10 main dangers in outer space
If you ever have the opportunity to be face to face with the universe, to go into space and enjoy the panoramic view of infinity, take precautions - in space hides a lot of threats, and here are some of the problems that can happen.
1. The absence of air
On the space station there is always a danger of damage to the shell by an object (eg an asteroid), in this case, the pressure difference "suck" crew into space.
Inside, the atmosphere is always maintained and preserved condition for the "residents" of the orbit close to the earth, but if there was a leak, air will rush into it, simultaneously capturing equipment and the astronauts themselves. In this situation, the chances of surviving is not enough: even if to escape death from the debris generated during the accident, it remains not very attractive prospect for some time drifting in a vacuum until stocks run out of oxygen.
2. Severe swelling
This unpleasant phenomenon may be due to the fact that the water is about 70% of the human body, without the influence of atmospheric pressure tends to turn into a vapor - as a result of the body like "swells", sometimes increasing in volume almost doubled.
Water vapor can not escape to the outside, damaging the skin, but will certainly take "swollen" person serious problems.
Many familiar sensation of sunburn, "burn" on the beach - a common occurrence. But now imagine what would happen if this beach is located a little closer to the luminary: people being in the open space, without the ozone layer and atmosphere are "filtered" harmful ultraviolet radiation, undergoes a monstrous risk. The consequences for the body can be very sad: the skin is exposed to strong sunlight exposure, which will make it instantly "char" and threw the naked eye on our star can remain blind - the retina will be burned. And even the survivors dramatically increase the risk of skin cancer.
In a vacuum, a person dies of suffocation, but not because there is no air: in the absence of earth-pressure oxygen in the blood is destroyed, and the cardiovascular system begins to work "idle" - the vital organs and muscles suffer from a lack of oxygen at this new portion of air no longer be absorbed by cells. The phenomenon is known as hypoxia: stemming from her choking gives the skin a bluish tint, and a man's life ends in ten seconds.
5. The sharp decline in body temperature
It is known that the sweating helps regulate body temperature mode, because the evaporation of the liquid is absorbed by the thermal energy, and the body thus cools itself. In air saturated with moisture evaporation is less intense, and the moisture in the open space is not at all, so the process grows: as a result of eye, mouth and respiratory tract rapidly give large amounts of energy, and as a result, overcooling occurs.
Decompression sickness 6.
The cleavage of the oxygen in the blood - not only consequence stay in vacuo: the atmospheric pressure without gas molecules in the body (e.g., nitrogen compound) begin to "bubble" clogging blood vessels and disrupting the cell walls. Thus there is an unbearable pain in the joints, but the main thing - blood clots in the circulatory system can lead to a heart attack, seizures or cardiac arrest.
7. Lowering blood pressure
With all the dangers of being in the open space, there is also this: the inevitable (as it follows from the foregoing points) deformation of the body creates a huge additional strain on the muscles of the heart, which will try to get rid of the blood of the enlarged blood vessels, maintaining stable blood pressure, but sooner or later the pressure will come to naught, and subsequent death. To understand the concept, imagine how difficult it would be to drink a cocktail through a straw, if its diameter will increase many times.
8. The sudden depressurization of
If the hole in the hull of the spacecraft led to the depressurization, and every living thing like a giant vacuum pulls out into a vacuum, do not rush to gain full lungs of air, to live for a few precious seconds longer. The result will be strictly the opposite: the difference between external and internal pressures tear the lungs like a balloon - when you suddenly happen to fly through the hole in the shell space ship, try to face it properly breathe.
9. Boiling Blood
Why is water in the mountains boils at a temperature below 100 ° C? The fact that the lower the ambient pressure, the easier it is to make the molecules move, and less heat is required to make a thick liquid into vapor. "Walk" in a vacuum force you to "boil", as here operates exactly the same principle: the pressure in the vacuum is almost zero, and body temperature will be enough to blood vessels literally boil.
10. The cell mutation
While in space, remember that with all the obvious risks, like an explosion of light, or hypoxia, there is a danger, not so pronounced, but no less real: the body will be at every moment "stitch" the subatomic particles. Invisible eye charged protons, as well as X-rays and gamma-rays act at the cellular level and cause deviations in the DNA structure. As a result, unlikely to succeed to find a super-ability - more likely delayed for years death from radiation or cancer.