Practical 'Smell-o-Vision' system being developed

So far as television goes, we're pretty spoilt these days. We can now watch in 3D if we want to, on a screen that is far too big for the once traditional corner-of-the-room placement, and we can also listen to heart-stopping surround sound audio - but there's still more sensory enjoyment to come. Researchers have now managed to create a proof of concept Smell-o-Vision device potentially capable of pumping out thousands of different odors, yet small enough to fit behind a TV.

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