I am a Primitive Man

(The last chapter may have involved some sensitive vocabulary, it was blocked, and it may take two days to be released...)

Now there are basically two key problems to be solved.

One is how to make a larger wooden pit on the wood that can accommodate more things, and the other is to solve the problem of how to solve the problem of wooden wedges nailed into the wooden pit and there is no way to pull them out.

Especially the latter question about wooden wedges.

If this problem is not solved, the matter of oil extraction will not be able to start.

Even though the time and effort in the primitive era are worthless, after so much labor and time, only one disposable product can be produced, and this disposable product can only squeeze out a dozen catties of oil.

Even if Han Cheng is used to a slow-paced and inefficient life, he still can't accept the disproportionate things like effort and labor.

Son of God, can you dig a hole along the trunk?

After hearing the news from Han Cheng that thicker trees may have to be felled in order to create a pit that can hold more tung oil fruits, Mao Er's childish face twitched a little.

Because it has been a lot of trouble to bring down the current tree in its entirety, and it will be even more troublesome to put another tree thicker than this one. The big bronze saws are not long enough and need to be re-forged to be longer.

Because he didn't want to cut down bigger trees, Mao Er stared at the thick trunk lying flat on the ground, and began to think about how to make a bigger tree hole without cutting down bigger trees.

After thinking about it for a while, he actually came up with a solution.

After hearing Mao'er's words, and looking at the thick tree trunk lying flat on the ground, Han Cheng was awakened immediately.

How could I forget this method!

Digging a wooden hole perpendicular to the trunk will be greatly restricted by the thickness of the trunk itself, but as long as you dig the wooden hole from one end to the other along the direction of the trunk, as the length increases, The wooden pit can be much deeper, and the capacity is naturally increased.

Good! Good! Mao Er, your method is really great!

Han Cheng, who was full of smiles, patted Mao Er's shoulder vigorously, and did not hesitate to praise him at all.

Originally, I was still a little nervous cat ears, but now I saw Shenzi not only not angry, but also praised me so much, the little anxiety in my heart has long since disappeared, and the rest is only a deep sense of joy and full of heart excitement.

I also solved a problem myself!

It's just that after it's erected, it's too high. You have to stand on the fence and smash wooden wedges in.

Wu, who stood aside and figured out what he was going to do, scratched his hair and said aloud.

It doesn't matter if you don't stand on the fence, you can build a shelf, stand on the shelf and smash it, just like when we unravel the wooden boards.

Mao Er, who was praised, was very active in his thinking and excited, and immediately offered another solution.

When the tribe saw the tree trunks into planks with a large saw, they needed to set up frames on both sides of the tree trunks when they encountered those trunks that were too tall, and the two stood on the frames and sawed vigorously.

So it's not surprising that Mao Er came up with such a solution at the moment.

Han Cheng smiled and waved his hand. It is not necessary to smash the wooden wedge in to erect the tree trunk. It is also possible to smash the tree trunk lying flat.

After all, this is something that can be done by one person, unlike the saw that two people pull.

After Han Cheng said such a method, Wu, Lie, Mao Er and other people who had been around Han Cheng not far away for a hundred years suddenly had their eyes lit up. This is indeed a good method.

So Han Chengcheng began to arrange for people to start digging the wooden hole along the intact end of the thick oak tree, and at the same time have people saw off the other end, the section that was destroyed after being pulled out of a wooden hole.

When I chose this tree, besides the appropriate thickness, another reason was that the tree was handsome and tall enough.

tree height.

Now even if it is cut off again, the remaining part is nearly six meters long, which is enough for use.

At this time, Dazuo's body is no longer hindered. Because he discovered the tung oil fruit, he was directly lifted from his slave status by Han Dashenzi. He has become a second-class citizen of the tribe, and now he is full of energy. under great construction.

Therefore, his upper body was fine just now, and he came to Han Cheng, saying that he wanted to go back outside to repair the road.

Seeing that he was healthy and active, Han Cheng asked him to pay more attention to rest and agreed.

Those who sent Bigfoot back, seeing that Bigfoot was not in danger, left the tribe the next day and went back to build roads.

Even so, Bigfoot will not be alone on this trip, because besides some members of the trade team, there are also some women and minors in the tribe who go with him.

They went there to pick up a lot of tung oil fruits, and then brought them back.

