or under the icy SURFACE
of Europa?
The Big Bang Theory Season 11, Episode 10
that's just a doodle of
a hyperelliptic Riemann SURFACE.
The Big Bang Theory Season 7, Episode 20
...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
If there is life beneath
the SURFACE of these planets,
The Big Bang Theory Season 11, Episode 10