285 Expansion

At the same time, the Moon Palace Base also immediately began to expand significantly.

In fact, in the past three years, the base has never stopped expanding. The area has expanded from the initial building of several thousand square meters to the current 30,000 square meters.

However, of the 30,000 square meters, the part that was later added was less than one percent of the original base volume. Naturally, this is because most of the rooms in the base have been expanded.

Space expansion is a very advanced technology, which requires multiple talisman formations to be carved on each wall. There are also certain requirements for materials that can support the expanded space and prevent it from collapsing again.

At that time, it was specially made to allow the base to carry as much supplies as possible and plant those plants when leaving Blue Star.

After arriving at the moon, there is no need to fly from the Moon Palace Base again, and the land on the moon is almost unlimited, so naturally there is no need for space expansion.

The minerals on the moon are far easier to mine than those on the Blue Star. It is basically a barren virgin land. If you just walk around, you may pick up a piece of iron, and even the amount of gold and silver is quite large.

Obviously, it is impossible to build reinforced concrete buildings on the moon, because the vacuum environment on the moon will cause the moisture in the concrete to boil and evaporate immediately, thus forming a large number of holes inside. Steel bars have almost no support at all.

Therefore, on the moon, metal is the first choice to serve as the skeleton and skin of buildings, especially after the base can easily smelt metal.

The multi-layer sandwich air glue building skin coated with high-strength weather-resistant sealant is firmly fixed on the metal frame by bolts. Just like building a prefabricated house, a large base factory building can be built quickly.

Then all the contact parts are welded together using vacuum low-temperature laser welding technology, which can meet the sealing performance of the building in vacuum.

In fact, even if welding is not done immediately, over time, the metals with smooth surfaces will stick to each other or even fuse together.

For these buildings, Yang Qing's requirements are that they are strong and durable and have the best thermal insulation and sealing performance to avoid wastage of air.

On the moon, waste of energy is nothing. The expansion of solar panels every day has long made the moon's energy squandered to the point of inexhaustible waste.

During the day of each moon, a large amount of solar energy is stored for use by the base at night.

Although controllable nuclear fusion reactors have been under construction, they are only used to supplement metal smelting and occasional energy shortages in industrial production.

As the core of the solar system and the largest natural fusion reactor, the energy of the sun can be said to be endless. What humans use is only one 2.2 billionth of it, which is as high as 1.49 times e 22 Joules.

It can be said that as long as the energy of the sun is utilized, it will be tens of thousands of times more powerful than all the energy currently used by humans.

That's why we have the Dyson ring, a structure like the Dyson sphere that surrounds the sun and uses solar energy.

However, this device actually has a fallacy. The sun occupies 99% of the mass of the entire solar system, and the remaining eight planets, dwarf planets, and asteroids account for less than 1%.

Even if all materials are used, it will be difficult to complete the construction of the Dyson sphere.

Therefore, the first necessary condition for building a Dyson ring is to be able to easily obtain materials from outer galaxies, and there are more than one, because other planets are similar to the solar system. Stars occupy the vast majority of the mass, and only those planets can be used.

However, being able to easily travel to other galaxies and take away the power of planets, the use of energy is far beyond what Yang Qing can compare with now. It seems that he should look down on low-mass energy bodies like stars.

Of course, building a Dyson sphere is also an unattainable dream for Yang Qing, but point-shaped space stations with low requirements that revolve around the sun may be built in the future.

Because Yang Qing has an energy storage material that is completely different from Blue Star Battery, Lingshi.

Although the ability of primary spiritual stones to store energy is not very high, the energy contained in intermediate spiritual stones is several energy levels higher than that of primary spiritual stones.

As the operation to add weight to Mars begins, a large number of asteroids must be found.

When an asteroid is found, its mineral resources will also be scanned. Just like the gold or platinum asteroid that was glimpsed in the asteroid belt, naturally it cannot be simply thrown to Mars.

In fact, as a high-density metal at the bottom of the periodic table of elements, platinum has great uses.

Lead, as the main component of spiritual energy isolation materials, is actually somewhat unqualified.

Because lead is too soft and has extremely reactive chemical properties, it can easily cause pollution.

In fact, gold has the same characteristics as gold, but there is too little of it on Blue Star. Even the reserves on the moon are not considered rich.

The isolation aura formula based on gold has been successfully tested on Blue Star, but it is relatively easy for a person to purchase dozens or even hundreds of kilograms of gold.

But when this number rises to one ton or two tons, it is not so easy.

Not to mention whether Yang Qing had that much money at the time, after all, the price of a ton of gold was only about 300 million yuan.

The main thing is that gold has always been a symbol of currency. Before the middle of the last century, gold was a reserve for currency issuance. It was not until the collapse of the Bollington Woods system in the United States that it began to be decoupled from gold.

If you buy too much of this thing privately, you will face the trouble of being investigated, and Yang Qing is the most afraid of trouble, so he took a step back and used lead on the Moon Palace Base. Of course, the lead is within the bulkhead. There will be no direct contact with the interior.

The same elements that are scarce on the moon and blue stars will not be so scarce in the universe. By then, intermediate spiritual stones may be as common as primary spiritual stones.

This is Yang Qing's confidence in preparing to develop the sun, but all this will eventually take a back seat to the Mars plan.

Finding raw materials for refining intermediate spiritual stones is just a side trip, the purpose is to gain weight for Mars.

For this purpose, the substantial expansion of the Moon Palace Base became a matter of course.

Although the surface of the moon is in a vacuum state, which may be cleaner than the dust-free workshop on Blue Star, those robots and spacecraft components cannot be produced in the open air, so a large area of ​​factories was built immediately.

Because the moon has a relatively small gravity, these buildings are multi-story, with a height of more than 100 meters, divided into 20 floors, and a five-meter high frame. In addition to not being so friendly to the residents, other aspects, such as industrial and agricultural production, , there is enough space, and the upper level can even carry some relatively tall tree-type fruit trees.

Another advantage of being on the moon is that there is no air, so there is no need to consider the influence of air convection. As long as it can avoid collapse in the face of moonquakes that are generally not high in level, there is no danger.

Therefore, among the buildings on the moon, the bottom floor generally occupies a large area, and then there are the high-rise buildings that face the sky.

The internal metal frames of the building are made of iron alloy, which is the easiest to find on the moon. Although its temperature range is still slightly worse than that of titanium alloy, in terms of strength, it is not inferior to it.

After all, it is not an iron alloy used for spaceships, and it is not exposed to the outside for a long time. Until the building is abandoned, a nearly constant temperature will be maintained inside the building.