
Accelerating at an initial rate
of 32 feet PER second.
The Big Bang Theory Season 1, Episode 2

of 4.6 yoctometers
PER femtosecond.
The Big Bang Theory Season 5, Episode 18

Ooh. Well, l haven't had any training,
PER se.
Breaking Bad Season 4, Episode 9

On a typical day,
you average 1 9 cars PER hour.
Breaking Bad Season 4, Episode 2

from space
at 500 miles PER hour,
The Big Bang Theory Season 5, Episode 23