| scientific wormhole
In the field of aerospace science and technology, China has experienced a process from scratch and from existence to strength. Under the blockade of the United States, we have a strong voice in the world space field, and even have our own space station, and countries around the world have sought cooperation.
Yang Liwei, the first person in China's aerospace industry, has also become the deputy chief designer of China's manned space project from an astronaut who carried out space missions in that year.
<h1 class="pgc-h-arrow-right" data-track="9" > reveals Yang Liwei's space trip</h1>
For the flight mission of Shenzhou 5, I believe that everyone still remembers it vividly. On October 15, 2003, Yang Liwei took this spacecraft into space, ran 14 laps in orbit, lasted 21 hours and 23 minutes, and finally returned smoothly.
This is China's first manned space mission, attracting the attention of people all over the country and even the world. On this space journey, Yang Liwei successfully completed the mission and displayed the Chinese flag in the cabin, but also encountered many frightening situations.
During the rocket's ascent, Yang Liwei felt a violent vibration, and the rocket resonated with the spacecraft at a low frequency, which would bring great pain to the human body, as if all the internal organs were broken. At that moment, he thought he was going to die.
When flying around the ground, the spaceship was in a quiet state, at this time Yang Liwei heard a mysterious tapping sound. This percussion is irregular, continuing for a while and stopping abruptly for a while.
However, Yang Liwei was not affected by this voice, but was deeply impressed. In fact, this sound is not as terrible as the netizens' brains, and is caused by the extremely tight closure and the thermal expansion and contraction of the internal air.
On the way back, Yang Liwei found a crack in the porthole on the right side of the spacecraft, as if it were about to melt. "Is the ship about to disintegrate?" He suddenly thought of the disintegration of the US space shuttle Columbia.
Fortunately, the Shenzhou V spacecraft did not disintegrate, and Yang Liwei landed smoothly. It turned out that the glass of the ship's porthole was not broken, but the anti-burn coating was burned.
When he left the cabin, there was a blood streak in the corner of Yang Liwei's mouth, which was because the corner of his mouth was scratched by the microphone during the landing process. The complete success of the Shenwu mission is an important milestone in the history of China's aerospace industry.
<h1 class="pgc-h-arrow-right" data-track="43" >Why did Yang Liwei bring a gun when he went into space? </h1>
For this mission, the astronauts have made great efforts and fully considered the safety of astronauts. Due to the limited space of the spacecraft, Yang Liwei brought all the necessary items to space, but surprisingly, there was a pistol in it.
Why do you have to carry a gun to space? And not only was this mission brought, but in the subsequent manned missions, China's astronauts were also equipped with guns, which were listed as "survival supplies".
It seems that the pistol is used to help astronauts survive, so who is its role in defending against, aliens? In fact, the reason is very cruel, related to the soviet astronauts' encounters.
On March 18, 1965, the Soviet Ascendant 2 manned spacecraft was launched with two astronauts, one beveryaev and the other was Leonov, who completed his first spacewalk on this mission.
On the way back, their spacecraft encountered a malfunction, and the reverse thrust rocket could only be artificially ignited. Due to an accident, the ship deviated from the planned course and landed in the birch woods of the Ural Mountains.
This birch forest is deep and deserted, and there are occasional howls of wolves and bears. At that time, the search and rescue system was not as perfect as it is today, that is, the two astronauts had just finished scientific research in space, and after landing, they had to survive in the wilderness.
Fortunately, they had pistols leaning over — starting with Gagarin, Soviet cosmonauts were equipped with Makarov pistols. After two astronauts struggled to survive for 2 days, they finally waited for rescue.
The encounter took the world by surprise, first of all the Soviet Union, which specially developed the TP-82, known as the "Space Pistol". Not only can it fend off wild beasts, but it can also fire distress signals, and the detachable butt can quickly transform into a machete or shovel.
Soviet and Russian astronauts carried the TP-82 on space missions since 1982, and they didn't stop using the pistol until 2007, when the specially made munitions expired.
However, only Russian astronauts can hold TP-82s on the International Space Station, and astronauts from other countries can only carry additional survival tools.
The pistol used by China's astronauts was selected from the existing military and police equipment, and what Yang Liwei brought to space that year was a "Type 64" pistol.
This pistol is small in size and not very powerful in actual combat, but it is still enough to be used as a space life-saving device, after all, astronauts want to use it to survive in abnormal situations, rather than to fight with aliens.
<h1 class="pgc-h-arrow-right" data-track="44" > astronaut's survival drill</h1>
Usually, astronauts will land at the expected landing site after returning home, but sometimes they encounter unexpected circumstances and may also land elsewhere, it may be a cold snowy mountain, it may be a barren desert, or it may be a vast sea...
Therefore, astronauts must learn to survive in a harsh environment to wait for the rescue team to arrive. In the desert, they must overcome the tests of wind and sand, high temperature, cooling, etc., master the survival ability in the desert environment, and be familiar with the use of life-saving supplies.
The training of jungle survival requires astronauts to learn to build sheds and find food; the training of survival at sea requires them to learn to inflate lifeboats and use tools to convert seawater into fresh water...
In addition to survival drills, astronauts have to go through other difficult tests. For example, in order to adapt to the environment of weightlessness and turbulence during flight, they must repeatedly train against "space movement disease".
The way to overcome this physiological response is to exercise vestibular function, China uses swivel chair training, the standard is to continue to rotate on the high-speed swivel chair for 15 minutes.
Sitting on the swivel chair and spinning, it sounds simple, but in fact, it is very difficult, and ordinary people can't stand it for 1 minute. Liu Yang, who trained in the swivel chair for the first time, began to sweat and feel dizzy and nauseous in 5 minutes, but she survived this difficulty with her tenacious will.
China's astronauts have to receive eight types of training, as many as a hundred subjects, involving medicine, physiology, psychology and other aspects, and when performing tasks, they also have to face various dangers unknown to the universe.
Therefore, don't look at the astronauts who are all watched and bright, but behind them are countless days and nights of hard work and efforts, worthy of our respect.
————————————
The pictures in this article originated from the Internet, if there is any infringement, please contact to delete