Until Turin came along, most people thought scent came from a molecule's shape.

FORBES: The scent of money

He remembered an earlier article he'd read about a radical--though discredited--theory: that smell came not from a molecule's shape, but from its vibration.

FORBES: The scent of money

An established method that of taking images of the electron densities of the relevant atoms in order to work out the shape of a molecule does not offer any clues as to which model is right.

ECONOMIST: Synthetic biology: Expanded vocabulary | The