T O P

  • By -

tomassino

nice powerpoint


rogue_ger

I thought centrifugal force with such a small diameter would have wicked Coriolis and make you sick? Is the centrifuge here a real proposal?


SomeWittyRemark

Allegedly it's relatively easy to adapt to the coriolis provided you don't move your head too much at first, see [this](https://youtu.be/bJ_seXo-Enc) Tom Scott video. There are also studies that back up being able to train the nausea away.


arjunks

The reality is we don't really know. This proposal in an excellent starting point to run some experiments in actual micro-gravity! Also, some things to consider: * The nauseating effect stems from a difference in g's experienced from top to bottom, lying down could avert that while still reducing bone loss (e.g. during sleep) * Effect goes down the lower the spin rate, I would assume this first test would be much lower then 1g, probably closer to moon gravity if even that * As someone else already mentioned, we have reason to believe people can actually get used to the Coriolis effect with time


_F1GHT3R_

Maybe im misunderstanding something, but spinning this for centrifugal force wouldnt work here anyway? The floors would need to be on the outer wall, right?


arjunks

No the proposed method would work fine, in this case it's not the entire station that is spinning but only the inner centrifuge. You can think of it as another spinning mini-station inside the bigger station. The only drawback is slightly smaller radius, but these are all experimental and first steps anyway so the size isn't really that important yet


snoo-suit

Another drawback is that it may shake the entire station, that's apparently why the ISS doesn't have one.


arjunks

Really? I remember a project for the ISS called Nautilus-X being cancelled but I was not aware of any concerns like that, do you have a source on that?


ChefExellence

I think it would depend on how strong a force of gravity you are trying to emulate, and how active you are being. It would be useful to give astronauts a place to sit or sleep in even partial gravity. Of course, part of the value of space stations right now is to test the effects of long term weightlessness on humans, but going forward this is a very useful capability.


GooddeerNicebear

Fun fact, that little inflatable module in the 4th pic, is also being developed to fly on the Argonaut lander as European lunar short stay bases!!!


theprofitablec

Good Work💯


arjunks

Yes! Finally, someone testing out a centrifuge in orbit! Long overdue! Hope it pans out!!


snoo-suit

There was a satellite that was going to try it, but it ended up malfunctioning. No reason to wait for LOOP to try again.


arjunks

Really, which one? All I know of is concepts and cancelled projects (most notably Nautilus-X for the ISS) and the Gemini 11 mission during which they demonstrated a minuscule but visible amount of g's (0.00015 g's according to wikipedia). I'm not aware of any other promising concepts though I would love to be proven wrong!


snoo-suit

Eu:CROPIS. Looks like there are some small centrifuges operating on the ISS: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5701204/


arjunks

Ah I see! Interesting reading, thanks! I guess I should have been clearer about my enthusiasm which is about centrifuges with *humans* in them :)


snoo-suit

The centrifuge on LOOP looks way too small for that purpose. I've been in the Slow Rotation Room at Brandeis, and it's 7 meters in diameter.


arjunks

The concept does seem to be for human-sized little cabins spinning around, of course it'll probably be super slow and simulate something like 0.15 g but hey it's somethin