Although the Falcon spacecraft is a landing spacecraft, the original engineers equipped it with a high-power fusion engine that obviously exceeded the demand. This design is of course useful, and at this moment, Zhao Changxing directly took out the engine that can be used in
The drilling machine working in a vacuum and low temperature environment directly connected the power supply to the Falcon spacecraft and started working using its energy.
The soilless cultivation workshop is not intended to be built directly on the ground. The reason for this is, firstly, to consider the amount of work required to level the ground, and secondly, for the need for thermal insulation. Zhao Changxing needs to drill some holes on the ground first and fix some support columns.
live, and then lay the wall on top of the support columns.
When the second phase of permanent buildings is built, Zhao Changxing will need to spend energy and time to level 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 were connected to each other.
Arrange in a straight line and have exactly the same distance from each other.
The first batch of supporting columns totaled 100, occupying an area of 100 square meters.
After that, the floors of the planned soilless cultivation workshop were taken out. They were very thick, a full 25 centimeters, and integrated 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.
Just finished this login work.
Everything you brought to log in this time has been installed.
After looking at the time, nearly eight hours had passed. After touching his growling stomach through his 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 Spark spacecraft, in addition to food, water, oxygen, fusion energy and other reserves were in critical condition. He had to bring some supplies back, otherwise, the entire spacecraft would be shut down in two days at most.
In fact, for Zhao Changxing, water, oxygen, and fusion energy are the same thing. As long as water can be obtained, all three can be replenished. Because water can be electrolyzed into hydrogen and oxygen, and oxygen is used for
Breathing, hydrogen can be used as fusion energy.
On Sedna, there is no shortage of water, but pure and 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 workload of subsequent work,
Zhao Changxing still planned to go a little further and try his best to get some mixture with a 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 one 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 is the most energy-saving. He took out the electric heating knife he carried and slowly inserted it into the mixed
Among the ice cubes with various impurities, no fog was seen at all, and cracks appeared very quickly where they came into contact with the electric heating knife.
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.
One side was a smooth cliff, and the other side was also endless flat land. He patted his head gently, got up, and planned to take a detour back to the top. But the next moment he realized it and realized that this was not the earth, but the earth.
It's Sedna.
His legs bent, and the next moment he straightened up suddenly, and 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, the water ice weighed about a hundred kilograms. He dragged it back with a rope. After placing it, he tiredly drove the Falcon spacecraft back to the Spark spacecraft.
middle.
Nearly a ton of water is enough for him to do many things. However, the water, oxygen, and fusion energy reserves in the Fire spacecraft are seriously insufficient, and they will have to be continuously replenished in the future. I am afraid that in the days to come, every time he goes down, he will come up again.
Every now and then I have to find a way to bring some water back.
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 his meal only consisted of 30 grams of meat, a small bowl of rice, some vitamin tablets and a large glass of water.
After eating these things, the hunger in his belly was not relieved, but became more serious. But he could only endure it. After all, the next meal was eight hours away, and he could not disrupt his eating plan.
During this rare break, he once again began to think about the extremely important issue of where to get food. But 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, only to feel 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 begins. Using one bag means one bag is missing, which means that a certain patient may lose his life in the future. But now
I really have no choice but to use some first.
However, this is obviously not a long-term solution. The most fundamental problem is still 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 roof was supported by a hundred thick support pillars, about one meter above the ground, with a total area of
A large house with a height of 100 square meters was built.
Of course, what is built now is just a shell, and a lot of equipment installation and debugging work will need to be done later. Only after everything is done can it be put into operation. At this moment, it has not even had time to do the sealing work, and the inside is still
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 Fire spacecraft again. After that, he rushed to the computer and, with the help of Xiao Xi, 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, rice, wheat, potatoes, sweet potatoes and other staple foods are all 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 problem of food
question.
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 it is not necessary. Because in nature, plants fix carbon dioxide through photosynthesis to synthesize sugar, that is, carbohydrates are too common and too common.
Simple and cheap, there is absolutely no need to go to great lengths, use extremely complicated steps, and consume extremely high costs to synthesize it 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 read 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 contained in corn seeds.
There are...necessary equipment...and if we modify them, we should be able to get them together."
Although seeds are precious, you can still use them in small amounts.
After confirming that the whole process was completely fine in theory, Zhao Changxing became excited. He reluctantly used two more packets of nutrient solution, replenished his physical strength, and immediately started to get busy.