You see, instead of
using LIQUID helium...
The Big Bang Theory Season 11, Episode 8
I'm not seeing anyone
using LIQUID helium vortices like this.
The Big Bang Theory Season 9, Episode 16
They make up a non-Newtonian fluid
which is LIQUID...
The Big Bang Theory Season 2, Episode 3
The world's most boring LIQUID
and the world's most boring vegetable,
The Big Bang Theory Season 10, Episode 13
The correct answer is, "When covered by
LIQUID sufficient to reduce the coefficient...
The Big Bang Theory Season 2, Episode 5