As a generation that grew up in the new century, Qin Feng, like countless peers, grew up under the influence of various sci-fi blockbusters since he was a child.

In those literary works, a certain routine was once very popular, that is, a large country, or a multinational group or other power organization, because of the chance to get the alien crashed spaceship, secretly get it back to study it, and gain a lot, which led to the rapid development of the country's scientific and technological level, and the strength increased dramatically, so that the ambition was inflated in vain to dominate the blue star, of course, they often ended up being thwarted by the plot attempt of the protagonist in the story.

This kind of exaggerated cultural work is practically impossible for anyone with enough experience to know, at least not in the Overworld so far.

Modern industrial science and technology civilization is an extremely large and complex system, even if it has been improved by leaps and bounds in a certain field, it does not mean that it can form an all-round and crushing advantage over other major countries.

Of course, the technical level of these flying machines stored in the secret base is indeed far beyond the level of human civilization in this era, and the secret department of China has invested a lot of resources to study and crack it all year round, hoping to gain something.

Such a top-secret plan is being carried out by several major powers in the main world, and it has been rumored that the Dawn Goddess hypersonic reconnaissance aircraft and the B-2 stealth strategic bomber of the United States have applied some technology from the alien spacecraft in Area 51, and I don't know whether it is true or not.

There are so many secrets in the main world, it is indeed beyond Qin Feng's imagination, and how many unknown shady scenes are hidden under the surface of the water, even with his current rank, it is difficult to know.

Just from the appearance, the prehistoric civilization aircraft in the underground Great Wall base are very well preserved, and there is not even a trace of rust on the smooth and smooth shell, which shows the advanced level of material science and technology.

Moreover, most of these aircraft can fly, and a few aircraft also carry weapon systems and have certain attack capabilities. Some of the vehicles even have the ability to travel back and forth to Jupiter's orbit, but because Huaxia's technological level is limited, they cannot replenish the energy needed for the spacecraft, so they can only be locked in the warehouse to sleep.

In fact, some of the technologies of prehistoric civilizations, which are relatively not so advanced, have been smoothly digested and integrated into their own technology trees by the human civilizations of the current era of the Overworld. For example, during World War II, Germany went from its rise to the peak and its decline and fall, and it took only more than ten years before and after the development of many black technologies, even from the current point of view, to be quite high-end and high-grade.

For example, the wing-like stealth aircraft, the V-2 ballistic missile, the Silver Bird air bomber, the air carrier, etc. Among them, the flying saucer developed and manufactured by the engineers themselves can rise to an altitude of more than 30,000 meters within two minutes, which is an amazing record even in the twenties of the 21st century, which few countries can do.

Hitler always believed that the Aryan race was the descendant of the great gods and the noblest race on the blue star, so in the heyday of Germany, the Führer sent many expeditions to all over the world, collecting various ancient history books, myths and biographies, trying to find the secrets left by the gods in the world, and provide assistance for his ambition to dominate the world.

In order to find the origin of the Aryan race, as well as the secret of the legendary axis of the world, the German expedition reached the Himalayas, and it is said that they also took a divine chariot that the gods had ridden from a temple in Western Tibet, which should have been the flying machine of some kind of prehistoric civilization.

After the establishment of Taizu in this dynasty, the secret department sent people to investigate, and found that most of the valuable ancient books and antiquities in that temple had been looted, and there was not much valuable things to be found.

Speaking of which, we can only blame the previous Chinese authorities for being too weak, so that the territory of Nuoda has become an undefended territory, and any cat or dog dares to run to rob and steal, and I don't know how many good things were lost abroad during this period.

Later, Germany was defeated, and these valuable collections and many research results were either destroyed or divided by the two superpowers of the United States and the Soviet Union. From the shape design of launch vehicles, intercontinental missiles, and supersonic bombers, you can see the shadow of Germany's doomsday black technology.

So today, decades later, how many black technologies are secretly being researched or have come out in the main world, I'm afraid no one can say.

Of course, due to the difference in civilizations, the large gap between the technical levels of each other, and the serious lack of relevant information, so so far, the major powers have not gained as much as imagined.

Due to the complexity of the modern industrial technology system, it is not so easy to crack and imitate any high-tech products, and it is not possible to simply copy them after getting a sample, the most significant example is the aero engine

Due to historical and practical reasons, the military of Huaxia has long imported different types of aero engines from Russia, and has also privately imitated them, purchased a number of samples for dissection and mapping, and repeatedly studied each part, but the performance of the final imitation product has always been unsatisfactory.

