In addition, on the ground in the fire cave, in the distribution of different temperatures, there are many small metal water dissolved into gold cakes, silver cakes, copper cakes, zinc cakes, lead cakes, tin cakes, and discus.

The zinc cake hung down about the wall of a cave, against the wall of a cave, and the copper cake had several colors, which were derivatives of pure copper: bronze, brass, and white copper.

There is even the evolution of the discus, the steel cake, which is located in the middle of the hole.

Because there is absolutely no shortage of carbon in this cave, and the temperature of this big hole must have risen very dramatically at that time.

To increase the temperature, what is needed is the space and time to keep warm.

It's not complicated.

The Bull Demon Fire Cave has all these conditions.

The crescent-shaped dagger was made of molten steel.

After not feeling the temperature of these metals, Amaze picked up the crescent dagger and immediately felt the strong solidity.

This is not only the carbonized steel, but also because of the rainwater in the hole, with a quenching effect, you can imagine the hardness of its surface.

Ah, who is good at thinking, immediately discovered that these are all very remarkable things, and he is not in a hurry to pick them up.

Ah He pointed to the naturally formed crescent moon mold and said: "This is the stone essence burned out of the stone, they are very hard, they must be used as a tool for excavation, as long as we can make such a mold, and find a stone that can produce the stone essence, so we must remember which stone produces which stone essence." ”

Zhang Jingtao listened to it and immediately found that he was proficient in Jinyin.

Undoubtedly, Ah Ah will give Jin later, using the fine sound, and its pronunciation is naturally the 'Jin Jin' sound that collides with metal, because although Ah Ah uses the meaning of essence to express metal, but in fact, the relationship between these two words is reversed.

In terms of order, on the contrary, the golden word of metal appeared earlier, because the word fine was not created before.

And at this moment, I am afraid that this golden word will soon be created by Ah.

Then, the initial essence is the word 'gold'.

For this reason, there is a place name of Jinhua in China, many people do not know its meaning, in fact, its original meaning is the meaning of 'essence'.

Jinhua ham is a very famous food.

The women, who were all talking in shock, agreed, knowing that they should not touch these things, but that they should classify the stones and metals together, and when everyone knew them, they would be able to find them in the field and burn the stone spirits.

The women carefully compared and cleaned up.

Then I heard Ah He say, "Each stone spirit can only take one thing, and the surrounding stones can also be picked up, and only if there is only one kind, don't pick it up." ”

Chu Nu said: "But there are no stones next to some stones, I'm afraid they have all been burned." ”

Seeing that there were a lot of stones she piled up in a corner of the cave, and the types were still very complete, and because it was a corner of the cave, those stones were still intact, and she said happily: "It doesn't matter, I look at the layout of the stones in this cave every day, all in my mind, I even remember where there was salt and alkali by the fire, you picked up the stones over there according to what I said, and matched them with the metal here." ”

Chu Nu agreed, listened to Ah He's command, and got busy.

When Zhang Jingtao saw it, he just wanted to laugh in his heart.

The invention of metal smelting, which later generations thought was extremely complicated, was actually so simple.

This hardware, because Ah Ah likes to collect stones, and the relationship between making a melting pot was served by Ah Ah in a pot!

He had no doubt that even if he didn't eat oil, Ah Ah would find out about it sooner or later, because Ah Ah had already understood that people need sheep gas, and burning also needed sheep gas, and he also knew the use of charcoal, and he also created the cross fire method, so he would not be afraid of the fire hole being extinguished.

Therefore, in order to save fuel, Ah Ha will inevitably play the means of sealing the cave to reduce the input of amniotic gas, but he does not know that the vent is still enough to enter the amniotic gas, which will only create the high temperature of the entire cave, so once the high temperature ignites the talents hidden in the cave, it will inevitably cause such a fire, thus burning the metal.

Or, even if Ah only burned metals with lower melting points at first, this discovery would inevitably allow her to discover all the metals gradually.

For this reason, Zhang Jingtao immediately discovered that in modern times, all the races who can only play with fireplaces cannot invent metal manufacturing, and only the Chinese people who are good at playing with earth pits understand the concept of cellars and have the ability to burn metal in ancient times.

Logic is the best evidence, this is cause and effect, without cause, where does the effect come from?

In Huaxia, you can find all: cause!

It seems that Ah He, who became 'Huozheng', plans to change his career to be 'Da Zhurong' in the future.

Zhang Jingtao was happy in his heart, but also went to take a closer look at those metals, and picked up one from time to time to take a look.

It turned out that these metals were really whole.

Even the daily hardware is complete.

As for what is hardware?

Indeed, many people don't know what kind of hardware is used in daily hardware, because there are far more than five kinds of metals, and they all seem to be commonly used.

For this reason, many people say that the ownership of hardware should be: gold, silver, copper, iron, tin;

or: gold, silver, copper, lead, tin;

Wait a minute.

However, no matter what, almost all gold and silver are included, but the question is, hardware should be the best metal for daily use, so why is gold and silver included?

Their application range is not wide, scarcity is by no means a reason to become a daily use, hardware is to be used by everyone, enough for daily use.

Fortunately, Zhang Jingtao knows that the real hardware is: silver, copper, gold, aluminum, and zinc.

For this reason, he was really surprised when he first saw the aluminum in the hole.

Can you burn aluminum?

Isn't it something that can only be obtained by electrolysis?

Zhang Jingtao was really surprised by this, and then thought about the smelting knowledge obtained from Luo Anguo, and then thought that Luo Anguo also said that aluminum can also be fired through alkali, salt, fluorite, bauxite, and higher furnace temperature.

And these things, are the usual things of Ah, fluorite is more in the later generations of Jiangsu and Zhejiang have a lot, the alum word in the bauxite soil, is a fake word, with ordinary words, you can see the universality of the earth.

For this, aluminum is produced, which is not surprising.

It's just that in the process of burning aluminum, whether there is a reaction between salt and alkali and other minerals, because of Luo Anguo's method of burning aluminum, he didn't remember it in detail at the time, after all, the craftsmen of the Warring States period still know those methods, Zhang Jingtao at that time thought that there was no need to remember any details, metal smelting, naturally there are craftsmen to inherit, as long as Huaxia is not destroyed.

In short, aluminum will also be placed in it, because the definition of this hardware is based on electrical conductivity.

In ancient times in China, the silk people have long used electricity, and electricity is undoubtedly like a miracle, for this reason, the metal with good conductivity has been increased in importance.

Gold and silver will belong to hardware, and it is precisely because of this situation that it also proves how early Huaxia used electricity.