Honghuang, I am engaged in science and technology in the Wuzu

Inside the Hongshi Tribal Industrial Zone, Fang Hao was busy with several of the tribe’s smartest young people, and he wanted to make paper.

Papermaking, printing, the compass, and gunpowder are known to be the four major inventions that can change the world, and these technologies are indispensable if they are to give birth to advanced civilizations.

Modern papermaking technology uses chemicals to soak wood, obtain the fibers in the wood, and then process the fibers into paper by machines.

The flood world is poor and white, and there is not even the simplest chemical, so naturally it cannot make paper in this way, and can only use the soil method to make paper.

The process flow of indigenous papermaking is more complex and takes a long time.

First, cut the young bamboo with fresh leaves in the bamboo forest, shave the branches with a knife, cut them, form bamboo strips about 1 meter 5 long and tie them into bundles, and put the bamboo strips and quicklime into the pond together in a ratio of 10:1.

Staining for about two months, put lime water, remove slag, add water to clean, use a hoe to repeatedly stir and clean the cleaned bamboo strips on the fermentation lawn, and then use straw mats or other items to cover the fermentation, two or three months after the bamboo strips are fully rotted, you can produce paper.

Before making paper, the fermented wood is placed on the milling tray, spread evenly and rotated on the milling plate with a stone mill to repeatedly crush the wood back and forth until the wood is crushed into powder.

The crushed wood is poured into the scooping pond, stirred repeatedly with an arch plate, and the water is vigorously beaten with a bamboo rod to break the pellet wood, and the coarse material is fished out, and the paper can be scooped.

Before scooping the paper, add the water ski prepared in advance, and the water ski is brewed with kiwi vine, fir root, etc., and you can use the curtain bed to scoop it.

Water skiing should be scooped while adding, the curtain bed is composed of a curtain and a bed frame, the curtain is placed on the bed frame, and once or twice in the trough, there is pulp on the curtain, raise the curtain bed, and flip the curtain on the wooden board prepared in advance.

After the successful scooping, the roller was used to add the code to press the moisture, and then separated layer by layer to uncover, through baking, drying and other forms, the paper was formed.

Technology is a roadblock everywhere.

Because lime is needed, Fang Hao also has to burn lime, fortunately, limestone is everywhere, and there is no shortage of fuel for firing lime, and it is not too difficult to build a lime kiln.

The so-called burnt lime is to use high temperature to fire calcium carbonate into calcium oxide, the sintering temperature is relatively high, in order to decompose limestone, it needs enough high temperature.

For ordinary limestone with medium firmness containing a small amount of drilling impurities, the normal combustion temperature is L000-1200C, and for marble-type hard limestone, it is 1200-1300C.

If calcium trioxide encounters water, it produces a lot of heat and forms calcium hydroxide, which is an alkaline chemical.

Under the leadership of Fang Hao, He and the others spent most of the month to finally make lime, but at this time it was quicklime, and it was necessary to wait until the lime oxidized into calcium hydroxide before it could be used.

“This wood is good, similar to bamboo, so I use this.” Fang Hao looked at a plant and pondered.

Because there is no bamboo, Fang Hao led everyone to collect a lot of wood samples, there is no bamboo around the tribe, naturally you can only choose a wood with more fiber.

The tribe was in the mountains, full of unknown plants, and after several days of comparative analysis, Fang Hao finally chose a shrub wood as raw material.

“Putting lime and wood together corrode the organic components of the wood, and if it’s dry hydrated lime powder, the lime doesn’t corrode the wood. But if the humid environment, the wood will rot, because of the presence of calcium hydroxide, calcium hydroxide is a binary strong alkali, with alkali generality, on the skin, fabric has a corrosive effect, we are using the role of calcium hydroxide to corrode the organic components of the wood, and finally get more difficult to decompose the fiber. Fang Hao explained to several people around him.

“What is an alkali?” River asked.

“Alkali refers to a class of compounds in which the anions ionized in an aqueous solution are all hydroxide ions, and alkalis are substances that can accept hydrogen ions,……”

Although the river is smart, but also has a confused head, what?

Seeing their confused looks, Fang Hao smiled, as if he saw that when he listened to the university professor’s lecture on professional courses, he also had this expression at that time, and then he understood the professional problems through his own self-study.

……

After lime, water skiing, curtains, presses, all the preparations were done, half a month had passed.

After another half a month, the first piece of paper in the flood desert was finally born, but it was all grass paper used to wipe the butt, obviously the fiber was not delicate enough.

After another half a month, with the efforts of everyone, they finally made paper that could write on it.

Fang Hao took out his homemade pen and ink and wrote the words “flood” on the paper, his heart was full of irrepressible joy, calculating the time, it actually took almost three earth years to make paper from scratch to make paper.

With paper, then Tribal Liu can record all kinds of data and knowledge, he will write all the important materials in books, and then build a library for everyone to study.

Perhaps soon, when the second group of talents matures, this civilization system can operate on its own, and he can do other things.

Managing a tribe is really tiring, Fang Hao complained in his heart.

“He, next you will make every effort to produce these papers, I will be of great use, and at the same time pay attention to improving the formula and strive to make better paper.” Fang Hao said to the few people next to him.

“We know that I’ve been thinking about how to make paper on a large scale lately, and I already have some ideas.” and replied.

“Is it? That’s great! Fang Hao was very gratified, after such a long time, they finally had a trace of the quality of an engineer.

The paper in his hand was invented by everyone together, and during this period, everyone did not know how many experiments were done, and finally solved the technical problems of papermaking, and it can be regarded as a basic understanding of modern chemistry.

It’s not that Fang Hao doesn’t want to teach them, but how to teach them on paper? Do you write on the ground? This is very unrealistic.

People in modern society need to go through seven years of accumulation of primary school and kindergarten, and then they can have simple scientific and technological knowledge in junior high school, then in-depth study in high school, and finally further professional learning in universities, if they want to grow into qualified researchers, at least complete graduate studies, a total of 19 years.

These ancients did not have such good learning conditions, naturally it was difficult to learn these scientific and technological knowledge, even the smartest people in the tribe could not understand the essence of modern science in a short time.

(In order to better calculate the time, the timing of the book in the future will use the year on the earth, and the day of the flood is half a month of the earth, and the time is not easy to calculate).