When Leonard and Howard find out that Sheldon worked with the military behind their backs, they are furious and ask Kripke to help them, much to Sheldon's annoyance. Mean ...

Bert asks Sheldon to collaborate on a project on dark matter where Bert requires some math expertise. Sheldon neither wants to admit to anyone that he is interested in Be ...

Sheldon and Amy are in the midst of wedding planning, Sheldon wanting to ensure that everything is to his specification. He's narrowed the actual wedding day to one of ei ...