and come home with
sacks full of CARBON
The Big Bang Theory Season 5, Episode 12
...while I build CARBON atoms.
The Big Bang Theory Season 3, Episode 14
Did you give any consideration
to CARBON nanotubes?
The Big Bang Theory Season 1, Episode 12
Carbon.
The Big Bang Theory Season 12, Episode 23
Not lima beans. Carbon atoms.
The Big Bang Theory Season 3, Episode 14