
Last Word
How can our own farts smell tolerable when other people’s smell awful?
Regulars
51¶¯Âþ's popular Last Word series gives readers the opportunity to answer each other's questions about everyday science phenomena, from the shape of scones to the evolutionary history of toenails. To answer a question or ask a new one, email lastword@newscientist.com
Issue no. 3375 published 26 February 2022