The last human in the universe

103 Squeeze
Although when the supply of meat resumed, in order to ensure that people's stomachs would not have problems, these meats were supplied in limited quantities, but in the past few days, the major hospitals were still full.There are people with diarrhea and abdominal pain everywhere.

There is no way.I haven't eaten so much meat for several years, and I ate more if I didn't pay attention.

After solving the problem of food and meat, Cheng Xuanjia finally breathed a sigh of relief.

Seeing the weak, sallow and thin faces of the people one by one, he felt uncomfortable.The most important thing is that without enough nutritional supplements, people will not have much energy and spirit in the follow-up construction.

I can't ask everyone to be like the original leader Zhao Changxing, who can eat starch paste and do heavy physical labor at the same time.That's not realistic.

Now that the biggest problem is solved, the next step of construction can begin.

So, except for those who had to stay on the Voyager spacecraft, such as teachers, minors, and spacecraft maintenance personnel, there were more than [-] people left, all of whom rushed to the front line of construction. .

Under the premise of increasing the degree of automation as much as possible and replacing manpower with robots as much as possible, people's construction actions have shown a trend of triumphant progress.

Railways appeared on the surface of Ganymede, factories sprang up, fusion power plants began to transmit electric energy, and mining bases began to produce huge amounts of ore.

The steel mill spewed thick smoke day and night, countless trains were running on the rails, and numerous spaceships shuttled frequently between the spaceships and the ground base.A scene of prosperity and prosperity on the originally desolate surface of Ganymede.

Among all these constructions, Cheng Xuanjia paid the most attention to the construction of the No. [-] electromagnetic rail gun located in space.

Electromagnetic rail guns can be located on the surface of the planet, and of course they can be located in space.Anyway, their function is the same, that is to speed up the standard resource box.

In Cheng Xuanjia's plan, the way the Jupiter system sends resources to Sedna is not like other dwarf planets, sending materials directly from the surface.

Jupiter is too far away from Sedna, and the standard resource boxes sent must have extremely high speed.And this means that the power of the electromagnetic railgun must be as large as possible.

Moreover, in the later stage of planning, all four Galileo satellites will usher in "land reclamation" and be included in the task of supplying resources to human civilization.Even in the further future, the remaining satellites smaller than Sedna will also be included in this system.

Maybe one day in the future, people will go directly into the atmosphere of Jupiter to mine resources.

If it is launched directly from the surface of the planet like other dwarf planets, then at least one electromagnetic railgun with such a huge power needs to be built on each planet.Obviously this would be a huge waste.

Therefore, in the planning, Cheng Xuanjia decided to build No. [-], the main electromagnetic railgun, in space, and only build small and medium-sized electromagnetic railguns with lower power on the surface of the planet.

Therefore, the complete system will become like this: Regardless of Ganymede or other planets, the resources mined on all planets will first be launched to the resource transfer base through small and medium-sized electromagnetic railguns, and then The No. [-] electromagnetic railgun here at the resource transfer base will send them to Sedna.

With one more transit node, the construction task will be greatly reduced, but the efficiency will be improved instead.

At this moment, it is too early to talk about the construction of the main electromagnetic railgun No. [-].This requires people to first complete the No. [-] electromagnetic railgun on the surface of Ganymede.Only by completing it first can it transport the building materials needed to build the main electromagnetic railgun into space.

This task was completed in the fourth year after Ganymede descended.

At this time, the supporting factories have almost completed.Various mining bases, steel mills, copper factories, foundries, precision processing plants, etc. are all in place.The construction of standard resource boxes is also on the right track.

As a result, standard resource boxes full of materials were launched into space one after another.Numerous space workers wearing spacesuits started processing and assembling directly in space, and it took another four years to complete the construction of the main electromagnetic railgun.

This main electromagnetic railgun is not so much a railgun as it is a complete base.

It consists of three main parts in total.The first part is the material transfer center, which is mainly responsible for receiving standard resource boxes launched from other places and transferring them to the main electromagnetic railgun launch cabin.The second part is a large fusion power plant.

The energy consumption of the main electromagnetic railgun is too high, and a very high-power fusion power plant must be built to support its operation.

The third part is the electromagnetic rail gun itself.

These three parts are connected together to create this giant space base.

It's even longer than Voyager.The length of the Voyager spacecraft is 7 kilometers, and its length is as high as 20 kilometers.

