"Alright, next project, return to Earth."

Tang Chao pointed to a row of spaceships and said to the interface.

"Yay! It's finally time to fly the spaceship! ”

"I've just learned a lot, watch me make a perfect landing for you!"

"Haha, I feel like I'll be the first to land!"

"I'm not just going to land, I'm going to land a ten-ring!"

"You just blow it, I guess I'll land a nine ring."

Looking at the chattering crowd, Mr. Du strictly followed Tang Chao's testing process and started to assist.

"Okay, listen to the main points I explained, a group of three to return to the capsule......"

Seeing that everyone was arranged into the return capsule, Tang Chao smiled.

"I also want to land safely, even land a ten-ring, I want to be beautiful, this landing process is used for accidental demonstration."

The previous space experience and ground training equipment experience were all directly through a door, which is the kind that directly cuts the scene, but this time it is for them to experience the feeling of re-entry in the atmosphere.

After all, after training so much and experiencing so many feelings, you have to fly "really" once.

Astronauts need to operate a variety of instruments and equipment when performing tasks, but there are countless kinds of equipment in spacecraft, especially the early spacecraft control interface, which used to be full of buttons.

If the astronaut makes a mistake during the operation, especially the pilot, it is very likely that the plane will be destroyed and killed.

Therefore, astronauts must train in various simulated equipment on the ground before driving real space equipment into space, so that astronauts can be familiar with the operation procedures and adapt to different environments.

But when it comes to "different environments", spacecraft simulation equipment and real spacecraft are in different environments, and there is an insurmountable chasm here.

It's not even just a matter of the chasm, there are all kinds of dangers that may arise at any time, and in the history of human spaceflight, there are many astronauts who have died in the simulation module.

Du Kangsheng has used a similar simulation cabin before, don't look at him memorized the control process and button positions, but when he really entered the cockpit of the orbital shuttle, especially after the orbital shuttle entered space, the feeling was completely different.

This time he entered the virtual space to experience, he experienced both the ground simulation cabin and the "space simulation cabin", and compared the two sides, good guys, it was really a heaven and an underground.

Compared with the ground simulation equipment "advertised" to provide astronauts with various sensations such as motor sense, vision, hearing, and manipulation load, so that astronauts feel that they are really driving space spacecraft, the simulation cabin of virtual space is called a real simulation cabin.

It directly simulated a full set, such as simulating the take-off of the spacecraft, how to control the orbit and attitude, space docking, space maintenance and exit, etc., all of which made him, a real astronaut, think that he was opening a real spaceship.

The training effect is quite "explosive".

Well, the spaceship that everyone was riding in also exploded after entering the atmosphere.

Fortunately, the explosion was not big, but it caused the spacecraft to deviate from the landing course, and the parachute also had problems.

"Ahh

"I don't know~ Dao, I just know that I~ am going to vomit, hmm......"

"Damn, don't throw up!"

"Alarm, alarm, falling too fast!"

"There's a big forest down there, I don't know where, but what about the other capsules?"

"I'm the sea here, and I don't know where it is!"

"A white expanse, it should be snow! Trough! ”

"I'm here...... Well, the communication is interrupted! ”

………………

Manned spacecraft may land in various complex terrain and climate in the process of emergency return, such as cold regions, deserts, mountains, forests, seas, etc., so astronauts must be trained in the knowledge and skills of survival in these areas, so that they can be familiar with and master the climate change, terrain, sea conditions, animals and plants in these areas, and master the basic essentials of survival.

For example, to survive in cold areas, it is necessary to maintain the thermal balance of the body, to survive in primeval forests to defend against the invasion of fierce beasts and insects, and to survive in the desert to maintain the balance of water and salt, etc.

Because the landing site of the manned spacecraft is difficult to control, especially the large dispersion of the landing point during the emergency return, this makes it difficult for the astronauts to rescue, not to mention the accident completely out of the predetermined landing area.

Therefore, the manned spacecraft will be equipped with personal life-saving products for the astronauts to call for help and survive during the landing and waiting for rescue.

Personal life-saving items include distress contact items to facilitate astronauts to use them to get in touch with rescue personnel as soon as possible, including radio communication and positioning devices, signal guns, fireworks tubes, seawater dyes, flashing lights, reflectors, ignition items, whistles, cold protection and shading items, etc.

When the spacecraft returns to land in the cold zone or splashes into the water, the astronauts wear cold-proof suits or anti-immersion suits and wait for rescue to prevent a large loss of body heat in a short period of time and prolong the survival time.

When the astronaut returns to splash into the water, there are floating devices, such as life rafts or portable floating devices, to support the human body to float on the water, waiting for salvage and rescue.

Commonly used portable flotation devices include carbon dioxide cylinders, buoyancy capsules, blow-off tubes, and other accessories.

When the astronaut splashes into the water, the inflatable rope is pulled, the firing pin pierces the sealing film of the gas cylinder, and the carbon dioxide gas is charged to the inside of the floating sac, and the floating bag is inflated and expanded.

Of course, you can also use your mouth to inflate the pouch through the inflatable tube, which is very sour.

Life-saving food and drinking water and first-aid kits are also very important personal life-saving products, which are very important for landing in high-temperature areas to ensure that astronauts have a certain amount of drinking water.

Other personal survival items include pistols, shark repellent, fishing gear, filters, compasses, self-defense knives, wire saws, dry fuel, heaters, windproof matches, etc.

These were originally necessary training subjects, but Tang Chao didn't let them really do the training, the theme of this time was "experience" and "test", so it didn't matter what the training was, the real warriors were all directly on!

Of course, it must be carried out in the virtual world, after all, the real world is easy to die, and an astronaut is worth a thousand dollars, so you can't toss around.

Let the company's senior management experience the realism of the virtual world, and naturally they will not be hung up in the virtual world, so don't look at the whining in the sky, and in the end all the return capsules landed "safely" on the ground.

And the distance between all will not be more than a kilometer.

That is to say, the snow, forests, seas, deserts, grasslands, mountains and other environments they saw before are all within a kilometer, and this thing can only be done in the virtual world.

But even if they all landed, this thrill was unprecedented, and it was more exciting than bungee jumping.

Fortunately, they were not far away, and the survival equipment had radio communications, positioning devices, and flare guns, which quickly brought people together.

When they gathered with each other, they passed through their respective environments, and through their own experience, they also found a lot of "untrue" evidence.

The evidence points to a virtual world, not a real world, and that they are more like they've traveled into some game world.

Modeling techniques are more advanced, and the world is more realistic, but it has always been limited by hardware.

For example, when they step on grass and sand, they will feel soft under their feet, but in fact, it is not the feedback given by the ground, but the "feedback" that comes with their feet.

As far as current computer technology is concerned, every grain of sand on the beach can be made as a single scene, but the physical collision between them takes up a lot of computing resources, and a data center with 100,000 or 100,000 people can be online at the same time.

So Tang Chao took a coincidence, the sand is still that sandy land, you look at it from a distance, it is clearly grained, and you can even reach out and grab a handful of sand.

But in fact, the whole sand is one and so solid that only certain places or places where you interact with your hands and feet will have a more realistic physics.