“It melted!”

“This is tin ore!”

After the charcoal fire continued to burn for a while, the bottom layer of crushed tin ore began to melt.

Han Cheng, who saw this scene through the hole next to the stove, shouted excitedly.

The others who had been waiting for news on the sidelines also cheered.

Han Cheng watched here for a while and saw that the flames began to spread through the melting tin ore at the bottom layer to the charcoal above. The gradually melted tin ore had a tendency to flow out, so he quickly blocked the lowest hole with charcoal and clay.

“Hoohoo~Hoohoo~”

The person who is suppressing the wind has already been replaced by the third one.

Han Cheng looked down from the top of the furnace and saw that most of the ore inside had melted. He asked someone to poke open the higher hole. The molten slag began to flow out of the hole, while the heavier molten metal remained under the furnace.

"Put in the clay pot and turn on the stove!"

When the ore in the furnace had melted and the slag had almost flowed out, Han Cheng gave an order and immediately two people came over with long wooden sticks.

Place the thinner end of the stick against the hole under the stove and, with a sudden push, poke open the blocked hole.

The wooden stick was quickly pulled back, and the molten metal flowed out through the hole on the stove and fell into the pottery jar.

Even though they had seen copper smelting more than once in the tribe, they still couldn't help but feel surprised when they saw the stones being burned into water and flowing out.

After cooling for a while, the pottery jar was smashed, revealing a pot-shaped metal ingot that was thick at the top and thin at the bottom.

The shape of this metal ingot really looks a bit like the word "gold".

Perhaps this is what our ancestors thought of when they created characters.

Looking at this rough tin ingot, Han Cheng began to think about making bronze.

Han Cheng let most of the people continue to mine the newly discovered tin ore. He left a few people around and added more charcoal into the furnace while the charcoal fire in the furnace was still hot.

Then he took great pains to get some crude tin from the tin ingot and put it into the furnace to continue melting. At the same time, he put a copper hammer head made of crude copper into it and melted it together with the crude tin.

The ratio of tin to copper is roughly one to two.

I remember that when I was reading the general history of ancient times, I once saw a record about the ratio of copper to tin, which was "Gold has six qualities".

Six parts of raw materials, one part of tin and five parts of copper can be used to make bronze, and two parts of tin and four parts of copper can be used to make what kind of utensils...

Han Cheng couldn't remember what specific ratio of copper to tin was used to make bronze, or what kind of utensils it was suitable for making.

Even if he had recorded something on the pottery tablet using pinyin before, it would not work.

Because when he first recorded it, he was vague about this issue.

But there is nothing to regret. With copper and tin, and knowing the saying that 'there are six kinds of gold', all that is left is to make bronze in these different proportions, and slowly you will know what they are suitable for.

The wind continued to turn, and the smoke coming out of the stove became thinner and thinner, eventually turning into inconspicuous green smoke.

As time went by, and after several people had changed their hands to press the wind guru, the crude copper and crude tin in the furnace finally melted and mixed together.

However, Han Cheng did not turn on the stove immediately because he remembered an idiom - perfection.

It refers to the best state achieved when smelting bronze.

Although the two metals in the furnace have now melted, they have obviously not yet reached the level of perfection.

After waiting for a while, as the flame continued to burn, the fire finally became pure green.

Han Cheng no longer hesitated. He picked up the long stick he had used before and poked the hole hard. The green metal liquid flowed out and fell into the pottery jar below.

In fact, it is best to pour the molten copper directly into the mold at this time. In this way, after cooling, you can directly get bronze utensils with a little modification.

However, Han Cheng's decision to smelt bronze this time was hasty. His purpose was to verify whether the copper tin he made could be used to smelt bronze. There was no model at all, so he could only put the bronze juice into the jar, wasting this good opportunity to cast bronze ware.

The clay pot was broken again, and a green copper ingot appeared in front of the people.

Han Cheng looked at the bronze and reached out to touch it. Perhaps it was a psychological effect, but a heavy and hard feeling came over him, making it impossible for him to suppress the smile on his face.

After a while, Han Cheng picked up another thick copper hammer from the side and hammered the bronze ingot hard.

"when!"

There was a sound of metal clashing, and Han Cheng was bounced up with the thick copper hammer in his hand.

He brought the hammer head to his eyes and looked at it carefully. He saw some marks on the rough copper hammer head.

There were also some places on the bronze ingot that were flattened, but not as serious as on the rough copper hammer head.

Sure enough, the bronze smelted after adding tin was much harder than the crude copper smelted simply before.

"Hahaha...the Bronze Age is coming!"

The smile on Han Cheng's face grew bigger and bigger, and finally he couldn't suppress it and burst into laughter.

The fellow apprentice brothers Sha who followed him didn't understand what the Bronze Age that the Son of God was talking about was, but they knew that the Son of God was delighted from the bottom of his heart, and they realized that their tribe had gained a new good thing.

Infected by the Son of God, they all started laughing.

The setting sun shines on the Copper Mountain, on the furnace at the foot of the mountain that is emitting blue smoke, on the blue copper ingot placed next to the smoking furnace, and on a group of people who are laughing heartily.

Heaven and earth are the furnace, creating all things; yin and yang are carbon, and all things are copper.

When the Qingque tribe obtained copper, the people in the tribe also became different after the hardships of life in the past few years. They were very different from other people of that era.

The long-legged man held a wooden stick in one hand and tightly grasped the lucky charm hanging around his neck with the other hand, smiling very happily.

On the one hand, they were happy that there was a new good thing in the tribe.

Another aspect is that because he provided the tribe with information about copper mines and found tin mines, not long ago, the respected Son of God announced that he would be freed from slavery and become a citizen of the Green Bird tribe.

And he is not just an ordinary citizen, but a first-class citizen with an exquisite ceramic identity card!

How could Long Legs not be happy when such a lucky thing happened to him?

He held the lucky charm tightly, unwilling to let go, thinking that the reason why he was luckier than all the slaves was because of the lucky charm...