In this way, it took several days for the Sky Hook to drag all the containers into space, and after the last container was hoisted away, Ouyang Ping let out a long sigh of relief: "It's finally over." ”

"Finished?" Ye Han's voice suddenly rose, "What you think is quite beautiful." ”

"Huh? And also? Ouyang Ping exclaimed.

"It's still early!" Ye Han looked very melancholy.

Ouyang Ping was very discouraged and asked unwillingly, "How many more?" ”

"Where do I know, when it's enough?" Ye Han said very irresponsibly.

Ye Han was right, early the next morning, a large group of aliens rushed to the base with giant insects, and each giant insect was stacked high on its back.

Everyone continues to receive, and after all the boxes are packed, they will notify the Sky Hook to be hoisted away.

That's it, I have to repeat it every few days, Ye Han is numb, I can't remember how many carbon fiber plants the Sky Hook has taken away, anyway, the aliens sent him to receive it, and if the container is not enough, he will keep up, the best thing to say is that it is getting more and more fulfilling day by day, and to be honest, he is tired and becomes a dead dog every day.

Finally one day, Ouyang Ping couldn't help but ask: "Boss, isn't it enough?" ”

Ye Han said: "More than 24,000 kilometers, do you say enough?" ”

Ganymede's gravitational pull is only 80% of that of the Earth, and its rotation speed is much faster than that of the Earth, so the synchronous orbit of Ganymede is much lower than that of the Earth, at only 24,000 kilometers, which is two-thirds the speed of the Earth.

In other words, the length of the cable required by Europa Zero must be more than 24,000 kilometers!

Belch? Why not 24,000 kilometers?

Because it is the center of gravity of the cable plus space station that is placed in the geosynchronous orbit, the position of the space station must be a little higher than the geosynchronous orbit so that it does not deviate.

Ouyang Ping's eyes straightened: "This has to receive the Year of the Monkey Ma Yue?" ”

Ye Han sighed helplessly: "When is enough, when is it counted!" ”

Ye Han's egg hurt very much, and he didn't have a good time in other aspects.

At present, the main function of Tianhe is no longer a space station, but a primary processing center for alien vines!

The Tiangou sent the container to Tianhe, and after receiving it, Tianhe first temporarily placed the container outside the space station, took the container in order, and took out the vines inside for preliminary treatment, removing the outer skin, unnecessary tissue, and excess water, leaving only a large handful of carbon nanofibers.

The conditions on the Tianhe are limited, so it can only be processed to this step, and after processing, it has to be repacked and transported back to Beiyuezhou, where the whole bundle of carbon nanofibers is broken up, and the nano-scale carbon nanotubes are extracted and re-woven into suitable carbon nanofiber cables.

The process was not as easy as expected, and in order to disperse the fiber bundles, Beidu and Washington worked together to build a batch of specialized equipment, and all the carbon fibers shipped back to Beiyue Zhou were processed by automated machinery.

However, even the most advanced equipment of human beings can only separate carbon nanotubes manually, and industrial production is not so precise at all, decomposing to the extent of dozens of carbon nanotubes.

However, such a level is enough, dozens of entangled carbon nanotubes are woven into cables, and then assisted by appropriate processing, the strength fully meets the needs of rail elevators.

The weaving of the cable is not smooth sailing, it is more than 24,000 kilometers, and the earth can be around the equator half a circle with a turn, and in order to ensure the strength, there can be no joints in the middle, which is said to be woven out?

After all, this is the first time that humans have built a rail elevator, and they can't wait to experiment with all the theoretical things - if the Resistance knows that humans are using them as experiments, they don't know how they will feel!

What's more troublesome is that the weaving speed is too slow, at the beginning, only a few kilometers a day can be knitted, at this speed, no more than ten or twenty years to complete.

Beidu and Washington conducted a very efficient emergency consultation, and immediately after the consultation, dozens of sets of processing equipment were added, and the weaving equipment was also improved accordingly, and after some efforts, the daily output was finally increased by a large section, reaching the level of 30 kilometers per day.

But 30 kilometers a day, and it takes more than 800 days to save more than 24,000 kilometers, which is a full two and a half years, and the Earth and the Resistance are willing to wait, but can Jupiter be able to settle down for so long?

And there is no point in continuing to add equipment, because 30 kilometers a day is the limit, and no amount of raw materials can keep up - in order to catch up with the schedule, even the earth's own carbon fiber is put in.

Fortunately, this thing is not a rope in the usual sense, and it is not the same thickness from beginning to end, the force of each position of the cable is different, the closer to the synchronous track, the stronger the force, so the newly woven cable is the widest and heaviest, and then it can be gradually tightened and tapered.

In order to get accurate data, Beidu and Washington used supercomputers to calculate several times, and then compared the data together, and it took a lot of effort to get the most accurate mechanical model.

The part that Beiyuezhou first weaved is the cable connecting the ground end in the atmosphere, this part is no worse than the section of the space station, so the weaving difficulty is relatively high, and after this section is weaved, the difficulty will gradually decrease, and the weaving speed will gradually increase.

In this way, there was an endless stream of ships traveling between Earth and Europa, and the high-density transportation continued until the beginning of June 2029.

The weaving task of Beiyuezhou lasted until the beginning of July, at the beginning of weaving, the completed cables were coiled in the crater on the ground of Beiyuezhou layer by layer, but as the project progressed, more and more cables were piled up, and once they were entangled, they could not be untied at all, and all the work was done in vain.

Later, Beidu simply used a spaceship to pull the cable into space, pulling it out from the moon, only a few hundred kilometers at the beginning, weaving a section and pulling a section, and finally pulling out more than 20,000 kilometers, dragging it behind the moon's butt like an ice-white tail - after strict surface treatment, the outer layer of the cable was glued with a thin layer of insect shell, so it looked faint ice white.

The Northern Metropolis and the Al Qaeda group also issued a joint statement, designating the vicinity of the cable as a no-fly zone, and no aircraft of any country are allowed to approach, otherwise it will not be discussed if they are shot down, and even the warships of the Beiyuezhou Fleet and the International Fleet must obtain permission from the joint command to get close.

On July 11, 2029, the last section of the cable was completed, and with the order of the Joint Command, the spacecraft that had been holding the cable immediately flew to Europa.

At this point, the rail elevator plan, which lasted for nearly ten months, has finally blossomed and is about to bear its first fruit.