Deep Space Fleet

The construction of the "Earth Age" has to consume 2.07% of the total human GDP each year. Over the years, the total cost has reached 159 trillion federal currency!

This is an extremely huge number. Over time, of course, ordinary people are unwilling.

You know ... many people on the planet are still eating soil!

Li Cheng sighed again: "The Deep Space Foundation has to prepare at least trillion trillion funds to pave a light path for the" Earth Age "."

"In the next 20 years, Jupiter's industrial base will collect at least a large amount of nuclear fuel, and its fusion energy can be used to launch long-range lasers ..."

Zhang Yuan nodded, thoughtful.

Earth Age, using dual sailing mode promoted by Guangfan and nuclear fusion.

Guangfan refers to the push of light pressure. When a photon hits a smooth surface, it can change the direction of motion like a ping-pong ball bounced off the wall, and give the impacting object a corresponding force to propel the spacecraft.

However, the light compaction of sunlight is too small to quickly propel a giant spaceship of the order of 10 million tons. Only large artificial light sources from the Moon and Jupiter's base can generate enough pressure to propel it.

Think about it, although nuclear fuel on Jupiter is inexhaustible, it still requires labor costs.

In addition, this optical path needs to be continuously emitted for 20 years. There are hundreds of thousands of laser emitting devices, and it must be continuously replaced. This is another huge amount of capital.

It is hard to imagine how Professor Qi Yuanshan, the "father of nuclear fusion", persuaded those savvy businessmen and sophisticated politicians.

Deep space colonization, this super-large-scale project, has no interest at all.

Even for hundreds, thousands of years, it is impossible to generate any benefits.

That's strange.

After chatting for a while, Li Cheng also felt a bit boring to talk about these things with the juniors: "Whether there is sufficient funding budget is a question that the bosses above should consider, and you don't need to take care of yourself. It is enough to be good."

He shook his head, as if thinking of something, just stopped eating. He got up from the dining table, went into his study, and thought about what went wrong.

Although Zhang Yuan was curious about the gossip in this regard, he could only stop seeing this scene.

After eating, Zhang Yuan whispered in private: "Your dad and my dad are really like a workaholic. Suddenly, what kind of inspiration came out, and then he got up and was busy recording. Do not disturb him at this time, Otherwise, it would be an angry meal or somehow. "

"indeed!"

Li Zhendong agrees very much: "Remember when I was young I asked my father why 1 + 1 = 2, do you know what he said, he even told me Piano's axiom, then I was still in kindergarten. I just doubt he had No common sense! "

"Have your sister been educated like this?"

"Have."

Li Zhendong exaggeratedly said: "One time, my sister asked him why the rectangular area is long by wide. He directly talked about some European-style space, inner product and other unknown things. Fortunately, my mother is a normal person. Otherwise, he will have to be mentally disabled. "

Zhang Yuan also laughed, and then remembered his father's strange style.

At that time, he was playing with Rubik's cube on the sofa, and his father was suddenly in a whim, and he rightly talked about a group theory with a seven- or eight-year-old child.

Yes, group theory, Gavaro spent the night writing a dissertation.

"It's just mathematics five hundred years ago, it's very simple. You learn this, and children will look at you!"

Zhang Yuan was so happy: "I want to learn, I want to learn!"

"... the group consisting of all operations is called a Rubik's Cube group. Obviously, the Rubik's Cube group is a non-Abelian group ... if it can be decomposed into a simpler product of subgroups, then the generator of each subgroup is constructed , It can prove its solvability. It has been proven that all Rubik's cubes can be restored in less than 20 steps. "

In this process, Zhang Qiming was so excited that he fully enjoyed the pleasure of being a teacher.

最终 But in the end, he found his son and looked at him blankly, unable to understand.

不 Can't understand?

Zhang Qiming uttered a swear word: "What a ... dumb!"

I don't know if he is talking about his son or himself.

Zhang Yuan sighed, these memories, remembering the feeling of resistance at that time, but rather missed.

It's been 3 years since my father's death, right?

Time passed so quickly. With the eyes open and eyes closed, 3 years passed. The deceased was stunned, and only the nostalgia left.

I saw Zhang Yuan was not in a good mood. Li Zhendong turned on the television and tuned to the children's channel. An animation was playing on it— "Wolf-infested raging sheep".

别 "Don't look at me as a bear ..."

I was very childish, but the little girl next to me was very happy.

Zhang Yuan asked again, "Are you gone, don't your parents feel bad?"

"No pain, don't you have a younger sister?" He pointed to a teenage girl near him and said heartlessly, "It's okay to regenerate a few in the future. Anyway, now that science and technology are developed, you can give birth casually, Can afford it. "

He continued: "If you think about it, if I do n’t go to the spacecraft and stay on the moon to work ~ www.readwn.com ~ I go home once a year during the Chinese New Year for three days each time and stay with them for two hours every day ... I spend 360 hours ... "

"Now, I stay at home every day to eat, drink, and accompany them for seven or eight hours a day, adding up to more than two hundred hours a month. The whole holiday has spent most of my life with me, what's the pity?"

Zhang Yuan scratched his head, what **** logic?

Alas, it sounds reasonable ...

妈妈 Mother Li smiled and cut some fruit for them. It seemed that she was used to Li Zhendong's neurotic remarks, "Zhang Yuan, don't go back today, live in our house, there are still empty rooms anyway."

"Ok."

Zhang Yuan nodded and sighed.

振 Li Zhendong's situation is very similar to himself, but the difference is that his parents are alive and his family is happy.

Zhang Yuan was a product of test-tube babies. Sperm was provided by his father. Eggs came from an unknown female donor in the human gene bank. Until now, he didn't know who his blood mother was, and he didn't need to know ...

But who doesn't like having a kind and kind mother?

When they were in college, their grades were similar. However, Li Zhendong is a **** of learning, playing and making troubles, and still has more than 90 points in the exam; Zhang Yuan is only a tyrant and needs more effort to get good results.

This is actually a gap in intelligence ...

but it does not matter!

Just thinking about it, Zhang Yuan took out his mobile phone and started to brush the "Super Brain" APP. Seeing those mathematical symbols, a strange sense of happiness rose from my mind.

I don't need to envy others, learning makes me happy, learning makes me grow!

As long as I can learn, I have the world!