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    Re: Dip uncertainty
    From: Alexandre Eremenko
    Date: 2004 Dec 8, 16:21 -0500

    Frank,
    
    On Wed, 8 Dec 2004, Frank Reed wrote:
    
    > The physics of refraction in air is straight-forward.
    > Creating density
    > profiles is also no problem.
    > Integrating the equations numerically is no  problem.
    > But it's not science...
    
    Why not? Theoretical prediction IS science.
    Its verification is a separate business.
    
    By the way, if one wants to experiment, no dipmeter
    is necessary to measure the dip.
    One can determine her position by GPS, and then compare
    observed altitudes with computed altitudes.
    Of course it is better to use a theodolite from the sea
    shore, because we are talking of rather small effects,
    comparable with sextant observation errors.
    
    What would be harder for such amator experiments,
    is to get a temperature profile for given time.
    
    Alex.
    
    
    

       
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