After Wu opened his mouth, most of the people around him expressed their agreement with what Wu said, especially the second brother who had just swung the hammer for a while, who agreed with Wu's words the most.
Now in the whole tribe, he is the strongest person in terms of strength. Just now, he personally swung the hammer and smashed it hard for a long time. His arms were numb from the shock, but he didn't squeeze out a few drops of oil. It can be seen that there is really no oil in it.
Moreover, so much oil has been squeezed out of it, enough to fill an entire basin. All the oil must have been squeezed dry.
Han Cheng glanced around and saw that most people agreed with Wu's opinion. From the expressions of those who did not groan, it could be seen that they very much agreed with Wu's opinion. Only Yuan did not say a word, as if he wanted to say something but hesitated.
"Yuan, do you think there is still oil in here?"
When Han Cheng saw Yuan's expression, he suddenly asked.
During this period of time, Han Cheng has taught Yuan a lot of mathematical knowledge, and he has been able to master simple addition, subtraction, multiplication and division. Looking at Yuan's expression at this time, it seems that he has made some discoveries.
“There should still be oil in it.”
After hearing Han Cheng call on her to ask a question, Yuan hesitated for a moment before speaking out loud.
Han Cheng ignored Wu and the others' disbelief and surprise, and smiled and asked Yuan Dao again: "How did you determine that there was still oil in it?"
I asked this with a hint of anticipation in my heart.
"that is..."
Yuan paused here, opened his mouth several times, but still couldn't figure out how to express what he wanted to say. After scratching his head for a while, he suddenly squatted on the ground, found a wooden stick, and began to write and draw on the ground.
This scene made Wu, Second Senior Brother and the others puzzled. Didn't the Son of God ask how he knew the oil was not squeezed clean? Why was he squatting on the ground and writing now?
Can you write?
When Han Cheng saw this scene, the smile on his face became even more intense.
He leaned over to watch Yuan writing and drawing on the ground with a branch.
The first thing that Yuan wrote on the ground was the multiplication table.
I can recite the multiplication table in the order taught by Han Cheng, but I am not yet proficient in it.
So when doing calculations, Yuan needs to write out the multiplication table first, and then perform multiplication and division operations according to the multiplication table.
After writing out the multiplication table, she began to use a branch to draw division symbols on the ground. Then she divided thirty-five by five, and compared it with the multiplication table to get the result of seven.
Then I divided three hundred and fifty by five, and after some calculations, I got seventy.
The result of this calculation is correct, but it cannot solve the current problem.
Han Cheng saw the problem at a glance, but did not say anything. Instead, he stood there and continued to calculate the circle like a first or second grade student.
After some calculations, Yuan wrote out the last subtraction equation. With the help of counting on his fingers, he did some more calculations and subtracted thirty-five from seventy, getting thirty-five.
"Son of God, there is still so much oil that has not been squeezed out."
Yuan pointed at the bottles of tung oil and spoke.
Before making the calculations, Yuan had a vague feeling that the oil inside had not been fully squeezed out. Later, after hearing the Son of God's question, this idea became more certain.
However, she was not proficient in addition, subtraction, multiplication and division, and could not immediately explain the problem, so she squatted on the ground and calculated for a long time.
Wu, Second Senior Brother and the others looked in the direction of Yuan's finger, towards the two oil jars, and each of them had an expression of disbelief on their face.
They all saw it very clearly. This time, a large basin of oil was squeezed out, as much as 35 kilograms, all of which were put into these two jars.
Moreover, the second brother who had the greatest strength just now picked up the bronze hammer and smashed it hard, but in the end not a few drops of oil came out. Under such circumstances, Yuan actually said that there were still 35% of oil in this simple oil press that had not been squeezed out. Of course, they didn't believe it.
How is this possible? !
"Son of God, is there really so much oil that has not been squeezed out?"
Wu scratched his sparse hair and spoke with a puzzled look.
He didn't believe it at first, but when he heard Yuan say that there was still oil in it, Wu became a little unsure.
After living together for nearly a year, as Wu got to know Yuan better and better, he realized that Yuan was a very smart woman.
Although what she said at this time did not sound true at all, Wu still had doubts in his heart.
Especially just now, when Yuan was squatting there, holding a branch and writing, calculating, and counting his fingers on the ground, muttering to himself, it looked very realistic and quite intimidating.
When Wu asked this, everyone else, including Yuan who was feeling a little nervous, turned their eyes to Han Cheng.
