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    Re: "Improved" sextants
    From: Alexandre Eremenko
    Date: 2006 Jul 4, 16:43 -0500


    Lu,

    > In my original note I speculated on two way to do this -- one by sonar
    > ranging to the water's surface, the other by actually lowering a device
    > to the surface of the water.

    When I recently traveled on a small boat,
    I just took a rope, lowered its end to water,
    and measured with the ordinary ruler.
    This gave excellent results:-)

    Alex.



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