"Sister Bing, what's wrong?"

"Heavy on the mind!"

Jiang Yao looked at Shen Bing's bamboo cup: "I didn't drink a few sips of lemonade."

Ning Shu thought for a while: "Maybe Sister Bing thought of her relatives and friends again!"

Tang Xiaoguo sighed sadly: "I also miss my parents a little." "

When it comes to family, a few girls are a little sentimental.

Lu Zhe also remembered his parents.

He knows that it was not his biological parents who raised him, but his adoptive parents!

But feelings are no worse than biological ones!

The adoptive father was his biological father's comrade-in-arms and was said to have had a lifelong friendship with his father.

When he was five years old, an accident happened to his father.

The funeral was held very grandly, and many leaders with big stars on their shoulders came to attend!

A few days later, his mother handed him over to his adoptive parents and said something to him for no reason: "Xiaozhe, my mother went to find my father..."

Many people say that his mother is dead too.

Lu Zhe began to be cared for by his adoptive mother, and ten years later, his adoptive father moved to the local government and became a middle-level cadre in the NDRC.

His family's life is still relatively superior, and his adoptive parents treat him as their own and cultivate him carefully.

He also studied hard, hoping to repay this kindness one day.

But who expected such a thing to happen at a university event!?

But it's fine!

He also has a younger brother, who is the biological child of his adoptive parents.

It is also because of this younger brother that he hopes that his "death" will not cause too much psychological trauma to his adoptive parents.

Sometimes, Lu Zhe thinks that when he is away, his younger brother can understand something, become a talent early, and do his filial piety for himself.

Thinking of their families, everyone is sad for a while, but things always have to look forward!

"Lu Zhe, what are your plans next?" Ning Shu wiped his tears and asked.

Lu Zhe also came back to his senses, pondered for a moment, and began to analyze the current situation.

"Today we have access to two new sources of fresh water, but both with certain limitations.

It takes a certain amount of time to drain the bottle with fresh water from the stone crevice, because the distance is so long that we can only get back one bottle of water on one trip.

And groundwater needs to be filtered, boiled to drink, not only requires a person to operate repeatedly, but also the filtration speed is a little slow.

Lin asked shallowly, "Is there a way to solve it?"

"Let's start with groundwater, I thought of a method of automatic filtration!"

"How?"

"Like this!"

Saying that, Lu Zhe stood up, took out a torn dress from the package, and then cut it into 1 cm long strips of cloth with a steak dinner knife!

Braid three more strips of cloth into a rope that is not compact!

Jiang Yao picked up a hemp rope: "Can't you use it?"

Lu Zhe shook his head: "If used for filtration, the water absorption of cloth rope is better than that of hemp rope!" Then

he tied a few dead buckles in the middle of this rope!

Then fill a 2L bottle with sewage and put a small empty bottle at a slightly lower level.

Place one end of the cloth rope in the sewage and the other end in an empty bottle.

"The cloth absorbs water, but it is not easy to suck up dirt, and each dead knot is equivalent to a filter point, and when the entire cloth rope is soaked, clean water will drip into the empty bottle below."

Lin shallow exclaimed: "What a clever approach!"

Ning Shu snapped his fingers: "So that we can make ten or eight such diversion filters, and there will be a large amount of filtered water early tomorrow morning, and then boil it together to drink!"

Lu Zhe nodded: "That's right!

"Sisters, what are you waiting for, hurry up and get done!"

Lu Zhe reminded again: "It doesn't have to be one-to-one, a large bottle can drain 3-5 vials, so the utilization efficiency is higher!"

"Understood!"

The device was simple to make, and in less than 15 minutes, four girls made more than 20 filter ropes!

"In this way, no one needs to watch, and tomorrow we will have fresh water that can be burned directly!"

Lu Zhe thought for a while: "The stone seam water side can also be improved!"

"How to improve?"

"Just get some bigger containers!"

"Bigger containers? But the largest bottles are used as automatic filtration devices!

Lu Zhe shook his head: "That's not big enough.

Tang Xiaoguo said, "How many more times?"

"No, the distance is not very close, this road will also consume too much physical energy, this is not very cost-effective."

Lin shallow said: "Or, two people guarding there?"

"Still no, since it is a water source, it is likely to be patronized by other animals, and it is very troublesome to meet a bear or a wild boar if there are few people!"

Ning Shu thought for a while: "By the way, we use that helmet to catch water?"

"The helmet is indeed bigger, but it is contaminated with too much resin, and it is not large enough!"

Ning Shu asked, "Then what to use?"

Lu Zhe pinched the soil next to him, which was the soil dug up by the girls digging groundwater.

"Use this!"

"Dirt?"

Lu Zhe nodded: "This soil is below the surface layer and above the coral layer. Filled with volcanic ash, kaolin and quartz, it is highly viscous and malleable.

Lin said shallowly: "It shouldn't be pottery!"

"That's right!"

Lu Zhe smiled gently: "We can use this soil to make some pottery!" For example, larger clay pots can not only receive a lot of water at once, but also improve the quality of life! "

But pottery seeps water, right?"

"We can glaze it!"

Jiang Yao thought for a while: "What can be used to make glaze?"

Lu Zhe picked up the steel helmet and knocked: "Just use this?"

Tang Xiaoguo blinked: "You want to burn the steel helmet and glaze it?"

"Of course not, but the resin on it!" Lu Zhe explained:

"Of course, it is not a real glaze, but a unique dama resin in Southeast Asia, the softening point is about 120 degrees, it can be cleaned by fire and coated on the surface of the pottery to be waterproof, if it is not enough, you can also go to the forest to do it, here it is!"

"Isn't this thing poisonous?"

"Of course! It can be made as a food additive, and it can also be made into chewing gum. After scalding and applied to the surface of the pottery, it will block the tight holes of the pottery, but its softening point is very low, and it can hold water, but it cannot be used as a pot.

Ning Shu nodded: "I really know a lot, these are also a hundred thousand why are they taught?"

"A must!"

"So do you start doing it now?"

Lu Zhe looked at the watch: "The steps of pottery making are a little cumbersome, but today it won't work!" But everyone can get up early tomorrow, and from tomorrow, we will officially enter the pottery age! After

discussing, several people divided the bear's paw, this thing is rich in collagen, and the taste is not so strong after removing the skin, in comparison, it is really the best place to eat on the bear.

After eating dinner, saying goodnight, several partners went to hammocks and gradually fell asleep.

Shen Bing actually never fell asleep.

She lay on her side, looking at Lu Zhe who was asleep on the adjacent hammock, full of thoughts!

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