Case (
case) wrote in
fandomsecrets2014-01-02 06:49 pm
[ SECRET POST #2557 ]
⌈ Secret Post #2557 ⌋
Warning: Some secrets are NOT worksafe and may contain SPOILERS.
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Notes:
Secrets Left to Post: 01 pages, 013 secrets from Secret Submission Post #364.
Secrets Not Posted: [ 0 - broken links ], [ 0 - not!secrets ], [ 0 - not!fandom ], [ 0 - too big ], [ 0 - repeat ].
Current Secret Submissions Post: here.
Suggestions, comments, and concerns should go here.

OP
(Anonymous) 2014-01-03 01:40 am (UTC)(link)"ringworld: an artificial ring about one million miles wide and approximately the diameter of Earth's orbit (which makes it about 600 million miles in circumference), encircling a sunlike star. It rotates, providing artificial gravity that is 99.2% as strong as Earth's gravity through the action of centrifugal force. The ringworld has a habitable, flat inner surface equivalent in area to approximately three million Earth-sized planets. Night is provided by an inner ring of shadow squares which are connected to each other by thin, ultra-strong wire (shadow-square wire)."
http://en.wikipedia.org/wiki/Ringworld
Niven did it first, but several borrowed it from him after the fact. The picture sort of explains how it would look from the inside; if you were staring up, you would see space, but you would see the curve of the ring on your "horizon" as well.
Re: OP