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# 1 G gravity on moon or mars

Use centrifuge to simulate earth's gravity
 (+2, -2) [vote for, against]

When/if we have colonies on the mars or the moon, less gravity will cause people to have less musculature and will dramatically decrease the bone density. This can be ameliorated by having the go/workout in a centrifuge so the edge is 1 G. This way it will be possible to return to earth without being an invalid.
 — SolarDon, Apr 11 2021

https://www.nasa.go...formance-centrifuge NASA recent example [a1, Apr 11 2021]

https://www.youtube...watch?v=W_gItDrzQEw Jogging in a centrifuge (from 2001: A Space Odyssey) [a1, Apr 11 2021]

https://www.planetfitness.com/ anticipating a future franchise? [a1, Apr 12 2021]

Rendevous with Rama published in 1973 https://en.wikipedi...endezvous_with_Rama
The centrifuge is a cylinder rather than a disk. Same principle. [AusCan531, Apr 12 2021]

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Suggested in fiction for at least fifty years, for space stations, ships, and low-gravity worlds. NASA has also done some real world research.
 — a1, Apr 11 2021

Put the bases at the poles ; that way there's no precessive forces to deal with.
 — FlyingToaster, Apr 11 2021

 //Put the bases at the poles//

 For symmetry, you could put Poles at the bases too. Pozdrowienia!

a1 is 100% correct. A widely known concept. That's why most space stations even in the movies are of a 'hub, spoke and rim' design. Zero gee at the hub, 1G at the rim.
 — AusCan531, Apr 12 2021

Actually, I don't remember any planetary living-quarter centrifuges appearing in SF... with the *possible* exception of a story by James P Hogan, but I can't remember what it was.
 — FlyingToaster, Apr 12 2021

SolarDon doesn’t say the centrifuges are “living quarters” - just places where people could exercise. Like health clubs, could be called Planet Fitness <link>
 — a1, Apr 12 2021

 Heinlein’s 1966 “The Moon Is A Harsh Mistress” also has main character mention this about preparing for a trip to Earth ...

“Had been down twice, once three months, once four, and got schooling. But meant harsh training, exercising in centrifuge, wearing weights even in bed--then I took no chances on Terra, never hurried, never climbed stairs, nothing that could strain heart.”
 — a1, Apr 12 2021

Utterly baked in SF. {-}
 — bs0u0155, Apr 12 2021

 More interesting would be non acceleration or inertial force, environment manipulated gravity designs. Most scifi just gives a future time and waves magic hands producing equipment with a switch.

Detailed imaginings can lead to new advancement paths.
 — wjt, Apr 17 2021

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