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  2. Bomb shelter - Wikipedia

    en.wikipedia.org/wiki/Bomb_shelter

    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

  3. Clarence P. Hornung - Wikipedia

    en.wikipedia.org/wiki/Clarence_P._Hornung

    US Civil Defense fallout shelter symbol, a symbol documented by and possibly drawn from Hornung's Handbook. Clarence Pearson Hornung (June 12, 1899 – January 2, 1997) was an American trademark and industrial graphic designer and illustrator.

  4. Blast shelter - Wikipedia

    en.wikipedia.org/wiki/Blast_shelter

    When a house is purpose-built with a blast shelter, the normal location is a reinforced below-grade bathroom with large cabinets. [citation needed] In apartment houses, the shelter may double as storage space, as long as it can be swiftly emptied for its primary use. A shelter can easily be added in a new basement construction by taking an ...

  5. Diefenbunker - Wikipedia

    en.wikipedia.org/wiki/Diefenbunker

    Irreverently known as the "Diefenbunker," this structure is a powerful symbol of Canada's response to the Cold War. Designed in the 1950s to withstand all but a direct hit by a nuclear weapon, it was intended to shelter key political and military personnel during a nuclear attack.

  6. Duck and cover - Wikipedia

    en.wikipedia.org/wiki/Duck_and_cover

    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.

  7. Placard - Wikipedia

    en.wikipedia.org/wiki/Placard

    A fallout shelter sign. As part of the civil defense preparations in the event of a nuclear attack, in 1961 United States began establishing fallout shelters in communities across the country. The shelters were symbolized by orange-yellow and black trefoil symbol, designed by Robert W. Blakeley. [4]

  8. What Does That Symbol on 'Yellowjackets' Mean?

    www.aol.com/lifestyle/does-symbol-yellowjackets...

    What does the symbol mean? This is where it gets juicy. So far, the show hasn’t offered any explanation, but has only presented the symbol with sinister connotations. That hasn’t stopped the ...

  9. Robert Blakeley - Wikipedia

    en.wikipedia.org/wiki/Robert_Blakeley

    Robert Wilson Blakeley (August 30, 1922 – October 25, 2017) was an American graphic designer, known for making the fallout shelter sign. While working for the Army Corps of Engineers, Blakeley designed the sign as a civil defense measure during the Cold War.