Tower Defense Strategy

After the death scepter construction process started, country R launched a manned rocket as support.

The problem of country R’s stubbornness will not be repeated. Their manned rocket can carry up to three people. The interface specifications have been modified according to country C standards and will be docked with the old space station.

Only two people were taken this time. Three months later, together with an R country astronaut on the old space station, three people and two hundred kilograms of unusable garbage will be returned to the ground.

When it comes to rubbish, there have been some discussions between the C National Academy of Sciences and the Aerospace Department recently.

The previously used garbage collection method used the cargo supply bay to bring the garbage back by the way when it returned. According to the previous space station functions, there was no problem.

After the emergence of the space station in the future, the situation has changed.

In the future, the space station will inevitably mine asteroid resources, and garbage and ore waste must have a place to go. The weight of these things will far exceed the carrying capacity of the cargo cabin.

Directly use adhesives to stick these things together and throw them into the atmosphere at the lowest cost, and because of the adhesion, once they enter the atmosphere, they will be scattered and burned clean without falling to the surface.

However, this method has a strange dust risk. The adhesive loses its viscosity prematurely, causing a part of the fine powder and small particles to be bounced back into orbit by the thin atmosphere, which may form something similar to a planetary ring over time.

Of course, there is no need to wait until the planetary ring stage. As long as small particles and dust are thrown away, they will pose a threat to artificial satellites in low-Earth orbit. After a certain density is formed, they can even affect the satellite's signal.

In an attitude of being responsible to the parent planet, the most economical solution will naturally not be used.

The second option is to throw it on the ground, but this time it is necessary to pack it, and directly produce the trash can shell on the future space station, and put the trash into it and throw it on the ground.

The cost of this solution is almost negligible. The use of a thin aluminum shell and the electromagnetic ejection method will not even incur delivery costs, only the consumption of the aluminum shell. If the asteroid contains too low aluminum, use a steel shell.

Aluminum shell is the preferred option in this scheme. The problem with steel shell is that the melting point is too high and the frequency of delivery is high. There is a certain chance that it will directly hit the ground.

Option three is to lose to the moon.

There is no doubt that compared to throwing it back into the atmosphere, the cost of throwing to the moon is quite high, and at first glance it is even completely unreasonable.

The reason for this proposal of the Academy of Sciences is to contribute to the lunar base.

Human beings want to get involved in the universe, rather than just littering small experimental garbage (rovers, exploration satellites) in space. The development of the moon is an inevitable step, because only there can there be almost unlimited iron resources relative to asteroids. It avoids the launch troubles caused by the atmosphere of the parent star, and the difficulty of development is much lower than that of selecting and towing asteroids again and again, but the initial investment is particularly large, and the processing and production capacity to achieve is exaggerated than the current future space station.

In low-Earth orbit, a propulsion unit with the same weight as the load or slightly more than one or two percent can deliver goods to the orbit around the moon. Furthermore, a 100-ton vehicle (including the load) can deliver about thirty-five Tons of up and down supplies to the surface of the moon.

After having the processing capacity of the future space station, throwing goods from the surface to the moon in one go is obviously not the most scientific path.

The lunar **** plan, in fact, is also taking the ground of throwing rubbish, by the way, the slag, which can be transformed into the shell of the cabin, is sent to the moon.

Slag is very useful, but the location of the future space station is not suitable for use. If it is the surface of the moon, it can be used to make high-performance concrete!

According to Plan 2 and Plan 3, the space station in the future will also need garbage sorting capabilities. This easy job on the surface has become much more difficult to put in orbit. Scientists are trying to find a way.

Back to the space station.

The countries in West Central Continent discovered that Country F was sneaking away. They were thrown aside and expressed dissatisfaction. They also decided to vote for the future space station. It would be great if they could buy a few more tickets in the future.

This investment is to support an icy asteroid.

In space, icy asteroids are affected by the solar wind, and the light effect produced by them far exceeds that of iron asteroids. Therefore, the observation ability of the earth ball can detect smaller icy asteroids at greater distances.

3147 Drew Alpha is an icy asteroid with only 800 tons. The wonderful thing is that it is about to fly through the upper atmosphere, its weight will be reduced by one more, and its speed and orbit will also change.

Changes in speed and trajectory will increase the difficulty of the pursuit, but compared to the previous country C getting a thousand tons of stuff from the middle orbit, it will still be easier because the orbit is low enough when it just flies through the atmosphere.

But here comes the problem.

Although Xizhongzhou’s industry is hollowed out, although it still has a good production capacity, there will often be a word for temporary production of things outside the system: postponement.

The asteroid is waiting for no one. The 3147 Drew Alpha Country is this time, even if it is successfully captured by the Earth-Moon system, it is not known when it will return to the appropriate orbital altitude next time. Even this time, the appropriate capture window will not exceed forty minutes, and the possibility of delay is absolutely unbearable.

