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    Re: Ancient mariners enjoyed Hawaiian holidays
    From: Michael Daly
    Date: 2007 Oct 31, 01:34 -0400

    Clive wrote:
    
    > How do you find its direction and how do you deduce that its direction is
    > unexpected and therefore of navigable interest ?
    
    Very good point and I'm guilty of not thinking critically about this
    info.  Most of my experience with currents is in inland waters where
    they can be quite visible (like a line of bubbles between two slightly
    different coloured areas of water) as in two big rivers meeting or a
    river flowing into a large lake.
    
    On the ocean, you'd be swept along with it and, out of sight of land as
    you say, there's no point of reference.  I suppose the only means of
    detecting the current is if it regularly swept along flotsam (of the
    natural kind) and it could be identified from a distance as one
    approached.  Knowing nothing of Pacific currents, I can't say there's
    any location where this wild hypothesis is possible.
    
    > It is conceivable the pacific islanders navigated over long distances,
    > although I remain unconvinced that they did so with any prepared passage
    > plan, but principally I argue that it would be impossible to navigate using
    > this method.
    
    If they ran regular trade routes, I can see it possible to do the
    planning.  However, your contention that using currents is not feasible
    is valid until I or someone can identify a legitimate way to do it.
    
    Mike
    
    
    
    
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