In Xiao Yu's plan, the "county"-class spacecraft has a minimum weight of 100,000 tons and a length of at least 500 meters. Xiao Yu weighed his raw material reserves, and after comprehensive calculations, planned to build a 30-year-old spaceship.
The 10,000-ton "County"-class spaceship serves as his flagship. The remaining two might as well be slightly smaller and built into the 200,000-ton class.
Such a large spacecraft can no longer be built from the ground. It is simply because it is too large and has too much mass. After it is built, with Xiao Yu's current level of technology, it will not be able to take off from the ground. If it insists on taking off from the ground.
, the spacecraft's hull may be severely damaged.
If only the hull is damaged, it is still good. If it is replaced by a million-ton "city"-class spacecraft, or a 10-million-ton "provincial" class spacecraft, after it is completed, it will not be able to be in the vicinity of a massive star.
Within the Roche limit, otherwise, it will be completely torn apart by the gravity of the star.
Although Xiao Yu's spaceship is made of the strongest and toughest materials, it is hollow. Except for the outer shell, most of the interior is space. Overall, the density of the spacecraft is not even comparable to water.
The so-called Roche limit refers to the limit distance at which a rigid body or fluid can fly around a massive star without being torn apart by its gravity. Taking the earth as an example, with Xiao Yu’s current level of technology, a 10-million-ton ship
If a "provincial"-class spacecraft is within 20,000 kilometers from the earth, it will be torn into pieces by the earth's gravity because of the imbalance of the earth's gravity on all parts of the spacecraft's hull. The artificial satellites launched by humans in the past were not torn into pieces.
The reason is that they are too small and the materials are tough.
In science fiction movies, huge alien spaceships take off and land vertically from the earth, coming and going freely. It is certain that they are civilizations that have mastered anti-gravity technology. Otherwise, judging from such a huge hull, they would not be able to do it at all.
to this point.
With Xiao Yu's current technology, he is still a little short of mastering anti-gravity technology.
Although there is no way to build a "county"-class spacecraft from the ground, Xiao Yu found a solution early on, which is to build a dock in a synchronous orbit two thousand kilometers away from Titan in order to build a "county"-class spacecraft.
But in this case, the transportation of materials has become a big problem. Currently, there are only two spacecrafts, Hope and Dawn, that have the ability to shuttle in space. However, compared to building a "county" class spacecraft, it often requires hundreds of thousands of
Calculated in tons of materials, the transportation capabilities of these two spacecraft are still a bit weak.
At this time, the Materials Technology Research Institute established in advance came in handy. During this period of time, Xiao Yu has developed a new type of nano-polymer material whose strength is at least a hundred times stronger than steel.
Xiao Yu named this material "Rope of Life" and he planned to use this material to make a space elevator.
Xiao Yu dispatched a large army of robots to dig a large pit several hundred meters deep on Titan's equator, and buried a metal block weighing at least several thousand tons in this large pit.
Then he steered the Hope to two thousand kilometers above the crater (Note 1) and hovered there.
Then, a milky-white rope-like object stretched out from under the Hope. This thing is the highest embodiment of Xiao Yu's material technology, the rope of life. The rope of life with a radius of one millimeter can withstand a maximum pulling force of nearly ten tons. This
One can imagine the toughness of this material.
The radius of the rope of life extending below the Hope is a full two centimeters. According to estimates, this rope of life can withstand a pulling force of nearly 4,000 tons.
A small nuclear fusion engine is installed at one end of this rope of life. After the engine is started, it will continue to pull it down towards Titan. The rope does not end until it is pulled out for ten kilometers.
A small nuclear fusion engine is also installed at the other end of the rope of life. These two nuclear fusion engines fix the ten-kilometer-long rope of life in the air and slowly rotate together with Titan's rotation.
Then the Hope returned, reinstalled a life rope, and returned to its original location. After connecting one end of the new life rope to the original one, the life rope continued to move under the action of the nuclear fusion engine.
Explore.
After going back and forth for more than two hundred times, one end of this rope of life was connected to the pre-dug hole on Titan. Xiao Yu fixed it on the big metal block, and then controlled the robot to move the big metal block.
Buried. The other end is in space, fixed on another large metal block by the Nozomi.
In this way, a simple space elevator is completed.
The principle of this space elevator is very simple. When the speed of an object exceeds the second cosmic speed of the star, it will fly away from the star and never come back. And the space end of this space elevator has
The movement speed has exceeded Titan's second cosmic speed, but it is fixed by the rope of life. Of course, it will generate an upward pulling force to straighten the rope of life.
