Thomas Humphrey is a physicist, teacher, exhibit developer, artist, and guitar player with a Ph.D. in elementary particle physics from Caltech. His research was done at Fermilab. Thomas joined the Exploratorium staff in 1973 and worked closely for many years with Frank Oppenheimer, the museum’s founder and director. An Exploratorium Senior Scientist, Thomas has been principal investigator on dozens of projects involving exhibit development and teaching in the areas of seeing, listening, physics, feedback, mathematics, and navigation. He’s also been involved with exhibits developed through our artist-in-residence program, and he’s tested innovative exhibit techniques.