There are many myths associated with the residence of a person in open space without a skateland. Some say that instant freezing is waiting for the unfortunate freezing, others argue that space radiation is immediately incorporated, and the third tells that the blood inside the body will boil and the person will die in a second. Is it really and how long can you live in space without a skatera?
Unfortunate will immediately turn into a larger
You can confidently answer that it is not destined to turn into ice block instantly. Cosmos, of course, very cold, that's just his density extremely small. Therefore, the human body will not be able to convey its heat - because the void circle. By the way, one of the main problems on the ISS is not the protection of the crew from the cold, but, on the contrary, the removal from the heat station.
Human Sailing Space Radiation
Space radiation is definitely dangerous. Charged particles pierce cosmonaut, causing radiation disease. But to get a deadly dose, you need to spend a long time in space, for which you have time to die under the influence of other factors. Ordinary clothes covering the body can protect the body from most burns. But if you find yourself in space completely naked, the consequences of even non-durable stay can be bad.
Blood boils due to low pressure
But suddenly a person will boil and tear blood vessels? Indeed, in space, very low pressure, which helps to reduce the booster temperature of the fluid. But after all, the blood inside the body will continue to be under its own pressure and to boil, it will need to reach a temperature of 46 ° C, which, as you know, are not observed in living people. But if you are visiting the language, you will feel how your saliva boils. But in this case there will be no burn, because it will boil at low temperatures.
Cosmonaut explodes due to pressure drop
Pressure in space is dangerous to others: due to its differential, the internal organs of a person may increase, and the body swell to two times. But colorfully breaking and splashing.
Still nothing to breathe
B O Ever danger Pressure is for our respiratory system. As far as we remember, there is no oxygen in space, so the lifetime of a person without a skatender depends on how much he may not breathe. But it will not be similar to the way if we were under water, where it is enough to delay your breath and try to scatter. If you delay your breath in vacuo, the difference in pressure will simply break your lungs, and then the person will be able to save already. The only way to prolong my life is to allow gases to quickly get out of your body (while there are such troubles like emptying of the intestine or stomach). When oxygen rapidly leaves your body, you will have about 14 seconds while blood saturated with oxygen will continue to feed your brain, and then you lose consciousness. But does this inevitable death mean? Not! Our fragile, at first glance, the body is able to survive even in such an alien and hostile atmosphere. Scientists believe that if a person, after one and a half-minute stay in the outer space, deliver to a safe place, it will not only survive, but also completely restore its functions in a few days.
Animal experiments have shown that chimpanzees even after a three-minute stay in conditions close to vacuum, after a few hours come back to normal. At the same time, they have observed the symptoms described above: the expansion of the body and the loss of consciousness due to the lack of oxygen. Experiments with dogs showed that our four-legged friends suffer a vacuum much worse than chimpanzees: the survival limit is no more than two minutes.
To fully trust experiments with chimpanzees and dogs should not: the human and animal body can react differently to the environment. And, although no one will put such experiments on people, we can judge the impact of vacuum on the human body on accidents that occurred with astronauts. In 1965, Jim Leblack was tested in a vacuum chamber with a tightness of the new Skafandra, which was intended for lunar expeditions. During one of the tests, when the pressure in the chamber was approximate to the space, there was a depressurization of the player, and after 14 seconds, a person lost consciousness. The standard pressure recovery procedure to normal occupied 30 minutes, while the team of scientists risked accelerate the process and restored the pressure in just a minute and a half! Consciousness returned to Leblane when the pressure in the barocamera corresponded to the earth at an altitude of 4, 5 km above sea level. Another incident is the flight of the Soyuz-11 ship. During the descent of the apparatus to Earth, the spacecraft is deployed. Little not in time the opened ventilation valve in size and a half centimeter caused the death of three astronauts. According to the recording equipment, all three lost consciousness after 22 seconds after depressurization, and the vital activity ceased to be fixed after 2 minutes. In total, the crew spent around 11, 5 minutes in the ambulaum space. When the device landed, and the meeting team opened the hatch, it was already late to reanimate astronauts.