It just so happens that country C has actually captured an asteroid, so after providing the orbital information of the asteroid, West Central Continent pays the money and country C does the work.

In fact, money is now useless in international trade, so these investments will eventually be transformed into resources and goods, which will be sent to Country C via several transcontinental railways.

After human beings are forced to a corner, the tendency to cooperate has finally become more obvious. Country C welcomes this.

3147 Drew α and the previously captured iron asteroids are expected to converge with the future space station in an orbit of 300 to 400 kilometers. The specific altitude depends on the energy of State C during this period. In time, how far will the electromagnetic orbit launch system be improved?

The higher the orbit, the higher the cost of ground transportation, but it will be easier to catch asteroids, and at the same time, it will be less affected by rare atmospheric particles, which will help improve the performance of new materials.

The main task now is death scepter.

In order to build this thing faster and better, in late July, country C launched another temporary manned spacecraft and sent two engineers-two academicians!

C State-owned two academies, the Academy of Sciences, the Academy of Engineering, and the Academy of Engineering have done a lot of things in recent years, such as academicians of tobacco and academicians of liquor, although some of them just mention a name and no follow-up, it is really embarrassing and fearful. Then make some strange tunes such as academician Luoshifen.

But decent academicians are still the leader among the R&D personnel in this country.

The two academicians who were sent up for the construction of the Death Scepter were both over fifty years old. In order to take care of their bodies, they even adjusted the launch procedures. The price was that the spacecraft only carried ten kilograms of individuals except for the two of them. Articles and dozens of kilograms of oxygen-generating powder arrived with no other supplies.

The main structure of the death scepter has been completed at this time, but it is still cooling. There is not so much liquid in space to cool down. Even a drop of water is much more valuable than equal weight silver.

The cooling technology used in the space station is a supporting facility in a zero-gravity factory. It is a kind of power recovery system. Simply put, it is similar to the principle of solar water heaters for civilian use on the ground. It uses thermal radiation energy to boil water to generate electricity. The root of modern civilization in the world.

When the temperature drops to a certain level, after the device is solidified, the cooling system can directly stick to the device to achieve rapid cooling.

The whole process takes several days.

If the technical strength of the soil ball is higher, the atomization cooling zone can be used to achieve a faster cooling. At the same time, it can also have the function of quenching liquid to expand the use of the same substrate.

Now only the basic functions can be used.

During the cooling phase of the main structure, the two academicians could not take a break when they came up, so they hurriedly gathered people to do the preliminary work.

The so-called specialization in the art industry, these people in the new and old space stations came early, even if they could get access to the death scepter information, they could not touch the ground day by day, and they didn't have the time to study in depth.

And it has already completed the prototype assembly on the surface, the prototype is not in vain, and what happens to the sky in the future, the prototype is the best reference for solving the problem.

In order to facilitate transportation and take into account the difficulty of assembly, the prefabricated modules of the Death Scepter have more than one hundred large and small modules, and do not include the propulsion group that sends it to the synchronous track.

In fact, these more than one hundred pieces can be spliced ​​into only ten pieces before being connected to the main structure!

After reaching this step, part of the quality inspection work can be carried out in advance.

The academician is bringing everyone to do this, which can save a lot of time.

So after the main structure cools down within two days, it enters the stage of power-on detection of the whole system. At the same time, the propulsion group is also assembled nearby.

By the way, these tasks are all done on the workbench of the future space station.

The main body of the "workbench" is a truss structure...It is a rectangular metal frame, which looks like a net from a distance. There are several movable panels with a total area of ​​400 square meters, which can be erected to protect the body of the future space station when necessary. There are several robotic arms on the outer side, and the death scepter is assembled with the help of the robotic arms.

The source of the workbench is what everyone reacted before. When things are not fixed, they will always be stressed when they are being processed. Now most of the parts are hidden in the small electromagnetic device in the cargo box and fixed on the workbench~www.wuxiaspot.com~ to facilitate the next operation. At the same time, this kind of cargo with a small electromagnetic device Boxes are also easier to transport between the two space stations than the earlier cargo boxes, that is, they always need to change the battery.

On the penultimate day of July, the Death Scepter passed the manual inspection, the live self-inspection passed, and the advancement group inspection passed.

Ready to lift off.

Launching from a low orbit to a synchronous orbit is not as elaborate as on the surface. Depending on the choice of routes, it can be said that it is a launch window anytime and anywhere. Even more strict windows are more than 80 minutes. Even before launching, all solar panels can be installed. Unfold.

The robotic arm poses (direction) to it and releases it.

After the ignition is accelerated, the flame is turned off, waiting to reach the apogee, which is directly above the southeast region of Country C.

Do a Homan transfer maneuver to change the orbit from an ellipse to a circle to achieve a relatively static state.

...It's over, it's as simple as that, and there are no extra operations such as segmentation in the whole process.

The death scepter was in place a few days earlier than originally planned, and several rounds of actual testing will be carried out before the appearance of the electric light.