"Petrichor"

May 09, 2010 00:42

I saw this on Tumblr the other day.

Petrichor
"smell of rain"

(pronounced /ˈpɛtrɨkər/; from Greek petros "stone" + ichor  the fluid that flows in the veins of the gods in Greek mythology)
is the name of the scent of rain on dry earth.
The term was coined in 1964 by two Australian researchers, Bear and Thomas, for an article in the journal Nature. In the article, the authors describe how the smell derives from an oil exuded by certain plants during dry periods, whereupon it is absorbed by clay-based soils and rocks. During rain, the oil is released into the air along with another compound, geosemin producing the distinctive scent. In a follow-up paper, Bear and Thomas (1965) showed that the oil retards seed germination and early plant growth.

I love Petrichor :O Maybe I'll name one of my future kids Petrichor XD
Previous post Next post
Up