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Originally Posted by Botnst
How does it work? If thermal emission, is there an optimal temp range for the catalytic convertor or something? Maybe it's a spectrograph of some sort tuned for some particular molecule at some concentration? In either case I'm having a hard time imagining something so sophisticated being used effectively by any-old cop. But then, I guess folks probably said that about Radar and Lidar, too.
Oh yeah, it's a hidden-tax funding gimmick.
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Bot- I apoligize, when I first heard this on the news tonight I was so flabergasted I didn't pay attention as to how they were measuring said particles. After I mop up the foam I have spewed forth, I'll get the rest of the details. How in the name of god can they measure the crap coming out of your tailpipe when your in traffic surrounded by everyone elses tailpipe! Traffic Nazis.