One of the most fascinating people I had the good fortune to cross paths with while living in the Bay Area was a women who worked as a _very_ high end scent consultant. She'd routinely fly across the world to figure out how the various areas of a new Four Seasons or some such should smell before it opened.
One of the more interesting engagements she told me about was to figure out the best smell to be used in olfactory warning systems for loud underground mining environments. If you're wearing so much PPE you cant hear anything, apparently pumping the smell of gag inducing rotting cabbage is the most sure fire way to ensure everyone in the mine knows to get out _now_.
One of the more interesting engagements she told me about was to figure out the best smell to be used in olfactory warning systems for loud underground mining environments. If you're wearing so much PPE you cant hear anything, apparently pumping the smell of gag inducing rotting cabbage is the most sure fire way to ensure everyone in the mine knows to get out _now_.