08-18-2016, 11:07 AM
In my view you depend too much on industrial (mechanical) processes rather than energy processes. I would send a nickle-iron asteroid into a near solar orbit until it warmed to near melting point then kick it into Earth orbit. A small area can then be super heated and spun off in a thread of liquid metal. Spin that thread into a cylinder that will be several times stronger than blowing air into it inflating the metal like a balloon.
This may have the strength to allow for a larger cylinder or torus. Other problems need other methods to solve.
This may have the strength to allow for a larger cylinder or torus. Other problems need other methods to solve.