Sweat duct helps detecting lie

Apr 8th, 2008 | By admin | Category: Technology

Researchers have found that sweat ducts can be used to detect lie. In a experiment, researcher beamed electromagnetic waves at a frequency of 100 GHz at the hands of test subject and found that percentage of the beam was reflected. They found a strong correlation between the reflected beam and blood pressure and pulse rate.

This method might end up becoming a lie detector without physical contact.

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