Chapter 54

The transport spacecraft made a total of four major circles around the moon before it slowly adjusted its orbit and officially docked with the space port.

This technology is not too difficult. It is similar to the docking of space station. It is divided into four stages: long-range guidance, short-range guidance, final approach and docking.

After so many years of development, the technology has been quite mature.

"Attention, astronauts. The spaceship is about to arrive. Please put on your spacesuit, enter the vacuum chamber and line up to get off the spaceship in turn."

Zhang Yuan breathed out and put on heavy nano silver ion radiation protective clothing, which looked like a thick cotton padded jacket. He wore a thick glass cover on his head. After the inspection, he followed "you" into the vacuum chamber, and then got into a rail train.

"I'm floating up. Help me!" Behind him, a man's voice rang out from his headphones.

Because there is no air, even "swimming" this action can not be done, can only grasp the armrest to move forward.

If there is no place to borrow and no one to help, it may float permanently in mid air.

There has been such a terrorist accident, this unfortunate person just floating in the space, unable to borrow. The nearest handrail is only one meter away from him, but in any case, there is no way to move a bit. By the time the rescue team arrived, the guy had completely collapsed.

So today's spacesuits have a very small jet device that can jet air to avoid this phenomenon. Of course, this function can be used or not. Any matter in the universe is precious.

Zhang Yuan pulled the handrail and slowly pulled him down.

This guy called it "thank you.".

This is Longmen 7, the largest space port of mankind. All astronauts will enter the huge annular centrifugal force zone along the central axis of earth age.

Not only the air can transmit sound, any material can transmit sound. The roar of the rail train is transmitted to the ear through the armrest on the hand, which has a very strong rumbling feeling.

Earth times is the most proud work of wolf Design Bureau.

Zhang Yuan's father was once one of the main designers of the wolf Design Bureau.

In essence, it can be seen as a super large "balloon".

In addition to the use of high-strength metal for important structures such as the middle axle and engine room of the spacecraft, most of the other parts, including the ship wall, light sail and so on, are very lightweight nano flexible materials.

The universe is almost in a vacuum state, the pressure is almost zero, but the spacecraft is full of air, according to the standard atmospheric pressure, the pressure is 1.01 × 10 ^ 5pa.

The pressure difference between inside and outside is equivalent to 10 tons of material per square meter under the earth's gravity, which makes the whole spacecraft spontaneously expand to maintain its design shape.

The advantage of this is that the spaceship is very light, and it makes full use of the super tensile strength of nano materials.

Although the spaceship is huge, like a mountain, its weight is less than 800000 tons.

There are two girls whispering in the headphones, but they accidentally turn on a small range of public channels.

"It is said that the nano material on the wall of the spaceship is only 4 mm thick It looks very safe. What if it breaks suddenly? "

"How could it break? That's nanomaterials. It was expected that one millimeter would be enough, but for the sake of safety, it's four times thicker. "

Listening to their conversation, I don't think they have practiced in the space city. They are a group of new people.

Li Zhendong turned around and explained with a smile: "the spacecraft wall is a mixture of nanomaterials and aerogels. Just like reinforced concrete, nanomaterials are only 4 millimeters thick, but there are also aerogels lighter than air as load-bearing structures, so they add up to more than that thickness.

"The structure of the ship is not what you think. There is no atmosphere in the gravity free zone, where all kinds of material resources are stored. Only the circular living area has atmosphere. Inside is the honeycomb structure, which is divided into many small rooms, and the outermost part is uninhabited. "

"Every room has a pressure sensor. If there is an accident outside, it is difficult to affect the inside immediately. Don't worry, we'll rush to repair it immediately! "

"Are you a maintenance man?" My sister opened her eyes and turned her head.

She introduced herself very warmly: "Hello, my name is Li Yiyi. I'm a kindergarten teacher or Ha ha, painter

"My name is Li Zhendong. Everyone's surname is Li. I'm the same ancestor as you."

"Yes, ha ha!"

"We are all descendants of Laozi."

"Laozi?"

"Li Er!"

"Oh

Seeing that Li Zhendong is teasing his sister again and talking about quite boring topics, Zhang Yuan instinctively feels a little embarrassed for him. Can you talk about a normal topic and make it seem very cultural.

As for the maintenance personnel of spaceship, I think too much Ye Kaifu's skilled technicians are the real spaceship maintenance personnel.Although they have a little bit of technology, they will not encounter real problems.

"You are Zhang Yuan! You're an astronaut, too

Zhang Yuan's head bag, ah, have I become so famous? What's going on

A group of girls chirped around Zhang Yuan again.

Li Zhendong spread his hands and was robbed of the limelight. He was quite helpless.

The reason why there is such a strange job as "kindergarten teacher" is that half a million young people will inevitably get fired. In the spaceship, we encourage people to take contraceptive measures when they are passionate, but we will not force abortion. If they are pregnant, they can only be born.

In short, with the blessing of various high technologies, the first basic goal of a small society is self-sufficiency and the maintenance of the whole social form; the second goal is development.

During the conversation, the train turned a corner and slowly stopped.

Everyone swam into a large elevator again.

The elevator will go from the center axis of the spacecraft to the bottom of the centrifugal wheel, and give all passengers a certain lateral linear speed.

"Earth age" uses centrifugal force to simulate gravity. With a radius of 2 km, it wants to produce gravity similar to that of the earth at the bottom. Its angular velocity is about 0.071 rad / s, which is equivalent to one revolution in 89 seconds.

This angular velocity is not high, which means that the Coriolis force is very small, and human beings are very comfortable living in it.

"Drop", the elevator door finally opened, everyone entered a small room, took off their spacesuits.

The temperature is 24 ℃ and the air humidity is 50%.

Zhang Yuan stepped on the floor excitedly. The texture of his feet is similar to that of the carpet, but it doesn't lose its hardness.

What's more, it has a gravity similar to that of the earth, so it's easy to move.

However, these days in a state of weightlessness, the body is a little scattered bones, for a while and a half, walking a little hard.