What if the world was a glorious donut?
October 26, 2009 8:09 AM Subscribe
If I'm sitting on the terraformed surface of a Culture orbital, what does the horizon look like?
posted by reverend cuttle to science & nature (12 answers total) 7 users marked this as a favorite
For those unfamiliar with Iain Banks' Culture novels, imagine an artificial ring spinning on its axis
and revolving around a star. People live on the inside (concave) surface of the ring.
Ostensibly, the curvature of the ring is gradual enough that the ground beneath them appears flat, as it does on the convex surface of the Earth. But what do they see when they look to the horizon? Can they see the far edge of the ring? Every time I try and picture this, my brain stops working.
Thanks for indulging a nerd.