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3 votes
3 answers
206 views

What to do so the sun (light source) appears to be following a daily cycle on a McKendree cylinder?

In my setting, a McKendree cylinder (a rotating habitat so large it holds its own atmosphere) is orbiting the sun, with the top of the cylinder pointing at the sun. How do we make the sun appear to ...
koi's user avatar
  • 431
3 votes
1 answer
164 views

Can you build convection currents out of hollow air?

Recently, I found this image by the Redditor "Keeperofbeesandtruth": He made it free to use, as he doesn't intend on being serious about his own project. So here's my plan: Keep the ...
JohnWDailey's user avatar
  • 14.6k