Frank introduces the theme of this edition of Odorama - The Smell of Rain.
Most of us remember how the streets smell after a summer rain. This smell is called petrichor and is partly caused by the organic compound geosmine and bacteria that help organic matter decay. Over time these build up under stone and earth, the rain releases their perfume. The Smell of Rain was a homage to this natural phenomenon. We looked into the microbes that cause the pleasant smell after rain, humans' sensitivity to geosmine and the art installation by Saša Spačal that has captured this distinct scent.