In a broad sense, spacecraft fuel is divided into two parts. One part is fuel, Xiao Yu uses liquid hydrogen, and the other part is oxidant. Xiao Yu uses liquid oxygen.
Fuel must add an oxidizer to burn it and generate power. Now, there is not much fuel left on the spacecraft, but there is still a lot of oxidizer left.
In this case, if Xiao Yu can control the spacecraft to reach Titan, the almost unlimited methane on Titan can replace liquid hydrogen as Xiao Yu's current energy consumption. After developing a controllable nuclear fusion device, the nearby
Saturn is an inexhaustible source of nuclear fusion fuel.
By then, Xiao Yu will have the energy to repair the spacecraft, the energy to turn on the power to restore powerful computing power, and even the energy to mine minerals, manufacture new equipment, and new spaceships!
The reality made Xiao Yu sigh. Titan was there, but Xiao Yu couldn't reach it. Infinite energy was there, but Xiao Yu couldn't go there because of lack of energy.
"Liquid hydrogen, liquid hydrogen, I want liquid hydrogen!" Xiao Yu almost roared in depression.
In fact, if he searches for it again, Xiao Yu's remaining fuel can still barely support him to reach the escape velocity of Mars and leave the orbit of Mars. But in that case, the remaining energy can only support the central computer for nine months.
Nine months may seem like a long time, but compared to the long space voyage, it really flies by in a blink of an eye.
Even if Xiao Yu ignores the consequences and barely escapes from the gravitational field of Mars by relying on remaining energy, Xiao Yu's sailing speed can only reach a maximum of six kilometers per second. At this speed, it will take about seven years to reach Titan. That is
He said that Xiao Yu died while still on the way.
Such a result is absolutely unacceptable to Xiao Yu.
Xiao Yu began to calculate carefully, trying to figure out another method.
"If I don't fly directly to Titan, but fly towards the sun first, with the help of Earth and Venus, and the sun's gravitational acceleration, my speed can reach about eight kilometers per second, and the closer to the sun, the faster the speed. In this way
Come on, it only takes me about two months to reach the earth's orbit. Well? By the way, there are many comets in the earth's asteroid belt, and a lot of water has been evaporated. If I can collect some water, after getting close to the sun,
You can use the ionization effect of the sun to ionize water into oxygen and hydrogen! I will have energy again!"
Xiao Yu's spirit was shaken. In the confusion, Xiao Yu finally saw a little hope of survival.
"When it is close to the sun, the fastest speed will reach 26 kilometers per second... Then it will circle the sun once and continue to accelerate with the help of Mercury's gravity. Venus will just move to the other side of the sun, and it will not be counted as Venus. Next is the gravity of Mars...
...Forget about Jupiter, I have to stay far away from Jupiter, but even if it passes by Jupiter tens of millions of kilometers away, Jupiter can at least accelerate my speed by three or four kilometers per second... In this case..."
Xiao Yu calculated carefully, and his heart became more and more excited.
"If I fly in the direction of the sun, circle the sun once and then go to Saturn, although the distance has increased from about 1.3 billion kilometers directly to Saturn to about 1.9 billion kilometers, my speed has increased! I can save at least five years.
time! Moreover, on the earth, I can obtain liquid oxygen and liquid hydrogen. If I am close to the sun, I can obtain a considerable amount of solar energy. In this way, the fuel has also been replenished!"
"There is one thing that is worth worrying about." Xiao Yu silently calculated, "The earth's orbit is now extremely chaotic. I have to be prepared to be attacked by meteorites. There is also the sun. The sun must also be affected by Jupiter. The intensity of the solar wind is estimated
It’s several levels stronger, and it’s also a potential danger.”
"Forget it, when we reach the Earth's orbit, we'd better leave the ecliptic plane temporarily. The less water we collect, the less. Safety first. As for the sun, we still won't cross the orbit of Mercury. Although the acceleration function will be less, the safety factor is
It’s much larger, and the stress on the insulation is much reduced.”
"Okay, that's it!" Xiao Yu made up his mind. After checking himself one last time to make sure that there wouldn't be too many loopholes in the whole plan, he gritted his teeth and started the spacecraft engine.
This is tantamount to a gamble. God knows what dangers are waiting ahead? But if you continue to gamble, there is still about 30% hope of survival. If you don't gamble, you will just sit back and wait for death. Xiao Yu is really not willing to be in control.
Nuclear fusion technology had achieved a breakthrough, and a bright future was waiting for him, so he died like this. He couldn't help but have to fight for it no matter what.
There are really too many unfavorable factors. Not to mention whether the equipment will have new malfunctions during the long journey, nor whether it will be attacked by meteorites, or whether a sufficient amount of water can be collected.
