Although the Falcon spacecraft is a landing spacecraft, the original engineers equipped it with a high-power fusion engine that obviously exceeded requirements. This design is of course useful. At this moment, Zhao Changxing took out a drilling machine that can work in a vacuum and low temperature environment, directly connected the power supply to the Falcon spacecraft, and started working with its energy.
Soilless cultivation workshops are not intended to be built directly on the ground. The reason for this is, first, considering the amount of work required to level the ground surface, and second, due to the need for thermal insulation. Zhao Changxing needs to drill some holes in the ground first, fix some support columns, and then lay the wall on the support columns.
When the second phase of permanent buildings is built, Zhao Changxing will need to spend energy and time leveling the ground.
Amidst the splashing of gravel, with the help of a high-precision rangefinder and Xiao Xi, one after another support pillars with automatically expanding lower ends were fixed on the surface of Sedna by Zhao Changxing. They are in a straight line with each other and exactly the same distance from each other.
The first batch of supporting columns totaled 100, occupying an area of 100 square meters.
Afterwards, the floor of the planned soilless cultivation workshop was taken out. They are very thick, a full 25 centimeters, and integrate a series of things such as water and electricity channels, monitoring components, insulation layers, and radiation protection layers.
All the complicated things were already done when they were originally designed and manufactured. All the astronauts who arrived at Sedna needed to do was simply splice them together.
Also with the help of the rangefinder, Zhao Changxing fixed the first square floor with a side length of one meter on the four support columns, followed by the second, third, and fifteen more. This time the landing work has just ended.
Everything you brought for this login has been installed.
I looked at the time and saw that nearly eight hours had passed. After touching his growling stomach through the spacesuit, Zhao Changxing did not get on the Falcon spacecraft directly, but returned to the spacecraft and took out some tools.
At this moment, on board the Fire spacecraft, in addition to food, water, oxygen, fusion energy and other reserves are in critical condition. He had to bring some supplies back, otherwise, in two days at most, the entire spacecraft would be shut down.
In fact, for Zhao Changxing, water, oxygen, and fusion energy are the same thing. All three can be replenished as long as water is available. Because water can be electrolyzed into hydrogen and oxygen, oxygen is used for breathing, and hydrogen can be used as fusion energy.
There is no shortage of water on Sedna, but pure, large pieces of water ice are rare. They are mostly mixed with tholin, dry ice, solid gas, interstellar dust, etc. In order to reduce the subsequent workload, Zhao Changxing still plans to go a little further and try his best to get some mixtures with higher water content back.
With the Fireship spaceship watching in the sky, Zhao Changxing was not afraid of getting lost in this cold, dead, dark red world.
Walking about a kilometer toward the east - which is also the direction in which the sun rises for this planet - Zhao Changxing found what he wanted on the edge of a cliff.
For the extremely hard frozen water ice, mechanical cutting is obviously unwise. In this environment, heating cutting saves the most effort. He took out the electric heating knife he carried and slowly inserted it into the ice cubes mixed with various impurities. As a result, no fog was seen at all, and cracks appeared very quickly where the electric heating knife came into contact.
In less than half an hour, a large block of ice with a volume of less than one cubic meter and a mass of less than one ton was cut.
But while trying to drag away this large piece of ice, Zhao Changxing slipped, stumbled, and fell directly.
The gravitational acceleration of Sedna was less than 0.5 meters per square second, so he fell towards the bottom of the dark and deep cliff at a very slow speed compared to the earth, and fell to the ground.
There are smooth cliffs on one side and endless flat land on the other. He patted his head gently and climbed up, intending to take a detour back to the top. But the next moment he reacted and realized that this was not Earth, but Sedna.
His legs bent, and the next moment he suddenly straightened, his body flew up swayingly, jumping more than ten meters high, directly from the bottom of the cliff to the previous place.
This time he was much more careful and finally succeeded in fixing the large piece of water ice.
Even on Sedna, this water ice weighs about a hundred kilograms. He dragged it back with a rope. After placing it, he tiredly drove the Falcon spacecraft back to the Fire spacecraft.
Nearly a ton of water is enough for him to do many things. However, the water, oxygen, and fusion energy reserves in the Spark spacecraft are seriously insufficient, and they will have to be continuously replenished in the future. I'm afraid that in the days to come, he will have to find a way to bring some water back every time he goes down and comes back up.
After relying on heat to melt this large piece of ice, and separating the remaining gases during the melting process, filtering and purifying them, and pouring them directly into the electrolysis equipment, Zhao Changxing had time to take a shower and eat a meal. .
