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Make an Electronic "Lie Detector" (part of a polygraph)

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Published on Feb 21, 2013

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This is an instructional video about making a "lie detector" project, created for my students. It is related to a polygraph in that it does measure how much you sweat by measuring your conductivity.
For details on where to buy the components in bulk, go here
https://goo.gl/JFTGry
To see an excellent video that shows how polygraphs work and the controversy over them:
https://goo.gl/7UITxt

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