Subject: Re: [BoundaryPoint] Re: toward happier obelisks
Date: Mar 18, 2001 @ 21:44
Author: michael donner (michael donner <m@...>)
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>
>Yeah, you caught me out. It is an old church tower.
>
>Still, it brings you back to the early days, when high spires were
>needed in order to see your next point.
>
>Triangulation was really first practised by the Dutch scientist
>Willebrord Snellius (early 17th century), who calculated by this
>method the distance between Alkmaar and Bergen op Zoom.
>
>As it so happens, I went to a highschool named after Snellius.
>
>Peter S.
>
>--- In BoundaryPoint@y..., michael donner <m@d...> wrote:
>> what a beautiful & imposing construction this is
>>
>> it fairly suggests the idea of a national cadastral cathedral
>> & a receptacle for a real point of reference to reverence
>>
>> for it seems only natural to enshrine a beginning place
>> & frankly much better to lift it skyward like this than merely to
>encrypt
>> it underground
>>
>> but did they really build the tower to mark the point
>> or did they hail it back into service in old age to hang the grid
>upon its
>> spire
>> after a previous illustrious career in some other capacity
>>
>>
>> also your info here peter appears to be the essential missing
>link for
>> really understanding what harry was saying in message 1804 about
>what
>> brendan was saying in message 1794 & earlier
>>
>> for it now seems that one of the routes to the most precise possible
>> determination of the baarle boundary cross point really begins here
>in
>> amersfoort
>> while the other route perhaps begins from the belgian counterpart
>to this
>> monument
>> wherever or whatever that may be
>>
>> i certainly hope you can lead us further along the way here too
>>
>> m
>>
>>
>> & so what if it isnt an obelisk
>> it still wins gold for our greatest uplift so far
>>
>>
>>
>> >
>> >Well, not exactly an obelisk, but this is the centre of the Dutch
>> >triangulation grid as used by the cadaster and the topographical
>> >service: <<http://www.vvv-> http://www.vvv-
>amersfoort.com/kunst/architectuur/histor1.htm>
>> ><http://www.vvv-amersfoort.com/kunst/architectuur/histor1.htm>
>>http://www.vvv-amersfoort.com/kunst/architectuur/histor1.htm
>> >
>> >So you could say it is the centre of the Netherlands (although the
>> >geographical centre is somewhere else. I vaguely remember it to be
>> >somewhere near Lunteren). It is the starting point of all
>surveying.
>> >
>> >It used to be X=0 m, Y=0 m. But then they thought it would be
>better
>> >to have only positive co-ordinates in the Netherlands, so they
>moved
>> >the point to the south-west. The grid stayed the same, but the
>tower
>> >nowadays has the co-ordinates X=155000 m, Y=463000 m.
>> >
>> >I visited the tower (Onze Lieve Vrouwetoren) in the city of
>> >Amersfoort last year. As I remember, the X and Y axis are depicted
>on
>> >the ground and radiate from the tower.
>> >
>> >Peter S.
>> >
>> >--- In BoundaryPoint@y..., jane capellaro <j@d...> wrote:
>> >> well thanx for running down that obelisk peter
>> >> & i do apologize for the horrendously bad query
>> >>
>> >> it was the resemblance between hoogstift & stifter that got me in
>> >dutch &
>> >> czech here simultaneously
>> >>
>> >> seriously glad to learn this is not an olympic contender tho
>> >> since the tallest actual tripoint & boundary obelisk i know of is
>> >the
>> >> little one at us2ctmari
>> >> of which a photo is attached below
>> >>
>> >> taller & more distinctive than this one
>> >> tho i have only half a pic of it & am hoping jack can bail me out
>> >here with
>> >> a good pic because he just visited there last year
>> >> is the commemorative quintiobelisk that stands a short distance
>> >from the
>> >> initial point of the sixth principal meridian of the united
>states
>> >public
>> >> land survey
>> >>
>> >> the actual point it celebrates
>> >> hidden in a crypt beneath a roadway
>> >> is simultaneously also both an interstate & a quadricounty point
>> >> or us2ksne3jerethwa6pm in all i think by name
>> >>
>> >> the obelisk is a quinti because lands of 5 states were surveyed
>> >from this
>> >> point of reference
>> >>
>> >> m
>> >>
>> >>
>> >>
>> >> Love,
>> >> Jane
>> >
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