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Posted by Happy Time Harry on August 29, 2007, 7:10 pm
Jack Campin - bogus address wrote:
>
> : Ever seen a "flat arch"? E.g.:
> : http://www.stratfordhall.org/architect/flatarch.html
>
> Flat dome in this instance, I guess. You can see how to extrapolate
> that by a dimension.
>
When I was looking at the picture of the basement I was thinking of
exactly this thing, an arch with infinite radius. If the stones are
thick enough then perhaps the non-normal facets would produce enough
horizontal force from the weight of the rock to keep the ceiling up.
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