"Although the simulated gravity of 0.3G is much smaller than that of the earth, it is precious in space, and we will show you a set of less accurate comparative experiments to let you understand the importance of space gravity~"

Yesterday, after the docking of the Tiangong space station and the new star inn, the astronauts on both sides met and said hello to all the viewers and ended the live broadcast.

Of course, the audience is not satisfied, not only are they dissatisfied, but those who only know the news later are also dissatisfied, others have watched the live broadcast, they haven't even watched the live broadcast, they can only find a recording on the Internet to watch.

After reading it, I was shocked.

The plot of the science fiction movie turned out to be a reality!

There was no news at all.

The people who watched the live broadcast yesterday still had barrage guesses, and some guessed them, which is equivalent to a reminder of "high energy ahead", but those who watched the recording and broadcast faced the "sci-fi future".

When many people were discussing on the Internet, they took the lead and the official of the Tianxia Space Agency by the way, and asked the official to come up with more related videos, and their friends love to watch them.

No, the day after docking, the space agency and the navigator jointly released a video.

The five astronauts in the video belong to two different space stations, each of them going to one or two people on the other station, and then experiencing different environments.

Two astronauts came to Tiangong, and one of the remaining navigator astronauts experienced in the simulated gravity cabin, they experienced running, exercise, eating, working, resting, going to the toilet and other projects under 0.3G gravity, there are four simulated gravity cabins, each cabin has different functions, rest, exercise, and work do not affect each other.

The trainee astronaut of the navigator has not been up for a long time, and he does not feel deeply about it, but the Tiangong astronaut, who has been in space for several months, is really moved to tears.

Speaking of crying, in the Tiangong space station in a completely weightless environment before, they would try their best to stop themselves from crying, because when you cry, tears don't flow down, it will only gather around your eyes, and it will gather more and more, and finally become a water ball.

If you don't use an absorbent cotton wool to absorb your tears in time, your eyes may be damaged.

It's okay to cry now, it's a cry of happiness, because it's just so nice to re-experience gravity in space.

When running on a treadmill, you don't need a rope, as long as the movement is standardized, you can run like the earth, just a little floating.

You can lie down when you sleep, you can feel the softness of the mattress, you can cover a thin life, and you don't have to find a sleeping bag to tie yourself up.

The toilet of the simulated gravity cabin is really good, although it still has certain space attributes, but compared with the washing in the weightless state, the toilet of the simulated gravity cabin is "heaven".

When eating, you can sit firmly and don't have to worry about floating while eating, and you don't have to worry about food scraps flying around, or even flying to your throat? Makes you cough non-stop.

How nice does it feel to drink soup with a bowl? There was a feeling of coming home.

It is said that the pilot is tackling the technology of oil smoke gas separation and reuse? If this technology comes out, then they can cook and eat in the simulated gravity module of the space station.

Of course, it can also be done now? But when there is no fume separation technology? All the fumes and exhaust gases generated by cooking have to be replaced, which is too wasteful.

There are so many things that gravity of 0.3G can do, it is almost twice the gravity of the moon, and they were still envious of their counterparts in the lunar base who can sit and eat peacefully? I didn't expect them to be able to do it now.

And better.

These explicit benefits are not the most important, but the implicit benefits are the core driving force for the development of the simulated gravity chamber.

As everyone knows? Space travel is a great way to explore the unknown, experience adventure and excitement, and satisfy humanity's thirst for novelty.

But this is limited to short space travel.

Proof in practice? Spaceflight in weightlessness and vacuum for long periods of time can cause serious harm to astronauts, such as muscle atrophy or cancer.

At present, the maximum time that astronauts can stay in space is more than 400 days, and the time spent in space will be longer and longer in future space exploration, so it is important to understand how the space environment of weightlessness, high vacuum, large temperature fluctuations and high energy radiation affects human health, and to overcome them one by one.

Weightlessness causes changes in cardiovascular function, which, as mentioned earlier, can lead to a large face and a thick neck.

This is when astronauts' blood and other bodily fluids do not flow down to the lower body as habitually during space flight as they do under gravity. On the contrary, blood from the lower body will flow back to the chest cavity and head, which can cause problems such as facial swelling, head swelling, neck varicose veins, headaches, nasopharyngeal blockage, and a shift in the center of body mass.

In the first few days, astronauts also suffer from motion sickness, also known as space motion sickness, which is similar to any other form of travel sickness, in which the vestibular balance receptors of the inner ear are stimulated by excessive movement when riding in transportation.

At this time, the vestibular organs will produce an excess of bioelectricity, which will then affect the nerve center, and finally appear cold sweat, nausea, vomiting, dizziness and other symptom clusters, accompanied by symptoms such as stomach discomfort and vomiting.

If you vomit directly in the helmet on the space station, then the scene is called exciting.

On Earth, drugs can be taken to alleviate symptoms of motion sickness, but on the space station, astronauts who cause more severe space motion sickness cannot use drugs, because the space environment can cause a variety of conditions, and even if they are used, they must be specially developed for space situations.

After three months in space, some astronauts experience muscle atrophy and even lose up to 30% of their muscle mass, and it takes months for these to return to normal after returning to Earth.

In addition, spaceflight can also increase the risk of bacterial or viral infections and even reactivate certain latent viruses in astronauts' bodies.

By the time astronauts return to Earth, their immune systems have changed so much and their months-long life in space has caused them to lose 8%-12% of their bone density, which can take up to three years to recover.

In addition, other health factors of space travel include psychological stress, disruption of circadian clocks, extreme temperatures, and ambient noise, which may lead to hearing loss, difficulty concentrating, disrupted sleep, and susceptibility to fatigue.

Most of these problems are caused by weightlessness and can be mitigated to some extent if the astronauts are given a sense of gravity again.

However, there are two sides to everything, and there are naturally both disadvantages and advantages in zero gravity.

For example, some conditions that are not good for normal people, in turn, can actually reduce back pain in some patients and improve blood circulation.

Therefore, the combination of Tiangong and Starry Sky Inn is reflected in the mode of both weightless environment and simulated gravity environment.

Yes, in addition to weightlessness, there is also equally dangerous high-energy radiation.

When astronauts leave the ground, they leave the thickest atmosphere and magnetic field protection, and the atmospheric molecules in space orbit are already very thin.

Without the protection of the atmosphere and a part of the magnetic field, high-energy radiation will have a dangerous effect on the human body, after all, the thin protective layer of the space station is certainly not as thick as the atmosphere of 100 kilometers.

The high-energy radiation in Earth's orbit comes from cosmic rays and solar flares in the Milky Way, and long-term exposure to high-energy radiation kills cells and destroys DNA, which can lead to an increased risk of cancer and cataracts.

In fact, the Navigator is almost a new technology every day, and the bulkhead protective layer of the simulated gravity orbital module is the new material of the Navigator, and the protective capacity of the new material is several times that of the protective materials of Tiangong and the International Space Station.

In addition, all kinds of new drugs in the life science research department of Navigator, especially drugs for space radiation damage and enhancing human physique, are also at the world's most advanced level.

Several technologies work together to ensure that astronauts have a relatively good survivability in space.

But that's too far away, and the performance of simulated gravity has already made many people ecstatic.