The road to technology

Chapter 188 Stellar Drive Technology

"Lieyang's star-driven technology." Yue Yuanzhou sat on the sofa alone, watching while tasting wine.

Yes, it’s a person. Ah Zhui hasn’t appeared for a long time. In fact, Yue Yuanzhou knows what she’s doing. This little angel is plunged into the ocean of knowledge day by day. Now he should see the science of Cybertron. technology too.

After Yue Yuanzhou knew about this situation, he didn't bother her, so now he has to watch Lieyang Technology here alone.

Now that he has sent the planet back to the orbit of Proxima Centauri through a large space bridge, there is also a purpose for returning here. One is to continue to observe the civilization that is still in the Stone Age here, and the other is to digest the scorching sun here. Stellar drive technology and space-time shield technology.

Originally, Yue Yuanzhou wanted to go to the Angel Nebula, but the embarrassing thing is that the Angel Nebula is 25 billion light-years away, which is too far away, and he didn't know when he arrived there.

In fact, Yue Yuanzhou also gave the quantum entanglement communicator to Ragnarok before. Theoretically, he could tell the angel the large-scale space bridge technology and build one in the Angel Nebula, and then pass it on from here.

It's just that this kind of thinking is too taken for granted, because in fact, even Yue Yuanzhou's large space bridge can't span such a long distance at once, and he doesn't want to reveal this technology, after all, it involves super energy.

Besides, Yue Yuanzhou is not so interested in the time-space shield now, because he has learned its working principle from the Tianren Qi who is still on the earth. It turns out that the time-space shield is not so magical, it is just a time-space folding method. To put it simply, it twists the time and space around itself into a space similar to a Klein bottle, and then makes all attacks circulate in this bottle infinitely.

As for the original energy absorption feature, it is gone, because it involves the void technology of the dark plane, which transfers energy to the void for storage and then converts it for use. Now that the dark plane is gone, this function is gone.

Therefore, Yue Yuanzhou, who has traveled far in time and space, believes that using this technology as a means of defense is not as good as directly using the space severing technology to cut a few shady lines in front of him.

But it's not without some gains, at least it illuminates the time-space folding technology that Yue Yuanzhou has not lit up, and Yue Yuanzhou also has some ideas about the use of this technology, this should be the basic technology of time-space leap.

Time-space transition is actually a very advanced technology, because this technology can also be called stellar leapfrog. To achieve time-space transition, it takes a huge amount of energy just to distort and fold the time and space in the big universe, so let the spacecraft itself provide energy It is not realistic at all, so it is necessary to have stellar related technology.

The time-space transition is different from the large-scale space bridge. The large-scale space bridge must establish star gates at both ends, while the time-space transition only needs to be at this position to jump to the next position, but this requires enough energy to distort and fold space-time.

Of course, this technology needs to be further explored, because Yue Yuanzhou has only mastered its basic technology now, which also involves the rapid absorption of star energy and the positioning of the destination.

The location of the destination has not yet been determined, but the method of quickly utilizing the energy of the stars has arrived.

Different from Yue Yuanzhou's Ziwu Dyson sphere that absorbs solar energy passively, this is a technology that can actively let stars release a large amount of energy and use it directly.

This technology is based on a deep understanding of stellar evolution, which is the process from the formation of stars to the death of stars in the universe.

Then, how do stars in the universe form? In fact, each star comes from a large molecular cloud in the universe. This molecular cloud gathers under the action of gravity to form a so-called open star cluster.

Most of the gravitational effect here comes from the presence of dark matter in this position. If you are lucky, the gathered open star clusters will slowly form a huge vortex, and the matter in the center of the vortex will accumulate more and more with accretion. More, the more they gather, the greater the gravitational force, and then they can attract objects from farther away.

Slowly, the center of the vortex sucked in most of the matter, and as the matter accumulated more and more, when it reached a critical value, nuclear fusion in the core broke out, and a star was born.

But if the star is less than 0.08 times the mass of the sun, it will form a brown dwarf, and if it is more than 8 times the mass of the sun, it will form a massive star.

The lifespan of a massive star is very short, and it will not take long to form a red supergiant, and then a supernova explosion will occur, and the material it sheds will enter the next cycle, and the remaining core will either form a neutron star or a black hole.

If the remaining core mass exceeds the Oppenheimer limit, it will form a black hole, otherwise it will be a neutron star, of course. According to Lieyang, this should be called Lieyang limit.

Only low-mass stars with moderate mass can form red dwarfs and yellow dwarfs with relatively long lifespans. Just like the sun, yellow dwarfs can live for about [-] billion years, and the Proxima Centauri in front of Yue Yuanzhou is a red dwarf. This kind of star The lifespan of the human body is long, and it is estimated that it can last hundreds of billions or even trillions of years.

Therefore, basically no civilization has seen red dwarfs evolve until the end, because their lifespan is too long, and the universe is only 138 billion years old, so all the red dwarfs in the entire universe are still young and strong.

Even Lieyang, a civilization that is proficient in stellar technology, only infers that the next stage of a red dwarf may be a white dwarf or a brown dwarf after exhausting its fuel, and finally a black dwarf that is completely dead, so the main research of star-driven technology is Or massive stars and yellow dwarfs.

If the mass of the yellow dwarf exceeds 1.44 times the mass of the sun, it will also undergo a supernova explosion and enter the next cycle.

Only stars about the size of our sun shed material, leaving behind white dwarf cores.

Take a moderate-mass star like the sun as an example, it basically relies on the fusion of hydrogen into helium to generate light and heat. When the hydrogen in it is almost exhausted, it will announce that it is about to die.

But at this time, although its internal hydrogen is consumed, there is still some hydrogen in its outermost layer. This outer layer wrapped by hydrogen accelerates fusion due to the rise in temperature, and the heat generated continues to increase. The increase in heat means that Brightness is also increased.And the fusion energy is also slowly transmitted to the outer layer, so that the star expands outward. At this time, the yellow dwarf star becomes a red giant star.

The star in the red giant stage is already extremely unstable, so its core will collapse, which will cause the temperature of its core to continue to rise. At this time, the helium in its core is already in an electronic degenerate state, that is to say The electromagnetic force of the core is no longer enough to compete with the gravitational force generated by the core. At this time, the helium atoms have been compressed to the limit.

From now on, the red giant star will enter the next stage, because at this time the core temperature has reached [-] million degrees Celsius, so helium nuclear fusion occurs, and then the helium element is further fused into carbon element.

Since the helium at this time is already in the degenerate state of electrons, the pressure does not increase with the increase of the nuclear reaction temperature, which is equivalent to saying that the helium nuclear fusion is not bound, so a helium flash will occur.

Helium flashes can instantly release enormous energy, thereby dissolving the electronic degeneracy in the core, and then the star will enter a stable helium fusion state for a period of time. As the helium decreases step by step, the carbon in the core will increase, and then It will enter the stage of core contraction and outer layer expansion again. After repeated several times, the red giant star can't stand it anymore, and finally throws out all the matter except the core through explosion, leaving only a white dwarf star.

And the core of Lieyang's star-driven technology is the drive!This drive is not to drive the star to run around, but to drive the internal activities of the star to speed up the process, so that the star can burst out the energy that would have been released in a short period of time, which would have taken tens or even tens of billions of years. The heart of stellar drive technology.

That's why they can make supermassive stars go supernova.

Of course, there is also the accompanying technology of quickly absorbing star energy. This energy absorbing technology, together with the technology of accelerating star evolution, is Lieyang's star-driven technology.

(End of this chapter)