A word about... snot

Synthetic snot boosts robot nose
A layer of artificial "snot" has been found to improve the ability of an "electronic nose" to precisely sniff out aromas in foods and perfumes.
"Our artificial mucus not only offers improved odour discrimination for electronic noses it also offers much shorter analysis times than conventional techniques," said Professor Julian Gardner of the University of Warwick and one of the team behind the work.

Hmmm, and I always thought snot interfered with the sniffing. Especially those big old "boxcar boogers". Shows how much I know.

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