Han Cheng smiled and shook his head, "There's not that much oil."
As soon as these words came out, Wu and Second Senior Brother immediately breathed a sigh of relief, especially Second Senior Brother, who smiled happily and said, his arms were numb from the shock just now, and he had almost used up all his strength, so how could there be so much oil that had not been squeezed out under such circumstances?
There was a look of confusion and doubt on her round face. According to the calculation method given to her by Professor Shen Zi, there were still 35 kilograms of oil that had not been squeezed out. Why did Shen Zi say there was none now?
"Not as much as the thirty-five kilograms Yuan said, but it's not a small amount either."
Before the second brother and the others could be happy for long, Han Cheng once attacked them again. After saying this, he smiled and said to Yuan: "You try to calculate it again."
Yuan, who was originally full of confusion and doubts, didn't say any more nonsense after hearing what Han Cheng said. She just squatted on the ground and began to carefully check the calculation process she had just written on the ground.
During the careful inspection process, Yuan would occasionally use the branch in his hand to write and draw, his eyes full of thoughtfulness.
After maintaining this state for a long time, Yuan's eyes suddenly lit up. After pausing for a moment, he took the branch as a pen and started calculating in another place.
Different from the slow pace of the previous check, Yuan's speed this time was much faster, and the whole calculation process seemed much smoother.
"Son of God, it's fifteen pounds, not thirty-five pounds!"
After calculating like this for a while, Yuan, who was squatting on the ground, suddenly raised his face and looked at Han Cheng with surprise and said.
Han Cheng looked at her approvingly, slightly vigorously at her, and said with a smile: "Yes, that's fifteen kilograms!"
While saying these words, Han Cheng also gave Yuan a thumbs up.
Yuan, the priestess of the former semi-agricultural tribe, is indeed smarter than ordinary people. Mathematics has always been taught in the tribe. Most people in the tribe are good at addition and subtraction, but they are completely at a loss when it comes to multiplication and division.
Among the remaining people who can perform multiplication and division, a large portion of them can only calculate numbers on paper, but cannot apply them in daily life to solve practical problems.
But compared with most people in the tribe, Yuan, a female priestess of a former semi-agricultural tribe, has not been exposed to mathematics for as long as she should, only two months, and she has been able to apply it to solve practical problems.
Today's series of calculations, in addition to addition, subtraction, multiplication and division, actually involve some proportion issues.
Although Yuan didn't quite understand this, he still calculated the correct result independently.
Although I calculated it wrong the first time, it is already very rare.
After all, she had only been exposed to mathematics for a short time, and the practical applications were much more difficult than simply calculating numbers.
Sure enough, mathematics is a subject suitable for smart people, and talent is often very important.
When it comes to physical work, most people in the tribe are good at it and are not afraid of it at all, but once it comes to various academic matters, many people become weak in the arms and legs.
Chinese characters are relatively okay. After all, attracted by the popular works of the Qingque tribe such as "The Tadpole Looking for Its Mother" and "The Monkey Catches the Moon", people are still very interested in learning these.
But mathematics, which is more abstract and requires remembering many rules, is really a headache. Even Shi Tou, the best student in the tribe, scratches his head when it comes to mathematics. He can only do the simple four arithmetic operations so far, and he cannot understand or learn more advanced ones.
In the entire tribe, the level of stone is first-class.
Now that he has discovered Yuan, a good talent, Han Cheng naturally cannot let him go and needs to encourage him well.
This will help Yuan immerse himself better in the fascinating world of mathematics and go further and further, laying the foundation for the future development of the tribe.
Han Cheng, who came from later generations, naturally knew the importance of mathematics. Especially after society developed to a certain level, Han Cheng understood even more clearly the role that higher-level mathematics could play in the development of society.
Advanced and complex mathematical knowledge is of course not useful when buying groceries, but there are many other things in this world besides buying groceries.
When Han Cheng first learned mathematics, he was so exhausted that his hair almost fell out. Later, after he started working, he rarely used it, but he would not deny the significance of learning mathematics because of this.
Now that Han Cheng has come to this world, he will naturally not abandon it.
The person who was hit on the head by an apple said that it was easier to pick apples by standing on the shoulders of giants.
Compared with the current tribe, Han Cheng is undoubtedly a giant. If he can leave all these things behind, then his future generations, based on the foundation he has laid, will be able to stand at a destination that others may never reach in their entire lives as soon as they are born.
