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0 votes
2 answers
174 views

Help me create a more believable artificial planet

Ok, I noticed some very intelligent answers on this platform and I would love your input on the planet for my book trilogy. I have been working on the blueprint, story structure, and characters for ...
Luke's user avatar
  • 9
6 votes
6 answers
3k views

How fast would the Moon (Luna) need to rotate so that anyone living in Lunar underground habitats would experience Earth-like gravity?

So I'm creating a sci-fi book, and I'd like to know a way to calculate how fast would the moon need to spin to create a certain amount of gravity, and how much energy would be required to get it to ...
OptimusePrime's user avatar
3 votes
3 answers
155 views

Artificial Gravity Supermax

Set 50 years in the future. A supermax or super maximum security prison is a lockup facility to hold dangerous criminals, most of them are being sentenced for at least 1000 years of life imprisonment ...
user6760's user avatar
  • 48k