Chapter 219: Spacewalk
Thick rocket, erected above the launch site.
A new round of astronauts preparing to go into space is having a farewell party before boarding.
I already have a manned space experience, so this time a lot of work is more calm.
Zhang Xingyang sat in the audience and applauded vigorously.
This manned mission is more than the first space mission.
Because, on the next manned mission, it is very likely that the core module of the temporary space station will be launched.
The young and excited young people handed over the flowers in their hands to the two astronauts who were about to go to space.
This time, the manned space mission, which is about to go into space, is Fei Junlong and Nie Haisheng.
"Thank you."
After receiving the flowers, the two reported to the command center that they were ready for a space mission.
In front of everyone, the two boarded the vehicle to the launch tower.
After that, take the elevator of the transmission tower and rise to a height of tens of meters.
At this time, the two of them were already wearing neat spacesuits and could borrow mechanical assistance.
Therefore, compared to engineers who still rely on their own physical strength, it is easier to enter the rocket.
After entering the orbital module, the two sat quietly in a special space seat.
Skillfully connect various interfaces on your spacesuit to the spacecraft.
A communication system connected to the command system.
After reporting on its status, the ship entered the final inspection phase.
Thirty minutes later, all preparations were made at the launch site.
Quietly waiting for the moment of launch.
At nine o'clock in the morning, the scheduled launch moment came.
With the command of the commander-in-chief, one of the most powerful propulsion devices in human history sprayed red and blue flames.
Tens of thousands of liters of fuel per second undergo a violent chemical reaction in the combustion chamber, producing more turbulent high-temperature and high-pressure gases.
Propelling itself, struggling to break free from the gravitational pull of the planet.
For the sake of these two astronauts, dozens of monitoring stations around the world, several survey ships located on the ocean, and thousands of staff have taken action.
It ensures the smooth progress of the launch mission.
120 seconds after launch, the escape tower at the tip of the rocket that was used to escape at the beginning of the launch was discarded.
160 seconds after launch, the first and second stages of the rocket were successfully separated, and the first stage of the rocket fell into the deep sea, and the rocket had already flown to the edge of the atmosphere.
In the command center, everyone is nervously busy.
Prepare for a call between heaven and earth.
In the early stage of launch, due to various interference factors, the communication signal on the spacecraft was disconnected from the ground command center.
This time, the situation is even better.
After all, astronauts are two people, and they can chat with each other to relieve psychological pressure.
When it was launched for the first time, there was only one person, and the psychological pressure on the astronauts was even greater.
"How did it feel to ride a rocket for the first time?" Fei Junlong, who felt that the rocket under his butt was getting more and more stable, said to Nie Haisheng beside him.
Nie Haisheng said with a smile: "It's never been better! ”
Although, in the past, when they were training on the ground, they also carried out acceleration training, and they are already familiar with this state of overload.
However, the overload that the instrument is able to simulate is actually a bit smoother.
It is not as strong as when the rocket takes off.
At the time of its first liftoff, the rocket was overloaded with even 9 Gs.
It's almost the limit of human beings.
If it weren't for the spacesuits they were wearing, which could reduce the pressure on their bodies to a large extent, they would have had insufficient oxygen supply to the brain and thus fainted.
At 9:12, a smooth communication link between heaven and earth was finally established.
The command center can learn about the physical condition of the astronauts from the radio waves.
After learning that the astronauts were in good physical condition, everyone breathed a sigh of relief.
At this time, the spacecraft has not yet reached the predetermined altitude.
At 9:17, the rocket reached an altitude of about 200 kilometers, and the ship's arrow was successfully separated.
The spacecraft began to fly in the Earth's low-earth orbit under its own power, while constantly raising its altitude in circles of elliptical orbit.
At 9:29, the spacecraft entered the intended orbit.
Fei Junlong looked at the almost dark space outside the porthole of the spaceship, and was surprised by the beauty of space.
