History: Photo of neurologist Duchenne de Boulogne electrocuting a man's face in order to study facial muscles. France, 1862. [902x1248]

http://i.imgur.com/8N2UsVX.jpg via /r/HistoryPorn https://www.reddit.com/r/HistoryPorn/comments/53bknl/photo_of_neurologist_duchenne_de_boulogne/?utm_source=ifttt