How electronic smell-detection works

A great short video from a CalTech gas-sensing lab explains the science of gas-detection and analysis.

The Electronic Nose: Sniffing Out the Dangerous Stuff to Keep Our Noses Safe (Thanks, Scanadu)


    1.  Based on my experiences in airport security lines, the TSA desperately needs a machine that will.

  1. Did I miss it or did the video actually not explain how the sensors worked?  It seems it was 1) prep for sensors through bubbling, etc 2) hand-wave about sensor magic 3) analyze results.

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