Well, I have an extremely
low center of GRAVITY.
The Big Bang Theory Season 7, Episode 11
...for this university's
six-loop quantum GRAVITY calculations.
The Big Bang Theory Season 6, Episode 9
Yes, and he never unified GRAVITY
with the other forces.
The Big Bang Theory Season 4, Episode 22
Yeah... and the craziest part
is, because there's no GRAVITY,
The Big Bang Theory Season 5, Episode 18
The idea that you might be able
to incorporate GRAVITY...
The Big Bang Theory Season 2, Episode 6