And because Titan has its own rotation, through the rope of life, Titan will continue to accelerate the large metal block at the space end of the rope of life, so that its speed is always maintained at the speed of escape and will never fall.
.
The most wonderful thing is that at the space end of the rope of life, there is a force similar to gravity due to centrifugal force. In this way, when processing and building the hull, you don't have to suffer from weightlessness and inconvenient construction.
To put it simply, the principle of the space elevator is like a person throwing a large iron chain with an iron ball on the top. The iron ball wants to fly, but is fixed by the iron chain and cannot fly away. Instead, it will straighten the iron chain.
.
In this way, Xiao Yu can use this rope of life that will never fall to continuously transport supplies into space. Xiao Yu can even make a pulley to pull supplies into space from the ground.
Go in.
Of course, that was after the space elevator was completely built. The current space elevator is just beginning to take shape.
In the next few months, Xiao Yu carried out a lot of processing on this space elevator, including strengthening and thickening the rope of life, thickening its diameter to one decimeter, and installing a large number of equipment on it.
A large number of robots were stationed at the space end of the space elevator and construction of the dock began.
It took Xiao Yu half a year to build this space elevator. While building this space elevator, Xiao Yu started construction of the other two space elevators. When the first space elevator was completed, the other two
A space elevator has also entered an advanced stage of construction.
There are three space elevators in total, providing Xiao Yu with strong material transportation capabilities. On the ground, countless special steels, special materials, various built components, and various types of robots were transported up one by one for the space dock.
for construction consumption.
At the same time, construction on the ground base has also begun in full swing. In addition to the original base, Xiao Yu has started construction of three more bases. Several major ground bases are fully engaged in the construction of "village" and "township" class spacecraft at the same time. In space,
The three shipyards are fully engaged in building "county" class spacecraft.
All kinds of materials were used up like running water, and what they got back were three large docks, enough to build a 300,000-ton spaceship, and hundreds of "village" class ships neatly placed on the ground.
spaceships and dozens of "township"-class spacecrafts, the smallest of which is as big as the Hope.
While the "county"-level spacecraft was being built, Xiao Yu controlled all the hundreds of "village"-level spacecraft to fly to Saturn, and was fully engaged in the work of stockpiling supplies. After all, after leaving the solar system, Xiao Yu would no longer have
It’s time to replenish even a piece of scrap metal.
While going all out to build the spacecraft, the construction of a new generation of photon computers has also been put on the agenda. During this period, Xiao Yu has updated research results on the architecture of photon computers, as well as computing modes, instruction sets, etc. It is expected that after the new computer is completed,
Xiao Yu's computing power can be increased five times on the original basis. In this way, while controlling more than a thousand spacecraft in the entire fleet, Xiao Yu is still able to start the compilation work of "The Sky Record of Heroes"
and conduct various scientific researches.
By then, the latest photon computer will be installed on the flagship and become the brain of the entire fleet, while the old photon computer will be installed on another "county" class spacecraft to serve as various auxiliary functions.
, calculation work that does not require Xiao Yu’s direct intervention.
By this time, Xiao Yu no longer paid attention to sustainable development. He attacked all the methane lakes with black worms on Titan. Depending on the size of the lake, either nuclear strikes or conventional high-explosive ammunition were used.
In short, in addition to keeping some black insects for artificial breeding, Xiao Yu killed all the black insects he could collect, and then collected their corpses. Some of them were used to build spaceships, and some were stored for future use.
purpose.
The entire Titan is in bad luck. In the past few years, fires and mushroom clouds would burst out from time to time on Titan. The entire Titan was turned upside down by Xiao Yu.
This is the last madness before leaving. Since you can't come back, let's leave some traces of yourself here.
Xiao Yu thought so.
Three years passed quickly, and three "county" class spacecraft were completed. One thousand "village" class spacecraft and seventy "township" class spacecraft were also completed.
Xiao Yu's long-awaited interstellar voyage will soon begin.
Note 1: Because Titan is locked by Saturn's gravity and rotates slowly, to build the space elevator mentioned in the article, the length of the life rope required is at least about 20,000 kilometers. However, given the protagonist's current construction ability
, for the sake of reasonableness, I changed it to two thousand kilometers. In addition, there must be many errors in the scientific theory in the article. I hope you don’t take it seriously and just watch it for fun. I hope that students who have studied this will not delve into it.