Do you take your sense of smell for granted? Most people do. However, it is the oldest of our senses and plays an important part in our daily lives, even if we're not aware of it. Do you believe in pheromones? Can you tell what you would get by mixing the smells of fat, bananas and manure? Can a chemist look at the structure of a molecule and predict what it will smell like? Recent research has revealed just how complex this amazing sense is. Come and find out some answers and perhaps even find your concept of reality being challenged.