Sievert (Sv): A measure of the effective dose—that is, the health effects of the radiation, with different types of ionizing radiation (gamma rays, X-rays, alpha particles, and so on) having different effects. One sievert equals 1 joule per kilogram weighted for the biological effectiveness of the radiation and the tissues exposed.
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Scientists warn that as humans move more activities off-Earth, more debris will fall to Earth, polluting as it plummets.
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Популярная российская блогерша пожаловалась на тяжелый развод и расплакалась20:49
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