> engineering challenges not fatal flaws
These challenges are on the order of "non-flammable paper" or "non-magnetic iron"
These challenges are on the order of "non-flammable paper" or "non-magnetic iron"
These exist, but are not common.
> "non-magnetic iron"
Austenitic stainless steels are a thing.
https://en.wikipedia.org/wiki/Austenite
So I'm not sure if I like those examples. It's more along the lines of using baked clay under tension, or a rope under compression.
Not sure whether this would actually work in practice though or whether it would be better than the simple metal sphere design.
Seriously, this isn't a tent.