Talking about the heat insulation layer of the spacecraft, when the spacecraft was originally designed, the heat insulation layer was to deal with the friction of the atmosphere when landing on the planet, but it was not designed to deal with the high temperature of the sun.
But in such a situation, the only way to do it is to catch the duck and put it on the shelf. If it doesn't work, you have to do it. If you keep fighting, you will at least have a hope of survival. Xiao Yu is not willing to accept his chance and encounter many difficulties to fuse his soul with the central computer. It is not easy.
He gained unlimited life, extremely powerful computing power, and unlimited energy, but he died before his interstellar journey had even begun.
Looking at Mars gradually going away, Xiao Yu said silently in his heart: "Brother Mars, thank you for blocking such a strong wind and rain for me. When my technology develops in the future, I will definitely come back to help you transform it. Well,
Transform it into a green planet, release some animals on it, and transform you into a fairyland on earth."
After silently making a wish, Xiao Yu resolutely closed the telescope. Under such circumstances, save as much energy as you can.
Immediately afterwards, Xiao Yu shut down most of the non-essential functions of the main control computer, leaving only the navigation system, radar anti-collision system and other necessary systems, and began a long and bleak journey.
Mars is now about 80 million kilometers away from the Earth's orbit, and it will take two months for Xiao Yu to get close to the Earth's orbit. After such a long-distance roaming, he ended up back at the starting point. This result made Xiao Yu extremely depressed.
There is also a relative speed issue involved here. For example, while Xiao Yu is orbiting Mars, he is also orbiting the sun with Mars, and his speed is about 25 kilometers per second. When Xiao Yu leaves Mars,
When flying towards the sun, from the perspective of Mars, Xiao Yu flies out in a straight line along the tangent of the orbit, but from the position of the sun, Xiao Yu flies along a parabola. The specific explanation is more complicated, in short
, Xiao Yu's speed approaching the sun is about eight kilometers per second, and then it will gradually accelerate under the influence of the sun's gravity. It will eventually take about two months to reach the earth's orbit.
In addition to letting the robot carried in the spacecraft start making some necessary preparations for collecting water sources, the rest of the energy consumption has been reduced to a minimum. Xiao Yu can't even calculate the data obtained from Jupiter. Depressed
Next, in addition to allocating a few tenths of CPU usage for the robot to use, Xiao Yu stared at the dark space in a daze all day long.
Without the obstruction of the atmosphere, the starry sky appeared extremely clear. Xiao Yu found traces of Tianyuan Si among countless stars.
Tianyuan 4 is the closest star to the sun that has been confirmed to have planets, and is about 10.5 light years away. Tianyuan 4 is also the next destination in Xiao Yu’s space navigation plan. Because Tianyuan 4 has been confirmed to have a planet of about
A gas giant planet with a mass of 1.5 times that of Jupiter can provide Xiao Yu with sufficient nuclear fusion fuel. There are also two asteroid belts around Tianyuan, which can provide Xiao Yu with sufficient building materials.
"Tianyuan Four. Humanity's first interstellar voyage." Xiao Yu stared at the figure of Tianyuan Four, muttering to himself, and couldn't help but start imagining what would happen after arriving in the Tianyuan Four star system.
The situation comes.
After looking at it for a long time, Xiao Yu retracted his thoughts and sighed sadly: "If this trip to the sun does not go well, let alone going to the Tianyuan Four Galaxy, even whether I can survive will be a problem."
During the long voyage, more than a month had passed. The number of meteorites in the interstellar space began to increase significantly.
The current trajectory of the spacecraft has left the ecliptic plane. The trajectory of the planets basically falls within the ecliptic plane. Even if the earth explodes, most of the fragments of the earth will still be on the ecliptic plane.
Leaving the ecliptic plane reduces the chance of encountering danger to a minimum.
For more than a month, Xiao Yu controlled the robot and used the remaining materials to make a simple filter to collect ice particles, dust and other materials in interstellar space.
Because of the principle of conservation of angular momentum, even if the earth explodes, most of its fragments will orbit the sun along the original orbit, and their speed will not change much. These days, Xiao Yu has deliberately controlled his own trajectory.
Moving closer to the original Earth's trajectory, the relative movement speed between Xiao Yu and these ice particles and dust is not very fast. It is only about one to two hundred meters per second. Depending on the strength of this filter, it is enough to remove them a little bit.
Captured bit by bit.
But the result made Xiao Yu couldn't help but lament in his heart.
Twenty-four hours have passed since the filter was opened. However, the total mass of material captured is less than one kilogram. Among them, water accounts for less than 30%.
"Mosquitoes have small legs but they are also meat. Take your time." Xiao Yu started to work as a scavenger of the universe while controlling his orbit to move closer to the earth's orbit.