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1179Re: Pop-Pop Steamboats membership

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  • Richard Mundy
    Jan 5, 2009
      I can add to this, how much technology etc has been forgotten because
      it is no longer relevant.
      An example is the Ironbridge, Shropshire, England.
      It is known how the sections were cast, but it is speculation as to how
      they actually assembled these to create the bridge. Similarly how were
      the pyramids or stonehenge built?
      Dick
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