One Thousand Nine Hundred and Fifty-Five, 400 Years of Theory

This result really surprised Ye Han. With a bit of curiosity and a bit of expectation, he put in the data and continued to calculate. After the super battleship continued to accelerate for two years, the speed could reach 15,000 kilometers per second, which is twice the speed of light. one tenth!

In other words, the super battleship only needs to continue to accelerate for 12.8 years to fly a distance of two light years. It only takes more than a hundred years to fly to Sirius, which is much faster than he expected.

And this is not the limit, the super battleship can continue to accelerate until the halfway point of the voyage!

Of course, continuous acceleration requires an astonishing amount of fuel. Be it a super battleship or an immigrant ship, they certainly cannot carry that much fuel. It is impossible to continue accelerating for more than ten years. So what about continuing to accelerate for one year?

He plugged in the data again, and the result was that after a year of continuous acceleration, the battleship could reach a speed of more than 7,000 kilometers per second, and it would take 41 years to fly one light-year... Well, this time is a bit long, and it would take 360 ​​years to fly the entire distance. Many years, but this data is much faster than 8600 years.

Ye Han hesitated and said, "The result I calculated is between three hundred and fifty to three hundred and sixty years. Counting acceleration and deceleration, it's four hundred years."

"What do you think?" Wu Han smiled, "Can you accept it?"

Ye Han grinned: "Commander, this is not about whether I can accept it, but whether the immigrants can accept it."

He counted on his fingers: "A person can last up to seven days without eating, and only three days without drinking. Although hibernation can reduce human metabolism, the reduction does not stop after all. Even if it is reduced by four hundred times, every thousand It is necessary to revive once every 200 days to restore the body and replenish nutrients. It is not until the body is well that it can continue to hibernate. If it is not double hibernation, 400 years of hibernation is equivalent to one year in reality. Calculated by reviving every seven days, everyone must wake up halfway. 52 times…”

He also wanted to say double hibernation. Although that thing can further reduce the metabolic rate, this method of hibernation is too dangerous. The death rate is close to one in ten, and the longer the hibernation time, the higher the death rate. Really use this method After 400 years of hibernation, only one immigrant in a hundred survives.

But waking up 52 times in the middle seemed not much more. Ye Han couldn't continue talking in the middle of the sentence. He could only swallow the double hibernation thing, found another topic and continued: "Commander , since it is an immigration fleet, there must be people, right? How many thousands of people are planned to immigrate? "

"It's not confirmed yet, but it's definitely indispensable."

Ye Han immediately became energetic: "Commander, interstellar immigration is a one-way ticket. It will definitely not work if there are fewer immigrants. It cannot support a civilization. If we immigrate 100,000 people, how much food will be consumed along the way? And on the way, how much food will be consumed? Consumption is still a small problem,

What about after arriving at Sirius? "

"We simply don't know to what extent aliens have developed in Sirius. Let's make a simple assumption that there should be four situations for aliens there. One is that they are developing well and have even begun to expand outwards; the other is that they are still developing. Yes, there is space power but the strength is not strong; the third is the degradation of civilization and there is no space power at all; the fourth is the complete extinction of the aliens who stayed there. No matter which situation we encounter, the situation we have to face is different. "

Wu Han signaled Ye Han to continue, and Ye Han took a breath and said, "If it's the first situation, then we absolutely can't bring the immigrants there. The most we can do is send a few warships there, but only a few warships will definitely be useless. It's best to stay put." .”

"The second and third situations are slightly better. You can bring immigrants, but you cannot revive the immigrants before defeating the aliens. Once our fleet loses, the immigrants must evacuate immediately. They must not fall into the hands of aliens under any circumstances! "

Wu Han nodded involuntarily. As a senior military official, he knew very well the consequences of humans falling into the hands of aliens.

"The last situation is the most ideal situation. The aliens have become extinct, leaving behind a habitable planet. As long as our immigrants land, they can establish settlements, gradually expand outward, and finally completely occupy the planet... …But the possibility of this happening is very small. I personally think that the first scenario is the most likely!”

"Also, although Sirius is 8.6 light-years away, we don't know if aliens have special communication methods. Maybe the aliens who stay there already know the situation in the solar system. Maybe the aliens there We have begun to form a fleet for expedition to the solar system!”

Wu Han's mouth twitched: "You kid, just say it if you don't want to, don't make so many excuses!"

"Commander, you must know that what I tell you is the truth!" Ye Han said righteously, "When the aliens came, we were still a planetary race, but when we get to Sirius, the aliens may stay on the planet obediently Wait until we get there? Of course it’s impossible!”

Before Wu Han could speak, Ye Han added: "There is a more important question. With our current technology, interstellar migration can take hundreds of years. Can our warships and spaceships withstand the aging of so many years?"

Ye Han's words simply poked Wu Han's heart, but Wu Han had to answer: "We are trying to solve this problem. As long as it is properly maintained, it shouldn't be a problem."

"What about weapons?" Ye Han asked again, "The half-lives of uranium-235 and plutonium-239 are long enough, and hundreds of years are not a big problem. However, the half-life of tritium is only twelve years. When the fleet arrives, only the atomic bomb will be left. Yes, all the hydrogen bombs have become dumb. Do you think we can defeat the aliens with only low-yield nuclear weapons, laser cannons and naval guns?"

Wu Han waved his hand: "Not only do you know about these problems, the higher-ups also know about them, and the higher-ups are studying ways to solve them. I believe that when the immigration fleet is built, these problems can be effectively solved!"

Ye Han hesitated for a moment, but still couldn't hold it back: "I still feel that now is not the time."

Wu Han sighed helplessly: "The higher-ups know that now is not the time, but can we afford to wait? We have already been invaded by aliens once. If it happens again, can we withstand it?"

Ye Han wanted to say yes, but he knew very well that there were too many surprises in humans' victory over aliens. If it were to happen all over again, humans might not have the last laugh.

Wu Han continued: "We do still have many problems that have not been solved, but as I said just now, the higher-ups are trying to find a way. If we really can't develop a better engine, we will put a few super engines on a ship. On the spaceship, everyone can think of ways to speed up... I think four to five hundred years is the limit acceptable to the higher-ups. No matter how slow it is, the higher-ups won't be able to agree to it even if you want... So don't rush to make a decision. Go back and think about it carefully. For a moment, it’s best to discuss it with your family before deciding, that’s it.”