Taking this as a starting point, we can always go further and make the tribe better.
Of course, this all happened many years later.
However, putting aside these future matters, the Qingque tribe also needs mathematical knowledge at this time.
For example, statistics are kept on the harvested grains and the furs obtained.
Calculated by the number of people, how much food does the Qingque tribe need in a year? If a road is built by different numbers of people, how long will it take to harvest the harvest?
How many days will it take to harvest the crops in the field if everyone works together...
This series of things requires mathematical calculations to have a clear understanding.
Although there will be errors, they are much more accurate than estimates.
Not to mention anything else, if Han Cheng hadn't calculated that the oil yield was too different this time, the oil contained in the oil residue would have been wasted.
After hearing Yuan say fifteen kilograms and getting Han Cheng's personal confirmation, the second brother and others were suddenly a little confused.
Although fifteen kilograms is not as much as the thirty-five kilograms Yuan said before, it is still not a small amount.
You know, this time we only squeezed out 35 kilograms of oil, which filled two jars.
These fifteen kilograms of oil can basically fill a can!
“God…Son of God, is there really so much oil?”
The second senior brother looked at Han Cheng and asked with some stammering.
Han Cheng nodded and confirmed the matter once again.
Seeing this, the second senior brother, scratching his hair, picked up the bronze hammer and was about to smash the wooden stakes again, but was stopped by Han Cheng.
After all this consideration, Han Cheng has roughly figured out why the oil yield this time is so different from last time.
This time, the amount of tung oil fruit powder added was ten times that of the last time.
If so much tung oil fruit powder is piled together, its elasticity will increase and it will not be easy to smash through.
To sum it up in one sentence, you can't chew too much.
The second senior brother who was stopped by Han Cheng was scratching his hair there. Also scratching his hair were Wu, Yuan who had just calculated that there were still 15 kilograms of oil in it, and many other people.
It is recognized by everyone that Second Brother is the strongest among all the people in the tribe. Now that the Son of God has stopped Second Brother and prevented him from swinging the hammer, how can he get out the remaining oil?
Of course, there was a reason why Han Cheng stopped his second senior brother. The second senior brother's strength was no longer enough to squeeze out the remaining oil. If he could have squeezed it out, he would have succeeded before.
Even if he took the hammer and smashed it again, it would be a waste of effort.
"Son of God, what should we do now?"
Everyone looked at Han Cheng with confusion in their eyes. Even the strongest Second Brother couldn't do anything with the remaining tung oil. They really had no idea what to do.
"I have a way to squeeze them out!"
Human beings have limited abilities. They cannot swim faster than fish, run faster than horses, or fly in the sky like birds.
However, because humans have developed brains, they can create a variety of tools to solve the various problems they face.
With the help of intelligence and various tools, we can go up to the sky, into the ground, and dive into the deep sea...
When the human body's own strength reaches its limit, tools are needed.
The tool Han Cheng made this time was very simple, just a hammer, similar to the one used to strike bells in temples.
However, the piece of wood used for striking the target is larger, longer, and heavier than the one used in ordinary temples, and the impact force is correspondingly greater.
“Boom!”
“Boom!”
Han Cheng pulled the rope tied to the ram with his hand, pulled the ram up and backwards, and then followed the backward force of the ram and pushed it back with all his strength.
The hammer contained enormous power. Under Han Cheng's control, it used its own weight and the inertia of swinging in the air, plus the force applied by Han Cheng, to hit the wooden stake hard.
A crowd of people gathered around to see what was happening.
Everyone chose to believe in this tool made by the Son of God, but this belief was mixed with some hesitation.
Because the second eldest brother, who was the strongest in the tribe, couldn't knock the stake down even after hitting it with a bronze hammer, now the Son of God, who was not known for his strength, said that he would use such a tool to knock the stake down and then squeeze out the oil.
Even though they all felt sincere conviction in the Son of God, under such circumstances, there was still some disbelief hidden in their conviction.
However, when the hammer made of rough wood hit the wooden stake under Han Cheng's control, the onlookers around widened their eyes. The disbelief in their hearts was all shattered by this impact and transformed into surprise and disbelief!
With this collision, the wooden stake that the second eldest brother, the strongest man in the tribe, couldn't even hammer down with a bronze hammer was actually smashed in a certain distance at a speed visible to the naked eye.
"Oil! Oil! It's oiling again!"
