Chapter 28 The method of firing pottery without building an earthen kiln
The next day, the senior brother did not lead the people out for hunting after dinner as usual. Instead, he followed Han Cheng, the seven or eight children and Lame to the river.
There were also shamans and other people in the tribe who were traveling with him. They were very curious about what good things the Son of God had come up with.
After a night, these clay embryos have dried a lot, and the water on the surface has disappeared. If you touch them lightly with your hand, you can feel that these clay embryos are much harder than yesterday.
Wu looked at this piece of things with a thoughtful look in his eyes. If these things are really hard enough, they can indeed hold a lot of things. As the Son of God said, they are far more useful than stone bowls and basins.
But the key is that this thing is made of mud, how can it be strong?
The witch was very puzzled. Even though he had the knowledge passed down from generation to generation of witches, he still couldn't figure out what method the Son of God would use to harden these things made of mud.
Wu is very smart. He knows that the mud is not strong, and the Son of God must know it. Since the Son of God knows and still says and does this, there must be a way to make the mud strong that he doesn't know.
"Use fire to burn."
Han Cheng explained his method in Mandarin.
It's just that after this method was explained, the witch and senior brother were even more confused, because in their understanding, fire can burn many things!
When mud is burned with fire, shouldn't it become looser? How can it become solid?
There is no way to communicate, because it is too laborious to explain this series of things!
Han Cheng had no choice but to resort to the old method of attributing all this to the gods. He did not explain too much, but explained it with the final results, which could save a lot of words.
After coming here for a visit, the elder brother, who not only failed to understand but became even more confused, took everyone who was also confused and went hunting. Han Cheng took the little guys in the cave and continued to create clay embryos.
Wu did not go back, but watched Han Cheng and the minors in these tribes playing in the mud.
Watching them make these mud into strange things, after roughly understanding the process, Wu also joined the ranks of playing with mud...
On the third day, the clay embryos made on the first day were already half dry. Han Cheng looked at the more than fifty clay embryos placed on the ground, and temporarily stopped making the clay embryos, but began to lead the
These people collect dead grass, fallen leaves, twigs and other things.
Because it is spring now, and people here do not have the habit of setting fire to the slopes, there is a thick layer of dry grass on the ground.
After these minors heard that through fire, they could make the things they made with their own hands strong, they had already aroused a strong interest.
You can work each one enthusiastically without getting tired.
By the afternoon of that day, a large pile of hay and broken firewood had been piled nearby.
On the fourth day, the first batch of clay embryos were almost dry. Due to the weather, except for three that had cracks and could not be used, the rest were intact. Han Cheng felt relieved.
In one breath, it’s a good start, right?
Han Cheng threw away the three broken ones, then circled a place of about two square meters nearby, had someone dig down to a depth of thirty centimeters, and then spread a layer of hay on top.
With the help of Senior Brother and others who came to see the rare thing, the clay embryos made on the first day were carefully placed on the hay and arranged neatly, leaving a gap of about five centimeters between each clay embryo.
Then, under Han Cheng's demonstration, everyone filled the gaps with the hay and firewood collected yesterday and pressed the porcelain firmly with their hands.
Then break the withered grass into smaller pieces, mainly with stem-shaped withered grass that is resistant to burning. Cover these clay embryos, covering about ten centimeters each time, and try to compact them with your hands, and then continue to add grass until they are about to be covered.
The jar made by Heiwa, which was more than one meter high, was covered with a lid and another ten centimeters was added before stopping.
At this point, all the pottery has been covered up by broken grass, leaving nothing exposed.
Just when many people, including Wu, thought they could start lighting the fire, Han Cheng issued an order that surprised them.
Han Cheng did not let him light a fire, but asked someone to fetch water from the river, wet the newly excavated floating soil and mix it with the mud.
Different from the relatively hard mud used in making mud tires, according to Han Cheng's requirements, the mud this time is relatively soft and can be called thin mud.
Well, Heiwa, Zhuang and the others are fighting with Xini right now...
Under the watchful eyes of everyone, Han Cheng picked up the mud and applied it to the pile of firewood covered with mud. From top to bottom, all the firewood must be sealed until the firewood was no longer visible from the outside.
After the past few days, Heiwa and the others have become familiar with playing with mud. After Han Cheng's demonstration and Han Cheng's order, they began to imitate Han Cheng's example and build firewood piles from different angles.
Apply thin paste.
At the bottom of the pile of firewood, Han Cheng did not let Hei Wa or the others do it, but made the paste himself.
There were four 20 cm square gaps left on all sides next to the ground, which were not sealed with mud.
"Send fire."
Han Cheng spoke, and without him appointing a candidate, Junior Brother Sha who was watching here quickly ran towards the cave.
Although he didn't understand why the Son of God was doing this, he could still feel that things were different from this series of orderly steps.
Fire is coming.
Han Cheng took the burning tree trunks from Junior Brother Sha, moved them to the four empty spaces, and lit them one by one.
Because they were previously filled with specially crushed dry grass leaves and the like, and were pressed very hard by hand, they would not burn very quickly, and they would not even make an open flame.
Especially after Han Cheng was sure that the fire would not be extinguished and sealed the four ignition ports with thin mud, leaving a small hole less than half a centimeter in diameter in each for ventilation, the flames inside burned even slower.
.
Han Cheng, who breathed a sigh of relief, told Wu, Senior Brother and everyone that it would take three days to know the result.
This made everyone anxious to know the results a little anxious.
However, there was no other way. Everyone stayed here for a while. Knowing that there was no way to see the results in a short time, the senior brother took the hunting team out to hunt.
In spring, when the glaciers melt, swimming fish are not as easy to catch as in winter, and hunting wild animals becomes Duluo's primary food source.
Wu did not go back, but stayed here with Han Cheng and others.
After playing around for a while, under Han Cheng's call, a group of underage primitives started making clay embryos again.
However, unlike in the past when they were attentive, today they seemed a little absent-minded. From time to time they would turn their heads and look at the pyre sealed by mud, hoping that the motionless pyre would bring magical things soon.
Not to mention them, even Han Cheng glanced at it from time to time, and sometimes climbed to the ground and looked through the small holes to see if the fire inside was extinguished.
After all, this was his first time making pottery. He had just watched the video once, and he had no idea whether he could do it in one go.