Zhao Changxing was starving after not eating for more than ten hours. But the meal only had 30 grams of meat, a small bowl of rice, some vitamin tablets and a large glass of water.
After eating these things, not only was the hunger in the belly not relieved, but it became more serious. But he could only endure it. After all, the next meal is eight hours away, so I can't mess up my eating plan.
During this rare break, he once again began to think about the extremely important question of where to get food. Unfortunately, he still found nothing.
In the next few days, he maintained this kind of life schedule, constantly traveling back and forth between the Sedna planet and the Spark spacecraft, pulling down boxes of building materials and pulling back pieces of water ice, until Until the last bite of food is eaten.
Now, he has absolutely nothing to eat. But the construction task must continue and cannot be delayed.
He gritted his teeth and entered the medical center. Full of heartache, he took a few packets of nutrient solution and drank it before feeling that his body had regained some strength.
This thing is for emergency use when you or others get sick in the future, and it is impossible to make it yourself before the industrialization process starts. Using one bag means losing one bag, which means that a certain patient in the future may lose his life because of this. But now I really have no choice but to use some first.
But this is obviously not a long-term solution. The fundamental problem remains unresolved.
On this day, he still landed on Sedna and worked for more than eight hours until the last roof cover was installed. As a result, a large house was built, which was supported by a hundred thick support columns, about one meter above the ground, and with a total area of 100 square meters.
Of course, what is built now is just a shell, and a lot of equipment installation and debugging work will be required in the future. Only when everything is done can it be put into operation. At this moment, it didn't even have time to do the sealing work, and the inside was still in a vacuum state.
Standing at the door where the isolation door had not yet been installed, looking at the endless darkness in the distance and the dots of stars in the sky, Zhao Changxing fell into deep thought for a long time.
There is water, carbon dioxide, methane, ethane, gold, silver, copper, iron, and countless other substances on this planet, but there is nothing to eat.
Suddenly, an idea flashed through Zhao Changxing's mind.
"If I don't have anything to eat, I'll make it myself! This is the only way I can do it now. If it doesn't work, I have to do it!"
He gritted his teeth and made up his mind.
Riding the Falcon spacecraft, he returned to the Spark spacecraft again. After that, he rushed to the computer and, with Xiao Xi's help, began to search the vast literature database.
Almost all scientific information from the birth of human civilization to its demise is recorded here. From the postpartum care of sows to the construction drawings of the Spark spacecraft, everything is available here.
"found it!"
Suddenly, Zhao Changxing's eyes lit up.
It was a paper titled "A new type of electric energy-driven artificial photosynthesis to fix CO2 and synthesize sugar."
Among a series of characters, Zhao Changxing keenly picked out what he needed.
Theoretically speaking, whether rice or wheat, or staple foods such as potatoes and sweet potatoes, they are carbohydrates, and this is the main source of energy to maintain the survival of the human body. Therefore, as long as we can find a way to synthesize carbohydrates through artificial means, we can solve the food problem.
Carbohydrates are composed of three elements: hydrogen, oxygen, and carbon. In theory, people can synthesize them directly from water and carbon dioxide-as long as the carbon dioxide can be fixed.
In the past human world, there were not many studies on this aspect. The reason is very simple and there is really no need. Because in nature, plants fix carbon dioxide through photosynthesis to synthesize sugar. That is, carbohydrates are too common, too simple and cheap. There is no need to go through all the trouble, use extremely complicated steps, and consume extremely high costs to synthesize them artificially. .
Even with the most advanced synthesis methods, the unit cost of synthesized carbohydrates is far higher than that of snowflake beef.
An experienced farmer can easily harvest a lot of carbohydrates by adding one acre of land and planting some potatoes. Why bother to synthesize them artificially?
But for Zhao Changxing at this moment, no matter how high the cost of artificial synthesis is, he still has to try it.
He looked at this paper attentively, and his heart gradually became clear.
"What about energy? With hydrogen supplementation, the fusion reactor can completely withstand it. I have a lot of water and a lot of carbon dioxide. Do I need 14 kinds of biological enzymes and NADH to participate in the catalysis? Let me think about it... Well, these biological enzymes are in corn seeds. Yes. The required equipment... can be put together with some modifications."
Although seeds are precious, you can still use them in small amounts.
After confirming that the entire process was completely fine in theory, Zhao Changxing felt excited. He reluctantly used up two more packets of nutrient solution. After replenishing his strength, he immediately started to get busy.
