https://en.wikipedia.org/wiki/Vibration_theory_of_olfaction
Had no idea it's just a theory. I've lived many years "knowing" that we detect smells due to their shapes.
But while searching, I came across this: https://www.bbc.com/news/science-environment-21150046
Had no idea it's just a theory. I've lived many years "knowing" that we detect smells due to their shapes.