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Conference hydra::dejavu

Title:Psychic Phenomena
Notice:Please read note 1.0-1.* before writing
Moderator:JARETH::PAINTER
Created:Wed Jan 22 1986
Last Modified:Tue May 27 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:2143
Total number of notes:41773

770.0. "Field Discovery" by ELESYS::JASNIEWSKI (I know from just bein' around) Tue Jun 21 1988 12:11

    
    	Being the summer solstice and all, it's a good time to go out
    into the field looking for sunset alignments of stone structures. 
    It's exciting when you find one, and, they are as subtle as can be -
    you can easily walk right by a very significant site.
    
    	Last night, I went exploring with a friend, who, by looking
    at contour maps of the area, detected some geographical features
    which looked "hot". We were walking down an avenue which ran parallel
    to a road and looked very much like an old railroad bed. If it was,
    whoever cleaned it up did a good job - not a single tie, spike,
    pole or rail was evident anywhere. This bed was cut into the land
    and happened to run in the direction of the summer solstice sunset.
    
    	We came upon a large split rock sitting up on the left bank
    of this avenue. Just before the location of the rock, about 50ft
    before, there was a semicircular embrasure in the bank, on the same
    side as the rock. By centering yourself in the semicircle and looking
    through the crack, "the sun will drop right through the crack in
    that rock" my friend said. The sun hadn't quite set yet, so I took
    a look, and kicked some leaves aside to steady myself. Sure enough,
    right beneath my feet, there was a small rock marking the place to 
    stand. ("small" meaning it probably weighed 200lbs...)
    
    	About 10 minutes later, when the sun had further set, standing
    with my feet to either side of the marking rock (I'm tall...) the
    sun appeared exactly within the crack in the large split rock. It
    was like looking through a gunsight! Inspecting the split rock,
    we saw that part of it had been placed "just so" to help define
    the crack. A big stick was lain across the top of the crack, and at
    the "moment", the sun was completely bordered by the stick, and
    the crack in this rock, observed from the marked position. These
    rocks looked old, of course, the actual age of the site is really 
    indeterminate. 
    
    	My friend says that 7 days from now, the sun will not set in
    that crack, nor will it have done so 7 days previous to yesterday.
                   
    	So it seems possible that native ancient peoples of this land had 
    means to mark the change of the seasons, through using observation points
    such as the one we found last night! To everything: Turn-Turn-Turn!
    
    	Joe Jas                    
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770.1Why?MGNLIA::KASPERLife is like a beanstalk, isn't it...Tue Jun 21 1988 12:3711
This is interesting, but I have a question.  It ancient folks did construct
these landmarks to measure the change of the seasons (or whatever), how did
they know before it was constructed that it should be constructed in a
certain way in a certain place?  ie, what did they use to measure the event
before they had built these sites, and if they did have a way to measure, why
did they have to build the site to measure something they could measure
with out it???  In other words (hopefully less jumbled), what told them
that June 21st at some precise time was the beginning of summer soltice so
they could build these sights to measure it?

Terry
770.2Eureka!CLUE::PAINTERTue Jun 21 1988 15:0612
    
    That's it!  A DEJAVU Field Trip!
    
    Remember the field trips back in school?  This time we wouldn't
    even need chaperones!
    
    If we somehow tie it into learning more about computers, perhaps
    we could get our cost center managers to approve it.
                                               
    Joe Jas - great idea.
    
    Cindy
770.3not a hard problemERASER::KALLISDon't confuse `want' and `need.'Tue Jun 21 1988 15:3522
    Re .1 (Terry):
    
>This is interesting, but I have a question.  It ancient folks did construct
>these landmarks to measure the change of the seasons (or whatever), how did
>they know before it was constructed that it should be constructed in a
>certain way in a certain place? ...
    
    Actually, that's not difficult; it just takes a _lot_ of observation.
    Over time, any culture will notice which of the days is "longest"
    and which is shortest (this is independent of a specific calender,
    BTW: every 182 1/2 days would bring you to the opposite solstice
    (or between equinoxes, for that matter).  So, over a course of several
    years, by studying shadow lengths, the ancient folk could determine
    the orientation of a solstice shadow, and when it was shortest,
    extend the line through, oh, say, the rock, via sighting, etc.
    
    That's approximately the way it was done in all cultures.
    
    To put it another way, at summer solstice, shadows are shortest
    at Noon.
    
    Steve Kallis, Jr.     
770.4Sounds InterestingCIMNET::PIERSONon vacation 23/7-6/9Wed Jul 06 1988 21:339
    Re: Field Trip, good idea, if soon, otherwise I'm off to
    Colorado for Tesla Society.
    
    Sounds like an actual alignement, but if you like, give me
    a location and I can check for Old RR grades in my RR reference
    stuff.
    
    thanks
    dave pierson
770.5Any other lines?CIMNET::PIERSONon vacation 23/7-6/9Fri Jul 15 1988 21:279
    Added thought, on .0.
    It would be interesting to check for other alignments.
    "Mystery Hill" seems to have several, some centered to a common
    observation point, some "off in the bushes, and not obvious without
    a certain amount of leaf shuffling.  I believe multiple sight
    lines are fairly common at such sites.
    
    thanks
    dave pierson