On 14-10-2014 22:43, Bald Eagle wrote:
> Orchid Win7 v1 <voi### [at] devnull> wrote:
>
>> I don't know about strange - looks quite inviting to me. And it's far
>> too normal to be described as "crazy".
>
> I think the first thing that struck me as odd were the round joints and
> cylindrical tenons.  I was wondering how it wasn't tilting like a parallelogram.
> Granted, it has supports, but I would have thought there would be resistance to
> folding inherent in the joints.
> I've also never seen such large timbers with such tightly machined joints.

I think that the way the 'parallelogram' is constructed prevents it from 
collapsing: two horizontal beams on each side of the columns in 
particular, and all tightly joined together by the horizontal cylinders. 
Consider also that composite wood beams like these have a far greater 
tensile strength than beams made of a single wood trunk/branch.

Thomas

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