The Green Light Civilization could not have imagined that the "amazing" new human civilization, which seemed to have a higher level of technology than them, would not be able to leave the solar system!

Humanity is frantically struggling with the survival of an entire civilization.

In the following meetings, two basic lines of survival were established:

First, bomb the ships of the Green Light Civilization down with nuclear bombs to stop them from detonating the sun! As for the issue of the unknown fleet behind, we can only take one step at a time and consider it later.

Second, if the bombing program fails, humanity will retreat to the second best thing and force a struggle through the Noah spacecraft to see if it can survive the supernova......

In short, humans need to be prepared for both paths. For the time being, people can't think of anything else......

Ding Yidong and his colleagues have taken over the issue of nuclear bombs, and now people are mainly thinking about the situation after the failure of the bombing plan.

That is, the last thing you want to face - supernova!

"I think it's too late to start building a radiation wall now, instead of waiting for the results of the bombing program to come out!"

“…… Of course, the thicker the better, a thousand or even 10,000 meters! ”

One of the scientists stood up and said loudly, he was in a state of extreme agitation.

"Moreover, our spacecraft can no longer float in the air, we need to collect Martian resources as much as possible and build a thicker radiation wall!"

Yu Yifeng also nodded, and if the spaceship floated again, it would be a waste of time and a waste of life. It would be a joke if Noah had resisted the supernova unscathed, but humanity had died due to gamma radiation.

"Yes, you have to prepare as early as possible!"

It was Dr. Roman who spoke, and his expression was also very serious, "I'm going to talk about radiation protection materials now. As we all know, the Martian virus has a very good radiation-resistant capsid, which is an organometallic metal that is 13 times more radiation-resistant than ordinary lead plates! ”

"In the biological laboratory, the research of this new material has made good progress, and it may be used to build a radiation-proof wall......

"And when the metal melts, it absorbs a lot of heat."

Yu Yifeng's heart moved, this is good news!

Gamma rays are very penetrating, and the intensity of gamma rays with an energy of 1 mev is only half as it travels a hundred meters in the air. And it can penetrate lead plates several centimeters thick.

Generally speaking, the higher the atomic weight of the metal, the better the radiation protection. However, due to the price of metal, lead plates are commonly used in laboratories.

But the gamma rays of the star explosion, the highest energy can be up to 100tev! Such an energy level is completely the use of brute force, which can directly heat the metal plate to vaporization or liquefaction, and it does not care about the lead plate or uranium plate, and directly and violently destroys it......

On the one hand, humans have to hide behind Mars and use the entire planet to shield them.

On the other hand, it is necessary to strengthen the construction of radiation-proof walls, and it is necessary to build countless radiation-proof walls in a crazy, rude and barbaric manner!

"We just have to block the living area and the industrial area with a wall. Elsewhere you can only give up. This is the voice of a construction engineer.

Because of the expansion of space inside the spaceship, the surface area inside Noah is extremely large, and it is impossible to enclose it all. People can barely cope with the more than 2,000 entrances and exits inside and outside the Unicom.

The largest entrance, with a diameter of 34 meters, is located in the upper middle of the Noah, while the smallest is only a few tens of centimeters.

The area where people take refuge must be completely isolated with a radiation-proof wall, and preferably not within the direct reach of these entrances and exits.

And the rest can only believe in the Noah unconditionally...... If the Noah is cracked, no matter how thick the radiation wall is, it will be useless, and humanity will definitely be doomed.

Think about it, under the action of ultra-high energy, even planets with a diameter of several thousand kilometers can be completely destroyed. Even if the radiation wall is tens of thousands of meters thick, what is the use?

“…… Is there anything else you would like to add? Still have any questions? ”

The matter is urgent, although there are still about four months to go, Yu Yifeng has already deeply felt the urgency of time. If there is nothing to add, he just gives the order.

"I think we also have to think about what happens if we survive."

"If it fails, everyone will die in an instant, there's nothing to worry about, what if it succeeds?"

It was Wang Yufan who spoke, he pondered for a moment, and said with some anxiety: "At that time, the entire solar system will not exist, we will not get any resources to replenish, and we will face an empty solar system." ”

"Unless...... We can fly to another star! ”

"But we can't do it with the technical conditions! Even if our spacecraft flew to Proxima Centauri, it would take tens of thousands of years! ”

On the contrary, if the sun explodes, Noah and humanity will face an empty solar system, and there will be no more supplies, and humanity can only starve to death in the galaxy.

Yu Yifeng frowned and thought about it, there is really no particularly good way to solve this problem...... Tens of thousands of years of flight time, too long.

Materials, we must frantically replenish supplies, without supplies, human beings cannot live!

In other words, in the past four months, human beings have to mine like crazy, using all the tricks to mine, and how much to mine!

"What a ......" Yu Yifeng scolded in his heart, fortunately they have been mining for nearly three years. The material reserves in the Noah are quite abundant, and if you save a little, it can last for at least two or three hundred years.

But what will humanity face in two or three hundred years? How can human beings survive without material resources?

"On this issue...... I just designed a simple model. ”

"This problem doesn't really come up."

It was Dr. Rimbaud who spoke, and he gestured with his pen, "If our Noah hadn't exploded due to the high heat and pressure, it would probably have been blown away...... Blown directly out of the solar system. ”

"That's because Noah is very, very small, even smaller than a hydrogen balloon, so much so that it can easily float in the Martian atmosphere. I'll take a ping-pong ball as an analogy, what happens if a nuclear bomb explodes next to a ping-pong ball, and the ping-pong ball doesn't explode? ”

"It will be blown away by the shock wave from the explosion!" Dr. Rimbaud gestured

"And so on our Noah. The explosion of a star creates a powerful and endless light pressure that will quickly propel the ship, accelerating it to sub-light speed, or even close to the speed of light! ”

Thus ...... Escape the solar system! ”

This truth is very simple, but everyone will not expect it for a while, and Dr. Rimbaud will be the first to mention it.

In other words, if it can really survive, Noah will at least be in motion, and humanity will not be trapped in the empty solar system and waiting to die.

Many scientists are trying to build models and analyze specific results. Noah's overall density is so small that it's about the same as interstellar dust, and Rimbaud's words make sense.

“…… According to the theory of supernovae, it is indeed possible to push the surrounding interstellar dust out at nearly the speed of light. If Noah hadn't exploded or melted, it would have been pushed out by endless gamma rays...... Accelerate to sub-light or near-light speed! ”

"If we find a suitable planet to live on during the movement, we can use the Transcendence Deceleration scheme to quickly slow down the spacecraft!"

Talking about this, many people were so excited that this was a real interstellar voyage, and it was so inexplicably realized?!

However, people still have to be prepared for a protracted war, and no one knows where Noah will be blown or how many years it will be adrift before it encounters a planet.

No one knows, will the Noah explode?

Mining, or mining!

In the end, Yu Yifeng officially clapped his head and said, "Then, prepare with both hands, two plans, start immediately!" ”