# Can (human) gas propel someone in a contained space station?

I am NOT trying to be lewd, but I had a student ask this. Yes, she may have been tongue-in-cheek, but I promised to answer her. And yes, I am trying to keep this as practical as possible.

If and when someone passes gas while in a space station (contained environment in microgravity), would there be enough acceleration to push the person into another position? I don't need direct math, or even biology, but I'd like to return an answer to my student. My suspicion is, physically in a vacuum, yes of course, but on, say, the ISS, would it really direct you?

I am not trying to be lewd, but genuinely want to know the magnitude of order of a fart within the confines of a habitable space station in microgravity to answer her question. If there is literature on it, that's great.

I have great respect for the SE community: so please don't think I'm being silly; I'm happy to have this removed if you find it inappropriate; but I promised a space answer.

• These is a very good video on channel PBS space time titled "Could you fart your way to the moon?" I think it is related to your question. link – Knu8 Oct 24 '16 at 11:34