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Horsedrawn wrote:
The short answer is yes. The rising sun lights the underside of Stone 8 (the capstone) through two apertures towards the East. One is bigger than the other, and I suspect this is due to an understanding of the Equation of Time. This subject is under study. The differences between the extremes; midwinter and midsummer, that is, how the 'daggers' of light play upon the capstone's underside, and other places, suggest strongly that the principles of the Equation of Time were understood and taken into account. I emphasise here that none of this is conclusive, but I would add that such things were understood well at the same time in Mesopotamia, so why not here?

David Kane.

Something that has always bugged me...nothing to do with the scientific applications although I daresay there is an equation to be made.....the time it would take to erect the structure...a variable no-one knows, then to get the alignment right means that it wouldn't be aligning to it's original design or purpose...(assuming we are correct in assuming it is for catching sun-rays + shadows) after this lapse of time....and of course we haven't taken into account bad weather/fog/rain etc where the sun is obscured...possibly for days. Does this indicate then that the structure would be built and the "hole" made afterwards to suit? Worth considering?

Well, the weather was better, I am reliably informed. But this question bugs me too. Sometimes I think they may have cut the stone to follow the shadows, as it was happening, as it were, and sometimes I don't. It would not have taken long to erect the structure but if it is a planetarium rather than an observatory, built to embody and demonstrate heavenly cycles then the astronomy must have been done first. I have wrestled with this for a long time. Observatory, Planetarium, Tomb, Town Hall Clock, Energy Centre, Geodesic Triangulation Point; my mind is open, it may have been all of these things. The investigation continues.

I've not been following these threads (I think I've caught the general gist tho) but what Resonox said rang a bell.

East Steel Farm in Northumberland has a modern stone circle on it, and I read somewhete that for the farmer to get it as accurate as possible, with regards solstice alignments, took him a decade, due to fog, cloud, etc at the crucial moments.

I have no idea if this is relevant, but thought it might be connected due to the difficulties incolved getting a modern stone circle to align, let alone a weeny hole (are we still going on about that or should I shut up? :D )

G x