4 ms·

Kula Ring

• deleted 11y ago
  [deleted]
• btilly 11y ago
  Sounds familiar. Ah, yes. https://en.wikipedia.org/wiki/Doorways_in_the_Sand https://en.wikipedia.org/wiki/Doorways_in_the_Sand had an interstellar version of one as a plot point. :-)
  • MikeNomad 11y ago
    Heh. "Doorways" was the first thing I thought of when I saw the article's title. Doorways was excellent prep reading for grad school.