1: Lying
Richard Wiseman's On Your Mind
00:00
How to Tell if Someone's Lying
polygraph invented 1910s, 1920s by William Molten-Marsden. He had this idea that you could link people up to a machine that would monitor your physiology. And the liars would then, physiologically, be more active. So in my opinion, polygraphs aren't really the best way of telling whether someone's lying.
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