I really miss GRAVITY.
The Big Bang Theory Season 6, Episode 3
...she's unjustifiably arrogant
about loop quantum GRAVITY...
The Big Bang Theory Season 2, Episode 2
Loop quantum GRAVITY
is the future of physics.
The Big Bang Theory Season 2, Episode 2
What about loop quantum GRAVITY?
The Big Bang Theory Season 7, Episode 20
I got to experience
zero GRAVITY.
The Big Bang Theory Season 5, Episode 18