Some of its characteristics are also very suitable for the environment on Mars.
If used well, Wu Siyuan will have a great possibility to build a real prototype of a city shell on Mars.
That thing is [Lijiao]!
[Lijiao], produced in the world of "Beast Blood Boils", is the [Liping Tree] that grows in the demon world.
This [Li Ping Tree] is shaped like a pot-bellied bottle, and the variety from Daban Town is the best. One tree can harvest 1,500 mocha of [Li Guo], which is about 1,755 kilograms of [Li Guo]!<
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The adhesiveness of this kind of [Lijiao] is amazing, and the glued things are stronger than the welded things.
In the world of "Beast Blood Boils", the male protagonist Liu Zhenshao once used all his strength to break the handle of a chair that was glued together with [Lijiao].
There are obviously traces of the two wooden rails being bonded together on the broken chair handle, but the upper end has been twisted off, and the lower end is still not separated.
You must know that at that time, the male protagonist Liu Zhenshao could compete with giants, but even like this, it was still impossible to separate the adhesive joints. You can imagine how strong the adhesive was, even if it was the strongest
Cement, in front of this [Lijiao], can only be regarded as the little brother.
However, this overlord-type strong glue has not been widely used in the devil world because it is afraid of water.
[Lijiao] is not afraid of fire or forced breakage, but it cannot be moisturized for a long time.
After being soaked in water for a long time, this [Lijiao] loses its adhesive ability.
Because of this obvious shortcoming, the application scenarios of this thing are very limited.
Wu Siyuan returned to the real world, but because of the characteristics of [Lijiao], he never took it out.
In the original novel, the male protagonist Liu Zhenshao applied it in desert areas and underground spaces.
But after arriving on Mars, Wu Siyuan discovered that [Lijiao] also has its uses.
Of course, before that, Wu Siyuan needs to plant the [Li Ping Tree] on Mars.
In order to obtain enough food to survive for four years, the male protagonist in "The Martian" chose to grow potatoes.
Wu Siyuan, on the other hand, plans to plant [Li Ping trees] in order to obtain adhesive materials for building cities.
The species planted by both sides are different, and the purposes are also different, but one thing is the same - the planting process is quite difficult.
The original owner Mark Watney can transform the habitation module into a space farm, but there is no problem in growing potatoes like this, but it is a big problem to plant a plant with a well-developed root system such as [Li Ping Tree].
[Li Ping Tree] can only be planted outside the habitat cabin to face the harsh environment of Mars.
The first is the temperature issue.
The average temperature on Mars is about minus 60 degrees Celsius.
In winter, near the poles of Mars, the temperature can be as low as minus 125 degrees Celsius.
In summer on Mars, the temperature near the equator may reach 20 degrees Celsius, but at night, the temperature may plummet to minus 73 degrees Celsius.
With such harsh temperatures, it’s no wonder that once Mark Watney’s space farm burst, all the potato seedlings were frozen into popsicles and shattered at the touch of a touch.
But the biggest difficulty is not this.
It's the microorganisms carefully protected in the space farm that were all exposed to the harsh environment of Mars and froze to death!
At this point, the male protagonist in the movie can no longer obtain a stable source of food through planting, forcing Mark Watney to think about a way to make a living.
[Li Ping Tree] If planted directly on Mars, not only would it be able to withstand it, but microorganisms would not be able to withstand it either!
Therefore, before Wu Siyuan planted the [Li Ping Tree], he first had to find a place where it could be insulated from the temperature.
If we were on Earth, we could do this by building a dome-like shield cabin.
But this is Mars.
When Wu Siyuan calls to place an order on Earth, it will take at least four years to receive it.
But with all the best in mind, Wu Siyuan estimates that he can only stay in this world for two or three years, and this time-travel journey will end with the end of the movie.
What's more, Wu Siyuan can't call back to Earth now.
The [Pathfinder], which can communicate with the earth briefly, is still buried in the yellow sand, and Wu Siyuan has no intention of digging it out.
He doesn't want to be exposed to American satellite surveillance so soon.
Fortunately, there is no way to customize a special dome shield from the earth, but Wu Siyuan can still solve the living environment problem of [Li Ping Tree].
Dig a hole!
To be precise, it is using the [Lava Pipes] on Mars!
This is a natural shelter on Mars!
Like the Earth, Mars also has geological movements and volcanic eruptions.
After a volcanic eruption, not only will a ferocious crater be left on the surface, but sometimes lava tubes will spread out around the crater during its formation.
During the flow of high-temperature, low-viscosity lava, the outer surface cools quickly and forms a solid hard shell. Under the heat preservation effect of this hard shell, the lava inside will continue to flow until the lava stops flowing.
After the lava in the hard shell is emptied, tubular caves are formed, which are lava tubes.
These lava pipes are hidden deep in the underground of Mars. When people come to Mars in the future, they will not need to spend a lot of materials to build protective walls. The thick rock layers of the pipes can withstand radiation, sandstorms, meteorites and other disasters.
Not only that, because the gravity of Mars is only equivalent to 38% of the gravity of the Earth, the lava pipes on Mars are also wider than those on the Earth - the width of the lava pipes on the Earth is 15 meters, while the width on Mars can exceed 160 meters.
It is enough for human habitation and is simply a natural refuge.
This was originally a residential area envisioned by earth scientists in the future Mars colonization plan.
But now, Wu Siyuan plans to transform these lava tubes, which may be 160 meters wide, as his planting base.
First, Wu Siyuan had to find the nearest lava tube.
Humans use detectors and rovers to search for holes and paths leading to underground lava pipes on Mars.
This is time-consuming and laborious.
But for Wu Siyuan, there is no need to be so troublesome!
He sat in the habitat cabin, closed his eyes, and his mind penetrated the habitat cabin and entered the ground, feeling the [pulsation of the earth]!
This is an innate ability he acquired and solidified in another world.
"Found it..." Not long after, Wu Siyuan's lips showed a smile.
With a thought in his mind, the ground one kilometer away from the habitat exploded violently, revealing a hole as big as two people.
The cave entrance is deep and deep, like the entrance to hell.
Wu Siyuan closed his eyes with satisfaction and fell into a dream on Mars.
The next day.
Wu Siyuan put on a light spacesuit, sat on the rover, and headed for the entrance of the cave that exploded last night.
When the rover is fully charged, it can travel 35 kilometers.
For it, a distance of one kilometer is just a stroll.
Wu Siyuan has no intention of going to the impact crater 3,200 kilometers away.
An hour later.
Wu Siyuan successfully arrived at the entrance of the cave he had made with his own hands.