I’m grateful to Dr. John G. Cramer of the University of Washington in Seattle and “The Alternate View” columnist for Analog Science Fiction and Fact. He offered expert advice that helped immeasurably in the creation of the research station Einstein and, particularly, in the descriptions of what it would feel like to live and work in an environment in which gravity is provided by radial acceleration.
I’m also indebted to the late Gerard K. O’Neill and the Space Studies Institute. The society to which Barbary emigrates grew out of Dr. O’Neill’s proposals for permanent inhabited orbiting colonies, the mass driver, and other practical ideas for allowing human beings to live in space.
— VNM