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    Re: My first observations+photos
    From: Alexandre Eremenko
    Date: 2005 Aug 12, 08:35 -0500

    Dear Joel,
    Thank you for your comments.
    Here are some pictures illustrating my report:
    1. My preferred observation position:
    http://www.math.purdue.edu/~eremenko/sailing/sext.jpg
    (I try to be as close as possible to the center of
    the ship rolling/pitching/yawing)
    2. Attempts to photograph the waves:
    http://www.math.purdue.edu/~eremenko/sailing/waves1.jpg
    http://www.math.purdue.edu/~eremenko/sailing/waves2.jpg
    (The waves never look as impressive on a photo as they are
    in reality:-(
    3. Typical weather during the trip:
    http://www.math.purdue.edu/~eremenko/sailing/alex2.jpg
    4. But sometimes it was like this:
    http://www.math.purdue.edu/~eremenko/sailing/karina.jpg
    http://www.math.purdue.edu/~eremenko/sailing/sail1.jpg
    for example, on the day when I managed to calibrate my Bris
    sextant (details on this sextant and my trials of it will
    follow in a later message)
    5. The boat (moored in Cowes) and its crew:
    http://www.math.purdue.edu/~eremenko/sailing/karin2.jpg
    
    > Also the limitations of the inverting scope in rough going.
    
    With some experience and a good
    helmsman it is perfect. I still tend to use it under all conditions,
    though my straight one is OK too, especially after Freiberger put
    some grease in it. If I had to choose only one scope, there is no doubt
    that I'd choose the inverting one.
    
    > I always
    > took the sight standing and from the crest of a wave never the trough.
    
    The boat I traveled in was a pretty large "small boat", 42 feet long.
    So my sitting position on the top of the cabin roof was high enough.
    
    I always took the sight from the crest of a wave, otherwise the horizon
    is simply not vizible, as you can see on picture
    http://www.math.purdue.edu/~eremenko/sailing/waves1.jpg
    which was
    taken in standing poisition from the cockpit.
    
    Alex.
    
    
    

       
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