Scientists sniff out useful applications for robotic nose. Dick Wilson, contributor. CNN (April 17, 1997). "Scientists have endowed computers with eyes to see, thanks to digital cameras, and ears to hear, via microphones and sophisticated recognition software. Now they're taking computers further into the realm of the senses with the development of an artificial nose.... 'We have tested 40 distinct materials, some of which are complex mixtures, things like cologne,' said David Walt, a professor at Tufts University near Boston. And the man-made nose is right about 97 percent of the time, he said.... Developers of the nose say its real-world applications might include medical diagnostics and monitoring for household fumes or environmental contamination."