I'm not seeing anyone
using LIQUID helium vortices like this.
The Big Bang Theory Season 9, Episode 16
It's like a waterfall
of LIQUID gold.
The Big Bang Theory Season 5, Episode 1
Floating in a warm pool
of LIQUID
The Big Bang Theory Season 12, Episode 19
[LIQUID SLOSHING]
Breaking Bad Season 2, Episode 4
The correct answer is, "When covered by
LIQUID sufficient to reduce the coefficient...
The Big Bang Theory Season 2, Episode 5