

The command center of the Vanguard-long forgotten to the humans- where the main character Hugh eventually can "see the stars" is in what seems to be the uppermost deck. The humans live in the lower decks where the gravity level is normal, while the mutants live in the upper decks, where the gravity is weaker and the more weaker as one climbs up. The ship is described as a huge cylinder with many layered decks. I have a question regarding the structure of the spaceship Vanguard featured in Heinlein's 1941 novel Orphans of the Sky (Wikipedia' synopsys here).
