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A fallout shelter is a shelter designed specifically for a nuclear war, with thick walls made from materials intended to block the radiation from fallout resulting from a nuclear explosion. Many such shelters [1] were constructed as civil defense measures during the Cold War. A blast shelter protects against
Fallout Shelter became the most popular free iOS application in the U.S. and UK within a day of its release, [56] and the most popular iOS game on June 26, 2015. [57] By June 12, 2016, Fallout Shelter had over 50 million players. [58] Studio director Todd Howard estimated they had 75 million players by February 2017.
Hence, shielding strength or "thickness" is conventionally measured in units of g/cm 2. The radiation that manages to get through falls exponentially with the thickness of the shield. In x-ray facilities, walls surrounding the room with the x-ray generator may contain lead shielding such as lead sheets, or the plaster may contain barium sulfate.
It differs from a fallout shelter, in that its main purpose is to protect from shock waves and overpressure instead of from radioactive precipitation, as a fallout shelter does. It is also possible for a shelter to protect from both blasts and fallout. Blast shelters are a vital form of protection from nuclear attacks and are employed in civil ...
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By Leah Douglas and Julie Steenhuysen (Reuters) -California's public health department reported a possible case of bird flu in a child with mild respiratory symptoms on Tuesday, but said there was ...
To shelter-in-place in such an area would offer, in a number of outdoor dose rates, an adequate fallout radiation protection factor (PF) or "dose reduction factor" of 20 or more. [44] More effective basement spaces did/do exist however, of "10 million" homes assessed in 1968, 500,000 US basements were found to have a PF-40.