
in the Earth's
SURFACE.
The Big Bang Theory Season 7, Episode 3

...on a SURFACE located
at the farthest reaches of our cosmos.
The Big Bang Theory Season 6, Episode 5

...given the SURFACE area of this car
is about 60,000 square centimeters...
The Big Bang Theory Season 8, Episode 19

...with silicone RTV
to provide a better mounting SURFACE?
The Big Bang Theory Season 2, Episode 18

...as the SURFACE of
an n-dimensional superfluid.
The Big Bang Theory Season 8, Episode 23