In space life, water is the most precious resource. It is estimated that transporting 1 gallon of water to suborbital space costs at least US$83,000.
Therefore, in order to save costs and time, the "water circulation system" was invented.
To put it simply, everyone collects the wastewater produced in daily life and even the urine and sweat of astronauts.
The toilet in the habitat cabin is a ruthless "juicing machine" that can squeeze out all the water molecules that can be squeezed out. After the feces is dehydrated, it becomes as dry as sand, and the urine will be directly dried into urea and uric acid crystals, all of which will
After vacuum packaging, put it into a special box marked "Hazardous Substances". If no accident occurs, these "Hazardous Substances" will be brought back to the earth.
Having said that.
After the wastewater is collected, it is recycled and treated by specialized equipment. The treated wastewater is subjected to a series of operations such as distillation, separation, and filtration. Finally, it can be turned into drinking water that everyone can drink. There is a joke among astronauts that today’s coffee is yesterday’s coffee.
But even so, the water cycle is not infinite.
A normal person consumes about 3.7 kilograms of water every day, but the water circulation system can only regenerate 3.5 kilograms of water, and 0.2 kilograms, or 200 grams, of water is lost.
200 grams of water is lost a day.
If Mark Watney wants to avoid dying of thirst on Mars, he must ensure that there is 300 kilograms of water reserve in the habitat.
Fortunately, NASA in the United States prepared sixty-eight days of supplies for six people just to be on the safe side.
They only stayed for 18 days before evacuating in disgrace, leaving only Mark Watney with the supplies for six people.
Water resources are sufficient, with 600 kilograms of water reserve.
Without considering other conditions, Mark Watney would have no problem surviving on Mars for 8 years.
Needless to say, Wu Siyuan, [Shennongjiao Space] has a lot of water containing spiritual energy.
In the movie, Mark Watney dared not take a shower for a year and a half, but if Wu Siyuan was willing, there would be no problem taking a shower every day.
Even if there is no water source in [Shennongjiao Space], Wu Siyuan's [Water Control Technique] can condense water source from the air.
Although Mars is dry, there is still water!
But humans are fragile creatures.
Rely on water, food, and oxygen.
There is an [oxygenation machine] inside the habitat cabin.
[Oxygenator] is a tool that uses carbon dioxide enriched by the fuel generator of the Mars Ascent Vehicle (MAV) to produce oxygen.
On Mars, the most indispensable thing is carbon dioxide, which accounts for up to 95% of the air!
This is a way to obtain oxygen.
On the International Space Station, astronauts use another oxygen generation system.
It reprocesses the air in the space station, efficiently and sustainably providing breathable air to astronauts continuously.
This device separates hydrogen atoms and oxygen atoms in water molecules through an electrolysis process. The oxygen is released into the air, while the hydrogen is discarded into the universe.
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Because there is neither carbon dioxide nor energy on Mars - there are solar photovoltaic generators that can continuously convert light energy into electrical energy, which is enough to support the operation of the entire habitat cabin.
If that doesn't work, you can also electrolyze water to produce oxygen.
In the movie, oxygen never bothered Mark Watney!
What bothers Mark Watney is food.
Even if NASA brings sufficient supplies, and even if the other five companions run away and leave all the supplies to him, this small amount of food can barely sustain him for 400 days, but it will not allow him to stay on Mars again.
Survive for three years.
Because the next Mars landing will be in four years!
In the movie, Mark Watney built a space farm on Mars, used his rich knowledge of botany and agronomy, and made the most of the resources on Mars, and then successfully grew potatoes on Mars.<
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Including using microorganisms and bacteria in people's excrement to create soil suitable for potatoes to grow.
This process is just disgusting, nothing more.
But in order to obtain the water needed for potato growth, Mark Watney really risked his life and almost lost his life. There will be no [Mars Rescue]!
The method used by Mark Watney is to decompose hydrazine into nitrogen and hydrogen using a catalyst, and then introduce the hydrogen into a small space and burn it with oxygen to produce a chemical reaction and produce water.
The only problem is that hydrogen easily explodes!
As a joke goes: If a person farts in space, he is likely to be blown up by his own fart.
To some extent, this is no joke.
Because human farts contain a lot of hydrogen, and hydrogen, as a flammable gas, may explode at any time when its concentration reaches a certain level.
In the movie, Mark Watney failed to calculate the amount of oxygen he exhaled, which resulted in a hydrogen explosion.
That is to say, Mark Watney, the protagonist, has a strong aura, so he was not killed by the explosion, but only suffered a slight superficial injury.
The second time, Mark Watney put on a spacesuit and successfully ignited hydrogen, reacted with oxygen, and produced moisture.
Mark Watney goes to great lengths to create moisture just to grow potatoes.
Planting potatoes is just to let him eat mashed potatoes for four years.
This is a necessary behavior for an ordinary person.
But for Wu Siyuan, there are delicacies in [Shennongjiao Space], and he can eat them in different ways every day, and it will be fine for a thousand years - if he can live for that long!
There is no need for him to be like Mark Watney and spend all his energy [farming] on Mars just to survive!
So what is he going to do?
Wu Siyuan fell into deep thought in the habitat cabin.
According to his past time travel experience, when a movie or novel ends, it is when Wu Siyuan leaves this world.
Unless it is a comprehensive fantasy world, but there are very few such worlds, so I won’t go into details.
[The Martian] In this movie, Mark Watney did not actually have to survive on Mars for four years, but was successfully rescued by the returning Hermes in less than two years.
Rescued.
In other words, Wu Siyuan can only stay in this world for less than two years.
So what will Wu Siyuan do in the past two years?
Rule the world?
Boring!
It’s not that it can’t be done, but it’s not necessary!
So what does he want in this world? In other words, what does he want to get?