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In space, there is lack of gravity, even if it is present , it's less than the gravity of the Earth, which makes the muscles of a 20 or 30 years old , to become like muscles of 60 or 80 years old......but it can be corrected and for that reason only astronauts are kept under special observation where gravity, temperature and pressure are regulated till they become eligible to face the natural gravity, temperature and pressure of the earth.

Speed of rocket , also play a major role, you see it takes less than half an hour to reach from the tip of the atmosphere to the surface of the earth, aircraft almost starts to burn due to friction with the atmosphere but aircraft sustains due to its hightech technology

Now you imagine that how much pressure should it be putting on human body

But human body, AN ENGINEER'S DREAM , ALWAYS SUSTAINS.

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14y ago

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