# Mitigating nausea when generating artificial gravity by centrifuge

When utilizing "artificial gravity" generated through a rotating structure using centripetal force, i.e. a centrifuge, is there a minimum diameter or some other attribute that causes or helps alleviate any kind of nausea or motion sickness in humans?

• The soviet union did some ground experiments of this using centrifuges, you may want to research that. – GdD Jun 19 '15 at 8:56
• If it helps, I discuss a bit those Soviet centrifuge experiments that @GdD mentions in this answer to Adapting to Increased Gravity on Alien Planets. Including effects on cosmonauts that such a system had. – TildalWave Jun 19 '15 at 11:47
• Other "attributes": There are pills against nausea. Astronaut selection would prevent it since some never have any problem with it. Rotation should be similar to the sinodal ride on the waves at sea. – LocalFluff Jun 20 '15 at 5:44
• partially related to my question (which is unanswered if you want to take a whack at it) – Premier Bromanov Sep 29 '15 at 20:10

The problem is about a so called 'comfort zone'. In fact it is not radius but a ratio of radius and angular velocity. Nausea or motion sickness is caused mostly by Coriolis acceleration which makes 'artificial gravity' different form nearly homogeneous earth gravity.

There is a real expert on topic Theodore W. Hall. Among a lot of staff about artificial gravity he published an

online calculator

which may provides the best answer of the question.

Direct answer if your question is R<12 meters or <60 m for 1 g.

By the way, it is what the quality Sci-Fi movies lake 'Odyssey 2001' depicted. Arthur Clark and Stanley Kubrick have had some info on topic.

• Shouldn't the less-than signs be greater-than, e.g., R>12 meters? – Ben Crowell Jun 22 '15 at 19:11
• @BenCrowell I second Ben Crowell's comment. Val, you have a serious typo, I think. – Matthew Christopher Bartsh May 7 at 20:09

Is there a minimum diameter? Yes. Every study I've come across agrees on that.

What is that minimum diameter? As I found while answering this question over on WorldBuilding.SE, there's quite a bit of disagreement there. Allowable minimum diameters vary from as high as 180 km to as low as 8 meters.

• very good link and very interesting, thank you. – agent provocateur Jul 7 '15 at 23:48