The problem encountered by Mu Mu was so serious that he had no clue.
That is, he was unable to chisel a piece of stone into a cylinder that was not too thick.
It wasn't that the stone was too hard to cut, nor that his strength was too weak, but that he couldn't draw a regular circle on the stone slab where the stone mill would be formed.
If he couldn't draw a regular circle, he couldn't cut a regular round stone mill.
It was really frustrating to say that the matter of digging stone mills was actually troubled by such a thing that he had never thought about at all.
He tried for a while on the granite slab but failed to draw a regular circle. In desperation, he had to ask the carpenter for help.
After hearing what Mu Mu said, Lame came without saying a word, but he felt a little disapproving in his heart. Isn't it just a circle? Such a simple thing.
As a result, after picking up the stone and drawing on it for a while, the limp became weak.
Facts have proved that a seemingly simple circle is not simple at all to draw.
Shi Shi, who often held the penholder, passed by here. After understanding the dilemma between the two, he volunteered to take action.
Although the circles he drew were rounder than those drawn by the wood and others, they were still a little worse.
After trying for a while but all ended in failure, the smart and studious Shi Shi was also made lose temper by this simple circle.
Wanting to ask Shenzi for a solution, Shenzi went to Salt Mountain. After hesitating for a while, he had no choice but to ask the second wise man in the tribe, Shaman.
Wu was very enthusiastic about using beans to make soybeans. After hearing about this, he came over immediately.
After a lot of planning, I was still at a loss.
For a while, several people were holding their heads here and thinking hard.
A simple circle confused all of them.
Wu scratched his scalp in distress, causing many hairs to fall out, so that the already thin hair became even thinner, accelerating the process of getting closer to the Mediterranean...
At this time, Han Cheng was in Yanshan.
After explaining the structure of the stone mill to Mu Mu, he led the Gouzi army and some people from the tribe to Yanshan.
The stone grinding can be handed over to them and the wood can be made, but the salt brine needs to be done by him personally.
At this time, Yanshan has also undergone many changes compared to a few years ago.
The desolate scene has become much smaller, and there are a lot more people.
In one area of the Salt Mountain, a lot of gravel was scattered, and there were also traces of human hacking on the stone walls.
This is the trace left by the people of the Qingque tribe who have been knocking salt mines here to cook salt for a long time.
The vegetation around the expanded and renovated spring not far from Salt Mountain and downstream was not prosperous.
On the one hand, it was trampled back and forth by people who cooked salt, and on the other hand, it had something to do with the thin layer of white frost on the ground.
This is a man-made saline-alkali land, and it is foreseeable that this saline-alkali land will continue to expand as time goes by.
This is the first trauma that the people of the Qingque tribe have left on this land as human civilization continues to develop.
The salt ore is smashed into pieces, put in a large stone mortar and smashed into as fine a powder as possible, then put into a large pottery pot filled with water and stirred to melt.
After a slight sedimentation, put a linen bag wrapped with charcoal on it and start filtering...
People who often cook salt are already very skilled at doing this.
But this time it was different.
In the past, a basin of water with salt mineral powder dissolved in it was filtered to the end, and the remaining turbid sediments would be poured out. This time, Shenzi did not do this. Instead, he had the turbid sediments mixed with
A large amount of water with finely crushed stone foam was left and stored in a clay pot.
Although they didn't know what the Son of God wanted these things for, they still did it.
Of course Han Cheng wanted these things to make salt brine.
His idea is very simple. The previous procedures produced salt, and presumably the salt brine is among the things that are filtered out.
Salt brine is a very toxic substance, mainly due to its high concentration of various chemical components. He has also heard of some people committing suicide by drinking salt brine.
However, salt mines that have not been filtered, purified, and purified will also cause poisoning and death if people eat too much.
Comparing the two with each other, it is not surprising to know that salt brine is among the things that are filtered out.
What troubled Han Cheng was how to extract the salt brine from these impurities.
Han Cheng was stunned for a while facing the turbid earthenware basin. He couldn't think of anything and just felt a headache.
The matter of time travel is really not suitable for liberal arts students.
If you travel to a familiar dynasty, as a liberal arts student, you can also use familiar poems to slap historical celebrities in the face, or based on the familiar historical process, you can change the direction of history quietly and presciently.
.
But traveling directly to this era is really a bit confusing.
Every time when it comes to knowledge about physical chemistry, Han Cheng will basically feel frustrated that he has nothing to say.
"Cook them too."
Han Cheng, who has a big head, can only treat a dead horse as a living horse doctor. It doesn't matter whether he can do it or not. If there is a problem or not, let's poke a few sticks first.
Even if the method is unreliable, it is still better than sitting here feeling melancholy without any solution.
The person who cooked the salt was a little stunned when he heard Han Cheng's words. Could it be that salt can be cooked from these things that were thrown away in the past?
I was confused, but my men were not slow, and soon set up another pottery jar.
Pour the muddy water mixed with a lot of stone foam into it and start boiling it.
After a while, the water boiled and white steam evaporated. At the same time, the water became more turbid.
Han Cheng, who was standing aside and watching, couldn't help sniffing. The possibility of obtaining salt brine using such a crude method was really not very high.
The flame continued to burn, and the water in the pottery jar gradually disappeared, and some white things appeared at the bottom of the pottery jar, mixed with many fine stone foams.
Han Cheng asked someone to stop the fire, took out a small bit from it, and gently licked it with the tip of his tongue.
It's full of flavor. In addition to the salty taste of salt, there are also some messy flavors mixed in.
Although I couldn't tell what the taste was, I was sure that the taste was not wonderful at all. After just one lick, Han Cheng couldn't help but grin.
And with this licking, some stone foam remained on the tongue, which was extremely uncomfortable.
Han Cheng rinsed his mouth for a long time before he regained his composure.
It is estimated that only Uncle Lu, a pervert who used to practice his tongue on salt mountains, can withstand such a taste.
After rinsing his mouth, Han Cheng picked out the small white pieces mixed with the stone foam little by little, with a confused look on his face.
