National Geographic : 1976 Jul
wastes, and automated cultivation, pol lination, and harvesting-are all fulfilled on the superproductive farms of the colony. A monorail along the top serves for mass transit, with stations at each of the six sup porting spokes, such as number 2 shown here. Within the spokes, elevators carry passengers to the torus's low-gravity hub. At upper left and in an enlargement (left), repairmen working in a yellow service pod on tracks mend the glass "sky" by replacing a faulty pane that has let some of the habi tat's atmosphere escape. But there is no dan ger, and people along the catwalks look on with only mild curiosity. To them, the scene, the idea, the reality has become part of life's routine on colony L-5, named for its location in space (page 83).