
What would a THEORETICAL physicist
understand about an experiment anyway?
The Big Bang Theory Season 10, Episode 4

Maybe we can find
another THEORETICAL physicist to help us.
The Big Bang Theory Season 10, Episode 15

She thought if I failed at THEORETICAL physics
that I should have a trade to fall back on.
The Big Bang Theory Season 2, Episode 10

Not just for THEORETICAL physics,
but for astrophysics.
The Big Bang Theory Season 8, Episode 6

Of course not.
I'm a THEORETICAL physicist.
The Big Bang Theory Season 2, Episode 23