Using this strategy, the scientists found that odor molecules could similarly be mapped onto a curved surface in three dimensions. But instead of a sphere, like Earth, it turned out to be the shape of a Pringles potato chip -- a shape mathematicians call a hyperboloid.
— It's Science Friday! Read more at What's that smell? Scientists find a new way to understand odors: A mathematical model reveals a map for odors from the natural environment at Science Daily.