The last human in the universe

Chapter 160 Kinetic Energy Exchange
Yes, as early as nearly a hundred years ago, as early as when he was still in the ruins, Zhao Changxing made up his mind to build a new neutrino telescope, collect as many wrecks as possible from the ruins civilization here, and as much as possible When obtaining those gravity bombs, Zhao Changxing anticipated the day when the energy would be insufficient.

The difference is only in the degree of energy deficit.

Is it a serious deficiency, so that the Yuanhang spacecraft has no antimatter energy available at all, and even the life support system cannot be maintained, or is it slightly insufficient, and although life is hard, it can still barely maintain it?
It depends on luck.More intuitively speaking, it is the failure rate of the Yuanhang spacecraft.

Because the higher the failure rate, the more people need to wake up from hibernation, and the more materials and energy are consumed.

On the whole, the level of energy shortage at this stage is not too high, that is, luck is not bad.

Facing Xiaoxi's report, Zhao Changxing nodded slightly.

"This day will come. Now that it has come, then... stop slowing down. You can't watch people die of thirst and starvation."

Following Zhao Changxing's order, the fiery tail flame at the tail of the Yuanhang spacecraft, with a total ejection area of ​​up to ten square kilometers, slowly reduced its brightness to a level that was less than one-tenth of the original level.

This means that its propulsion power is reduced accordingly.

Although calculated according to this deceleration rate, there is no doubt that the Yuanhang spacecraft cannot stay in the Lakai 9352 galaxy.

In this way, a lot of antimatter energy has been saved and diverted to the more critical consumption of life support and troubleshooting.

Before that, many sealed nuclear fusion reactors had already been activated, and they also began to supply energy to the outside world.

Compared with the annihilation of matter and antimatter, nuclear fusion is undoubtedly a relatively inefficient way to obtain energy.In the normal way of sailing, people obviously don't think about it, and they don't deliberately stockpile fusion fuel.

With those payload spaces, it's better to store more antimatter.

But now, there is really no other way, and we can only divert some water under the premise of strictly restricting people's water consumption, and use it for fusion after electrolysis to produce hydrogen.

Time slipped away under such circumstances.The star in the distance is getting brighter and brighter.

At this moment, the Yuanhang spacecraft has successfully passed the boundary of this star, that is, the Oort cloud zone.According to theoretical calculations, the total amount of matter in its Oort cloud is equivalent to about ten Earths.

This is undoubtedly a lot of matter.But unfortunately, during the process of passing through the Oort cloud, the Yuanvoy spacecraft did not find any macroscopic matter.

Only the data about the rapid increase in the density of matter told by sophisticated equipment can make people more intuitively feel the distance from the stars is getting closer.

This can already be regarded as the area near the stars.At this moment, the space outside the Yuanhang spacecraft can still be regarded as a vacuum with extremely high purity, but the average number of particles per cubic centimeter in the space has reached tens of thousands.

If that remnant is here, then trying to find those gravitational bombs the way neutrino telescopes detect muons would no longer work.

The slow, centuries-long journey is drawing to a close—if one can slow the Voyager spacecraft down enough to be captured by the gravity of this planet.

At this moment, the Yuanhang spacecraft has almost run out of oil and lamps. At this moment, the pressure on all waking people has reached the limit, and the spirit and body have also reached the limit. Now that it may collapse at any time, it is impossible to stay in the galaxy with sufficient supplies. Among them, there is no doubt that it means the demise of civilization.

Both Zhao Changxing and the civilization leaders are aware of this.Everyone is aware of this at the moment.But at this moment, the Yuanhang spacecraft still maintained an extremely low deceleration rate, and still did not increase its power.

When the brightness of this star increased to several times brighter than Venus, the Yuanvoy spacecraft passed the material structure of this galaxy similar to the Kuiper belt of the solar system at a speed of nearly [-] kilometers per second, and then went straight rushed towards the huge star located in the center of the galaxy.

There are also many asteroids and comets in this galaxy.

Because of the gravitational combat between the three inner planets and the star itself, they were gradually expelled to the edge of the galaxy and gathered there, eventually forming a structure similar to the Kuiper belt.

Among them, there are at least [-] stars with a mass of more than [-] tons.

Unfortunately, this material density is still too low.The Yuanhang spacecraft passed through it without any waves, and did not obtain any supplies from it.

