by joel » Wed Jul 28, 2010 2:05 pm
i would assume that fart particles attach themselves to the water vapour (perhaps due to the highly polar nature of H2O?) in the steam... since the steam acts as a better transport of these particles then typical air molecules, the concentration of fart particles that reach your olfactory sensory system is likely greater... and hence the potency of the smell.
but that's a thought... you'd be literally bathing in your own fart vapour..
this is just my opinion and you'd likely need to ask a chemist if my logic above is sound.