Boy, it's nice to sleep in a bed
with GRAVITY again.
The Big Bang Theory Season 6, Episode 5
...for this university's
six-loop quantum GRAVITY calculations.
The Big Bang Theory Season 6, Episode 9
Yeah... and the craziest part
is, because there's no GRAVITY,
The Big Bang Theory Season 5, Episode 18
No, there isn't. Only loop quantum GRAVITY
calculates the entropy of black holes.
The Big Bang Theory Season 2, Episode 2
Ah, GRAVITY--
thou art a heartless bitch.
The Big Bang Theory Season 12, Episode 24