While many people were still in shock from this scene, someone pointed at the bottom of the simple oil press and shouted excitedly.
Everyone went to see what was going on. They saw that the simple oil press, which had been deemed to have no oil before, began to drip oil after Han Cheng hit it with the hammer again and again. The drops soon turned into several thin lines...
It turns out that there really is so much oil contained in it. It turns out that hanging a piece of wood horizontally can really have such a great impact!
"Come on, crash with me!"
After Han Cheng pulled the ram and hit it for a while, he said to his second brother who was standing beside him.
At Han Cheng's signal, the second brother stood on the other side of the ram, and then he and Han Cheng worked together on the left and right to pull the ram back and lift it up, and then pushed it forward with force.
With the addition of the extremely powerful Second Brother, the advantages of the ram were brought into play more thoroughly.
With the repeated impact of the hammer, the wooden stake was hammered in little by little, and more and more tung oil was squeezed out from it.
"Son of God, this method is really good!"
Looking at the tung oil that weighed more than 17 kilograms, the second senior brother spoke excitedly.
Using this method, not only can the tung oil be squeezed cleanly, but it also saves a lot of effort.
Even though Second Brother was very strong, he didn't want to exert too much strength when he could save it, and make himself as tired as a lucky general who stuck out his tongue to dissipate heat...
The Qingque tribe was very happy because of the successful manufacturing of the oil press and Han Cheng's invention of such a labor-saving and efficient hammer.
Those lively and active minors always like to come here when they have nothing to do, and always want to come here to play with the ram when they have a chance.
Han Cheng was also very happy. On the one hand, it was because he and the people of the Qingque tribe had built an oil press from scratch, and the tribe now had one more machine. On the other hand, Yuan really showed his talent in mathematics as he had originally imagined.
This is the advantage of being smart. In many things that require thinking, progress is always fast.
After the success of this large-scale oil pressing, Han Cheng did not ask people to continue pressing oil. The oil pressed now is enough, and the remaining tung oil fruits can be pressed in winter. After all, at that time, people in the tribe will have less time.
After such a busy time, the autumn atmosphere became more intense and the grass around the tribe turned dark green. When we woke up in the morning, the cold dew stuck to the grass leaves, making everything look white.
When people walked by here, dewdrops rolled down from the swaying grass leaves, sticking to the soles of their feet, making their feet a little cold.
The mountains and forests in the distance also became colorful. Although it was not yet to the point where all the mountains and forests were dyed red, it was almost there.
Before I knew it, the late autumn of the tenth year of Qingque had arrived.
Inside the courtyard, Han Cheng, wearing leather gloves, dipped a pair of rattan armor directly into a ceramic basin filled with tung oil. After turning it back and forth several times, the entire rattan armor was covered with tung oil.
Holding the rattan armor in his hand, Han Cheng waited for a while above the pottery basin. When the oil stopped dripping, he hung the rattan armor on a shelf not far away.
There are already a dozen pairs of rattan armor soaked in tung oil hanging on this shelf. Under the late autumn sunshine, they are shining and look very beautiful.
"Boom boom, boom boom..."
Little Pea, who was carried by the panda Tuantuan and walked back and forth in the tribe, was holding a rattle in his hand, shaking it back and forth, grinning, and was as happy as a fool.
The rattle in Little Pea's hand also seemed to have a layer of light, which was much brighter than its previous dull color.
This is also due to the application of several layers of tung oil.
However, the rattle was not soaked in a basin of tung oil. Instead, it was rubbed with tung oil using the unsuccessful silk woven by Sister Bai Xue with silkworms. This way, it was less likely to leave any marks on it and it looked more beautiful.
“Knock knock knock…”
This is the sound of a cane tapping on the cobblestone road.
As the sound came closer, a witch appeared in sight with a cane in one hand and a handful of wild fruits in the other.
However, Wu's walking posture at this moment seemed very awkward. Every time he walked forward, his body would involuntarily lean towards the side where the crutch was, and the crutch was extended with a large amplitude and high frequency.
It doesn't look like he is walking, but rather like he is showing off his crutches.
In fact, Han Cheng had asked Bo and Wu to make this crutch a long time ago, but Wu felt that using a crutch would make him look old and would not highlight the strength of his body, so he just left it there and never used it.
However, ever since Han Cheng soaked the cane in mint juice for a few days, dried it, and then wiped it several times with a silk cloth dipped in tung oil, Wu couldn't walk without the cane, and carried it with him wherever he went...
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