Watch Thomas Jefferson | Ken Burns | PBS
Watch Thomas Jefferson | Ken Burns | PBS
Mar 17, 2021
pbs.org
Polygraph
Polygraph
Jan 24, 2008
monticello.org
Happy #HandwritingDay! Thomas Jefferson wrote roughly 19,000 letters during his lifetime and used this device, the polygraph, to create copies of his correspondence. The polygraph worked by having the writer's hand move one pen while a second pen mirrored its movements. The result was a copy strikingly like the handwritten original. Check out the video to learn more! | Thomas Jefferson's Monticello
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Discover the truth about polygraph tests and how nervousness can affect the results. The video explores the possibility of false positives and negatives, and reveals the preferred outcome in the polygraph world. Have you ever taken a polygraph test? #polygraph #Investigationhomicide #Mississippicrime #truecrimepodcast | Investigation: Homicide
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