Li Zhendong was surprised in his heart, but looking at Zhang Yuan's face, he shouldn't be talking nonsense.

Moreover, working on a project with a professor at the university sounds much more reliable than his "game".

Inexplicably, Li Zhendong wanted to take refuge in the other party.

However, he can't pull his face at all!

He added, "What about the papers? Have you ever thought about it? I'm going to take a graduate school on the spaceship, and undergraduates like us may be at the bottom of society, so miserable. ”

“…… I should have passed the grade point and passed the graduate exam, but I didn't have a particularly good thesis, where did I get a good thesis for undergraduates...... It's annoying! My dad didn't bother to guide me! ”

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

If his paper is successfully published in Modern Science, as long as the written test score is passable, generally speaking, there will definitely be teachers who want him.

A journal of the level of "Modern Science", the average university professor, it is not bad to publish such an article in a lifetime.

"Have you decided what major you want to study in graduate school?" Zhang Yuan was a little embarrassed, "I have already submitted a paper to Modern Science, and if it can be published, I should be able to add a little interview score." ”

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

While the two were chatting, there was a burst of girl's happy screams from the next place.

"The Sun!"

"What a beautiful sun!"

It's the sun that has risen over the horizon.

Witnessing the sun at an altitude of several hundred kilometers reveals that it becomes unusually bright.

The position of the sun became very accurate, without any halo, emitting a harsh and domineering white light.

If not shielded by radiation protection materials, this solar radiation can easily cause sunburn and even damage the DNA of human cells, causing permanent damage.

Because of this, human astronauts in the old era were not allowed to go to heaven until they gave birth. However, with the improvement of radiation protection materials from generation to generation, there is no such regulation.

There were also a few dark clouds underneath that were bursting with lightning, flickering like blooming caryophyllus. Sometimes you can see lightning in five or six places in different clouds, illuminating the whole cloud.

These views are not visible from the ground.

The girls screamed excitedly: "These clouds are so small, they are not the same as what you see on the plane!" ”

"It's definitely different, the plane is only a few kilometers high......"

"It's kind of like a cotton ball exploding!"

"If we really fall from this height, we will become a ball of fire, like a meteor. Burn alive, not fall to death! One of the boys threatened in a very wicked way, "Can you imagine being chared?" ”

"Ahh

The chirping and shouting, coupled with all kinds of panic screams, made Zhang Yuan laugh involuntarily.

Perhaps, when he first took the space elevator, he was in the same mood.

Over the next few hours, with a large increase in altitude, it was already possible to see the entire Eastern Hemisphere.

The snow-capped Himalayas are vast and desolate; The reddish-brown vortex above the Cavill Desert carries a primordial mystery; The forests of the Southeast Asian archipelago sparkle like emeralds......

It's exciting, it's really exciting!

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

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

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

The current altitude is 600 km.

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

The Earth is big, too big!

Even the octagonal building, the largest building in mankind, is as insignificant as ants.

But a little human being, from this angle, can easily see every outline of the ball!

This strong contrast creates another visual impact. Looking down like a god makes everyone feel a strange pride that the whole world has been trampled under their feet.

Human beings have developed to such an extent that the Tower of Babylon leads to the boundless sky, and the incomparably powerful power of nature is really ...... Incredible!

What is globetrotting compared to space travel?

Hearing the exclamation of the passengers, Zhang Yuan sighed: "It's good to be young." ”

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

The girls next door are still chattering and excited, looking for famous buildings and natural landscapes on the surface.

"It should be Donghua City......

"There—the imperial capital?"

"That mountain is Mount Everest, right?"

"No, it should be Nanga Bhava."

"That's supposed to be the ...... of the Curved Island."

It's a pity that the Great Wall, one of the Seven Wonders of the World, can't be distinguished with the naked eye, and everyone thinks it's a pity.

However, with Warwick's P888 mobile phone, I was able to shoot the Great Wall.

There are also several wide asphalt roads, which can be faintly seen because of the contrast with the surrounding environment, like strands of hair.

The girls were excitedly discussing, taking pictures of pictures, cheering and cheering.

……

After a few hours, the tourists finally lost interest and fell quiet again. There is no Internet here, and there is no way to post on Moments. If you are interested but have no way to share, you are in a panic.

"That...... Handsome guy? ”

Zhang Yuan and Li Zhendong glanced at each other.

What about me?

I'm talking about it!

“…… Handsome guy, are you the one, that Zhang Yuan? The one who donated! You're an astronaut! The other party looked excited.

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

The girl on the other side glanced at him and said excitedly, "...... At that time, I happened to be watching the live broadcast, I really didn't expect you to be an astronaut, don't you want to stay on Earth and attack the entertainment industry? ”

"When did I say I was going to attack the entertainment industry? I never had this intention......" Zhang Yuan coughed and replied, "I will follow the spaceship and leave the solar system." ”

"I knew it! How could the son of a great scientist do such a boring trick. Haha, I'm not saying that being a star is bad, but the social value created is definitely not as good as that of scientists. Can I post on Moments to clarify this fact? ”

"Send it, it's okay."

The girl clicked on her mobile phone and found that there was no network, so she had to give up.

She seemed to see that Zhang Yuan was a little embarrassed, and asked a very good answer question again: "Well, I have a question for you, outside the window, what are the ring-shaped, bright devices?" ”

Zhang Yuan replied: "That's an ion propulsion device. When we reach geosynchronous orbit, the linear velocity is about 3.1 kilometers per second, and this part of the lateral linear velocity is provided by the electric propulsion engine, which can reduce the lateral deformation of the elevator track. ”

"Oh......" the girl seemed to understand.

Zhang Yuan smiled.

In fact, on the "Tenron" space city, there are more and more ion engines to maintain the orbital altitude of the space city.

Think about it, if a person pulls a hydrogen balloon and gets an upward pull, the hydrogen balloon will be subjected to a reaction force, which is a downward pull.

In the same way, when the freight elevator climbs up the cable track, it will pull the height of the space city down. Therefore, it is necessary to rely on the jet fluid to propel the space station into a synchronous orbit again in order to maintain dynamic equilibrium.

Even if the space elevator has been built, it still has to be propelled by working fluid to maintain balance, what a tragic thing.

But this is already the best way to climb the gravitational well, and who called the space elevator not a rigid body?

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