It was an EXPERIMENT designed
by this guy named Schrödinger.
The Big Bang Theory Season 2, Episode 2
an EXPERIMENT that
I believe will increase
The Big Bang Theory Season 5, Episode 23
So are you and Leonard working
on an EXPERIMENT together?
The Big Bang Theory Season 2, Episode 11
...to be asking another man's girlfriend
to his EXPERIMENT...
The Big Bang Theory Season 3, Episode 10
Look, I know this EXPERIMENT is
a big step outside of your comfort zone.
The Big Bang Theory Season 10, Episode 4