~： Seventy-eight, the role of sodium oxide

Now, what Zhao Yunxiang fears most is that there is something lingering around the shelter.

After hearing this sentence, Zhao Yunxiang felt that it was necessary to build a fence around the shelter. The fence could prevent wild animals from entering the shelter.

and Han Qianluo returned to the bamboo house. Lin Qingyu looked at Zhao Yunxiang anxiously, "I went to the bathroom just now, and when I heard there was movement in the grass, I lost a stone, but... I saw a beast!"

"Beast?" Zhao Yunxiang frowned and asked, "Is it big?"

Beasts, adult wild boars, crocodiles, pythons, and...the monsters that scared wild boars in the woods are known to pose a threat to humans!

Could it be... that behemoth? ?

"I don't know. I was frightened by that beast at the time. I always felt that it was...big, at least, with big ears!" Lin Qingyu frowned, her big eyes spinning flexibly, as if she wanted to replay the horror scene in her memory.

It's a pity that I only saw one glance just now in extreme panic.

"The ears are big?" Zhao Yunxiang thought for a few seconds, and he could completely rule out the terrifying behemoth that he saw in the small forest.

"That guy, it shouldn't be very big..."

Zhao Yunxiang said thoughtfully.

"How did you know?" Han Qianluo asked curiously.

"Foreign scientists have done experiments. When people are frightened, the objects they see will be enlarged because of fear. It is like the moment a domestic cat appears. Because the hair on the body is too lion-like, you suddenly caught that one. In an instant, you will think of yourself as a huge lion."

Zhao Yunxiang made an explanation.

"I remember, it seems to be a documentary filmed by the Discovery column." Lin Qingxuan frowned and thought carefully, and said, "I have forgotten what it is. My eyes are red and I can fly."

"Mothman!" Han Qianluo said, "When I was studying abroad, I heard a lot of mothman legends."

"Okay, as long as you know it!" Zhao Yunxiang said, "You are waiting here, and you have time to collect sea shells, all shells, including conch."

"What do you do to collect shells?" Lin Qingyu asked curiously.

"Just do it!"

Zhao Yunxiang didn't talk about the shells, but walked straight to the small wood on the side of the bamboo forest.

Before entering the small forest, Zhao Yunxiang specially put a bubble shield on his body. Although the feeling of being restrained was not good, the mosquitoes couldn't break it.

"Buzzing..."

Mosquitoes are spinning 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 humans excluding carbon dioxide from a mile away.

There are mostly bushes and weeds here. Girls like to go to the toilet here.

"I really can't think of those women, the grass is so high, the pps are still peeing here?" Zhao Yunxiang muttered as he walked, while looking for the beast Lin Qingyu said.

looked around, but didn't find any clues. Zhao Yunxiang thought it might be a rabbit. After all, rabbits have big ears.

Just when Old Zhao turned to leave, a pair of eyes stuck out in the bushes, and it stared at Zhao Yunxiang coldly.

It seems to be in reaction. Zhao Yunxiang felt that he was spied by something. His perception has been greatly improved. It shouldn't be the brain's thinking about what is behind him!

However, after looking back, nothing was found.

"Damn, did you meet a veteran?" Zhao Yunxiang whispered after scanning a circle, "It seems that I am really worried about something."

Now it seems that the making of the fence brooks no delay, and the fence must be completed in the shortest time!

It is estimated that the next few days will be spent in the shelter!

Zhao Yunxiang put it together, these tasks will take at least 3 days to complete.

"Did you find anything?" When Han Qianluo saw Zhao Yunxiang's return, the body was not bitten by mosquitoes.

You must know that Zhao Yunxiang’s skin is very afraid of mosquito bites. After being bitten by a mosquito, he will pick up a large bag, even for more than ten hours.

Today, I was not bitten by a mosquito, which is very strange!

Mainly, someone puts on a shield to go in, silky and ultra-thin, enjoy the **** experience!

"No~!" Zhao Yunxiang shook his head, "Maybe it's a rabbit. The rabbit, uh, has big ears."

"Well...I hope it's a rabbit..." Lin Qingyu said with a pouting mouth.

"How did you find the shells?" Zhao Yunxiang's job was to find shells. Now there are many clam shells and conch shells lying in the clearing of the shelter.

As for those huge 砗磲 shells, don’t add them, because that’s their bowl!

Wait for the kiln to be built, and the pottery can be used after firing!

However, the snake skin of the python must be tanned first!

As early as prehistoric times, our ancestors knew how to use animal skins to cover shame and keep warm. At that time, animal skins were not treated with special treatment and it was very uncomfortable to wear.

With the continuous attempts of the predecessors, finally there is a set of things to increase the flexibility of the leather, that is, soaking, deacidification and other processes.

And all they have is the snake skin of a python, without too much fur, now it is just that the subcutaneous tissue attached to the snake skin is not easy to clean.

Therefore, caustic soda such as 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, which is lime!

The chalk and gypsum we touched are made of lime, and they are made of calcium hydroxide and hydrated lime.

The source of lime, part of it comes from special stones, and some are obtained from shells.

Yes, the powder after crushing these shells is calcium oxide!

"Do you want to make lime from shells?" Lin Qingyu saw Zhao Yunxiang tear the snake skin from the tree and soak it in the water on the beach.

There are fewer bacteria in the sea water, and the salt of the sea water contains alkali, which is corrosive to a certain extent, which can improve the flexibility of snake skin.

If you add lime powder for tanning, I believe it should be able to make the ideal look.

Tanned leather is just a try...

No, it's tossing!

People don’t toss them in vain. Although Zhao is 23 years old this year, he still has a tossing heart!

"Okay, let's start now, crush the shells!"

Zhao Yunxiang came to the shade with a bunch of shells and hit the shells on the anvil with a hammer.

The hammer is naturally the one made of gears, and the anvil is the shell of the gearbox removed from the yacht. This shell is thick and flat, making it very convenient to make an anvil!

The shells are crushed, the thickness of these things is different, and they can be separated by blowing air. .

Just put the shell powder on the leaves, and then slowly sprinkle it down against the sea breeze, the ones that fall straight down are the larger particles, and the ones that are driven by the wind to float away are the tiny ones.

After dozens of minutes, many fine particles were sorted out. As for those with larger particles, continue hammering until they become powder.

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