Hand rubbing nuclear fusion live in the wilderness

Chapter 114 Papermaking
Even if the raw material is bark, which is extremely suitable for papermaking, the cooking time is very long.

For a full twelve hours, the fire could not be stopped, people could not leave, and water had to be continuously added to the iron pot.

The long cooking process took away batch after batch of spectators, and it was not until the steamed bark came out of the pot that the popularity began to gradually pick up.

The boiled bark is washed again in river water and placed in a wooden ladle under a newly made pestle.

The vertical water wheel is running, driving the pestle to beat the bark in the wooden scoop into fine fibers.

Hydraulic mechanical forging is much less labor-intensive than manual forging. After a while, the bark inside the wooden scoop is directly beaten into flocculent fibers.

The bark that has been beaten into a flocculent paste is put into the pulp washing tank, and clear water is added to wash out the pulp.

Won picked up the bamboo curtains that had been made two days ago and put them aside to dry, and put them into the matching tool 'wooden mold'.

It took him a whole day to make a bamboo curtain.

The strips used to make bamboo curtains are smaller than toothpicks, so soft that they can be bent almost at will.

In addition to bamboo curtains, he also accidentally discovered lacquered wood in the forest, harvested some natural wood lacquer, and made it into earth lacquer.

Brushing the earth paint on the bamboo curtain can effectively prevent the picked up pulp from sticking to the bamboo curtain.

Pulling the camera and aiming at the pulp washing tank, the wooden model enters the pulp tank with a bamboo curtain, and Han Yuan explains while making paper.

"Among all the processes of ancient papermaking, papermaking is the most difficult part."

"If the pulp is thick, the paper produced will be thick, but if the pulp is thin, the paper will be easily broken and cannot be torn off."

"There is no shortcut in the process of papermaking. Only by accumulating experience can we make paper of uniform thickness at one time."

While speaking, Han Yuan carefully controlled the wooden mold into the slurry, and the water with the pulp slowly entered the wooden mold and covered the bamboo curtain.

Shake back and forth twice, after the bamboo curtain is completely covered with a layer of pulp, drain the water, and the bamboo curtain can be removed from the wooden mold.

Glue the bamboo curtain with paper pulp, turn it upside down, remove the paper that has been made, and place it on a wooden board to dry.

Bamboo curtain paper making, one piece after another, from the unskilled at the beginning, to the last three or four seconds to copy a piece of paper, the proficiency of the Korean won surprised the audience in the live broadcast room.

[Qingming Papermaking, reasonable! 】

[This paper, won't it be spicy to wipe your butt? 】

[I am very good at this. My undergraduate major is papermaking. 】

[The anchor travels back to ancient times and will definitely benefit the society. He can make paper, salt, iron, and most importantly, copper (dog head)]

[The anchor's paper-making skills must have been practiced, a highly proficient yuppie, my grandfather has been making paper for almost 30 years, that's it, no, it's even more than a lot. 】

['Time and Dog' gave away grilled fish*99, not to mention other things, I am convinced of the anchor's hands-on ability. 】

['Lying under the quilt and shouting to lose weight' sent out the plane *1, with all the bells and whistles. 】

Soon, the slurry in the slurry tank was almost made, and the Korean won also stopped.

On the wooden board next to it, the newly made paper was piled up to a thickness of more than ten centimeters.

When the water in the paper pile was drained, he found another piece of wood, pressed it on top of the paper pile, and then put a few big stones to dry out the water inside.

After finishing this, Han Yuan washed his hands and said with a smile: "This is the whole process of making paper, have you learned it yet?"

On the virtual screen, barrages suddenly flooded in.

[Learning is useless, study is useless. 】

[Brain: I learned it, Hands: Learning is useless! 】

【If the paper is stacked like this, won't it stick together and turn into bricks?How to disassemble it then? 】

[I did this in elementary school. The art teacher told me to make paper, and asked everyone to bring toilet paper as raw materials, melt it in water, then take it out, flatten it and dry it, and it will be a hard paper. 】

【Your teacher upstairs is really talented, this method is good, why did I think of it, try it. 】

[Strange papermaking knowledge has been added again! 】

The paper has been made, and all that remains is to let it dry.

There was still time in the afternoon, and Won thought about it, and chose to define the standard weight unit.

The reason why I want to define the standard weight is because it needs to be used to smelt the alloy later.

After this idea was uttered, the nature of the audience in the live broadcast room came. Some asked how to define it, some offered ideas, and some ridiculed.

Defining a standard unit of weight is quite different from defining a standard length.

This time, even the weight information on the personal information panel is useless.

Customizing the standard weight unit cannot be the same as the length. Weighing out the weight and splitting it in half to customize a kilogram is obviously not feasible.

But there are ways.

Seeing the doubts on the barrage, Han Yuan smiled, found the one-meter ruler made before, and said:
"To define a standard weight, that is, to define a kilogram or a gram, the first thing to know is the principle."

"The original origin of the unit of weight is 'Planck's constant.'"

"That is to convert the mechanical force required to move an object with a mass of one kilogram into the electromagnetic force that can be expressed by Planck's constant, and then calculate the mass through the mass-energy conversion formula."

"This is the standard weight of one kilogram."

"But just knowing this can't produce a standard one kilogram, so I need to use another thing."

"That's the one-meter ruler in my hand!"

"In the beginning, when humans defined a kilogram, they used the unit of length to define it. One cubic decimeter of pure water has a standard mass of one kilogram at 4°C."

"That's why I made the definition of the standard length unit two days ago."

"With a standard length of one meter, I can divide a decimeter and produce a standard kilogram."

After Han Yuan finished speaking, the audience in the live broadcast room was dumbfounded again.

In fact, most people don't care much about these things.

Even if you have been to college, you will not care about how the basic units of kilograms and meters were first formulated.

【Senseless!I didn't understand at all. 】

[I have already returned the knowledge I learned in college to the teacher. 】

[Why does the anchor know so much?You don’t know anything, why don’t you think about it? 】

["Time (s), length (m), mass (kg), current (A), heat (K), amount of substance (mol), light intensity (cd), seven basic physical quantities defined by the International Bureau of Weights and Measures. 】

[The definition of a second: the time obtained by dividing the time of every 1 minute by 59 is one second (=ω=)]

[What the anchor said is very old. As early as a few years ago, the kilogram was redefined. 】

(End of this chapter)