Instead of a titanium CENTRIFUGE,
my parents bought me...
The Big Bang Theory Season 1, Episode 16
the whir of the CENTRIFUGE,
The Big Bang Theory Season 5, Episode 16
...for when they need dogs to operate
the CENTRIFUGE for blind scientists.
The Big Bang Theory Season 1, Episode 11
I got a look at the CENTRIFUGE
The Big Bang Theory Season 5, Episode 18
The rate of spinning
for the central axis CENTRIFUGE
The Big Bang Theory Season 10, Episode 20