Beneath Deep Space

Yu Yifeng couldn't help but sigh: "It's really amazing! This thermonuclear organ is like a thermonuclear battery and can actually use heat to 'charge' itself."

"Their body structure also evolved with a thermonuclear core as the core. A long tail is more likely to cause temperature differences on the body."

"This kind of organ looks more advanced than the human digestive system. The key is to maintain the temperature difference between the inside and outside so that heat can flow. Their bodies can stay in high temperatures of 60 or even 70 degrees for a long time, and they also feel Very comfortable.”

Speaking of this, Yu Yifeng looked disgusted. It was too low-end and very inconvenient for humans to rely on food as a source of energy.

Although Nix people also need to eat a small amount of food, the frequency is generally much less than that of humans. Food is not the main source of energy.

"If humans also had such an organ, how much trouble and time would be saved, just by sleeping..."

But when he saw Yuriko's frowning expression, he quickly shut up.

This girl has basically no other interests and hobbies. Her only hobby... is enjoying delicious food. Or maybe this is also a unique culture of human beings.

Yu Yifeng changed the subject and said: "In this way, basically all underground creatures have similar thermonuclear organs, right? Even indigenous lizards should have them, right?"

Yuriko nodded and hummed. However, she still said seriously: "Yes, a large number of similar organs have been found in many underground creatures, which has certain reference significance for our biology. However, the Nyx man and the indigenous lizard are two different species after all. , their body structures are still different.”

"What's more, over more than 10 million years, the ecological environment of Kix seems to have undergone very significant changes!"

"More than 10 million years ago, there was more methane, carbon dioxide and sulfide in the atmosphere. These gases can also provide a certain amount of chemical energy. A steady stream of meteorites and volcanic eruptions can also continue to replenish these materials."

"For some unknown reason, there is much less carbonaceous material in the atmosphere now, so the 'thermal core' in the indigenous lizards' bodies has been greatly degraded. They still need to take in a certain amount of food, unlike the Knicks, who hardly need it. Little food.”

"Only some underground black worms and long plants are relatively pure geothermal energy creatures..."

This is a rather novel discovery.

In some ancient books that have been discovered, the composition of the atmosphere at that time is clearly recorded: indeed, as Yuriko said, the atmosphere at that time had higher concentrations of methane, carbon monoxide, etc., but very little oxygen.

Many experts speculate that perhaps the mass extinction of the Nyx people is related to the huge changes in the environment! This possibility is very high.

Of course, there is another possibility. The changes in the atmospheric environment occurred after the extinction of the Nyx people. No one knows this kind of thing... People need more evidence to judge.

Yu Yifeng paused and returned to the original topic: "In this way, heat is the best source of energy for the Knicks, not food. They can regain their physical strength as long as they sleep on the heat source, and even No need to eat."

"This is so different from humans, so their way of thinking is very different from humans, and they don't need agriculture."

"If the first great sage is the one who painted the starry sky, then...the second great sage is the one who risked his life to fish out a basin of magma. They need temperature, they need heat. Their digestive organs are not It’s perfect. Eating is not a good choice and will affect your life span.”

"...Why don't they have fire? Wouldn't it be more convenient to use flames, just like lizards?" Yu Yifeng suddenly wondered with a flash of inspiration.

Yuriko rolled her eyes at him and said angrily: "Because there was almost no oxygen in the atmosphere at that time, or the oxygen content in the atmosphere was very low, less than 0.1%, and ordinary combustion reactions could not proceed!"

"They can use the thermal energy of magma and the chemical energy in the air, and they do not need to breathe oxygen at all to carry out redox reactions in the body. So these organisms are generally anaerobic organisms."

“Without oxygen, there would be no violent combustion, that is, no fire!

"This is really beyond our imagination... We don't know how their civilization developed."

Speaking of this, Yuriko said in an incomprehensible tone: "You can imagine a civilization without flames... a civilization that can only use the temperature of magma, but it has developed to the modern era or even surpassed the modern era..."

There is no fire in the Nix civilization. This discovery is simply epic! It is an extremely shocking thing for human beings, and even subverts the traditional thinking of sociologists.

It is hard for humans to imagine that a civilization without fire could develop a splendid modern culture!

Is this kind of civilization...

Stronger than humans?

"All this is because...their culture highly values ​​wisdom and the title 'Great Sage'!" Lily Zi looked at Yu Yifeng and said quietly.

After saying this, the two fell into a kind of silence.

A world without fire is no longer a nightmare difficulty, it is really... a hell difficulty!

If there was no fire on the earth, humans would still be in the earliest stage of ignorance, similar to orangutans today.

Only after man unexpectedly mastered fire did he gradually learn to cook meat and fish, which enabled man to move from the tropical jungles of Africa to the world. Only then did he master the basic skills of driving away wild beasts. Only then did he survive the coldest ice age, and only then did he become the leader of mankind later. Further evolution offers possibilities…

There was no oxygen in the former Knicks, and of course there was no fire. Everything... was nothing!

Even the steam engines and internal combustion engines behind humans use the phenomenon of combustion. But more than 10 million years ago, in a world with very little oxygen... even if there was methane everywhere, there would be no combustion, and the available energy was greatly reduced.

Look at it this way, if the starting difficulty of the earth civilization is "1", the starting difficulty of the indigenous lizard civilization is "10", which is more difficult than humans.

So... the starting difficulty of Nyx civilization is more than a hundred times that of Earth, which is 100!

...a veritable hell difficulty!

There is no fire at all. How can we let primitive people directly use nuclear energy?

"It's really hard to imagine how society would change in a civilization without flames, and how the technology tree would jump..."

Faced with this almost unsolvable problem, Yu Yifeng also felt very incredible.

There are always so many unexpected things in the endless universe, bringing endless surprises to people.

Of course, the universe is so big, and humans are definitely not the strongest race, nor the smartest race. Even the most narcissistic person has to admit this.

But now, a civilization has developed without fire... They have overcome difficulties that are unimaginable to humans.

Overall, it is definitely stronger than humans.

This is just a planet that humans encounter casually. In the endless universe, will there be a more powerful race like the Nix civilization?

Of course! The Nyx civilization is definitely not the strongest civilization.

It is a civilization that has been eliminated by the "Great Filter"!

Just thinking about it, Yu Yifeng felt a chill...

A feeling of extreme insignificance suddenly arose in his heart.

The bright starry sky and the vast universe. If we didn't step into the starry sky, humans would never know so many strange and weird things. If we don't step into the starry sky, human beings will always be addicted to their own fantasy land, fearless and ignorant...

At present, there is only so much historical information about the Knicks civilization in people's hands, and it is not very complete.

There are still a lot of mysteries that have not yet been revealed about the declining Knicks civilization...

How did they develop? How did it evolve into modern civilization? How did it decline? To this day...it's still an unsolved mystery.

But Yu Yifeng is not in a hurry, and humans are not in a hurry either. As long as they search slowly, they can always find some clues...

Even if you are anxious, you cannot be impatient, everything needs an opportunity to promote...