...she's unjustifiably arrogant
about loop quantum GRAVITY...
The Big Bang Theory Season 2, Episode 2
I don't know. In space you couldn't even
toss me a pen, and that was in zero GRAVITY.
The Big Bang Theory Season 8, Episode 3
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
Well, as long as it has a healthy GRAVITY
and all its moons, I'll be happy.
The Big Bang Theory Season 9, Episode 12