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1180Re: Pop-Pop Steamboats membership

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  • Richard Mundy
    Jan 5, 2009
      I could also add how many promising inventions never got out of the
      garden shed
      (sorry to go on)

      --- In pop-pop-steamboats@yahoogroups.com, "Richard Mundy"
      <coracles18@...> wrote:
      > 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
      > they actually assembled these to create the bridge. Similarly how
      > the pyramids or stonehenge built?
      > Dick
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