David Saltzberg has a bachelor’s in physics from Princeton University and a Ph.D. in physics from the University of Chicago. He worked on the Cyclotron, at CERN, and the European nuclear research center. The man also teaches a full course load at UCLA. But, if you’re a fan of The Big Bang Theory, odds are there’s a completely different way you should know him. Saltzberg is the show’s fact checker for everything from the equations seen on Sheldon’s white boards to the science-speak heard week after week. Wired has an interview with Saltzberg that fans of the show, or anyone interested in how a scientist got involved and works with the show, should give it a look.