A group of more than 20 people walked west along the newly built road.

Accompanied by four donkey carts.

The minors sat on the donkey cart, full of novelty and joy. Some people lay on the donkey cart, and looked at the rapidly receding ground through the gaps in the cart. (No nonsense, just looking through a small gap, things on the ground receded really fast, back then it was still a slow bullock cart)

Some people lay on the donkey cart and looked at the cloud that could not be shaken off and moved forward with them. Some minors pointed to the unseen scenery on both sides of the road, and they were so excited.

The donkey cart went all the way, leaving laughter all the way...

Within the tribe, the work of digging holes stopped again, and problems encountered in the work again.

This time the problem is still more difficult.

Digging holes in the tree trunk went smoothly at the beginning. After all, they have been trained as old carpenters. It is not a problem to dig such a hole, but as the hole continues to deepen, the problem also becomes It appeared slowly.

As the cave deepened, it became more difficult to dig. When the hole was barely two meters deep by the lame team, there was no way to continue digging deeper.

At this time, there were still nearly four meters behind this thick trunk that had not been chiseled.

Even if it is necessary to leave a section at the end that does not need to be chiseled, there are still three meters that have not been chiseled.

Son of God, forge longer tools...

Lame, who is determined to be like Lu Ban, also became anxious this time, and made up his mind to dig the hole in the trunk.

After thinking for a while, Han Cheng shook his head, it was too troublesome to do so.

Moreover, even if a five-meter-long chisel can be made, it is not easy to cut a regular hole with this five-meter-long chisel. This requires too much skill and physical strength for the carpenter.

Saw the trunk open, from head to tail, and down the middle.

Han Cheng looked at Lai and said.

This……

Lame seemed hesitant, he was worried that after sawing the tree trunk from the middle with a saw, there would be no way to extract oil. After all, when digging the wooden pit for oil extraction, Shenzi specially told him not to break it.

Moreover, they also felt that if they opened the thing, they might not be able to use it to press oil again, because the wooden wedges were very strong when they were driven into it.

It's okay, try sawing it off.

After understanding Lame's worries, Han Cheng said with a smile and waved his hands.

Han Cheng had never come into contact with this kind of oil press for manual oil extraction before, and now he can still try it out and learn while fighting.

Digging the tree hole in front of me encountered difficulties, and it reached the point where there was no way to continue digging deep without breaking it open.

At this time, there is no other way to do it except to get rid of it.

As for how to make the two pieces of wood fit together after breaking open, that is something that needs to be solved after breaking open.

Lame led the way.

So, not long after, the battered tree trunk 'stands up' again under the joint efforts of everyone, and then two people who often pull big saws start to stand on the erected shelf, pushing one by one Pulling starts sawing from top to bottom...

After the tree trunk was broken in half, it became easier to start chiseling again. Several carpenters chiseled there in batches according to the lines drawn by the lame, and the progress was four or five times faster than before.

However, although the progress has improved so much, the people who are working do not feel much excitement, because they are all feeling faintly worried about the next thing. After closing it again, it doesn't work.

After more than two days of grinding, the two halves of the tree trunks have been completely dug out. There is a semicircle on each of them, and when they are put together, they become a hollow cylinder inside.

How about getting some tung oil fruit?

Lame wanted to find a way to glue them together as much as possible. Han Cheng thought about it and didn't let it go. Instead, he asked people to start making tung oil fruits and put them in for experimentation.

Because the tree is thick enough, even if part of it is taken out, the rest is very heavy.

Now one is on top of the other, which is much heavier than the legendary coffin lid.

Han Cheng wanted to try to see if he could hold this kind of supporting force with his own weight alone. If he could hold it, it would be great, and it would save a lot of trouble.

The people who went to the road construction site to collect tung oil fruits have already returned, pulling as many as four donkey carts, and the people who followed them did not come back empty-handed, and more or less carried them in their hands.

If the 'oil press' can be done well, the oil extracted from the tung oil fruit brought back by the tribe this time can basically be used to brush rattan armor.

Under Han Cheng's instructions, after going through the procedures of stir-frying, shelling, mashing, and wrapping, a package wrapped with fried tung oil powder was filled into the box that was placed here horizontally, and it was not known whether it could be used or not. Inside the oil press.

This time, two tung oil powder packages were filled into it, which weighed about thirty catties.

