derive from an oil exuded by certain plants during dry periods, whereupon it is adsorbed by clay-based soils and rocks. During rain, the oil is released into the air along with another compound, geosmin, producing the distinctive scent.

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is nitric oxide

My coffee table is a big slab of shale that I found out in the forest, and I can get that rain smell just by sprinkling some water on it.

Just did an experiment with said table, and here are the results:

Jason Rohrer’s free indie experiment Passage is a pixel-art, 256 colour maze game, of sorts. While you can head in several directions, there’s only one ultimate destination - and that’s your death.

literally translates to "earth smell", is an organic compound with a distinct earthy flavour and aroma, and is responsible for the earthy taste of beets.

"Passage is meant to be a memento mori game. It presents an entire life, from young adulthood through old age and death, in the span of five minutes. Of course, it's a game, not a painting or a film, so the choices that you make as the player are crucial.