Put a smell on it

The composer Hans Zimmer scored the Pirates of the Caribbean series, The Dark Knight Trilogy, Interstellar, Blade Runner 2049 and many more blockbusters. Recently he has composed the sound of BMW's electric engines. Sound design is no news to the world of mobility. Car doors are meticulously designed to emit the right, trustworthy sound when slamming. And anyone who has flown in a Tupolev Tu-154 will appreciate how discomforting certain noises in planes can be. Design isn't just visual as...