After pushing them to the bottom with a stick, just like the last unsuccessful experiment, a circular wooden board with the same thickness as the inside was filled in.

After doing this, I started to put wooden sticks in it one by one. After a certain number of wooden sticks were stuffed, and it was simply difficult to stuff them with my hands, I started to put on the bronze hammer.

Boom boom boom...

The sound of the hammer hitting the wooden stick and nailing it in continuously sounded, and the surrounding was quiet. Everyone was looking at the modified oil press, waiting for a miracle to happen.

Lame and Mao Er, who participated in the whole process of production, did not even dare to breathe out, stared at it without blinking, and their hearts were suspended, for fear that something might go wrong.

However, the error still appeared.

Facts have proved that the coffin lid cannot be nailed tightly without nails.

At the beginning, the supporting force was not particularly strong. Relying on its own heavy weight, the half of the tree trunk pressing on it could still remain motionless, but as these tree sticks were continuously nailed inward, the supporting force inside It got bigger and bigger, and the upper half of the tree trunk was finally propped up with a gap.

Oh~

Lai and the others sighed in unison, feeling very disappointed with the result.

Although Han Cheng was a little disappointed in his heart, it was not a big deal. After all, this thing was developed from scratch, and any mistakes may occur in the middle.

Immediately, let people lift the upper board together, remove the stick, and reload it.

This method of sawing the tree trunk in half was conceived to solve the difficulty of digging a hole, and now it unexpectedly solved the difficulty of taking out the hard stake nailed in by accident. .

No matter how firmly these wooden sticks are supported inside, you only need to open the upper half of the tree trunk, and this support force will disappear immediately, and the firmly supported tree trunk will also become loose.

After filling these things again, Han Cheng asked people to find some tough vines, and tied them up firmly, as many as ten vines.

After finishing these, continue to fill in the wooden piles, and then use a bronze hammer to continuously nail them in.

Oil! Oil! There is oil!

This time, with these vines for restraint, as the stumps continued to be nailed in, the upper half of the trunk was not stretched.

After smashing like this for a while, a sharp-eyed person pointed to the bottom of the simple oil press and shouted in surprise.

Seeing this, Han Cheng and other people around looked there.

Seeing this, Han Cheng was immediately overjoyed. He saw a drop of yellowish oil flowing out of the hole drilled in advance at the bottom of the simple oil press, and then dripping into the pottery basin below.

This kind of scene is not very beautiful, but Han Cheng looked at it with a smile on his face, and those who participated in the whole process of making this simple or crude oil press, such as lame and cat ears, even jumped up and down. Cheers loudly.

The second senior brother, who was holding a bronze hammer, knocked on the tree stump, looked down at the drops of oil dripping down, grinned, then held the bronze hammer in both hands and increased his strength, hitting the tree again and again. Knock it up.

With the increase of the squeezing force, more grease came out, dripping down from one drop at the beginning to a thin line, continuously dripping into the clay pot below, from less to more.

There were cheers all around, and everyone had happy and uplifting smiles on their faces.

This is the taste of success!

Before success, it is often necessary to put in a lot of hard work, experience a lot of pain, and endure suffering, but when all this is over and success really comes, all the previous efforts have turned into sincere joy at this time.

Moreover, the people who gave more and experienced more suffering, the more intense the joy they get at this time.

This point can be deeply felt by watching happy people jumping higher than agile people with lameness.

Because of the appearance of this oil, the whole tribe suddenly became a sea of ​​joy.

Under the hammering of the second senior brother, these tung oil fruit powders were squeezed to become more solid, and the oil contained in them continued to flow out, forming a patch of amber in the clay pot.

Stir-fried tung oil fruit, peeled tung oil fruit, smashed and squeezed the oil!

Han Cheng howled excitedly, and the people around him also shouted excitedly: The oil is squeezed! The oil is squeezed!

Then there was a jubilant and busy scene. Everyone was frying tung oil fruits, peeling, smashing and mashing them with great interest.

And here, after no oil dripped from it, Han Cheng began to put the tung oil collected in the clay basin into the jar.

Then use a scale to weigh, and after the weight of the jar itself is removed, the oil obtained this time is a little more than five catties.

The tung oil fruit powder put into it this time is about thirty-five catties, that is to say, the oil yield is about one-seventh of the tung oil squeezed by this method.

