48 Hours a Day

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Encountering a fire in space is definitely one of the last things any astronaut wants to encounter.

After the accident of Apollo 1, NASA also redesigned and optimized the interior of the spacecraft, replaced the flammable materials in the cabin with some materials that would automatically extinguish, wrapped insulation materials on the piping system and wires, corrected the line problems, and changed In order to reduce the atmospheric pressure in the cabin, the inner Qi body of the cabin was changed from pure oxygen to oxygen-nitrogen mixture, and the nylon space suit was changed to a coated space suit with glass fiber. At the same time, the training of astronauts in fire disposal was strengthened.

The flame in the spacecraft is very different from the flame in Earth. It loses gravity. The hot air generated by the flame burning in the state of free fall does not rise, but wraps the flame and forms a layer of low oxygen around it. High temperature layer.

Because of the lack of oxygen, the flame spreads very slowly, and it will become a light sphere. The burning temperature is also lower than Earth.

Generally speaking, an alarm will sound in the spacecraft after the fire. Astronauts then need to put on a breathing mask, determine the fire point at the fastest speed, and cut off the nearby power supply. At the same time, others will use a fire extinguisher to extinguish the fire. Control requires that the astronauts leave the fire compartment, retreat to other compartments, block the gate, and turn off the air circulation fan of the fire module.

Later, Apollo XIII exploded on the 3nd day service cabin after launch, but the 2 astronauts on the spaceship were in a critical condition and responded well. All the crew were safely transferred to the lunar module and ground control. The center cooperated, abandoned the moon landing plan, opened the spaceship 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 all are later.

NASA’s fire disposal training is conducted in a closed environment of a simulated aircraft. Of course, True Fire will not be used. Instead, it is replaced by red warning lights. The people involved in the training are required to follow the steps to rescue the fire wave process, so the theory There is no danger on it.

According to the order of roll call, it’s time for middle age person to take the lead in this time. He glanced at the high school students on the side, and 2 people entered the simulation cabin.

The simulation warehouse has 2 parts, which correspond to the service cabin and the lunar landing cabin. The two people walk straight to the innermost service cabin, which is where the first part of the training begins.

But then when the alarm sounded, they not at all took off the breathing mask on the side according to the requirements in the manual, and the high school students quickly took off their tops, revealing a drainage bag tied to their bodies.

The water bags now contain not clear water, but pale-yellow gasoline, which he stole from the warehouse.

He opened the gasoline and poured them on the cotton bag used to simulate combustibles. He said, “You can now tell us how to cover up the smell of this thing, lock the door, and then complete the remote ignition. . “

The middle age person did n’t answer. Until the high school student finished the petrol, he quietly retreated to the door, and at the same time took out a match and wiped it, which opened the mouth and said again, “I told you My last copy of the single-player competition had encountered two players who were small in the real world. In order to compete for the last place, one of them had to kill the other. This is a very difficult choice. Very Difficult … “middle age person paused,” What I did n’t tell you is that I ’m the one to do it. “

“What?” An ominous hunch arose in the heart of the high school student. He turned around and saw that the middle age person had stood at the junction of the service module and the lunar module.

At the same time, the latter also threw a match in his hand. The match accurately fell on a bag of cotton bags drenched in gasoline. The fire quickly ignited. The high school student didn’t care much, and ran out of his legs desperately, but middle The age person has closed the door of the service cabin.

The alarm that simulates fire in the service cabin is still ringing, but it sounds ironic against the increasing fire around all around.

The high school student used all one’s strength to pull the hatch a little bit, but just when he was about to see hope, he was poured into a pot of cold water. He saw the middle age person from the gap. He took out the lighter and aimed at the lower part of the door.

Like the previous door lock, the heated part melted quickly, but this time middle age person quickly withdrew the lighter. The melted part was in contact with the ground, and after cooling down, it was quickly fixed and connected to the surroundings.

Middle age person withdrew his hand, but this time the high school student could no longer pull the door open.

“Sorry, I didn’t tell the truth before. I have no way to cover up the smell of gasoline and then complete remote ignition. I don’t have such props on my body.”

“Are you crazy ?! What good is it for you to kill me? Are you going to fight against those 2 people alone?” The high school student was sweating heavily, there was gasoline in the water bag, the flame was burning fast, and the tongue could be Licking his back, the expression on his face became more and more frightened, and even began to beg the middle age person to open the door.

However, the latter was unimpressed. “Who said I will fight 2 people?” Middle age person raised his eyebrows. “I do have an ally. It’s just a pity that the person is not you. By the way You can call for help aloud, but the closure of the two simulated warehouses is very good, and people outside cannot hear the movement inside. “

“Kill me, how do you explain to the people of NASA ?! Do you want to continue to go to the moon? Or is you just doing it for the sake of others? You are not that kind of person.” High school students were choked with smoke and tears together Flowed out.

The middle age person took a few steps back, away from the spreading flames, “Petrol was brought into the simulation cabin. I haven’t left other people’s vision since I got up in the morning until now and before the fire disposal training. Only you are in It disappeared for a long time after lunch, so everyone would only think that this fire was you. As for the reason, I do n’t know … Maybe the recent training is too intensive to make you mentally overstrained, and there may be candidates in succession. The accident caused your pressure to exceed the tolerance limit. I just went to the lunar module as required to conduct the Second Section evacuation training. It was too late when I found out, and you also closed the middle door. “

“Do you think people at NASA will not doubt you?”

“I don’t care, as long as there is no absolute evidence, they still need us to go to the moon for them.” Middle age person covered his mouth and nose with one hand to prevent the inhalation of poisonous smoke, while looking at the Wrist Watch on his wrist, calculating high school How much time is left until the sound is gone, the smoke in the lunar module is getting bigger and bigger, and no longer can stay, the middle age person ran to the door, pushed the door open, and put on a panic expression, big Shouted, “Not good, fire!”