The reason is that Huaxia's material processing and precision manufacturing technology are not up to par, the proportion of various metal components in each part of the engine, what kind of quenching and processing procedures need to go through to meet the corresponding technical indicators, and how to achieve the best cost performance, which must spend a lot of money and decades of time to find out the valuable experience, money is difficult to buy without passing on the secret, and there is no shortcut.

In the early years, the level of Chinese aero engines has lagged behind that of Western developed countries, and it has not improved until recent years, and it is for this reason that the level of Chinese aero engines has lagged behind.

So although the treasure in the hand is of astonishing value, it is not easy to realize real power at this stage, and all countries are the same.

Every alien civilization's aircraft is a unique and unique product, and if it cannot be restored after being dismantled, it will be destroyed, and it is impossible to have a second similar aircraft for experts to compare and study. Therefore, without absolute certainty, scientists will never move these baby bumps casually.

And after the preliminary analysis of the engineers, a considerable part of the raw materials used in the parts that make up the aircraft are extremely rare or simply not available metal elements on the blue star; Moreover, the processing and manufacturing requirements of parts are extremely demanding, and many key components must be completed in the microgravity environment of space, that is, in the space station in low-earth orbit.

It's a pity that even the United States doesn't have the ability to move a factory into space, so the legacy of these prehistoric civilizations and alien civilizations is basically a flower in the mirror for the human civilization of this era, and you can only look at it dryly.

Fortunately, due to the emergence of Kun and Dium Group, Huaxia's progress in aerospace engineering in recent years can be described as leaps and bounds, with the completion of a number of large space stations, many new materials that previously only existed in the imagination have been introduced and put into application in the smelting furnace of the space station.

So in this area, the Huaxia of the Overworld has once again come ahead of all the great powers.

Retracting his thoughts, Qin Feng began to carefully examine the flying machines in front of him, and at the same time asked the ship spirit Yu Lan to help investigate, and after a while, he came up with a detailed analysis result.

“…… More than half of the aircraft have an average technical level, and the technology level will not be higher than the current empire, but the rest of them are considered good things, which can be studied by your people and will have good gains. She said.

"That's fine."

With a wave of his hand, Qin Feng collected all the flying machines in this world into the dimensional world, intending to bring them back and hand them over to the relevant departments of the empire. The black technology creations that can be obtained without spending the original source, of course, the more the merrier.

In the following time, he and Qin Jian traveled between different planets, collecting all the essence of evolutionary energy contained and accumulated within each planet, except for a few subjugated planetary wills, most of them became her food, and even the ship spirit Yu Lan shared a lot of benefits.

And every time he finished searching a planet, Qin Jian would leave his own breath on it, and make a detailed exploration record of many information about the planet, and give it to Qin Feng after summarizing.

Three months later, when Qin Feng and her returned to the empire, nearly fifteen star fields and tens of thousands of large and small planets were all patronized by her, and the direct consequence of this was that her cultivation had reached the high level of the Golden Immortal from a half-step Heavenly Immortal, and if she continued to improve, she would be able to reach the Taiyi Golden Immortal Realm.

Unlike human cultivators, there is no so-called cultivation bottleneck at all, as long as the required resources are sufficient, it can be improved and grown almost unlimitedly.

In Qin Feng's hands, there is an additional high-precision star map, as well as the distribution of all mineral resources on these newly discovered planets, which is of great value to the empire.

"By the way, are there any evolutionary energy essences inside those stars?"

Qin Feng suddenly thought of this question, theoretically speaking, there should be, after all, there were astronomers in the main world who imagined that the planets themselves could also be life, not only referring to planets, but also stars with the possibility of evolving self-consciousness.

"Of course there is,"

Qin Yan said calmly: "It's just that people's strength was limited before, so they couldn't fight their ideas, and after breaking through the realm of Taiyi Golden Immortal, they can consider it!" Moreover, it is too difficult for stars to give birth to their own will, so the essence of evolutionary energy in most stars is ownerless and can be collected at will. ”

"That's fine."

Qin Feng put his mind at ease, it seems that as long as she doesn't encounter other star field wills, Qin Feng's evolution will not be affected too much, and with her own protection, she will be fine.