We have invented devices to record what we can see, and devices to record what we can hear.
Why haven’t we invented something to record what we can smell?
How would this work if we did?
\[When I am travelling I really wish I could record the way things smell, because smell is so strongly evocative of memories and sensations.\]
In: Technology
We can! It is called an Olfactometer. From what I gather they are used for detecting airborne chemicals, but can be used in the reproduction of smells accurately. Additionally there are specialized movie theaters that are famous for reproducing smells, most notably Soarin’ at Epcot (Disney world).
So in short: the technology exists but it is either too expensive, impractical, or unwanted as a feature to be mass produced for the masses.
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