This kind of oil yield rate is not high. There must be a lot of unsqueezed oil in the oil residue of the two dumplings, but it doesn't matter to Han Cheng now.

As long as most of the oil in it can be squeezed out, there is no problem. As for the rest, just waste a little bit. Who made the oil press machine that he made so rough, and the tung oil fruit resources there are like this Is it sufficient? !

At this moment, looking at the tung oil in the jar in his hand, Han Dashenzi looked extraordinarily proud, and four words appeared on his face, that is, rich and self-willed.

After everyone's busy work, more tung oil fruits were processed, and this time they put a lot more, a full three hundred and fifty catties!

In order to put more tung oil powder inside, these tung oil packages were not packed loosely like before, but were trampled firmly with their feet, making them into pancake shape.

Only in this way, new problems appeared.

The problem is that the pancakes trampled on by people are of different sizes. After one is placed next to the other, the big ones are big and the small ones are small, leaving a lot of gaps in the middle. The place will not be squeezed in the next oil extraction, which will greatly affect the oil yield.

After standing here and scratching his scalp for a while, Han Cheng came up with a solution.

He called Liao over, and asked Liao to weave circles of the same size with bamboo strips.

The halos woven from bamboo strips are forty-five centimeters in diameter and four centimeters thick.

With these circles of the same specification, the situation of pancakes of different sizes and thicknesses is solved at once.

When making oil cakes, you only need to spread the linen cloth on the ground first, then put the circle on the linen cloth, and then continuously fill it with tung oil fruit powder. Tie the corners of the linen to each other.

And because there is a relatively hard bamboo ring on the outside, after standing up the pancakes, these pancakes will not deform as easily as before.

With the experience of last time, this time when putting the pancakes inside, instead of closing the 'lid' as before, and then putting them inside after binding them dead, first put the pancakes one by one on top of each other. The lower side is lined up neatly, and the circular plank is leaned against the end. After everything is done, the upper half of the tree trunk is covered and tightly tied with tough vines.

Start squeezing the oil!

Han Cheng yelled, and several people began to fill it with wooden stakes one by one.

Because there is a lot more tung oil fruit powder in it than before, so this time these wooden stakes are left outside for a long time.

Bang! Bang!...

After filling it tightly, the second senior brother cheered up and started smashing the wooden pile with a bronze hammer in his hand.

At the very beginning, the stakes went in very quickly, but as the number of smashes increased, the speed began to slow down, but in contrast, there was tung oil dripping from the bottom of the oil press.

This time, the tung oil fruit powder was put in enough, ten times more than the first time, so after the second senior brother continued to swing the hammer for a while, the tung oil that was originally dripping down turned into a trickle. The earthen basin below was dripping.

Such a scene made Han Cheng and the others smile happily.

The second senior brother also cheered up, and smashed down with one hammer after another, constantly squeezing the tung oil powder.

After all, human strength is limited. After the second senior brother smashed it for a while, he was tired and out of breath, and the strength of the hammer he swung was not as strong as before, so the senior senior brother stepped forward to take over...

Looking at the pot full of tung oil, Han Cheng and the others were extremely happy.

With these tung oils, Shenzi can finally start brushing rattan armor, and the quality of his tribe's rattan armor can finally go a step further!

The joy in Han Cheng's heart was weighing the tung oil squeezed out in batches, and it became lighter after adding up.

The tung oil looked quite a lot in the basin, but after weighing it, it was only thirty-five catties.

Calculated according to the oil yield rate recorded during the last experiment, this time you should get 50 catties of oil.

Even if this batch of fruit is not as plump as the previous batch used for the experiment, it is impossible for the difference to be so large, it is just fifteen catties less!

Where did the fifteen catties of oil go?

Smash it again.

After thinking for a while, Han Cheng said to the second senior brother who had recovered a lot. The second senior brother picked up the hammer and continued to smash the wooden pile.

It's just that under his continuous pounding, the wooden stake basically stopped entering, and only a few sporadic drops of oil dripped from it.

Son of God, there is no more oil in it.

Wu was talking at the side, but Yuan didn't follow up, but showed a thoughtful look on his face.

Today's circle has been initially introduced into the world of mathematics by Han Cheng after nearly a year of shocking influence from the Qingque tribe.

From Han Cheng's weighing just now, she also saw some tricks.

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