theythatspeak OP t1_j1ccj84 wrote
Reply to comment by Scoobydoomed in TIL The human nose can detect over 1 trillion different scents? This is because the human nose contains around 400 different types of scent receptors, which allow us to distinguish between a wide range of smells. by theythatspeak
The measure doesn't come from a smell test, it comes from how prolific the cellular bind sites are for the scent receptors. More of a "look at cells under a microscope and see what the receptor properties are" kind of thing and less of a guess and check by smelling stuff.
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