2.3K views · 64 reactions | Have you ever wondered if lie detectors actually work? Did you know you can spot one @amhistorymuseum? Join us as we delve into the history and science behind these devices - from how they measure “deception” to the controversies surrounding their use. Stay tuned for more episodes of National Treasure, where we share behind-the-scenes stories of objects in the Smithsonian Collections. | Smithsonian Magazine | Facebook