To the METRIC system.
The Big Bang Theory Season 4, Episode 7
200 METRIC tons
of fuel will
The Big Bang Theory Season 5, Episode 24
That Americans can't handle
the METRIC system?
The Big Bang Theory Season 7, Episode 6
That Americans can't handle
the METRIC system?
The Big Bang Theory Season 7, Episode 10
He started America on a path
to the METRIC system but then just gave up.
The Big Bang Theory Season 4, Episode 7