S11E13 The Solo Oscillation The Big Bang Theory
calendar_today 2007. Chuck Lorre. Bill Prady.
people Johnny Galecki. Jim Parsons. Kaley Cuoco. Simon Helberg.
When Sheldon kicks Amy out to work solo, she and Leonard bond during a series of science experiments. Also, Bert the geologist replaces Wolowitz in the band Footprints on the Moon, and Sheldon finds Penny a surprising source of scientific inspiration.