1934: German dictator Adolf Hitler (1889-1945) giving the Nazi salute from his car whilst at the Nazi Party Congress. (Photo by Hulton Archive/Getty Images)
This week, an image is worth a thousand words. You be the judge.
The views expressed are those of the author(s) and are not necessarily those of Scientific American.
Susana Martinez-Conde and Stephen L. Macknik are laboratory directors at SUNY Downstate Medical Center. They serve on Scientific American Mind's board of advisers and are authors of Sleights of Mind: What the Neuroscience of Magic Reveals about Our Everyday Deceptions, with Sandra Blakeslee, now in paperback (http://sleightsofmind.com). Their forthcoming book, Champions of Illusion, will be published by Scientific American/Farrar, Straus and Giroux.