Left: Spot the real mathematician. Me with David Krumholtz, who played the mathematician "Charlie" in the hit television crime series NUMB3RS.
Right: A tale of two doctors. Me with Omar Sharif, who played Doctor Zhivago in the David Lean film of the same name.
Racing Purdue University's high-performance go-carts in Indianapolis in 2010, with writer Steven Levy of Wired
magazine, broadcaster Moira Gunn of TechNation, and journalist Shankar Vedantam of the Washington Post.
Page last updated: March 25, 2011.