Deep Space Fleet

振 Li Zhendong was surprised, but looking at Zhang Yuan's face, it should not be nonsense.

Moreover, working with a professor in a university project sounds more reliable than his "game".

Inexplicably, Li Zhendong was a bit eager to take refuge in each other.

Alas, he couldn't pull his face at all!

又 He also said, "What about the thesis? Have you considered it? I plan to take a postgraduate study on a spaceship. Undergraduates like us may be the bottom of society, it is miserable."

"... I should have passed the grades and passed the postgraduate exam, but I don't have a really good dissertation. Where did the undergraduate get a good dissertation? Annoying! My dad was too lazy to guide me!"

Zhang Yuan scratched his head, not knowing what to say.

If his paper was successfully published in "Modern Science", as long as the written test scores are acceptable, in general, teachers will definitely ask him.

区 A district journal of this grade of "Modern Science", a general university professor, publishing such an article in a lifetime is considered good.

"Do you want to study any majors for graduate students?" Zhang Yuan was a little embarrassed. "I have already submitted a paper to" Modern Science ". If I can publish it, I should be able to add a little interview points."

"Why," Modern Science ", you?" Li Zhendong stunned again, and couldn't react for a while.

Just as the two were chatting, there was a burst of joyful screams from the girl next door.

"Sun!"

"What a beautiful sun!"

The sun is rising from the horizon.

Seeing the sun at an altitude of several hundred kilometers, you can see that it has become extremely bright.

The position of the sun has become very accurate, without any halo, emitting glare and overbearing white light.

If there is no shielding of radiation protection material, this point of solar radiation can easily burn people, or even damage the DNA of human cells, causing permanent damage.

Because of this, human astronauts in the old days were not allowed to go to heaven before giving birth. However, with the improvement of radiation-proof materials from generation to generation, there is no such requirement.

There were also several dark clouds erupting underneath the urn, flashing like dianthus flowers in full bloom. Sometimes you can see lightning in different clouds in five or six places, which illuminate the entire cloud.

These scenery are invisible on the ground.

The girls screamed in excitement: "These clouds are so small, they are different from what you see on the plane!"

"It must be different, the plane is only a few kilometers high ..."

"It's a bit like cotton **** are exploding!"

"If we really fall from this height, we will become a ball of fire, just like a meteor. It is burned alive, not fallen!" One boy threatened badly, "you can imagine becoming A coke scene? "

"what!"

The howling screams, coupled with various panic screams, made Zhang Yuan laugh uncontrollably.

Maybe, when he took the space elevator for the first time, he had the same mentality.

In the next few hours, as the height has increased significantly, the entire eastern hemisphere can be seen.

The white snow of the Himalayas is vast and desolate; the red-brown vortex on the Cavill Desert brings a kind of primitive mystery; the forests of Southeast Asian islands are sparkling like emeralds ...

Very exciting, really exciting!

Looking down at the whole earth, there is a sense of boldness that "the world is in my hands".

The vast earth really floats quietly in the universe, as in the photo.

The earth is really round and visible to the naked eye.

The current altitude is 600 kilometers.

According to a scientific survey, at this height, more than 90% of people will have an unparalleled sense of worship for the natural sciences, the motherland, and the space elevator.

The earth is big, too big!

Even the octagonal building, the largest building of human beings, is just as insignificant as ants.

But small humans can easily see every trace of the earth at this angle!

This strong contrast has another visual impact. Looking down like a god, everyone has a strange pride, and the entire world has been stepped on their feet.

Human beings have developed to such an extent that the Tower of Babylon, which leads to the infinite sky, is extremely powerful against nature. It is really ... incredible!

Compared to space tourism, what is it like to travel around the world?

Hearing the surprise of the passengers, Zhang Yuan said with emotion, "Young, how nice."

振 Li Zhendong nodded in agreement: "too-young, too-native."

女孩 The girls next door are still lingering and are very excited. They are looking for well-known buildings and natural landscapes.

"It should be Donghua City ..."

"There-Is the Imperial Capital?"

"That peak is Mount Everest?"

"No, it should be Nanga Bawa."

"That, it should be Wanwan Island ..."

I regret that the Great Wall, one of the seven wonders of the world, has no way to distinguish with the naked eye, everyone feels pity.

I used Warwick's P888 mobile phone to capture the Great Wall.

There are also several wide asphalt roads, because they are in sharp contrast with the surrounding environment and can be seen faintly, like silky hair.

The girls are discussing excitedly, taking pictures, taking pictures, cheering and cheering.

Uh ...

After a few hours, tourists finally lost interest and quieted again. There is no internet here, and there is no way to make friends. With interest but no way to share, I was panicked.

"That ... handsome guy?"

Zhang Yuan and Li Zhendong looked at each other.

How about me?

I'm talking about me!

…… "Handsome guy, are you the one, Zhang Yuan? The one who donated! You turned out to be an astronaut!" The other side seemed very excited.

Zhang Yuan touched his head, is he already so famous?

The **** the other side glanced at him and said excitedly, "... At that time, I was just watching the live broadcast. I didn't expect you to be an astronaut. Don't you want to stay on the earth and attack the entertainment industry?"

"When did I say I want to attack the entertainment industry? I never planned this ..." Zhang Yuan coughed a bit ~ www.readwn.com ~ replied: "I will follow the spacecraft and leave the solar system."

"I know! The son of a big scientist, how could he do that kind of boring trick. Haha, I am not saying that being a star is not good, but the social value created is definitely not as good as a scientist. I can send a circle of friends to clarify Is this fact? "

"Go ahead, it's okay."

The girl clicked on her cell phone and found that there was no internet and she could only give up.

似乎 She seemed to see Zhang Yuan a bit awkward, and asked a very good question again: "Well, I have a question for you, outside the window, what are the ring-shaped devices that will light up?"

Zhang Yuan replied: "That is an ion propulsion device. When we reach the geosynchronous orbit, the linear velocity is about 3.1 kilometers per second. This lateral linear velocity is provided by the electric thruster, which can reduce the elevator orbit. Lateral deformation. "

"Oh ..." The girl seemed to understand.

Zhang Yuan smiled.

In fact, there are more and more ion engines on the Space City “Tenglong” to maintain the orbital height of the Space City.

Think about it, a person pulls a hydrogen balloon to get an upward pulling force, and the hydrogen balloon will receive a reaction force, which is a downward pulling force.

The same reason, when the cargo elevator climbs up the cable track, it will pull down the height of the space city. Therefore, it is necessary to rely on the jet working fluid to advance the space station to synchronous orbit again in order to maintain dynamic balance.

Even if the space elevator has been built, it still has to use working fluids to maintain balance. What a tragic thing.

But this is already the best way to climb the gravitational well. Who calls the space elevator not a rigid body?

Human technology, in fact, is far from superb as imagined.