiles, but it is too big for putting charcoal and iron.

Digging soil and mud, building vents... These things were done very smoothly, and within half a day, a brand new small stove came out.

There is a flame burning inside the stove, and the ventilation effect is very good.

It has to be said that Heiwa's technology in building these things is getting better and better.

Han Cheng went to the stone slab and picked up some mud lumps to see, but they were only half dry.

After thinking about it, I took out a dozen or so and put them on the edge of the stove to roast them with fire, so that they would dry quickly and the experiment could be carried out as soon as possible.

After a while, see that the mud bumps are almost dry, and put the charcoal that was burned before into the stove.

On top of the charcoal there are four lumps of mud.

The iron smelting experiment had just begun, and Han Chengcheng discovered the problem.

The charcoal fire of the stove is not burning strong enough.

The solution is to get a small blower or bellows out.

Han Cheng is no stranger to the blower. When the weather turned cold when he was a child, people who fried popcorn would come from the village one after another during the slack season.

A simple stove was set up with a fire inside, and a burnt black thing that looked like a bomb was placed on it.

It contains corn or rice.

After burning on the fire for a while, the 'bomb' was removed from the fire, put one end into a long pocket, kicked hard, and after a loud explosion, hot popcorn was born...

Han Cheng's favorite thing to do at that time was not picking up the popcorn that was thrown to the ground with other playmates, but squatting next to the stove and shaking the blower, also known as Fenggulu.

The structure of this thing is relatively simple. The main thing is to collect the wind generated by the rotation of the inner fan leaves through the narrow air outlet, and blow the inside of the stove.

People who see hope are full of energy.

Complicated Fenggulu Han Cheng can't make it, and there is no problem with simplicity.

If there is no iron sheet to make the outer shell, the model is made of clay, and after drying, it is fired into pottery.

There are no iron rods for shafts or iron sheets for fan blades, so wooden sticks and bark are used instead.

Carve a cross on one end of a wooden stick with a stone knife, and cross two pieces of bark ten centimeters long and four centimeters wide.

A gap of two centimeters is carved at each intersection, and they are stuck together, and then stuffed into the tree stick of the cross.

Tie it up with a thin rope, so that a rotating shaft with fan blades is ready.

Put it in the shell made of pottery, put a stone with a small hole under it, and rub it with your hands, and the wind will come out of the seal.

Put a pre-made clay pot on the air outlet, and insert the other end into the air inlet of the stove. When you rub it hard, the wind will flow into the stove along the pottery tube, and the fire in the stove will become much stronger immediately.

Heiwa's eyes lit up immediately.

After rubbing like this for a while, his hand hurts. Han Chengcheng found a hand press drill, removed the drill pipe, put the shaft with fan leaves in it, and pressed it back and forth a few times, and it seemed easy.

There is one thing that needs to be said, the general Fenggulu is placed vertically, but the one made by Han Cheng is placed flat, so that the hand press drill can be used to fan the flames.

"Whirring whirring……"

Heiwa pressed his hand to press the drill, and looked at the flames in the furnace that fluctuated with his movements, his eyes were bright.

It was very similar to when Han Cheng squatted beside the fried popcorn and shook the wind.

With Feng Gulu, it will be much faster to burn these iron-containing mud lumps.

After half an hour, the iron bacteria pimples placed in the stove turned red.