How about a LIQUID cooler?
A little aquarium pump here.
The Big Bang Theory Season 1, Episode 2
[LIQUID SLOSHING]
Breaking Bad Season 2, Episode 4
You see, instead of
using LIQUID helium...
The Big Bang Theory Season 11, Episode 8
my original theory that space time
was like a super-cooled LIQUID,
The Big Bang Theory Season 9, Episode 18
It's like a waterfall
of LIQUID gold.
The Big Bang Theory Season 5, Episode 1