Olfactory flaw

New evidence suggests that a theory to explain our sense of smell posited in the 1990s might actually be valid and that the conventional view of olfaction is flawed. Findings by Klaus Schulten of the University of Illinois and colleagues support a theory due to Luca Turin that suggests that our sense of smell essentially works by analyzing the vibrational spectrum of smelly molecules as well as looking at the shape of the molecule. Most scientists in the field think that shape and surface characteristics are the only important olfactory cues whereas proponents of Turin's theory suggest that it is purely a matter of vibration. Schulten's team sit in a third camp that sees a combination of both factors at play based on their energetic calculations of the olfactory process.