http://www.switched.com/2007/10/04/heat-sensing-cams-police-commuter-lanes/ Switched Comments for Heat-Sensing Cams Police Commuter Lanes http://www.switched.com/media/feedlogo.gif http://www.switched.com en-us Copyright 2012 Weblogs, Inc. The contents of this feed are available for non-commercial use only. Blogsmith http://www.blogsmith.com/http://www.switched.com/2007/10/04/heat-sensing-cams-police-commuter-lanes/http://www.switched.com/2007/10/04/heat-sensing-cams-police-commuter-lanes/ The cameras will take body heat readings....

Actually, no. And hot-water dummies won't work, as the original article sorta explains:

"Human skin reacts like nothing else when hit with two frequencies of infrared light.

"'All blood is red, and all living humans have water in them, and we're reliant on those attributes,' he said."

http://www.washingtonpost.com/wp-dyn/content/article/2007/09/30/AR2007093001654.html
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