President Barack Obama interacts with Nathan Copeland, who controls a robotic arm with his mind Thursday in the exhibition hall of the White House Frontiers Conference at the University of Pittsburgh. Copeland has a brain implant that allows him to control the remote arm and experience the sensation of touching through it. (Photo by Michael Henninger/Post-Gazette) #Pittsburgh #PGH #412 #technology #PittsburghTechnology #Pitt #H2P FrontiersConference #WHFrontiers #robots #Obama #PGPhotos