Sphere World
Sphereworld, Dyson Sphere
Using incredibly strong materials similar to those in a ringworld, and adding gravity generators where necessary for strength and comfort, a spherical shell could be built to completely enclose a star.
Such a shell would then trap all stellar radiation for use by the civilization. With a radius of 149 million kilometers (about 93 million miles), the internal surface area would equal about one billion planets the size of Terra.
First posulated by Terran scientist Freeman Dyson prior to contact with the Vilani.
Also see Planetoid, Rosette, Ringworld.
Also see: Inheritors who inhabit an Ancients built incomplete Dyson Sphere.
See also: Dyson Sphere
External Links
Dyson sphere from Wikipedia
Dyson Swarms The original proprosal for a Dyson sphere, with animations and a discussion of physics.