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 Head To Head The Modern Antiquarian General Discussion Forum | Start a topic | Search |
 Re: Wirral Megalithic Sites 28 messages | Select a forum: |
| Hello. Thanks for your comments on uncertainty. There are several sources of uncertainty on such sites. 1. the original layout of the stones over long distances using ropes or pacing dividers. 2. the errors of surveying by the OS mappers. 3. errors in my measurements using the 25 inch maps. However providing the errors are not systematic they should not significantly distort the intended figure...in these cases the intention was clearly to create true circles. The probability of finding 7 stones (of 9 stones in the area) lying on such a circle by accident is minute at Overchurch. The multiple circle layout at Arrowe Park is even less likely to appear by chance. I do not have the space here to explain statistical theory. Please see my book. The point about OS mappers sometimes including all stones in an area is valid. However that makes it even less likely that a group of stones would happen to form a geometrical figure on the ground. Professor D P Gregg Reply | with quote | Posted by david gregg 20th November 2017ce 12:36 In reply to: Re: Wirral Megalithic Sites (thesweetcheat) |
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