This isn't artificial gravity, its just rotational force.<p>The wikipedia article even suggests that the solution to motion sickness is slower rotation, achievable with larger diameters.<p><a href="https://en.wikipedia.org/wiki/Rotational_gravity" rel="nofollow">https://en.wikipedia.org/wiki/Rotational_gravity</a><p>Says it takes a ~224M radius at 2 rpm to get earth gravity. Given the ISS is 108M wide seems pretty doable with current technology if we really wanted to.<p>There is also a pretty interesting chart here <a href="https://ase.tufts.edu/cosmos/view_picture.asp?id=748" rel="nofollow">https://ase.tufts.edu/cosmos/view_picture.asp?id=748</a>
about asteroid size vs rotational speed.
This isn't "artificial gravity", this is just a centrifuge, and those have been used for decades in High-G training. See: <a href="https://en.wikipedia.org/wiki/High-G_training" rel="nofollow">https://en.wikipedia.org/wiki/High-G_training</a>
Why not use this on Earth to build more robust humans, might be an athletic training hack. Wouldn't you get the opposite of bone loss and muscle loss? So, increased bone and muscle density. Must be good for something. Might be tough on the cardiovascular system though.<p>Oh, and "artificial gravity"? Please already.
This is cool and seen on many science fiction show. The engineer in my head wonders, how do you make the transition between various 'donuts' compartments and various levels without getting limbs chopped off? Only by the center via a tube?
Ah yeah, professor Clark has been doing this for a few years. He's a cool dude and the whole BioAstro group is really top notch.<p>I was very nearly a test subject in this experiment.
I think there are still lot of technical challenges to design something like this for long space missions but the design needs lot of space and resulting structure can be enormous.