Chen Jian painted what he said on a clay tablet, which was actually just a formality, but this formalistic approach was still very popular.

The slaves were contemplating their lives sixty months from now, full of joy. Some people hope that the snow will melt soon, and they will go to plow the ground, and they will have ten more steps a day, and they will have their own step in the future.

They feel that as long as they have their own land, everything will be fine, and they will pay a pound for three catties, and as long as they work a little more, they will always do it.

Chen Jian also calculated the thread that women want to spin, and there are not many jobs that must be busy every year. In addition to spinning, they also have to peel hemp skins and make wheat.

These slaves seem to be equal in status to the wild people after sixty months, but in fact they may miss the days of being slaves, having nothing but a pair of hands, and it is not easy to survive, but they may need to work more often in order to survive.

For Jian Chen, these are trivial matters, he just doesn't bother to care about these slaves, it's not worth spending time on whipping them every day, and the clansmen's ruling skills are not rich, and the efficiency is too low.

When there are more slaves in the future, there will be another way, if the village is stabilized and the city is formed, the people will learn how to manage the slaves in five years, and maybe there will be a different way at that time.

After cleaning up these little things, he took a few people to the copper furnace, which was the real big thing.

Metal is the backbone of civilization, and since you have decided to put down roots here, you can only crush those two threatening tribes as soon as possible.

It can be interesting for a group of spear-wielding soldiers to meet a group of Stone Age barbarians.

He brought a few people with him, because he needed to assign a few people to do this kind of thing, accumulate experience, and improve efficiency.

He also knows nothing about smelting, relying on principles to push back, there is an insurmountable gap between theory and practice, so these people can only need to grope a little bit.

For example, the ratio of copper ore to charcoal? For example, when can I refill? All of these have to be tried countless times.

What can be done is to avoid taking the wrong path, for example, the first bronze smelting in history should be tin ore and copper ore smelted together, and this method is not good, so it can save a lot of time and directly smelt separately.

Now the first furnace of blister copper must be smelted first, and the tribesmen do not understand the meaning of smelting, so they only take it as a very ordinary thing, and do not wear red and hang colors to pray to God.

Two people were divided into two people to put firewood in the flue under the copper stove to bake the bottom of the copper stove to drive away the moisture and prevent the copper stove from freezing when it was in use.

He led a few people to smash large pieces of copper ore to expand the contact area with charcoal, and also to facilitate heating and burning.

Large piles of charcoal are fed, and without metal axes and saws, charcoal is an excellent fuel, which can be easily smashed into small pieces, and the moisture in it has been dried, and the temperature is much higher than that of wood.

For the first time smelting, you can only choose to waste, more charcoal and less ore. Later, if you smelt more, and then reduce the amount of charcoal little by little, the significance of the first time is too great, and you can't come up and leave a shadow of failure.

After the charcoal ore is processed, it is added from the charging port, and more charcoal is loaded below, a layer of copper ore and a layer of charcoal are piled up, and some lime is added as a flux for the slag.

The key to smelting is to smelt the slag well, the slag is not smelted well, the metal and the slag are not separated, there are too many impurities in blister copper, and in that case, the shaft furnace is disposable, and the furnace can only be smashed to take out the slag.

After the ore was loaded, Chen Jian still prayed silently, this was his first metal smelting in this world, praying for a success.

The first wisp of green smoke came out of the copper furnace, and the people responsible for pulling the bellows on both sides began to be busy, vigorously pumping the simple leather bellows, tired and sweating, and some smoke came out of the flue on the top of the furnace.

Some copper ore will be fused with arsenic, and that kind of smoke and dust will kill people, and it seems that I am lucky, there is no such highly toxic thing in these copper ores.

Looking at the few clansmen who were taking turns pulling bellows, Jian Chen encouraged: "Work hard, in the future, when you know how to smelt, you can sit and let the slaves do it, you just need to be responsible for looking at it with your eyes." ”

After snorting for a long time, the smoke in the flue above gradually faded, and the temperature in the furnace should be very high.

Chen Jian opened the observation hole near the air outlet and took a look, the ore inside had melted, but only the bottom layer, because not much ore was added when charging, mainly charcoal.

Another part of the material was added, and the copper content in the ore material was not high, and the slag must be more than copper. When the slag is about to approach the observation hole, the slag discharge hole is opened.

The molten slag was slimy, and the tribesmen looked at the fire-melted stones in amazement.

The fluidity of the slag is not bad, at least for the first melting.

Immediately after the slag is discharged, the slag discharge port is blocked with a wooden stick prepared in advance and some charcoal ash to maintain the temperature in the furnace.

This is just the beginning, Chen Jian estimated the degree of charging, and now there are about ten catties of copper in the furnace, the quantity is too small, and the material has to be constantly added.

The person pulling the bellows has changed six or seven waves, and the slag has been discharged a lot, and finally it is time to produce copper.

Jian Chen rubbed his hands, on such a cold day, his palms were already full of sweat, and his heart was pounding.

According to what he said, the two clansmen had already waited for the copper hole to come out and prepared the clay pot.

When the count reached three, the two men took the wooden stick and vigorously poked open the copper hole, and the melted copper juice immediately flowed obediently into the jar, and immediately replaced it with another after it was full.

After the copper juice was almost flowing, the outlet was closed and the material was continued to be added, and now it seems that the smelting was quite successful, and the two blowers provided enough oxygen, and there was no lack of combustion and insufficient temperature.

The copper does not flow out completely, because the copper outlet hole is higher, and the copper liquid left behind can maintain the temperature in the furnace and facilitate continuous smelting.

As soon as the melting starts, it is best not to stop the furnace unless there are too many impurities in the furnace to continue smelting. But now there is not much ore, and it is impossible for these people to go without sleeping, so they have to add some charcoal to keep the temperature in the furnace high, and discharge all the slag to prepare for the furnace to stop.

After the copper juice cooled, the clansmen looked at the two large jars, and felt very heavy when they lifted them, adding up to more than sixty catties.

Smashed the jar and took out the copper molded inside, the color was okay, and the copper content should not be low.

Chen Jian stroked the two pieces of coarse copper, because the shape of the jar was small at the top and large at the bottom, and then looked at the copper furnace that was poured like a goat's milk bag, and seemed to suddenly understand why copper was called gold in ancient times, and why gold was written like this.

Gold, doesn't it look like a copper furnace?

Copper, which was supposed to be the first metal to be smelted, was naturally associated with things like copper furnace crucibles, and it was estimated that the people would be easy to accept when this word was coined.

He drew a word on the ground that looked like gold, and the people who participated in the smelting recognized it at first glance as a copper furnace, on which people stood and frequented......

The pronunciation of this word is taken from the original sound, which is a word that describes a purple and yellow color, and the sound of the color is taken, so there is the sound of the word gold.

At least, when describing the sunset in the future, the tribesmen have one more adjective - the golden sunset.

This gold, which is the gold of metal, is no longer stone.

PS: These two days are even less, quality scum, please forgive me. During the honey retention period, I helped my grandmother stir honey, and was stung into the bee's hat by bees to the eyelids, and my hands were swollen, so I couldn't speak. Tomorrow is still a day, and the day after tomorrow will be about normal. Stealing other people's food and being stung can only endure, and it is not easy to be a robber. Good night, book friends.