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How Do Polygraph Machines Work?
3:12
YouTubeBrainStuff - HowStuffWorks
How Do Polygraph Machines Work?
Also known as 'lie detectors,' polygraphs are used to record an individual's vital signs, such as breathing rate, pulse, and so forth. Check out this episode of ...
195.6K viewsNov 1, 2013
Polygraph Test Prank
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Ariana Grande & Cynthia Erivo vs. Lie Detector | Vanity Fair
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Understanding the Polygraph Test: How It Detects Lies
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