More to explore:
Don Davis - The Stanford torus was proposed during the 1975 NASA Summer Study, conducted at Stanford University, with the purpose of speculating on designs for future space colonies (Gerard O'Neill later proposed his Island One or Bernal sphere as an alternative to the torus). "Stanford torus" refers only to this particular version of the design, as the concept of a ring-shaped rotating space station was previously proposed by Wernher von Braun and Herman Potočnik. Internal view.
1970s sci fi art
Impressive 1970s NASA Space colonies concept art
Space Colony (Donald Davis) 1970s. I use to look at this picture in a book i had about how we would live in the future. I love it.