
the whir of the CENTRIFUGE,
The Big Bang Theory Season 5, Episode 16

I got a look at the CENTRIFUGE
The Big Bang Theory Season 5, Episode 18

On my 12th birthday,
I really wanted a titanium CENTRIFUGE...
The Big Bang Theory Season 1, Episode 16

...for when they need dogs to operate
the CENTRIFUGE for blind scientists.
The Big Bang Theory Season 1, Episode 11

Instead of a titanium CENTRIFUGE,
my parents bought me...
The Big Bang Theory Season 1, Episode 16