why can’t we transmit/broadcast smells?

Question

We are able to capture moving images and sound. Why can’t we capture smells and broadcast them through a television or phone for example?

In: 3

Answer 1

Smells are made up of molecules and you can’t create these out nothing. Hypothetically you could invent a machine that disperses smells on triggers in a movie but you’d need buy, like, cartridges filled with smells which you can replace when necessary and that’s more hassle than it’s worth, so no one has done this yet other than a few theaters for selected screenings.