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    Re: Navigation in Fog
    From: Gary LaPook
    Date: 2007 Feb 20, 02:35 -0800

    Another web site with info re polarized sky compass:
    
    http://www.time.com/time/magazine/article/0,9171,935539,00.html
    
    Gary LaPook
    
    On Feb 20, 12:07 am, Nicol�s de Hilster  wrote:
    > Thanks Gary and Frank,
    >
    > very useful links. Calibration down to one degree sounds good enough to
    > me for navigational purposes (plenty gyro compasses do not achieve this,
    > you will need a fibre-optic one for better results). The Shetland
    > Islands (due west from Bergen) were frequented by the Vikings in the
    > past, which takes two days sailing. I always wondered how they managed
    > to sail due west for two days to get there. The Sun-Stone can very well
    > explain how they did this.
    >
    > Nicol�s
    >
    > glap...{at}PACBELL.NET wrote:
    > >Try these links.
    >
    > >http://www.gi.alaska.edu/ScienceForum/ASF8/865.html
    > >http://www.navigationfoundation.org/AdmDavies.htm
    > >http://www.polarization.com/compass/compass.html
    > >http://www.polarization.com/viking/viking.html
    
    
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