Thanks to the fishing nets and vine plants, the team was able to catch a large number of fish in freshwater areas.
They then found avocados, cashews and other fruits in the forest, as well as wild ginger and clove trees, two important spices that make their food more delicious Of course, their biggest discovery was the more than 10 oil palm trees found by the fifth team, which belong to the same palm family as sugar palm and coconut, and the fruit oil content is as high as 50 or more, and an oil palm can produce 3,040 kilograms of oil per year, and 100,300 kilograms of oil per mu.
The oil yield per mu of oil palm is 23 times that of coconut and 78 times that of peanut, so it is known as the "oil king of the world".
They had been looking for coconut trees because they could extract oil, but now they have found a better oil crop Of course, coconut is not only an oil crop, but also eaten as a fruit, and can provide fiber, which is also incomparable to oil palm.
So we couldn't find this universal plant, and everyone was still a little disappointed.
But in any case, with oil palm, they basically don't have to worry about vegetable oil in the future, and they can even use it to make soap, you know, they don't have any washing products now, and the girls who are responsible for washing clothes are completely washed by water at the beginning, which is very painful and difficult to clean.
Later, with the help of a few boys, they switched to using the calcined ash of the conch shell and a little animal fat as soap, and the effect was much better, but the animal fat they obtained now was very limited, and everyone lacked oil and water in their stomachs, so it was not enough at all.
Washing their hair was no problem, and they found hibiscus in the forest, the leaves of which make a natural shampoo.
At this time, a batch of oil palm fruit happened to be ripe, so they quickly sent a large group of people to collect a batch back, and then spent a few days drying it to prepare for oil extraction.
It's a hassle for them.
"It shouldn't be very difficult, ancient China has always used manpower to extract oil, and we should be fine."
Jiang Chao said.
As a young man born in the city, his knowledge of this kind of thing basically comes from books and TV networks.
"Oil extraction has relatively high requirements for technology and equipment, so in the past, ordinary families could not extract oil by themselves, but there were special oil mills, where there were special oil mills and oil pressers, at that time it was a very common processing industry, and there are still many villages and towns ordered by oil mills."
Liu Hongjun said that he is older and from a rural area, so he knows a little more about this.
"I remember when you say that, I saw it in a documentary before, it was probably a group of shirtless muscular men grabbing a huge piece of wood together, and at the same time exerting force to hit the rapeseed, and then the oil came out, but how exactly I got it, I didn't pay attention to it at the time, and it is impossible to remember it now," Zhang Chengbao said while recalling.
"I also have an impression of China on the tip of my tongue," Ms.
Huang said.
"So there shouldn't be any technical content, isn't it just physical pressing, let's make a few stones or mallets and the like, just press hard, as long as the kernels are dry enough, we will definitely be able to squeeze out the oil."
Yang Jian said disapprovingly.
"It's really simple to squeeze out the oil, and you can pinch it out a little by hand, but the problem is the oil yield, if the method is too rough, the oil yield is very low, and the oil quality is very poor, there will be impurities, and the taste is not good, so it's too wasteful."
Fang Jinyan shook his head and said.
"Then what do you say we are going to do?"
Yang Jian asked.
"Actually, it's not difficult, you can make an oil extraction equipment out of trees and bamboo."
Fang Jinyan said.
"But we haven't even seen each other, how can we do it," Jiang Chao said with a roll of his eyes.
"The principle of this equipment is very simple, we should not be difficult to design ourselves, in fact, what is more difficult is the skill when extracting oil, those oil pressers in the oil mill are very skilled, and the cooperation is very tacit, people like us who have little experience, I'm afraid this is a big problem.
And oil extraction is not only a technical job, but also a physical job, and you may have to be mentally prepared to suffer," Liu said.
"There is a rapids with a large drop not far from the upper reaches of the creek, and we can consider getting a hydraulic device, which can not only be used to extract oil, but also use the same device if you need to make rice or grind flour or something in the future, as long as you change it temporarily."
Fang Jinyan said.
"But this will be a lot more complicated, with our current conditions, can we really do it," Liu Hongjun said.
"Let's try it, I want to come up with a blueprint first, and then test the effect, even if it doesn't work, most of the equipment can be repurposed without wasting too much of our labor."
Fang Jinyan said.
"Since you say so, let's try it," Mr.
Liu said.
If someone else says this kind of thing, he may suspect that the other party is whimsical, but Fang Jinyan has always been very reliable in his words and actions.
"Give me a day, I'll take someone over to inspect the terrain there, and by the way, go to the neighborhood to see what suitable materials are available, and then come up with an optimal plan, if nothing else, the construction should be able to start tomorrow."
Fang Jinyan said.
"Okay, that's it, you stay safe."
Liu Hongjun advised.
"I know."
Fang Jinyan nodded and said.
On the second day, Xu Xiaoyao's copy of another ID card showed an additional hydraulic device diagram that looked exquisite.
In order to save paper, this time the reverse side is still blank, the drawing is drawn on the front, and a big tree that was selected by Fang Jinyan as a support is painted right next to Xu Xiaoyao's face.
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The device wasn't very complicated, except for the clever borrowing of terrain and the surrounding trees, the rest was mainly a wooden water wheel, a few shaft levers, and some ropes, as well as a boulder for crushing and a stump that was scheduled to dig a hollow in the tree, which Fang Jinyan planned to cut down.
After everyone got this drawing, they no longer doubted the feasibility of this plan, because although this drawing is not very complicated, it is extremely professionally drawn, and all kinds of annotations are very clear and clear at a glance, especially those straight circles, which are almost like drawing with a ruler and compass In fact, Fang Jinyan can't have this thing now, it should be purely hand-drawn.
With this blueprint, everything is much easier to do, even the most technical water wheels, it is not difficult, although they do not even have a single nail now, but they can rivet by drilling holes, and they can also be tied with ropes or vines.
Although this is more labor-intensive, they still have enough manpower, and not only the men are actively involved, but many girls also come to help.
It took about four days for a simple hydraulic installation to be built.
When the water wheel is fixed and tied with the sisal rope, the turbulent water flow drives the water wheel, twists the rope, and then through a series of conduction devices, lifts the boulder at the other end of the rope, converts the water energy into the potential energy of the boulder, and when the boulder reaches a certain height, the water wheel rotates around and touches the mechanism, so the boulder falls down instantly and smashes into the hollow dug out of the big stump In this cavity, the completely dehydrated oil palm fruit is placed, and under the huge impact pressure of the boulder, the palm oil is squeezed out, and then the palm oil is precipitated and flows out through a small opening in the cavity, and here, the container for receiving palm oil has long been placed.
Seeing the first drop of palm oil coming out of the small mouth, everyone cheered loudly There were even girls who cried excitedly, and people who didn't know thought that they had seen the live TV broadcast of humans landing on Mars In fact, they are simply repeating what humanity has done thousands of years ago.
However, they themselves can understand each other's feelings very well, because only by really doing it, do they know that this very primitive mechanical device, in fact, is not as simple as it seems, although they have a near-perfect design drawing, but in the actual process, they still encountered a lot of difficulties and failures, and finally relied on everyone's improvement and debugging again and again, before finally succeeding.
Only the achievements after overcoming countless difficulties are the most exciting. t1706231537: