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    Re: Did chronometers introduce economics to navigation?
    From: Brad Morris
    Date: 2018 Mar 18, 11:17 -0400
    Hello Ed

    The book makes an assertion
     "that chronometers were the first devices to introduce economics and cost/benefit to navigation. This is quite an assertion and though simplistic, is an interesting statement about navigation."


    That seems wrong to me.  Metal sextants provided a distinct benefit to the navigator, that being precision.  Precision that a wooden sextant could not provide simply because of the instability of wood.  Obviously, a metal sextant would cost more than wooden one.  I believe Frank has indicated metal sextants were made to get the precision necessary to perform lunars.

    So there it is, a more expensive instrument which provides a distinct benefit to the navigator, used to perform a new task, to wit, lunars.  

    Every navigator would have to weigh the benefit (longitude by lunars) against the cost (metal sextant and appropriate tables).   Ergo: cost benefit analysis.

    Brad





    Williams argues that chronometers were the first devices to introduce economics and cost/benefit to navigation. This is quite an assertion and though simplistic, is an interesting statement about navigation.


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