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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
being an invalid.
NASA recent example [a1, Apr 11 2021]
Jogging in a centrifuge (from 2001: A Space Odyssey) [a1, Apr 11 2021]
anticipating a future franchise? [a1, Apr 12 2021]
Rendevous with Rama published in 1973
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
also done some real world research.
||Put the bases at the poles ; that way there's no precessive forces to deal with.
||//Put the bases at the poles//
||For symmetry, you could put Poles at the bases too.
||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.
||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.
||SolarDon doesnt say the centrifuges are living
quarters - just places where people could
exercise. Like health clubs, could be called
||Heinleins 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
||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.