Joel White and John Kauer, neuroscientists from Tufts University Medical School in Boston, MA have developed an electronic nose. The secret to their sniffer? DNA. Kauer and White say the device could have medical applications or be used for industrial clean-up. The Department of Defense and other government agencies are interested in the electronic nose for security applications--mine detection, for example. Watch the video to find out how the e-nose works.
Produced by Flora Lichtman. Additional producer: Charles Bergquist. Music from Prelinger Archives.