I went out for a brief walk this afternoon. It was raining, but not so hard you needed an umbrella (I hate umbrellas anyway). And so very strong, the smell of rain. I remember once reading out a poem of mine and having someone come up after the reading and note that I'd used the phrase 'the smell of rain'. I couldn't tell if he liked it or was simply taking the mickey (the latter, I suspect, as he was a very 'cool' poet and I am, manifestly, not). I wondered about the smell. To me it's always been obvious. But today I decided to go and find, and here , via the ABC and CSIRO, is some hard data. The common rain smell comes from a gas called petrichor. Apparently, volatiles evaporate from plants and are absorbed by rocks, concrete etc. When the rain hits the rock, the volatiles are released into the atmosphere. That's why I can particularly smell it wandering along concrete paths and past sandstone walls. If it's good enough for CSIRO, it's good eno...
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Good to see you post something, a bit of stick in the eye for the illness gods. Can't keep a good gal down...