Chen Xin was unaware of the changes that had taken place millions of light-years away, and at this time, he was accompanied by Leah to visit Wèn in the Star Circle, the capital of the Tianqin civilization.

Habitable planets, industrial planets, war fortresses, warships of various types, and finally even major universities, research institutes, and real rooms have all become the targets of Chen Xin's visit.

All the Qiē of the Tianqin civilization almost became one-way transparent in front of Chen Xin.

In the brain memory of the steel jump, philosophy, natural science, social science, history, art, culture, and all aspects related to the Tianqin civilization are rapidly being built up to form a complete system.

Chen Xin also seized the time to learn all aspects of the fifth-level civilization.

From the most basic mathematics, physics, chemistry, biology, astronomy, to philosophy, sociology and even theology, the complete grand unified field theory, space curvature theory, tachyon technology, dimensional technology, heavy element fusion technology, antimatter theory, Chen Xin's breadth and depth of knowledge are almost not inferior to Leah, and with the help of the steel hammer, his horizons are undoubtedly much broader.

Of course, if it weren't for Taijitu's transformation of his body, Chen Xin would probably not be able to master so much knowledge no matter how hard he tried.

It was only at this time that he also understood why the Carbon-Based Life Alliance did not consider the second-level civilization as a member of the interstellar civilization.

The main reason for this is the difference in the development of their own potential.

To use a simple analogy, he can basically remember now, so he can calmly learn from the shallow to the deep content of various subjects. But no one on Earth was able to do that.

From elementary school to high school, after completing the basic subjects, students will study in separate subjects after entering university. And as you improve your academic qualifications, from bachelor's, master's to doctorate, you will find that the field involved in your major is getting narrower and deeper.

Finally, even the top scientists may be authorities in a particular field of expertise. But for these people, maybe some aspects of life are not as good as ordinary people.

Because of this, after the breakthrough of genetic technology, almost every civilization will strengthen the development of individual lifespan and brain.

And this is precisely one of the iconic technologies of the third-level civilization.

In a fifth-level civilization like the Lyra Civilization, any ordinary person among them has mastered countless times stronger knowledge than the most genius scientists on earth.

Chen Xin is an exception among humans, and after the transformation of the Taiji Diagram, he still maintains the appearance of a human. However, there is a big difference in both life expectancy and learning ability in all aspects.

Even those seemingly very advanced disciplines of the Tianqin civilization were still easy for Chen Xin to learn when he learned them, and even Chen Xin couldn't understand why.

While Chen Xintong's Tianqin civilization is rapidly enriching itself, the Tianqin civilization is not without gains.

Not only did they learn a lot of secrets about the carbon-based alliance and the silicon-based alliance from Chen Xin, but also in the process of visiting WÈN, Chen Xin would also relay his views on some engineering science and technology fields to the other party, and these opinions were often in one sentence, so that the scientists and engineers who accompanied Chen Xin on the visit were very rewarding.

Time flies by before you know it.

Chen Xin may stay at a research institute for several months. Sometimes when I visit a certain university, I become interested. You may be able to study with those students for half a year.

Thousands of habiting planets and industrial planets and tens of thousands of academic and research institutions in the entire Tianqin civilization capital star circle, it took Chen Xin twenty-five years to travel through them.

In the past twenty-five years, he has almost become a god-like existence in the hearts of the scientists and engineers of the Tianqin civilization, and the overall scientific and technological strength of the Tianqin civilization. With his help, it has also been further improved.

You must know that the Tianqin civilization itself is already a fifth-level peak civilization, and at this level of civilization, its engineering technology has developed to the extreme, and if the basic technology does not make further breakthroughs, it will be difficult to make further progress.

With the help of Chen Xin. In the past twenty-five years, although they still haven't been able to break through the barrier of the sixth-level civilization, they have made great progress and successfully developed a curvature engine with one hundred and twenty times the speed of light, which is one-fifth higher than the original maximum speed, don't underestimate this fifth, once their warship is equipped with a new engine, it can make the fleet of the Lyra civilization have a great advantage against other fifth-level peak civilization fleets, making it the most powerful armed force in the galaxy.

At the same time, their technologies such as tachyon technology, space curvature detectors, quantum communication technology, and gravitational wave telescopes have made greater progress.

In particular, the progress in the field of tachyon technology has almost made a qualitative improvement in the science and technology of the entire Tianqin civilization.

The tachyon is actually a physical concept, also known as a superlight speed on, a speedon, and a tachyon, which is a subatomic particle.

When humans were on Earth, they had already derived this hypothetical particle from the theory of relativity—tachyons always orbiting in the universe at speeds higher than the speed of light c.

Although the earthlings have not yet obtained proof from the real yàn, the Tianqin civilization has long verified the existence of this particle through guò real yàn.

In fact, if a civilization develops to the peak of the third level, it needs to find the theory of the Great Unified Field to advance to the fourth level of civilization, and the fast son is a level that cannot be bypassed.

Tachyons have singular physical properties.

Its mass is imaginary and its velocity will increase infinitely with the dissipation of energy, and when its energy tends to zero, its velocity tends to infinity.

Tachyons, once generated, have a velocity greater than the speed of light. To reduce its speed, it must be supplied with energy. To reduce to the speed of light, it must be supplied with an infinite amount of energy, so it is impossible to reduce its speed to or below the speed of light.

But even for a fifth-level civilization, there are countless mysteries hidden in the fast son.

Among them, the problem of the negative energy of tachyon is a key one.

Since the emergence of negative energy will mean that any physical system will be in an unstable state because it may release tachyon indefinitely, the system will increase its energy indefinitely, thus leading to the emergence of a perpetual motion machine.

And, even more amazingly, even if tachyon pairs are produced infinitely, the law of conservation of energy momentum is not broken, and the total energy in the vacuum is not changed.

In addition, according to the Lorentz transformation, the order of time may be changed during the conversion of tachyons from one coordinate system to another, i.e., time reversal.

There was once a physicist named Bühler on Earth who published a limerick poem that ridiculed the tachyon theory.

"The young girl's name is Baolei, the magic is difficult to chase, the fast son theory to guide, today's trip and last night's return. ”

Although these two difficult problems can be explained by the principle of quadratic explanation, which is that a particle with negative energy should be regarded as being absorbed and then emitted, so that the negative energy is exactly the same as the physical meaning of the reverse flow of time and the positive energy is the same as that of the flow of time, so that the laws of physics remain unchanged after changing the coordinate system, it does not solve the problem of the invariant law of cause and effect.

In addition, it is possible for tachyons to propagate at infinite speeds, so if there are zài tachyons, it is possible to transmit information instantaneously, and it seems that it is possible to return to the concept of "super-distance action".

Therefore, in the scientific system of the Tianqin civilization, although the tachyon theory appeared very early, the research and application of this particle is still in a rather extensive stage.

At present, the Tianqin civilization mainly uses the ultra-distant action of tachyns for detection and communication.

Needless to say, the two faster-than-light means of communication mastered by the Lyra civilization are tachyon communication and quantum communication.

Tachyon communication has the characteristics of low energy loss, high transmission density and convenient communication, but its action distance is relatively short, and it is easy to be interfered with and cracked by the enemy, and is mainly used for communication within ten light years.

Quantum communication is characterized by huge energy consumption and relatively bulky, but its over-distance effect is instantaneous, even if it is separated from the two ends of the universe, it can be reached instantaneously, and its secrecy effect is very good, and there is almost no possibility of being intercepted by the enemy. (To be continued......)