N-A-A Chapter 216
Chapter 216
A few girls went to collect wood to make charcoal, while Lu Zhe continued to make pottery.
A few partners kept busy until nightfall, making two more batches of bricks and a large amount of charcoal.
It was late, the bricks had not yet dried, and it was not yet time to fire, so they needed to be dried overnight before firing.
Let's get here today.
By this time, the water in the cistern was already full.
Compared to the sea, the water flowing down the mountain is four or five degrees lower.
Although it is not cool, it can still relieve the heat a little.
Several gray-faced girls couldn't refuse the temptation of this pool, and ran to the pool to take a shower.
Looking back, Haiyan and Yongqiang were listlessly hot and hot.
Lu Zhe poured water from his body, and the two cows made a happy "moo" sound and leaned on Lu Zhe, competing for showers.
Lu Zhe had to give them a few more pots before he stopped.
At this time, Lu Zhe found that the flowers on the cow dung pile had been wilted.
What's the situation?
Pull out one and see, the roots are already a little rotten.
How many more to pluck, all the same problem?
Lu Zhe was a little surprised.
Isn't cow dung and flowers a perfect match?
Why did you burn out the roots?
Is it because there is no manure?
Or do they belong to different worlds after all, and can never enter each other's hearts?
Superficial ....
Lu Zhe looked at the pile of cow dung and thought a little more.
But now the most confusing question is not this.
Think of the previous bucket of instant noodles ruining the teacher's meat, and now a pile of cow dung ruined the girls' wildflowers.
If it goes on like this, the name of a hot hand destroying the flower man is just around the corner.
Let's plant it in a different place!
Because the sun was too hot during the day, Lu Zhe was ready to plant the flowers behind the cow dung pile.
Surrounded by stone mud walls and fences, it does not withstand direct sunlight throughout the day.
Lu Zhe took a shovel and began to dig a small pit, ready to plant the flowers in.
Then, he saw something unusual.
The bare stone is covered with a thin layer of salt frost.
Legendary nitrate?
Lu Zhe knew this thing, but it was the first time he saw it.
I'm a little curious.
Ammonia in urine is converted to nitrate at specific times, which attaches to stones.
In ancient times, the common people could not afford to eat salt, so they made nitrosalt from the dry toilet to eat, and this is what they ate!
It's a little disgusting, but there's no way.
The physical functions of people who lack salt in the body will be greatly reduced, and they cannot eat sodium chloride, so they have to replace it with sodium nitrate.
In addition, mononitrodisulfide charcoal can also be made into gunpowder.
It's also good to make some firecrackers to fry the monkeys.
However, if it can't be killed at once, the monkey will be bloody and wailing in pain, thinking of this picture, Lu Zhe is a little unbearable.
So to do it, you have to do something more powerful.
Directly blowing up the most humane.
In addition to replacing edible salt and making gunpowder, nitrogen has a third role!
Cooling!
Most nitrates absorb heat in the process of dissolving water, and there were even special saltpeter ice laborers in the Tang Dynasty.
Of course, they use nitrogen mined in the mountains.
How effective is this nitrogen cooling?
Give it a try first!
Lu Zhe threw the flowers aside, took a yogurt box, and then began to carefully collect nitrosalt.
After a while, a small box was collected.
Give it a try.
Lu Zhe took a large canned bottle, filled half a bottle of water, and then poured some of the nitrate into it and slowly stirred it with bamboo strips.
Lu Zhe obviously felt that the water temperature was decreasing, and after a while, a layer of water vapor was attached to the outer wall of the glass bottle, and the water inside continued to drop.
It really works!
Put the bottle on my heart, and I feel refreshed all over my body.
He quickly took a small bottle of water and soaked it in the can bottle.
After a while, a few girls finished showering and came out surrounded by broadleaves.
"Lu Zhe, what are you doing?"
"Good stuff!"
Listening to Lu Zhe say good things, several girls came over to see, Jiang Yao was curious: "What is this!"
Lu Zhe shook the canned bottle: "Do you touch it?" Very cold"
Then, Jiang Yao put his hand on Lu Zhe's chest.
"Wow, it's really cold!" Jiang Yao was shocked: "Lu Zhe, what is your situation!"
Lu Zhe was full of black lines: "I just put the canned bottle on my chest for a while, so it will be cold!" Shallow
said: "I touch!"
Guo'er said, "I want it too!" Ning
Shu smiled badly: "Haha, cold little beanie!"
"Take your hands away from me!"
Lu Zhe protested, "Several big sisters! I let you touch the canned bottle, not me!
Still Shen Bing was more rational and restrained, touched the can bottle with his hand, and couldn't help but be surprised: "It's so cold, Lu Zhe, how did you do it?!"
"Dissolving nitrate salts in water will absorb heat, and the water will be cold." Then, he took out the bottle of water inside: "Icy, everyone experience it!" "
A small bottle of 350ml of water is only enough for one sip per person, but it is enough to bring hope and comfort to everyone's heart.
"Where did you get the salt?"
"On the stones of the earthen wall behind the pile of cow dung."
"Huh? So we drink cow dung water?
"Of course not. It's just the sodium nitrate precipitated inside, and the water in the bottle is clean.
Shen Bing said: "Last time Lu Zhe and Xiao Ning Guoer went to the rock wall. If you don't come back on time, we might have to eat salt like this."
Jiang Yao complained: "I have eaten urine salt for several days." Shallow
said softly: "It's still acceptable to think that it's all our own."
Jiang Yao was helpless: "Shallow, you are not right!" "
What..."
Ning Shu sighed: "It's a pity that there is only such a little, and it will be gone when it is used up."
"That's not right! This one can be used all the time! "
Always used?"
Lu Zhe nodded: "Because sodium nitrate does not react with water, it is only dissolved in water, we can regain sodium nitrate crystals by boiling, and then put into water will still absorb heat and cool down."
Tang Xiaoguo said happily: "Then get a little bit, isn't it infinitely useful?" "
There will be some loss in the process of cooking, but if you do more, you can still use it all the time."
"What do I have to do?"
Shen Bing thought for a while: "Either find the nitrogen ore, or use a large cauldron to boil the manure, or, you can only collect it from the dung pile little by little." "
The cauldron to stay up Ollie?" Several girls widened their eyes:
"Not a joke, right?"
"Will such a hentai's idea be true?"
"Sister Bing, you are getting more and more Lu Zhe now!"
"Do we have a cauldron?"
"Just because there is no cauldron, so if you want to boil the heart given by Ollie, I'm afraid you will be disappointed!"
Several girls said in unison: "We're not disappointed at all, okay!"
Ning Shu asked, "Speaking of Lu Zhe, how likely is it to find nitrogen ore on this island?"
Lu Zhe was helpless: "How do I know, at least I explored so many places, and I didn't see a single one."
Jiang Yao nodded: "That is, can it only be collected little by little from the dung pile?" "