Subject: world class border arc census was Re: real bjneng try afoot<br/>
Date: Jul 02, 2004 @ 01:23<br/>
Author: aletheiak (&quot;aletheiak&quot; &lt;aletheiak@...&gt;)<br/>
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<div id="ygrps-yiv-364610135">arif<br/>
i too believed in this arc report about easternmost gmsn<br/>
& may even have been responsible for starting the rumor about it<br/>
but i have been unable to substantiate it<br/>
<br/>
this border is set at a fixed distance from the river on both sides<br/>
presumably from both its banks rather than from its thalweg<br/>
just like the manh state line is offset from the merrimack<br/>
except doubly so<br/>
as you probably also realized <br/>
& can see here<br/>
<a rel="nofollow" target="_blank" href="http://www.lib.utexas.edu/maps/africa/gambia_pol88.jpg">http://www.lib.utexas.edu/maps/africa/gambia_pol88.jpg</a><br/>
<br/>
however <br/>
as beguilingly arclike as all this may seem<br/>
such a regime would not actually presuppose any true arcs at all<br/>
<br/>
except <br/>
i would agree<br/>
conceivably a single one centered at the headspring<br/>
<br/>
<br/>
however<br/>
the source of the gambia river is not in gambia <br/>
but in senegal<br/>
as you can also see in the above map<br/>
& therefore the simple offset regime couldnt project such a <br/>
simple terminal arc sector<br/>
<br/>
only by varying the apparent regime & reducing it to a single <br/>
offset center point in the middle of the river <br/>
could such a final true arc have been produced<br/>
<br/>
<br/>
also the map doesnt show any such terminal rounding or bulge <br/>
as one would expect in such a case<br/>
but quite the contrary<br/>
something more like a foreshortening or truncation <br/>
of the basic regime<br/>
& indeed it makes the cutoff point look quite arbitrary & artificial<br/>
& somehow distinctly at odds with the basic offset regime <br/>
<br/>
<br/>
so at this point i think the existence of an arc on gmsn hasnt <br/>
been & probably wont be demonstrated <br/>
& was just a wishful thought & misconception in the first place<br/>
<br/>
<br/>
mind you<br/>
i dont actually know how the gmsn border does accomplish this <br/>
remarkable turnabout at its east end if not in some <br/>
approximation of an arc or arcs<br/>
<br/>
& i can still imagine how it might somehow involve a true arc or 2<br/>
based at some known terminal cross section of the river<br/>
<br/>
but i dont believe there is any text that specifies to this effect <br/>
nor any map that suggests it<br/>
<br/>
<br/>
<br/>
meanwhile <br/>
i have scoured the ghost frgb lines of the period <br/>
& have discovered nothing new <br/>
so our world class border arc census is again stalled <br/>
at a top count of about 20 now & perhaps forever<br/>
<br/>
--- In <a rel="nofollow" target="_blank" href="mailto:BoundaryPoint@yahoogroups.com">BoundaryPoint@yahoogroups.com</a>, Arif Samad <br/>
&lt;fHoiberg@y...&gt; wrote:<br/>
<blockquote><span title="qreply"> &gt; Not sure, but isn&#39;t there some (at least one arc) in<br/>
&gt; the border of Senegal and Gambia.  As far as I<br/>
&gt; thought, the Easternmost point is directly east of the<br/>
&gt; Center of the arc in that border.<br/>
&gt; Arif<br/>
&gt; <br/>
&gt; <br/>
&gt; 	<br/>
&gt; 		<br/>
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