"The Cooper-Nowitzki Theorem" episode of The Big Bang Theory ends with Leonard having a bad dream of Sheldon procreating by splitting in two after consuming too much pad Thai.
Leonard Bernstein | Leonard Compagno | Leonard Cohen | Leonard Nimoy | Sugar Ray Leonard | Elmore Leonard | Leonard Wood | Douglas Hofstadter | Leonard Slatkin | Leonard Rose | Leonard Woolf | Leonard French | Leonard Feather | Fort Leonard Wood | Leonard | Nicolas Léonard Sadi Carnot | Leonard of Noblac | Leonard Adleman | Leonard Woolley | Leonard P. Guarente | Leonard Cheshire | Fort Leonard Wood, Missouri | St Leonard | Sheldon Leonard | Leonard Rossiter | Leonard M. Miller School of Medicine | Jacques Léonard | Fort Leonard Wood (military base) | Steve Leonard | Leonard Trelawny Hobhouse |
From 2007 to 2010 she has appeared in episodes of the CBS TV series The Big Bang Theory as Leslie Winkle, a scientist friend of Leonard Hofstadter
In the sitcom The Big Bang Theory, in Season 1 Episode 9, Leonard Hofstadter cited this joke with slight variation (as "spherical chickens in a vacuum").