Of course, most of the 20 kilometers is the length of the electromagnetic rail gun barrel.

On the whole, its shape is like a long, straight strip extending from a big iron ball.

The material transfer center, fusion power plant, transfer warehouse, personnel living quarters, etc. are all in that big iron ball.

At this moment, almost 9 years have passed since the Voyager spacecraft entered orbit.During these years, some people died unfortunately due to accidents, and some people suffered from diseases that even genetic modification instruments could not do anything due to various disasters or their own reasons, so they could only wait in the recuperation area of ​​the Voyager spacecraft. There are also many people who have found their lifelong lovers here, and gave birth to the crystallization of love.

Some people come, some people go.The life of the people here in the Jupiter system and the life of the people on the Sedna planet all follow the same trajectory.

Just today, the development of the Jupiter system ushered in a critical node.

Cheng Xuanjia has decided to send back the first batch of supplies to Sedna Star today, 17 years after leaving Sedna Star and embarking on this voyage.

1000 individual standard resource boxes with a total mass of 1000 tons, each containing 850 tons of materials inside, have been prepared, and have been transferred to the launch cabin of the main electromagnetic railgun base at this moment.

Among these materials, there are special steels, copper materials, water ice, chemical raw materials, gold and silver, and elements such as manganese, gallium, and indium.

The first standard resource box has started sending.

Amidst the low hum, the speed of this standard resource box immediately began to increase.When it finally rushed out of the 20-kilometer-long barrel, its speed had been increased to a high speed of 7 kilometers per second relative to Ganymede.

At the moment it rushed out of the barrel, the people in the main electromagnetic railgun base felt a slight vibration of the base under their feet.

The process of launching a standard resource box from an electromagnetic railgun can also be compared to the process of injecting working fluid from a spacecraft engine to provide reverse thrust for itself.The difference is that all the electromagnetic railguns in the past were built on the surface of the planet. This force was "digested" by the huge planet and would not cause any visible impact on the outside world.

But here is space.Nothing can absorb this reverse thrust.

If no measures are taken, the electromagnetic railgun base that launches at the rate of one standard resource box every 5 seconds is equivalent to a spaceship that ejects 5 tons of working fluid every 1000 seconds, and it will be pushed away by this reverse thrust sooner or later.

Therefore, people built a huge ion thruster on the "big iron ball" of the main electromagnetic railgun base, and it was always activated, applying acceleration to the base at all times.

In this way, the act of launching a standard resource box essentially achieves the effect of decelerating the base in this direction, while the rear ion thruster achieves the effect of acceleration. The effects of the two sides cancel each other out, and the electromagnetic railgun can be launched. The base stays in the orbit around Ganymede for a long time and stably.

It is because of the structural materials of the electromagnetic railgun base itself.They must be constantly squeezed from both directions.If it can't bear it, the whole base will be crushed.

Of course, people will always pay attention to the stress and pressure data on the main structure of the base to ensure that this kind of thing does not happen.

At this moment, the first standard resource box has been launched. 5 seconds later, the second standard resource box was also launched.Then the third, the fourth...

1000 standard resource boxes, with a total mass of 100 million tons, took less than one and a half hours to complete the launch.

This is just the data that has not been debugged to the best state in the early stage.When it matures in the future, people can even achieve the efficiency of launching a standard resource box every 1 second.

By that time, a full 8640 million tons of supplies can be sent in one day at full power.

No matter how you look at it, this is an extremely large sum of money.enough to support the development of human civilization.

At this moment, the standard resource box that left the electromagnetic railgun has acquired an initial velocity of 7 kilometers per second.

Calculated at this speed, it will take about 70 years to reach the human civilization on Sedna from the Jupiter system.

This length of time is clearly unacceptable.

In fact, each standard resource box is equipped with 6 small ion thrusters, and it also has a small fusion battery and corresponding working fluid inside.In the follow-up, they will start to accelerate again, and start to decelerate before reaching Sedna Star, and finally they can still be parked in the orbit around Sedna Star.

In this case, the entire voyage will be shortened to 20 years.

This length of time is probably acceptable.

At this moment, the people who completed the first batch of launches are rejoicing, and truly feel the contribution they have made to civilization.But on the Sedna star, which is more than 100 billion kilometers away, people have fallen into a gloomy and gloomy atmosphere.

(End of this chapter)