Three days went by in a hurry.

except for going to the toilet, everyone was confined to their seats. It's like going to jail. It's a hard thing to do.

Gravity is decreasing bit by bit. When the centrifugal force is completely equal to gravity, people will experience the feeling of complete weightlessness.

The novelty of tourists has long gone, replaced by an inexplicable uneasiness and irritability. It's been three days. No matter how beautiful the scenery is, I'm used to it. The excitement at the beginning has become boring.

Weightlessness, which looks funny and funny, is actually a terrible thing.

First of all, the blood pressure of the head will rise, and the legs will begin to swell. There is an image of the medical term called "pig head and bird leg syndrome". It's called "Charlie Brown effect".

Secondly, because the brain loses the shackles of gravity and floats in the brain, it may lead to blurred vision. These symptoms are collectively referred to as visual impairment and intracranial pressure syndrome.

No matter how advanced the medical technology is, these diseases will not disappear completely, so the elderly and underage children are not allowed to go into space.

In this case, the tourists become extremely silent and speak softly.

Boys can only pretend to be brave, and girls become real ladies.

"Mr. Zhang, do you have a feeling of panic? I don't feel very comfortable

"No, just get used to it. You can take a little medicine, such as nitrous oxide

"I've had it, and I still feel terrible."

Zhang Yuan said with a smile: "in addition to physiological factors, there are also psychological factors, which are a bit similar to wilderness phobia. The main reason is that this place is open to space. When you get back to the ground, it will be fine again. "

This girl, who has just known for three days, vomits her tongue, but her face is not very good.

In fact, it's not just her, it's almost everyone.

Perhaps she recalled that it was in the boundless universe. There is only a thin layer of glass between man and the universe.

There is nothing outside, nothing but deadly radiation.

Any little mistake can make the whole batch of people die.

Or maybe they suddenly look back and look down at the earth from an altitude of more than 30000 kilometers. After entering a broader view, they will find that the earth is really too small, just a small stone floating quietly in the solar system.

Almost all human beings live and multiply on this small stone.

Human beings have created countless stories here.

Including four ancient civilizations, eight wonders, four world wars, countless love and hatred

But the earth is too small. All history, culture, religion and war are just stories on small stones.

There's really not much difference between humans and bacteria.

All the intrigue and infighting have become the mutual phagocytosis of bacteria.

The head of the coalition became the head of the bacteria.

The richest man in the world, equivalent to the largest individual in bacteria.

And then what?

Which bacteria died, which bacteria got a mate, which bacteria were shining public admirers Even if we have conquered the earth completely, what can we say about this doting mother?

The outside world is so big, so big!

This wonderful contrast, let them conquer the natural pride a few days ago, completely burned to ashes.

A few hours later, in silence, the world-famous "Tenglong" Space City arrived.

"So small, why so small..."

People's first reaction is that this space city is so small.

Mr. guide said: "it's not small. It's one kilometer in diameter! After all, it's an old equipment 100 years ago. At the beginning, there was no space elevator. It's very difficult to build this space city by relying on the propulsion of rockets. "

Gravity free experimental area, plant culture area, and circular living area, these materials are very familiar to the public for a long time.

Because of its early age and old facilities, this space city has gradually become a place for sightseeing and transportation, as well as an interstellar port for cargo transportation, without much scientific research equipment.

Small, plus cold, means no sense of security.

Even if you get to the destination successfully, it doesn't inspire the enthusiasm of the tourists. We just looked at it symbolically, only the guide kept introducing it.

"Pupucao was born in this space city. It is known as" the gift of space to mankind. "

"If you live in a gravity free zone for a long time, you will grow very tall. It's very possible to stay in space for a period of time, five centimeters long and five centimeters high... "

No matter how emotional, people's reaction is still not big.

There are a lot of people taking photos. There is already an earth network in this space city.

They "click click" to take photos and upload them to the circle of friends. It's good for relatives and friends to admireAnyway, no matter what, you have to pretend to enjoy it. You can't say it's not fun if you spend money, can you?

The vast majority of people were completely scared out of their wits after going to space once, and they never dare to go up for a second time.

Human beings have evolved in the earth for millions of years, and they have a certain grasp of where they live, even if they are self righteous.

It's not everyone's will to abandon the gentle harbor and live a lonely and nervous life.

Zhang Yuan sighed, this kind of thing has experienced many, also got used to. Anyway, there are so many people signing up for space tourism that they don't need to return customers.

He looked back and said with a smile, "Ms. Li, we are going to follow the team to the moon soon, so let's say goodbye here."

The girl, who had been in the same carriage for three days, asked, "Mr. Zhang, I have one last question for you."

Zhang Yuan said: "I was thinking, you may be a reporter? It seems that you have this characteristic in your every move. "

The girl picked her eyebrows and said with a smile, "you found out! But I don't mean to interview you. I just want to know privately why you and your companions want to leave the solar system and go so far away

Zhang Yuan thought about it and replied, "for your question, my answer is, I don't know."

"I don't know?" The girl looked puzzled.

"Yes, we don't know. I don't know the world outside the solar system, so I want to see it. Do you see the earth under your feet? Do you think our home star is very small, just a very common sapphire

"Yes, very small." The girl then sighed, "when you come to space, it seems that the whole person's mood is a little different. It seems that there is a sense of seclusion Although I still feel very scared. Thanks to so many space workers. I finally understand why their wages are so high. "

Zhang Yuan continued: "we don't know how vast the starry sky is. We want to know."

"We don't know what the earth will be like in three thousand years. We want to know."

"I don't know. It's our motivation."

"We have to know, we will know."

There are always a small number of people who are willing to pluck up the courage to bounce high from the small stone, lift their heart, stand on tiptoe, stretch out their fingers and touch the deadly and boundless starry sky.

Even at the cost of life.

The woman was silent for a while and said with a smile, "your answer is really philosophical. I'll write it down. Can I send it to my circle of friends? "

"Better No more! " Zhang Yuan felt that he could not afford to lose that face.

Several people laughed.