Vol 2 Chapter 1324: The key problem restricting human exploration of space

【Unmodified version】
Having said that, Wu Hao pointed to the introduction video played on the large screen hanging next to him, and smiled at the crowd and introduced.
"Our inflatable inflatable space experimental capsule uses a new type of polymer composite material specially developed by us. Compared with some traditional polymer composite materials, our material has many advantages.
For example, generally this kind of material is prone to material aging, hardening, and loss of toughness during a long time of alternating hot and cold temperatures. But our material does not. It can maintain toughness for a long time in such an environment of alternating cold and heat, and has excellent anti-aging properties. "
"Moreover, this polymer composite material is also very strong. Because of its high strength, it has strong resistance to pulling and impact.
Of course, no matter how strong it is, it is difficult to withstand the impact of those space debris at six or seven kilometers or even more than ten kilometers per second.
Not to mention this kind of polymer composite material, even the hardest metal chromium and titanium in the world can't bear it.
Therefore, our human spacecraft did not expect to rely on materials to prevent these debris from hitting, but established an accurate debris detection and prediction mechanism.
Real-time monitoring of the state of debris in this space, so as to adjust the orbit of the spacecraft to avoid debris. "
"Secondly, this is to have good self-healing and repair capabilities. That is to say, after being hit by these debris, the spacecraft can repair itself in time, or quickly repair it. In order to avoid the deterioration of the situation and threaten the safety of the spacecraft , And even the safety of astronauts inside the spacecraft.
This time, we put a special liquid in the interlayer of the polymer composite shell of the inflatable and expandable experimental capsule.
When the inflatable inflatable space capsule leaks, this special liquid will block the leak in the shortest time, preventing the pressure inside the spacecraft and the outflow of air in the capsule.
In addition, the inflatable and inflatable shell that constitutes the inflatable inflatable test chamber is also made of overlapping materials.
This will be able to further enhance the sturdy strength of the inflatable inflatable space capsule, and its comprehensive performance has even surpassed the metal shell of the traditional spacecraft and is even better. "
Speaking of this, Wu Hao said with a smile: "Since the launch of this inflatable space test module, we have been closely monitoring it. It has been nearly three months since the launch, and its orbital operation has been in good condition. ."
Everyone, please see, this is the situation inside this inflatable inflatable space capsule. What we carry internally is the space farm experimental project.
After the inflatable inflatable space capsule was launched into the sky, the space experiment module was inflated and expanded, and the space farm experiment project began.
This time, there are more than 20 kinds of plant seeds accompanying the spacecraft into space. In addition to some vegetables, there are also some wheat and rice, corn, and other food crops such as potatoes and sweet potatoes.
In addition to plants, this time there are several protein-rich insects and some microorganisms to build a complete space ecosystem at a time.
According to the plan, this inflatable inflatable space capsule will autonomously fly in space for seven to eight months to fully verify its reliability and safety.
In addition, it will verify the feasibility of building a space farm and a space ecosystem in the space capsule.
As you all know, the food issue has always been one of the most important issues that plagued us as humans go to space. At present, all the astronauts on all the spacecraft of mankind depend on supplies from the earth to survive.
At regular intervals, the cargo spacecraft carrying these many materials will be lifted off, docking with the space station, and transporting important materials to the space station.
For example, the most important water and food for astronauts, which almost occupy more than half or even more of the capacity and space of the entire cargo spacecraft.
In the future, humans will land on other planets, such as the moon, Mars, and even farther planets.
It is a bit unrealistic, unreliable, and expensive to rely on earth materials for replenishment.
Therefore, adapting measures to local conditions and self-reliance are currently the focus of research by scientists, and it is also one of the key problems that restrict our human exploration of space.
Speaking of this, Wu Hao smiled slightly: "A few years ago, there was a less famous space science fiction movie called "The Martian". I believe that everyone has seen or heard of this movie more or less. The main story of the film is that the protagonist survives by growing potatoes on Mars.
This is not a completely false sci-fi fantasy, many of which are created based on our current scientific research results.
For example, we display the relevant data based on the previous series of detectors.
There are a lot of water resources in the south pole of the moon, as well as landmarks on Mars.
Like in the south pole of the moon, UU reads www.uukanshu. Com has a large number of glaciers and frozen soil, which contain considerable reserves of water resources, enough for humans to use on it.
On the surface of Mars, according to NASA's latest exploration research results, there is liquid water on the surface of Mars that changes with the seasons. In addition, in the South Pole of Mars, there are also abundant glaciers and frozen soil, and the water resources are also very considerable.
With water resources, this has laid the foundation for human survival. In addition to drinking water for astronauts, water can also be used as fuel.
The decomposed hydrogen can be used for rocket fuel, and the separated oxygen can not only satisfy human breathing, but also act as a combustion-supporting agent.
The carbon dioxide in the Martian atmosphere, as well as the carbon dioxide in the exhaust gas that we humans breathe, combine with the hydrogen removed from water splitting to generate another high-quality rocket propulsion fuel, methane.
All these can provide very favorable natural conditions for the survival of our human beings on distant planets.
Of course, the reality may be more difficult than this, and there are still many problems that have not been solved by scientists.
For example, these planets are very desolate, and there is no organic matter in the soil, let alone nutrients. If you want to grow vegetables and grow food on these alien planets, you must constantly improve the soil.
This is a big project that cannot be completed in a short time.
So for our human space exploration missions, the best way is this advanced factory soilless cultivation technology.
It does not depend on the soil, but directly uses hydroponics or air cultivation to carry out factory-scale planting, so as to provide sufficient food supply for the astronauts.
And our space farm project also wants to explore this field, so as to seek the ambitious goal of mankind's long-term survival in space and other planets. "