...as the SURFACE of
an n-dimensional superfluid.
The Big Bang Theory Season 8, Episode 23
Then a laser will map
the reflective SURFACE...
The Big Bang Theory Season 6, Episode 5
...on a SURFACE located
at the farthest reaches of our cosmos.
The Big Bang Theory Season 6, Episode 5
...with silicone RTV
to provide a better mounting SURFACE?
The Big Bang Theory Season 2, Episode 18
Erase the hard drives, grab the tapes, wipe
our fingerprints off every SURFACE and run.
The Big Bang Theory Season 2, Episode 8