Mike
You're on to something.
If our nose picks up the vibrations, and they invent a tool that can read the vibrations, then they can also generate the vibrations.
It'll be Dr. Scratch & Sniff on steroids!!! Any smell you want anywhere. Think of the uses! Pheremones, Agriculture, Dog Training, Crowd Dispersal, Delicious Cinnamon Roll smells regardless of how bad the cooks are, ....