Encountering a fire in space is definitely one of the last things any astronaut wants to encounter.
After the Apollo 1 accident, NASA also redesigned and optimized the interior of the spacecraft. It replaced the flammable materials in the cabin with materials that will automatically extinguish the flames, wrapped insulating materials on the piping system and wires, corrected wiring problems, and changed The atmospheric pressure in the cabin was reduced, the gas in the cabin was changed from pure oxygen to a mixture of oxygen and nitrogen, the nylon spacesuits were changed to coated spacesuits with fiberglass, and the astronauts' training in fire handling was also strengthened.
The flames in the spacecraft are very different from the flames on the earth. Without gravity, the hot air generated by the flame burning in the free fall state will not rise, but will wrap the flame and form a layer of low oxygen around it. High temperature layer.
Because of the lack of oxygen, the flame spreads very slowly, becomes a ball of light, and burns at a lower temperature than the earth.
Generally speaking, after a fire occurs, an alarm will sound in the spacecraft first. Then the astronauts need to put on breathing masks, determine the fire point as quickly as possible, and cut off the nearby power supply. At the same time, others will use fire extinguishers to put out the fire. If the fire If it cannot be controlled, the astronauts need to leave the cabin where the fire broke out, retreat to other cabins, seal the gates, and turn off the air circulation fan of the fire module.
Later, on Apollo 13, the service module exploded the day after launch. However, the seven astronauts on board the spacecraft at that time remained calm and responded well to the crisis. All crew members were safely transferred to the lunar module and on the ground. The control center cooperated, abandoned the moon landing plan, drove the spacecraft to the back of the moon, and successfully returned to Earth using the slingshot effect, creating the greatest miracle in the history of human spaceflight.
Of course, these are all things for later.
NASA's fire response training is conducted in a closed environment of a simulated aircraft. Of course, real fires are not used, but red warning lights are used instead. Participants in the training are required to follow the steps to practice the firefighting process, so in theory there is no any danger.
According to the order of roll call, this time it was the middle-aged man's turn to take the lead. He glanced at the high school students beside him, and the two walked into the simulation cabin.
The simulation cabin had two parts, corresponding to the service module and the lunar module. The two went straight to the innermost service module, which was also where the first part of the training began.
But when the alarm sounded later, they did not remove the respirator mask as required in the manual. The high school students quickly took off their shirts, revealing a row of drainage bags tied to their bodies.
The water bags now contained not clean water, but light yellow gasoline, which he had stolen from the warehouse.
As he opened the gasoline and poured it on the cotton bag used to simulate flammable substances, he said, "Now you can tell us how to cover up the smell of this thing, lock the hatch, and then complete the remote ignition." .”
The middle-aged man didn't answer until the high school student poured out all the gasoline. He quietly retreated to the cabin door, took out a match, struck it, and then said again, "I told you that my boss I once encountered two players who were relatively small in the real world in a single-player competitive copy. In order to compete for the last spot, one of them had to kill the other. This was a very difficult choice, very difficult... The middle-aged man paused, "What I didn't tell you is that I was the one who did it."
"What?" An ominous premonition arose in the high school student's heart. He turned around and saw that the middle-aged man was already standing at the connection between the service module and the lunar module.
At the same time, the latter also threw the match in his hand, and the match accurately landed on a cotton bag that had been doused with gasoline. The fire quickly ignited. The high school student did not think much and ran outside as hard as he could. However, The young man has already closed the door of the service cabin.
The simulated fire alarm in the service cabin was still ringing wildly, but it sounded ironic against the increasing fire intensity around it.
The high school student used all his strength to open the hatch door bit by bit, but just when he was about to see hope, someone poured cold water on his head. He saw the middle-aged man on the other side through the gap. He took out the lighter again and pointed it at the lower part of the hatch.
Like the previous door lock, the heated part melted quickly, but this time the middle-aged man quickly took back the lighter. The melted part came into contact with the ground. After cooling down, it was quickly fixed and connected to the surrounding area.
The middle-aged man took back his hand, but this time the high school student could no longer open the hatch.
"Sorry, I didn't tell the truth before. There is no way for me to cover up the smell of gasoline and complete remote ignition. I don't have such props on me."
"Are you crazy?! What good will it do to you to kill me? Do you plan to fight those two people alone?" The high school student was sweating profusely. With the gasoline in the water bag, the flames burned quickly, and the tongues of fire could already After licking his back, the look on his face became more and more frightened, and he even began to beg the middle-aged man to open the door.
However, the latter was unmoved, "Who said I would fight two people in the future?" The middle-aged man raised his eyebrows, "I do have an ally, but unfortunately, that person is not you. By the way, Mention, you can shout for help, but the two sections of the simulation cabin are very closed, and people outside can’t hear what’s going on inside.”
"How are you going to explain to the people at NASA if you kill me?! Do you still want to continue landing on the moon? Or are you just doing this to help others? You are not that kind of person." The high school student was choked by the thick smoke and burst into tears. flowed out.
The middle-aged man took a few steps back, away from the spreading flames, "You brought the gasoline into the simulation cabin. From the time I got up in the morning until now until the fire disposal training, I have never left the sight of other people. You are the only one here." You disappeared for such a long time after lunch, so everyone will only think that you started the fire. As for the reason, I don’t know... Maybe the recent training was too intensive and made you too mentally stressed, or maybe the candidates are coming one after another. The accident caused your stress to exceed the limit. I just went to the lunar module as required to conduct the second part of the evacuation training. By the time I found out, it was already too late, and you also closed the middle hatch."
"Do you think people at NASA won't doubt you?"
"I don't care. As long as there is no absolute evidence, they still need us to land on the moon for them." The middle-aged man covered his mouth and nose with one hand to prevent inhaling the poisonous smoke. At the same time, he glanced at the watch on his wrist and calculated the number of days the high school student would have to go to the moon. How much time is left, when there is no sound inside, the smoke in the lunar module is getting bigger and bigger, and no one can be accommodated anymore, the middle-aged man runs to the door, opens the hatch, puts on a panicked expression, and shouts , "No, fire!"
