
That's 4.9 Penny Blossoms PER hour.
The Big Bang Theory Season 2, Episode 18

Based on the number of chirps
PER minute and the temPERature...
The Big Bang Theory Season 3, Episode 2

Now, if you assume 15 tampons PER cycle
in a 28-day cycle...
The Big Bang Theory Season 1, Episode 4

He was so busy figuring out
how many parts PER million of urine...
The Big Bang Theory Season 8, Episode 9

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