Divine Desert Island Survival System
Seventy-eight, the role of sodium oxide
Now, what Zhao Yunxiang is most afraid of is that there is something wandering around the shelter.
After hearing this sentence, Zhao Yunxiang felt that it was necessary to build a fence around the shelter to prevent wild animals from entering the shelter.
Returning to the bamboo house with Han Qianluo, Lin Qingyu looked at Zhao Yunxiang anxiously, "Just now I went to the bathroom over there, and when I heard some movement in the grass, I threw a stone, but... saw a wild beast!"
"Beast??" Zhao Yunxiang frowned and thought, then asked, "Is it big?"
As for wild beasts, those known to pose a threat to humans include adult wild boars, crocodiles, giant pythons, and... the giant beast that scared wild boars in the woods last time!
Could it be... that giant beast? ?
"I don't know, I was frightened by that beast at the time, and I always felt that it... was big, at least, with big ears!" Lin Qingyu frowned, her big eyes rolled around flexibly, as if she wanted to replay the horror scene in her memory.
It's a pity that I only saw it just once in extreme panic.
"Big ears?" Zhao Yunxiang thought for a few seconds, and he could completely rule out the terrifying beast he saw in the grove.
"That guy shouldn't be very big..."
Zhao Yunxiang said thoughtfully.
"How do you know?" Han Qianluo asked curiously.
"Scientists abroad have done experiments. When people are frightened, the objects they see will be magnified in size because of fear. It is like the moment a house cat appears, because the hair on its body is too like a lion. You suddenly captured that moment. Instantly, you think you're a huge lion."
Zhao Yunxiang made some explanations.
"I remember, it seems to be a documentary filmed by the Discovery Program." Lin Qingxuan frowned and thought carefully, "I forgot what it was. The eyes are red and they can fly."
"The Mothman!" Han Qianluo said, "When I was studying abroad, I heard many legends about the Mothman."
"Okay, it's good that you know!" Zhao Yunxiang said, "You wait here, if you have time, collect shells by the sea, all shells, including conch."
"What do you collect shells for?" Lin Qingyu asked curiously.
"Just do it!"
Zhao Yunxiang didn't say anything about the shells, but walked straight towards the small forest on the side of the bamboo forest.
Before entering the grove, Zhao Yunxiang specially put a bubble shield on his body. Although the feeling of being restrained was not good, the mosquitoes couldn't pierce it.
"Buzz..."
Mosquitoes circle around Zhao Yunxiang. Their eyes are equipped with thermal imaging. They use their eyes to find nearby targets and their sense of smell to find distant targets. These blood-sucking creatures can smell the smell of human beings removing carbon dioxide a mile away.
There are mostly shrubs and weeds here, and girls like to go to the toilet here.
"I really can't figure out those women, the grass is so tall, their pricks are still peeing here?" Zhao Yunxiang muttered as he walked, looking for the beast Lin Qingyu mentioned.
After searching around, but couldn't find any clues, Zhao Yunxiang thought it might be a rabbit or something, after all, the rabbit's ears are also big.
Just as Old Zhao turned to leave, a pair of eyes poked out from the bushes, staring at Zhao Yunxiang coldly.
It seemed that he had sensed something. Zhao Yunxiang felt that he was being spied on by something. His perception had been greatly improved. He felt that there was something behind him.
However, when I turned around, I found nothing.
"Damn, did you meet a veteran?" Zhao Yunxiang murmured after scanning around, "It seems that someone really missed it.
"
Now it seems that the production of the fence is urgent, and the fence must be completed in the shortest possible time!
It is estimated that the next few days will be spent in the shelter!
Zhao Yunxiang summed it up, and it will take at least 3 days to complete these tasks.
"Did you find anything?" Han Qianluo saw that Zhao Yunxiang had returned, and he was not bitten by mosquitoes.
You must know that Zhao Yunxiang's skin is very afraid of mosquito bites. After being bitten by mosquitoes, a big bag will form, and it won't even go away for more than ten hours.
Today is not bitten by mosquitoes, it is very strange!
The main reason is that someone went in with a shield, it is silky and ultra-thin, and you can enjoy the bondage experience to the fullest!
"No~!" Zhao Yunxiang shook his head, "Maybe it's a rabbit, er, rabbits have big ears too."
"Well... I hope it's a rabbit..." Lin Qingyu pouted and said.
"How did you find the shells?" Zhao Yunxiang assigned the job to search for shells, and now there are many clam shells and conch shells lying in the open space of the shelter.
As for those huge giant clam shells, don't join them, because that's their bowl!
After the kiln is built and the pottery is fired, the pottery bowl can be used!
Now, though, the snake skin of the boa constrictor must be tanned first!
As early as prehistoric times, our ancestors knew how to use animal skins to hide their shame and keep warm. At that time, the animal skins were not specially treated, and they were very uncomfortable to wear.
With the continuous attempts of the predecessors, there is finally a set of things to increase the flexibility of leather, that is, soaking in water, deacidification and other processes.
However, all they have is the snake skin of a boa constrictor, without too much fur, and now it is just the subcutaneous tissue attached to the snake skin that is not easy to clean.
Therefore, caustic soda, sodium hydroxide, is needed to soften and inhibit bacterial regeneration.
Of course, Zhao Yunxiang does not have sodium hydroxide, but there is ready-made calcium oxide, that is, lime!
The chalk and gypsum we come into contact with are all made of lime, and they are made of calcium hydroxide and slaked lime.
The source of lime is partly from special stones, and some is obtained from shells.
That's right, the powder after these shells are crushed is calcium oxide!
"Do you want to use shells to make lime?" Lin Qingyu saw Zhao Yunxiang tear the snake skin off the tree and soak it in the seaside water.
There are fewer bacteria in seawater, and the salt content of seawater contains alkali, which has a certain degree of corrosion, which can improve the flexibility of snake skin.
If you add lime powder for tanning, I believe it should be able to make the desired appearance.
Tanned leather is just an attempt to...
No, it's a toss!
People don't make troubles in vain, although Lao Zhao is 23 years old this year, he still has a heart of troubles!
"Okay, let's start now, crush the shells!"
Zhao Yunxiang came to the shade with a bunch of shells in his arms, and smashed the shells on the anvil with a hammer.
The hammer is naturally the hammer made of gears, and the anvil is the casing of the gearbox removed from the yacht. This casing is very thick and flat, so it is very convenient to make an anvil!
The shells are crushed, and the thickness of these things is different, and they can be separated by blowing. .
Just put the shell powder on the leaves, and then slowly sprinkle it in the face of the sea breeze. The larger particles fall straight down, and the smaller particles are driven by the wind to float away.
After dozens of minutes, many fine particles are sorted out, and those with larger particles are hammered until they become powder.
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