Erabaru.net. As we all know, outer space is not only low in temperature, but also full of various cosmic rays. To cope with such a harsh environment, we must all create spacesuits that are heat and cold resistant to withstand the ravages of low temperatures and cosmic rays. The space suit that Yang Liwei wore when he went into space cost as much as 30 million.
In the early 1960s, scientists from various countries used animals as experimental objects to observe the environmental impact of outer space on living things through environmental analogies.
They discovered that if you were unprotected in space, people would explode immediately because their skin was confined and so would the circulatory system. His blood also boils, he loses consciousness from a prolonged lack of oxygen until death, and his skin will be badly burned from the sun and intense cosmic rays.
In addition, although the temperature in outer space is as low as minus 273°, due to the peculiarities of the vacuum environment, people do not feel too cold or hot, but only feel a little cold due to the evaporation of water in the body.
There are also reports that some animals die of myocardial fibrillation within one minute of exposure to unprotected near-vacuum conditions.
In 1960, an accident occurred at NASA: the aerospace trainer was locked in a vacuum simulator. According to his description, he fell into a coma after being conscious for 14 seconds. Before losing consciousness, his memory was that his right hand was very sore, and had lost its function. The moisture on his tongue also started to boil.
In general, it is very dangerous for astronauts to be exposed directly to the outer space environment without wearing a space suit due to threats such as hypoxia, decompression, and radiation.(lidya/yn)
Source: hker.life
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