Can The Human Body Handle Rotating Artificial Gravity?

Artificial gravity for spaceflight is a concept older than spaceflight itself, but we've only ever seen one small scale test ever flown in space. However decades of research have been performed to show that the human body can adapt to the conditions required for rotating artificial gravity.

This is something that BOTHERS me soooo much in movies and tv shows!

If they just 'make up' some gravity machine I'm not interested..

Nice! He talks about 'The Expanse' and how they do it the 'right way'!

@stux They even get orbital mechanics kind of right. Very unusual for a TV show.

@mansr Indeed! One of the reasons I love the show, it's quite accurate!

I think they also got the "hooman" aspect quite right! Even when we populate another planet or the belt, hoomans will be hoomans and fight lol!

@stux Have you read "Jupiter Five" by Arthur C. Clarke? He has commented that "it involved twenty or thirty pages of orbital calculations and should by rights be dedicated to Professor G. C. McVittie, my erstwhile tutor in applied mathematics."

@stux I guess the issue is what happens when we try and reach a far off planet and have to experience gravity again. Especially on a multi generational mission .

@zleap Even a few weeks or months like to Mars would be an issue with muscle and bone mass loss I think😮

Like people born on Mars, Martians would not be able to handle Earths gravity I guess


The average time astraunauts spend on the ISS is 6 months, and they recover find for earht gravity. Longest time was 14 months and he too recovered just fine in earth gravity.

So while yes it is an issue, the current methods we have of handling it are more than enough to make it workable and "safe enough"


@freemo @zleap

Oh yes! But the people on ISS have to workout for about 2 hours a day or so to keep up with the loss right :blobcatgiggle:


Yes they workout to help mediate that. Is there any reason you'd think they couldnt do the same on a trip to mars?


@freemo @zleap What :blobcatgiggle: I did not say that :flan_laugh:

But 'artificial gravity' would help so much with that! Also it's much easier for being hooman in general


For long term trips, like multigenerational, artificial gravity is a must.

But there are reasons its impractical. The gyroscopic effect would making changing directions of a craft with AG far more costly and stressful. We barely have enough fuel as is, if we added in AG due to the added fuel it would take to make course corrections it would be virtually impossible


Haha of yes for sure :blobcatgiggle: I get it that's it's not practical for now by a long shot :) But I would love to see something like that or at least a somewhat bigger station! But also that is more practical when space travel is more common


The only way I would see it as being practical is multigenerational going from one star system to another.

If you go in a straight line from point a to b and only spin up at a and spindown at b, and both a and b are close to their respective suns, then its doable. You can harvest the energy via solar panels to do the spinup and down.

Could be helpful for something like mars since mars is probably still close enough to the sun that we can use socal energy to do the spin up and down.


@stux @freemo Ok i will watch the video, but I assume that it would be possible to adjust the gravty level if artificial, Tuvok did this on learning Curve (ST Voager) to help teach his recruits to be ready for any conditions. I think Mars has less gravity, it may be that you set the gravity closer to that of Mars or reduce slowly en route, so by the time you get there, you body has adapted.


AG levels are adjusted by spinning up or spinning down the habitat torroid. Yes you can adjust it, but this too consumes energy every time you spin it up or down. So you arent really solving the energy consumption problem by doing so.


@stux It would be like on the original battle star Galectica where the kids can jump really high. on Earth,.

@zleap Wouldn't it be kids or people from Earth could jump high on Mars? :blobcatgiggle: ~38% Earth gravity ^^

@stux rotating artificial gravity doesn't make much sense to me. that is centrifugal force, in this case you'd be like a hamster on his spinning wheel, a fat hamster who doesn't need to run because the wheel spins by itself. I would like a proper gravity and for that you need mass... or star trek's gravity plates 😄

@stux this guy is really into it my choice? neutron star based coating at the bottom of the space craft

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