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

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

They're training dogs
to operate the CENTRIFUGE...
The Big Bang Theory Season 1, Episode 11

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