No, he's a THEORETICAL physicist
at CalTech.
The Big Bang Theory Season 9, Episode 8
Now to tell you about
the Theoretical Physics Department...
The Big Bang Theory Season 2, Episode 6
She's a neurobiologist, and
I'm a THEORETICAL physicist.
The Big Bang Theory Season 7, Episode 21
- Well, yeah.
- I'm a THEORETICAL physicist.
The Big Bang Theory Season 1, Episode 15
...because he said
it was a THEORETICAL nut conflict.
The Big Bang Theory Season 8, Episode 21