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 Head To Head The Modern Antiquarian Stonehenge Forum | Start a topic | Search |
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| [quote="The Eternal" But, the balls theory is a very good one in principle. Nowt has been found, basically meaning it is a non-starter, but a good theory in terms of the coeficient of friction, which can be applied to any condition. However, to be realistic, the balls would have to vary in size, or be of maximum size, depending on the hardness of the ground. Smaller diameter balls will sink in soft ground. Maybe an optimum size could be produced, which would work well on all ground. TE.[/quote] As I understand it TE the balls never touched the ground surface, they were placed between trackways like you would have in a roller door as an example. 'To test the theory, researchers from the University of Exeter constructed a model in which wooden balls were inserted into grooves dug out of timber planks. When heavy concrete slabs were placed on a platform above the balls, held in position by more grooved tracks, they could be moved with ease'. The precision needed to do this with the tools available at the time makes a nonsense of the whole idea. I have been a qualified carpenter/joiner for 45 years and if anyone thinks they can chop down trees and make beautifully precise planks with precision grooves in with just a stone axe then they need to wake up to reality. Using stone on stone we have seen how precise man can be, but not on green or seasoned wood...not a chance! Maybe the archaeo should gives us a demo of his woodworking skills (g) Reply | with quote | Posted by Sanctuary 19th November 2010ce 08:19 In reply to: Re: Ball bearings used to build Stonehenge (The Eternal) |
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