"geo" wrote in news:80sUc.3789$de4.1561@trndny07:

I'm not talking about cinder blocks. Reinforced concrete is by FAR the
strongest building material generally available and in the shape of a
dome it's much stronger still. Given the same forces a stick home will
be a pile of splinters while the dome is unscathed. The numbers have
been done; it's not a mystery.
http://www.monolithic.com/plan_desig...ive/index.html


I saw a really cool documentary the other day showing a company building
concrete domes by inflating a bladder, waiting for the concrete to dry and
then deflating the bladder. It was really impressive.