After admiring it for a while, the two began their first work.
This is the first time that the spacecraft has used a life cycle system, which allows astronauts to no longer wear spacesuits with life-supporting devices while in the capsule.
In the cabin, you only need to wear ordinary clothes to be able to move.
Of course, even ordinary clothes are actually not ordinary.
Ordinary plush clothing, like ordinary stuffed clothing, is actually not suitable in space.
Because this kind of clothing, no matter how well it is made, it will shed hair.
And these tiny plushs, because they may be accompanied by air circulation, can cause all kinds of problems.
The two spacesuits helped each other complete the change.
Nearly an hour had already passed just by changing clothes.
In the process, the spacecraft continues to increase its altitude, reaching an altitude of 320 kilometers.
"It's time for us to eat."
Nie Haisheng asked.
"On a budget, it's like this." Fei Junlong looked at the small display on his arm and said.
This space mission, compared with the first spaceflight, has a lot more content.
For example, the project of experimenting with space eating.
Last time, although Yang Hongwei also ate in space, because he was wearing a spacesuit all the time, the food was relatively simple to eat, and it was fed directly to his mouth.
But even so, Yang Hongwei ate a lot of things at that time.
For example, Babao Rice, Kung Pao Chicken, and even because it was the Mid-Autumn Festival at the time, I also ate a few small moon cakes!
As for this time, the two of them floated in the cabin, without any assistance, and ate their meals.
Of course, their conditions are different from Yang Hongwei, who eats ready-to-eat food, that is, cold rice, and they have a food heating device.
Finally, you can have a hot meal in space!
Of course, even if this is the case, eating is a disagreeable thing.
Because in space, the influence of gravity is weak.
So when they eat, they need to tie the plate to their legs, or fix it somewhere, before they can eat.
When they were on the ground, they spent a lot of time training themselves on how to eat.
Fei Junlong used a pair of special scissors to cut open the heated lunch box, scooped up a spoonful of fried rice with a spoon, and stuffed it into his mouth.
Although the taste of food is no different from what you can eat on the ground, in the environment of space, eating is very interesting.
Nie Haisheng, who was on the side, had already begun to eat dessert after dinner, freeze-dried ice cream.
Drinking water, compared to the ground, is also interesting.
Nie Haisheng took a bite of freeze-dried ice cream and took a sip from the water balloon floating in front of him, and the small water balloon floated into his mouth.
Because space is not affected by gravity, the water polo is almost a standard circle.
After Nie Haisheng finished eating, he looked at Fei Junlong, who had not finished eating, took the camera on the bulkhead, and began to shoot the scene of eating in space.
In the spaceship, the residue from eating is also sucked up with a special hair dryer to avoid all kinds of floating objects in the cabin
After eating, the two of them rested for a while.
After all, since nine o'clock in the morning, the two of them have hardly had time to rest.
It also took almost an hour to eat at noon.
Resting in space is not such a simple thing.
Although the spine is more comfortable because of the gravity environment, there is another problem.
That is, when you are resting, you will keep floating in the cabin if you move a little.
So both of them got into a special sleeping bag, which was locked together with the bulkhead with a rope and a hook.
In this way, there is no need to worry about the possibility that people are sleeping and their bodies are floating around in the cabin.
After the break, it was about three o'clock in the afternoon.
After some physical activity, the two began to work busily.
The first thing to do is to conduct an on-orbit interference force test.
Speaking of which, it's actually relatively simple.
That is, to verify the interference of astronauts with the attitude of the spacecraft when they pass through the various compartments of the spacecraft.
As we all know, the action of force is reciprocal.
When astronauts cross between two different cabins, they will inevitably use some force to support themselves.
And this force is a reaction force to the spacecraft.
In space, because there is no air friction, a little force can cause a large impact on the spacecraft.
"The first pod test, begin!"
With an order from the ground command center, Fei Junlong slowly stroked the bulkhead of the spaceship, controlling his body and slowly floating forward.
