"A sphere or igloo-like dome is the most efficient shape for a habitat in a vacuum."
Well which is it? Igloos aren't spheres -- they're helical catenoids.
As you say, "the devil is always in the detail."
"A sphere or igloo-like dome is the most efficient shape for a habitat in a vacuum."
Well which is it? Igloos aren't spheres -- they're helical catenoids.
As you say, "the devil is always in the detail."