petrichor-how we all love it, but ever wondered what exactly is it? a mundane explanation for this fragrance- the word is constructed from Greek petra meaning stone and ichor,the fluid that flows in the veins of Gods in Greek mythology.What happens is that an oil exuded by certain plants during dry periods is absorbed by clay based soils and rocks.With rain,this is released into the air,along with geosmin, a metabolic byproduct of bacteria, producing that subtle yet heady scent.
Posted on: Wed, 10 Jul 2013 03:00:01 +0000
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