For mobile training in space, although it has also been carried out many times on the ground.
But after all, there are many differences with space.
Fei Junlong didn't dare to be sloppy.
But fortunately, the spacecraft's adaptive attitude balance system is still very powerful, and there are no forks in the process.
Fei Junlong successfully passed through the junction of the two compartments and entered the orbital module.
Next, he will conduct a lot of scientific experiments in the orbital module.
Among them, there is the cultivation project of space vegetables.
This in itself is also an attempt to recycle the space ecosystem.
Vegetable varieties with a relatively short growth cycle are used, including small greens that can grow into edible vegetables after seven days of planting.
This time, they will be living in space for about eight days.
Not surprisingly, by the time they returned to Earth, the greens were already edible.
Of course, because they didn't carry any kitchen utensils this time, they couldn't actually eat in space.
In addition to this, there are many space experiments.
Including the breeding of biological strains, the cultivation of metal crystal growth and so on.
And Nie Haisheng also has a lot of tasks, including the release of a companion satellite.
On the side of the spacecraft, a small satellite was released.
On such a small satellite, high-resolution cameras and communication equipment are integrated.
Able to assist with some observation of the exterior of the ship.
Because of the special nature of the work of manned spacecraft, two astronauts cannot rest at the same time.
There is always an astronaut on duty.
In case of some unexpected situations.
The day after the manned spacecraft went into space, the period of time when the two worked together.
Another dangerous experiment began.
It could even be said that this was the most dangerous mission of the mission.
That's a spacewalk!
For a spacewalk, there are many technical difficulties to overcome.
First of all, there is the problem of opening and closing the hatch and entering and exiting the cabin.
This is followed by the astronaut's extravehicular walking suit.
Finally, there is the possible connection problem between the astronaut and the spacecraft.
It can be said that there are many problems and the danger is very great!
After the completion of oxygen absorption and nitrogen discharge.
With Fei Junlong's assistance, Nie Haisheng put on a full set of out-of-cabin walking clothes.
This set of extravehicular walking clothes is a product independently developed in China.
In fact, the spacecraft also carried a set of "Sea Hawk" extravehicular walking suits produced by Damao.
Once there is any problem, Fei Junlong has to put on that out-of-cabin walking suit to assist.
Fei Junlong made a gesture to Nie Haisheng.
The airlock was then pushed out, and the door on one side was closed
In the airlock cabin, the pressure began to be slowly depressurized.
When the pressure in the airlock cabin reached a level close to a really good level, it was time for Nie Haisheng to go out.
Nie Haisheng was excited and cautiously approached the exit hatch.
Use the tool to slowly open the exit hatch.
Then the darkness and starlight in the sky revealed through the small hatch.
The special optical glass design allows him to resist those ubiquitous cosmic rays and see his situation clearly.
This time out of the cabin is not just an experiment.
Nie Haisheng still needs to complete one task, that is, to lift the nail arm of a camera to complete the lifting work.
Thick hands, tightly gripping the door of the airlock,
It's as if if you let go of it all at once, you'll drift into the dark space where you're helpless.
After cautiously walking out of the hatch, Nie Haisheng raised a small national flag in his right hand and waved it a few times at the camera that was broadcasting live.
Above the ground, it is now a sea of passion.
Everyone saw that their own astronauts completed the first space capsule.
After stepping out of the space capsule, Nie Haisheng relaxed a lot.
After a brief hello to everyone in the live broadcast, I started to finish my work.
With the tool that I carried with me, I adjusted the position of the camera a few times.
The work is not difficult, it can even be said to be simple.
But he was in space, and the difficulty was too high to be believed on the ground.
Nie Haisheng took a few minutes to follow his path back to the airlock cabin.
The hatch was closed, and the air pressure in the airlock began to rise slowly.
This spacewalk can be said to be very beautiful! (End of chapter)