Prof. Lewis at Caltech has been working on this since at least the late 1990s, when I first learned about it as an undergraduate, and probably earlier: http://

Prof. Lewis at Caltech has been working on this since at least the late 1990s, when I first learned about it as an undergraduate, and probably earlier: http://nsl.caltech.edu/research:nose http://nsl.caltech.edu/research:nose