He's an engineer
and I'm an EXPERIMENTAL physicist.
The Big Bang Theory Season 4, Episode 7
Leonard grew up to be
an EXPERIMENTAL physicist.
The Big Bang Theory Season 1, Episode 16
A small payload support structure for
a European science EXPERIMENTAL package...
The Big Bang Theory Season 1, Episode 12
And they're all hopped up
on EXPERIMENTAL steroids.
The Big Bang Theory Season 2, Episode 16
Um, I am what's called
an EXPERIMENTAL physicist.
The Big Bang Theory Season 6, Episode 18