Subject: new caus questions
Date: May 04, 2001 @ 00:22
Author: michael donner (michael donner <m@...>)
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>the markers mark the true border
>That rises a few questions:
>
>1) Is the CA-US border (Lake of the Woods to Point Roberts) the 49th
>parallel and the markers wrong? Do the local know the actual border?
>the markers are officially right even tho not geographically perfect
>2) Are the markers right? When and why did they change from the 49th
>parallel? How long is the longest regular stretch?
>
>A similar question came up when I studied Peter Herings new dedk pictures
>on <http://www.geocities.com/mafiapetedk.>
>http://www.geocities.com/mafiapetedk.
><http://geocities.com/mafiapetedk/borderdedk3b.html>
>http://geocities.com/mafiapetedk/borderdedk3b.html show marker 245 in the
>road and 246 just behind/right of the the tall metal post. If I follow the
>line from 245 I do not hit 246, which means
>
>1) I am optical deceived (Which I doubt as 245 is almost level with the
>ground)
>
>2) The marker lines are wrong
>
>3) There is a bend between the markers.
>
>Jesper
>----- Original Message -----
>From: "David Mark" <dmark@...>
>To: <BoundaryPoint@yahoogroups.com>
>Sent: Thursday, May 03, 2001 7:37 PM
>Subject: Re: [BoundaryPoint] caus straight or irregular
>
>
>>
>> The CA-US border (Lake of the Woods to Point Robers) consists of a number
>> of "straight" segments between boundary markers, it is sometimes as far as
>> 1/4 mile north or south of the 49th parallel.
>>
>> I put "straight" in quotes because of the issue of what constitutes a
>> straight line on the earth's surface. The usual definition of the
>> equivalent of a straight line is a great circle. But great circles other
>> than meridians and the equator have costantly changing bearings (compass
>> directions). Lines of constant compass bearing, known as loxodromes, are
>> not shortest paths unless they run north-south or are along the equator.
>>
>> David
>>
>> On Thu, 3 May 2001, michael donner wrote:
>>
>> > actually brian has filed the ultimate dissertation on this topic
>> > but it would take a search or a chase goose to get us back to it
>> >
>> > i think one basic point of his tho was that the lines between each pair of
>> > monuments are unique great circles
>> > & thus actually none of them ever aligns perfectly with any other
>> >
>> > & this is apart from the slight local irregularities that necessarily
>>occur
>> > everywhere a monument is placed
>> >
>> > whether there are more egregious zigzags or offsets than these i dont know
>> >
>> > m
>> >
>> >
>> > >
>> > >Interesting about Iraq-Jordan.
>> > >
>> > >My newest atlas show a straight line, but expedia.com shows a zig zag.
>> > >
>> > >Is the caus border between Point Roberts and Lake Wood 100% straight, or
>> > >are the local irregularities?
>> > >
>> > >Jesper
>> > >----- Original Message -----
>> > >From: "michael donner" <m@...>
>> > >To: <BoundaryPoint@yahoogroups.com>
>> > >Sent: Thursday, May 03, 2001 12:38 AM
>> > >Subject: Re: [BoundaryPoint] Re: Fiat boundaries
>> > >
>> > >
>> > >> peter mentioned
>> > >>
>> > >> >
>> > >> >--- In BoundaryPoint@y..., michael donner <m@d...> wrote:
>> > >> >> & jesper
>> > >> >> of these 5 or 3 singular fiat boundaries we have found
>> > >> >> your chad nigeria line is probably the truest & purest in the world
>> > >> >> by virtue of being totally wet as well as probably unmarked
>> > >> >> & therefore almost certainly absolutely undeflected by so much as a
>> > >> >single
>> > >> >> subatomic particle
>> > >> >>
>> > >> >> m
>> > >> >
>> > >> >Not deflected, but Lake Chad being a very salty one with fluctuating
>> > >> >amounts of water (+salt) in it, there are possibly (also fluctuating)
>> > >> >amounts of land that are cut by the boundary.
>> > >>
>> > >> actually it is now a completely dry line
>> > >> as recent photos clearly show in
>> > >> <<http://www.afrol.com/Categories/Environment/env062_lake_chad.htm>
>>http://www.afrol.com/Categories/Environment/env062_lake_chad.htm>
>> > >><http://www.afrol.com/Categories/Environment/env062_lake_chad.htm>
>>http://www.afrol.com/Categories/Environment/env062_lake_chad.htm
>> > >> if you can mentally supply where the border is
>> > >>
>> > >> still being legal but indefinite it remains the most pristine of
>>all the
>> > >> singular fiats
>> > >>
>> > >>
>> > >> btw i also just noticed that the iraq jordan boundary
>> > >> 1 of the 2 other best claimants of singular fiathood
>> > >> has recently lapsed into a rather messy de facto zigzag
>> > >> vaguely suggestive of the egypt sudan administrative line
>> > >>
>> > >> so it may well have bitten the dust for any playful purposes
>> > >> & we could now be looking at a world class set with only 2 members
>> > >> both dry
>> > >> one marked
>> > >>
>> > >> >>
>> > >> >> still cresting on my brendan waves
>> > >> >> & so wishing for the perfect moment point of happy landing
>> > >> >>
>> > >> >
>> > >> >Yes I know what you mean. The viscosity of these waves is huge, I
>> > >> >think. What substance is this? No salt water...
>> > >>
>> > >> i think it must be aurora australis concentrate
>> > >>
>> > >> responds shimmeringly to your every thought
>> > >>
>> > >> still dancing across the empyrian on it here too
>> > >>
>> > >> excelsior
>> > >> m
>> > >>
>> > >>
>> > >>
>> > >>
>> > >>
>> > >>
>> > >>
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