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How electronic smell-detection works

Cory Doctorow at 10:55 am Tue, May 22, 2012

Kindle

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)

I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.

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Comi Lee

Professor Farnsworth Smell-O-Scope
http://galacticwatercooler.com/wp-content/uploads/2008/02/post-smelloscope.jpg
show me

But will it tell you who farted?
- Guest
  
  Based on my experiences in airport security lines, the TSA desperately needs a machine that will.
Haroun

How long before Smellovision weplaces television?
- http://profiles.google.com/westcarleton Ray Perkins
  
  I read that in my Elmer Fudd voice.
noggin

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.