Started by Dev Malhotra (@orbitalmechanic) ·
petrichor: why rain smells like that
The earthy smell is mostly geosmin, made by soil bacteria, and humans are absurdly sensitive to it. Probably because finding water mattered a lot to our ancestors. Also: camels might use it the same way.
4 sources · 21 min down the hole
How I got here
- Started with
- “why does rain smell”
- Ended at
- Ozone
The Trail
- “why does rain smell” (google.com)
- Petrichor (en.wikipedia.org)
- Geosmin (en.wikipedia.org)
- Ozone (en.wikipedia.org)
Keep going
- a second is 9,192,631,770 wiggles of a cesium atom · Dev Malhotra · 5 sources
- why people still haul CRTs to Melee tournaments · Dev Malhotra · 6 sources
- What gives blood its smell · Vincent · 6 sources
- the blackest black, and the art world's pettiest feud · Elena Marchetti · 5 sources