Bright Sword starts with the grenade flat.

Chapter 276 Vegetable Greenhouse on Mars
The assembly of the prefabricated houses is very fast, because each prefabricated house is marked with a number in advance, and Liu Xiu has already led the astronauts through several assembly drills on Blue Star.

And they were wearing spacesuits for drills, so Liu Xiu and the others successfully built a 100-square-meter mobile model house before it got dark on Mars.

Of course, the house is not ready for move-in after it is built. It still needs to be inflated and pressure tested, and the equipment must be placed!
After all, the atmosphere of Mars is less than one percent of that of Blue Star. This kind of air pressure is better than that on Blue Star or even at an altitude of 30,000 meters.

After all, the air pressure at Blue Star's altitude of 30,000 meters is still 1,100 Pascals! Even on the surface of Mars, the air pressure is only 700 Pascals.

Therefore, if you want to live in a built Mars base without wearing a space suit, you will naturally have to increase the air pressure in the Mars base to the atmospheric pressure of the blue star.

Of course, in order to ensure that the base of the prefabricated house can withstand one atmospheric pressure, which is one hundred thousand Pa, and the pressure difference of one hundred thousand Pa, the prefab house will not deform under the pressure difference of one hundred thousand Pa. Liu Xiu's prefab house directly uses a Centimeter-thick high-strength aluminum is used as the construction material of this prefab house.

Of course, only the main room of this Mars base has this treatment.

As for the remaining cultivation cabins, they did not receive these benefits. In order to be able to carry more supplies under a limited weight and build more Mars cultivation cabins, Liu Xiu exhausted his brains in terms of building materials.

First of all, it is naturally impossible to carry steel materials. After all, steel materials are 2.8 times denser than aluminum materials.

After being treated to increase the strength of aluminum alloy, its strength can also match that of steel. However, aluminum alloy materials are not resistant to high temperatures, so high-speed fighter aircraft are made of titanium alloy.

After half an hour of air-tightness experiments, Liu Xiu and the others moved two multi-functional gas machines into the prefabricated room, and then installed solar power panels on the roof and a device used to communicate with the space station in Mars synchronous orbit. After the satellite dish, it was time to rest.

Besides, even if the astronauts brought by Liu Xiu are all martial arts masters, working in spacesuits that are bulky, not breathable, and don't have that good heat dissipation effect is still very tiring.

There was no way. After all, the energy storage of the lithium battery he brought was limited. It was impossible to work overtime unscrupulously at night, so he could only rest.

After sleeping for a day in the newly constructed Martian prefabricated room, Liu Xiu felt very good. Although the gravity still did not reach the weight of the Blue Star, it was much better than the microgravity cabin in the space station.

However, this situation will last for more than a year at most. After all, Liu Xiu and the others will return to Blue Star during the next Mars window period, so the space will naturally become larger.

Naturally, you need to rest to restore your physical strength. After all, martial arts training is not like cultivating immortals. You can work without sleep for several months.

However, including Liu Xiu, there are a total of nineteen people in this base. But if one person is arranged to stand guard, the number will naturally be eighteen. Although the indoor space monitoring equipment already has air pressure detection and gas monitoring, for the sake of safety, it is still One person is required to take turns on duty.

To be honest, nineteen people living in a house of one hundred square meters is indeed a bit crowded. In order to leave enough space for other equipment, eighteen beds are put in a room of ten square meters, and Unlike the bunk beds in ordinary dormitories, the bunk beds in this Mars mobile room are three-decker beds, with six on one floor, so naturally there are eighteen beds.

After all, although the microgravity simulation cabin on the space station can use the centrifugal force of rotation to simulate gravity, due to conditions, the simulated gravity can only reach one percent of that of the Blue Star, so people will not float while falling asleep.

Moreover, the down-to-earth feeling of activities on Mars is also very good, especially when taking a shower and going to the toilet.

Therefore, life in the space station cannot be compared with now. Of course, if the gravity problem during space travel can be solved, then life in the universe will actually be no different from the ground. There are only two ways to solve this problem. , the first one is to build a larger space station and completely simulate gravity through a larger centrifugal device, while the second one is to create artificial gravity. After a good night's rest, Liu Xiu and the others had a very heavy construction task the next day, which was to build a Mars greenhouse.

That's right, it's the kind of combination that can grow off-season vegetables that is very common on Blue Star.

In fact, Liu Xiu originally planned to bring glass to build a sunroom-type glass greenhouse to grow vegetables and plants.

But it is best to think that it is not cost-effective to use glass to build a plant greenhouse, and it is still very uneconomical.

No way, Liu Xiu naturally thought of using the method of building vegetable greenhouses to build vegetable greenhouses on Mars.

You must know that in order to allow Perylene to eat fresh vegetables in winter, Liu Xiu actively imitated it after the polyethylene film was first invented in 1969.

And under Liu Xiu's suggestion, it also began to be actively promoted by Yu Fang in Tsuen Tuk.

Of course, the film on Liu Xiu's side is not as thin as the film on Blue Star. You must know that the greenhouse film on Blue Star is only 0.1 mm thick, and the greenhouse on Mars is not only to insulate the temperature, but also has to contend with an atmospheric pressure. , to ensure that it will not be torn under an atmospheric pressure difference.

Therefore, the thickness of the film here is one millimeter, which is thicker than ordinary mineral water bottles.

And more importantly, the density of polyethylene is only 0.9, which is 2.7 times lighter than the 2.5 of glass. Its pressure resistance is also better than that of glass. If glass wants to withstand a pressure difference of one atmosphere, it must at least do to five millimeters, but one millimeter is enough for polyethylene.

Calculated in this way, even if a double-layer insulated greenhouse is built, it is enough to build five times the area under the same weight.

Of course, glass greenhouses also have many disadvantages compared to polyethylene greenhouses. One of the biggest disadvantages is that polyethylene is not as resistant to aging as glass.

The service life of a greenhouse built with glass can reach fifty years or even a hundred years. As long as the glass is not broken, the service life can be basically extended indefinitely.

The service life of polyethylene greenhouses is only five to ten years. Although Liu Xiu's one is a thickened one, its service life will not exceed twenty years.

Of course, Liu Xiu had already considered this situation, so Liu Xiu brought a lot of equipment with him during his trip to Mars. In addition to mineral processing equipment, there was also glass manufacturing equipment. After all, there are a lot of materials on Mars. Yes, as long as it can be processed, there is no need to worry about insufficient raw materials.

After all, Mars at this stage belongs to Liu Xiu and the others. Unlike on Blue Star, there is not enough copper material to make bullets, so they have to make steel-cased bullets instead.

And this is the benefit of interstellar exploration. Sometimes the scarcity of materials on the Blue Star does not mean that the materials are scarce on other planets.

Liu Xiu remembered that before the time travel, astronomers discovered an asteroid in the asteroid belt, and it was named Lingshen.

(End of this chapter)