5 replies to this topic

[Anew]

Note : This figure shows a right-triangle with a 57.3 degree radian-angle which approximates a 7:11:13 triangle.
The figure in the next post shows a true 7:11:13 triangle, though the differences are very slight.


Irish Field Triangle

 Irish_earthcut_triangle_b.jpg   494.92K   13 downloads

(antiquity unknown)


An interesting triangular mark in an Irish field, (shown in magenta), with extension lines to a nearby stream, shown in blue.
These lines meet the stream where it runs, roughly, (though its course may have changed over thousands of years), east-west;
a direction for flowing water which seems to have been meaningful in the beliefs of the Isles.
(The stream itself generally runs westward)

The triangle appears to be a 7:11:13 near-right, the intermediate angle of which approximates one-radian.
This is a shape which may have been important in the construction of the Long Meg ring, White Moss, and the Grey Wethers pair.
What  appear to be remnants of other earthcuts (and an earthwork) involving similar angles or triangles may be seen nearby.

Base image: Google Maps . The image title is a link to their site.

[Anew]

Postscript :

In the above example i used a triangle with a true right angle, (which the 7:11:13 doesn't really have), and a closer approximate, (57.3 degrees instead of 57.79), for the radian angle . Perhaps they also did it this way or perhaps they did not . The figure below shows a true 7:11:13 triangle, (to a high magnification, the ends met all around) . At 100% scale, (on screen), there is no discernible difference between these ; although the new NW extension line passes about 1 millimeter to the clockwise of the old one by the end . The new lines are also extended to reach some marks on the far bank, but essentially, the figures are the same.

 IrishFieldTriangle_c.jpg   495.67K   7 downloads

[kevin.b]

Anew,
       It's really difficult with those colours to see the lines.
Kevin

[Anew]

kevin.b, on 10 May 2009, 10:18, said:

Anew,
       It's really difficult with those colours to see the lines.
Kevin

Yeah, kinda . I've been told that - i make graphics too light.

[kevin.b]

Anew, on 10 May 2009, 15:34, said:

kevin.b, on 10 May 2009, 10:18, said:

Anew,
       It's really difficult with those colours to see the lines.
Kevin

Yeah, kinda . I've been told that - i make graphics too light.

It shouldn't really be a problem for myself, as I follow the invisable anyway?
Kevin

[Anew]

kevin.b, on 10 May 2009, 12:30, said:

Anew, on 10 May 2009, 15:34, said:

kevin.b, on 10 May 2009, 10:18, said:

Anew,
       It's really difficult with those colours to see the lines.
Kevin

Yeah, kinda . I've been told that - i make graphics too light.

It shouldn't really be a problem for myself, as I follow the invisable anyway?
Kevin

It does appear that the 'Old Ones', as i call them, had similar things in mind.


More on the stream: Further west, (upstream), someone has photographed a small dolmen.