Can this structure stand without internal support?

rpenner made exactly this point, with the same reference, in this thread, in January.

I wonder if your repetition of it will bring this to a stop now. Any bets?

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If it does, perhaps I should wait 6 months and post again, asserting hotly that there is just no way that the thing can stand up without internal fixings.....and see what happens....

 

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So he did.

I guess it was too subtle without providing context for the quote and link.

 

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It's actually an Eskimo design from when wolly mammoths were being ridden by orangutans.

 

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Oh shit! Sorry rpenner, I totally missed that!

 

Easily. The distributed weight, friction of the surfaces, irregularities of the surfaces, angular placements of the material, material composition density at key stacking points, and probably an equal number of unmentioned attributes would 'support' the structure. The arch is simply a shape that supports the combination of those attributes. You could probably do something similar with an inverted cone shape or two. BTW I can't see the original img. I'm going off the rock and arch in #10.

 

It would not - and does not stand on its own , as the artist himself attests to (in an article you can no longer see):

Don't. If you read the thread, you'll that the one in #10 is a counter example.

Here is work in question:

https://www.pinterest.ca/pin/302374562471697696/

 

There is no evidence of burning wood soot .

 

The inner arch is the key .

 

Actually, the drilling, cutting and fitting of pegs and holes - as the artist himself described - is the key.

 

Plus you don't need to burn it, just pull it out.