Sheldon attempts to help Penny understand physics to impress Leonard, while Howard becomes jealous when Bernadette takes an interest in Leonard's research.
Episode rating
Cast of episode
57
34
5
2
1
- Sheldon Cooper
- Penny
- Howard Wolowitz
- Bernadette Rostenkowski
- Leonard Hofstadter
- Raj Koothrappali
- Debbie Wolowitz