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    Re: Mirage at Isles of Shoals
    From: Jim Rives
    Date: 2022 Apr 13, 09:50 -0700

    Dale, a very interesting site.   I will take a look at it in more depth later. 

    Back on 20 July 2020 you posted about some interesting work you were doing about longitude.  You recommended "Longitude by Wire".  You know, that title probably isn't flying off the shelves at BN!  But what a fascinating story.  I had never thought about how the fundamental framework suporting mapping of this, or any, for that matter, continent had been done. The amount of work that was involved in surveying this (and the Indian) continent in the 1800's is daunting, to say the least.   Imaging if radio and telegraphy had never been developed.  Would the western hemisphere float aimlessly around? Or probably link up with the Eurasian triangulation grid at the Bering Straight.  Great suggestion.  Thanks. 

       
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