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Re: Ireland
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Harryshill wrote:
Do you mean that because of the distance between the eye, stone and subject that there is less error than say a small amount of distance , like the sights of a gun?


It's basically perspective and is meaurable /predictable . If an object is moved 1 metre in any direction when it is 5m distant from an observer it would be noticeable and change the "alignment " between observer and object considerably but if the object was 50 m distant the effect of a one metre shift would be much less noticeable and the difference between the two differnet orientations would also appear much smaller . Moving something 25 metres is a lot when you are close but when you are 2.5km away , if you can still see it to measure , the difference would would be less than a degree .


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tiompan
Posted by tiompan
9th December 2012ce
18:33

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Re: Ireland (Harryshill)

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Re: Ireland (Harryshill)

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