During this process, the space shuttle, which was [-] kilometers away from the Yuanhang spacecraft and always being towed by the Yuanhang spacecraft, broke free from the shackles of the cables.

With a higher acceleration than the Yuanhang spacecraft, it started to decelerate and turn by itself, and began to fly towards the No. [-] planet.

Even if the energy is insufficient, it is still possible to put such a small spacecraft into orbit.

After crossing the Kuiper belt, or called the asteroid belt, comet belt, in short, it means the same thing. After that, the Yuanvoy spacecraft continued to move forward and continued to rush towards the stars.

Then, the orbits of planet No. 3, planet No. 2, and planet No. 1 were successively crossed.

At this moment, star Lakai 9352 has increased to the size of a millstone in the eyes of the naked eye.After extinction, people can even clearly see the prominence structures on the edge of the star that extend outward like auroras and drift around with the violent stellar wind.

The huge Yuanhang spacecraft is as small as dust in front of the stars.No, not even dust.

At this time, the propeller, which had been running at low power for several years, finally started to run at full power.It's just that the direction of its advancement has changed at the moment.

Under its propulsion, the Voyager spacecraft began to turn violently toward the side of the star.And in this process, the huge gravitational force from Lakai 9352 acted on every object, every person, every piece of equipment, and every atom in the Yuanhang spacecraft.

Massive stars in the universe can be used for both deceleration and acceleration.The only difference is the choice of track.

At this moment, in the main control room of the Yuanhang spacecraft, Zhao Changxing, leaders of civilizations, and representatives of scientists all looked serious.

In front of them is a huge screen.The panorama of Lakai star 9352 is displayed on the top, and a series of data are displayed beside it.

In the rest of the Yuanhang spacecraft, more than [-] spacecraft operation and maintenance personnel have already taken their positions, ready to go to the battlefield at any time.

Looking at the star gushing with endless power in the image, looking at the ever-changing data, Professor Zhuang Yunwei, who seemed to be about to fall in the next moment, couldn't help but sigh.

"I thought that the matter of relying on massive stars for acceleration and deceleration would no longer appear for us, civilizations of our level. Unexpectedly, now we still need to rely on this method. Complete the final deceleration."

Faced with this situation, people can only sigh in their hearts.

Undoubtedly, relying on massive stars for acceleration and deceleration usually only exists in the rudimentary civilizations whose spacecraft have low speeds, have very little fuel, and need to save a little.

Because although they make the best use of the limited fuel, they are too ink-stained and a waste of time.

For civilizations that have mastered controllable nuclear fusion and higher-level annihilation of positive and negative matter, it is better to bring more antimatter than anything else, so there is not so much time to waste.

"The temperature here is too high, and the radiation is too strong. I hope our broken ship Yuanhang can carry it through."

People prayed silently in their hearts.

At this moment, the more than 60 engineers and skilled workers have already started to rush and be busy.

In the vast space, the huge but small Yuanhang spacecraft drew an arc, and at the closest distance of only more than 400 million kilometers, it passed the star gracefully and lightly, changing its own orbit at the same time , the speed is also greatly slowed down.

With the help of the ubiquitous gravitational field, the kinetic energy exchange between Yuanhang spacecraft and Lakai 9352 star was completed again.

At this moment, the changed orbit points to the vicinity of the No. 2 planet in this galaxy.

"Start decelerating at full power."

Zhao Changxing gave the order, and the tail of the spaceship started to spray violently again.Under the ejection, Yuan Voyage's speed away from the star began to slow again.

Therefore, it is in space and just "encounters" with the No. 2 planet.And with the help of this encounter, another kinetic energy exchange was completed, and along with it, it changed its orbit again.

This time, its orbit points in the direction of the original target planet 3.After a period of voyage, it made another encounter with planet 3.

At this moment, not only is its orbit suitable, but its speed is also suitable.So, after rigorous calculations, one-by-one orbit change and deceleration, it finally successfully parked into the orbit around the No. 3 planet.

When Xiaoxi finally reported the result, everyone in the main control room had smiles on their faces.

In the rest of the Yuanvoy spacecraft, the cheers have already resounded from every corner that the sound can reach.

At a certain troubleshooting site, Dai Yunfei put down the tools in his hands tiredly, a smile finally appeared on his pale and thin face.

"Finally here, I can finally get supplies, I can finally eat meat..."

At this moment, he seemed to have smelled the charming aroma of braised pork, enough to drive people crazy.

(End of this chapter)