Deep Space Planet Leader

So, fire star is not the focus of human attention on the planet, and there is only such a lonely space city above, mostly in the nature of scientific research and transit stations.

Fire star hobbyists are thinking about melting the two-stage carbon dioxide to improve the fire star atmosphere, in order to achieve the purpose of livability in the future.

"If the population explodes after human civilization, Earth and the moon can't live there, it will be possible to develop fire star... Compared with other planets, this planet is better for people to live in. . No extraterrestrial microorganisms have been found so far, and the safety is okay.” Senior Brother Zhao suddenly said.

Zhang Yuan responded: "I think that in the foreseeable future, there seems to be no such possibility. Because the growth rate of the civilized population is not high."

Within the scope of productivity, the population is of course the more the better, especially the high-quality population.

But capitalism is the contraceptive for population growth.

In the old days, limited by resource constraints, the population of Earth once stagnated at 7-8 billion for a long time.

After the fourth world war and the "light of nuclear fusion", the entire civilization once ushered in a wave of birth peaks. But now, the population growth rate has slowly slowed down, and the annual growth rate is less than 1%.

To grow from the current tens of billions of people to hundreds of billions or even trillions, it’s actually very difficult. For many families, having a second child is already a very painful thing.

As for the low-quality population of some countries, it is useless to have more.

Zhang Yuan suddenly have a thought: "If in the future, artificial uterus technology and robot raising are developed, do you think this pattern will change?"

Senior Brother Zhao shook the head: "The artificial uterus technology has liberated women and is a major technology that affects the entire world. With the artificial uterus technology, what feminist movement can finally stop."

"...but I think It still can’t change the fundamentals of population growth. Because the important thing for a young child is parenting, not the process of childbirth. Parenting consumes more energy than childbearing!"

"As for machine-raising, how strong is it? Artificial intelligence! Moreover, the ethical aspect may have to be discussed for a long time..."

"I am more worried about the uterine revolution strategy of some small countries. A large number of foreign immigrants will reduce the influence of the main nation. Conflicts between ideologies and cultures are likely to allow bad money to replace good money. This phenomenon has happened many times in history."

Zhang Yuan sighed, "Ai, indeed So."

Just like that, and after visiting the observatory for a while, Zhang Yuan suddenly discovered that there was an electronic reading room called "Xingchen Library" hidden here, and a few people were there. Reading inside.

He thought to himself that in such a place, people who can still enjoy loneliness must be top experts. Maybe you can try it in the future...

After the two of them visited at will, they turned around and returned to the rail car.

The terminal of this journey is the rear wing of the mother ship, where the nuclear fusion engine is located.

The nuclear fusion engine, its maximum ring diameter exceeds 400 meters. The tip of the iceberg alone is enough to make people feel shocked.

When he witnessed this huge monster, Zhang Yuan felt his heart start to become hot.

The long-term work here, the joy and sense of accomplishment, are definitely more intense than cleaning the cabin.

On a recent test screen, a group of blue and white plasma masses are discharging, and changes in various parameters are also displayed nearby.

Zhang Yuan squinted his eyes, and he saw a temperature marked above, which was about 750 million degrees!

"You are here!"

"Professor Ding."

Seeing a silhouette emerge from the room in front, Zhang Yuan hurriedly said hello .

Academician Ding is here to learn about the changes of various parameters, and happened to meet them.

"Zhang Yuan, it seems that you like it here. To fully understand this big thing, you may have to learn some mechanics, nuclear physics, and plasma. There are a lot of things to learn. "

Zhang Yuan is naturally quite active. "Can I do some work now?"

"Let’s read some papers first. If you don’t understand, you can ask Senior Brother. The trajectory of plasma turbulence can be monitored here, and the structure of the entire engine can be studied by the way, such as the thermodynamic value of the helium-cooled solid cladding, the effect of periodic impact on the low-temperature system helium turboexpander, etc. Subjects can be selected by yourself. I will open certain database permissions for you."

"If you fully understand the working principle of the entire engine, the rest of the space projects will be trivial to you."

Zhang Yuan complied, find your seat.

He fixed his body on the seat enthusiastically, trying to find some papers in the database.

Here, he can even read the control codes of various machines!

Of course, only reading permission, no modification permission.

Zhang Yuan was very pleased to discover that in the entire nuclear fusion control project, a lot of work was done by his own father. The curiosity in his heart and be eager to have a try are naturally greater.

He thought to himself: "The work in nuclear fusion sounds so lofty. If you let Li Zhendong meet, I don’t know how long it will be bragging..."

Nuclear physics, Similar to high-energy physics, it is a theory that studies the deep level of the microcosm. Nuclear physics tends to be applied horizontally, while high-energy physics tends to be more microscopic and deep-level theories.

But in this era, high energy physics has begun to decline.

The main reason is that what can be found clearly has gradually been found out, and what is not understood is still not understood.

In the 23rd century, Xia Country Academy used to spend a lot of money to build a larger collider, but the final result was that no particles beyond expectations could be knocked out, and this project was reduced to a The classic white elephant project.

The standard model based on the non-Abelian gauge field seems to have become the supreme realm of human understanding of nature.

According to some scientists' estimates, if you want to verify the higher Level 1 theory and find some physical phenomena beyond expectations, you need to build a ring solar system collider! In other words, the length of the collider has to circle the solar system once.

For humans, it is an impossible task.

This conjecture is called the "energy-level desert" conjecture.

Materials in nature will have completely different properties under different accelerator energies.

Under the energy of 10 electron volts, one can observe that the atom disintegrates and decomposes into nuclei and electrons.

In the range of 10^6-10^7 electron volts, people can observe that the nucleus disintegrates again and decomposes into neutrons and protons.

Under the energy of 10^11 electron volts, electroweak particles can be observed, which is the proof of the unified theory of electroweak.

Once the LHC in Europe can reach an energy level of 10^13 electron volts, the Higgs boson was discovered.

Xia Country’s collider, which consumed hundreds of billions of funds, once again raised its energy level to 10^15 electron volts.

And then?

There is no more, at 10^15 electron volts, no new physics is observed

But the "energy level desert" conjecture believes that at the energy level of 10^24 electron volts , There will be no new physical phenomena. According to the current theory, if you want to continue to study high energy physics, please increase the energy level by one billion times!

This is also the origin of the circumsolar accelerator, which requires an accelerator with a circumference of 100 billion kilometers to do this.

100 billion kilometers!

But this is not all of high energy physics. An accelerator of 1,000 billion kilometers may only be able to observe the unity of strong, electromagnetic, and weak forces, without gravitational force being wrapped in it.

If you want to thoroughly study quantum gravity or the legendary theory of everything, please build an accelerator with a length of 1000 light-years, that is, the circumgalaxy accelerator!