The sievert (symbol: Sv) is the SI derived unit of dose equivalent. It attempts to reflect the biological effects of radiation as opposed to the physical aspects, which are characterized by the absorbed dose, measured in grays. It is named after Rolf Sievert, a Swedish medical physicist famous for work on radiation dosage measurement and research into the biological effects of radiation.Once the human body is exposed to a level of 20Sv…Acute radiation poisoning, 100% fatality after 7 days (LD 100/7). A dose this high leads to spontaneous symptoms after 5 to 30 minutes. After powerful fatigue and immediate nausea caused by direct activation of chemical receptors in the brain by the irradiation, there is a period of several days of comparable well-being, called the “walking ghost” phase. After that, cell death in the gastric and intestinal tissue, causing massive diarrhea , intestinal bleeding and loss of water, leads to water-electrolyte imbalance. Death sets in with delirium and coma due to breakdown of circulation. Death is inevitable; the only treatment that can be offered is pain therapy.

20.SV, the sonic extermination device of Osman Arabi (Xardas) was activated in the year 2000 with the sole purpose of simulating the demise of the human race through sound. A project that restricts Itself to no boundaries, definition, sound, ideologies or rules as It breathes in Its very own viral hive independently defying all sound and music standards.