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
The average cork speed
is 25 miles PER hour.
The Big Bang Theory Season 10, Episode 6
Eighteen parts PER million.
The Big Bang Theory Season 8, Episode 9
Four-point-one-eight-five-five times 10
to the seventh ergs PER calorie.
The Big Bang Theory Season 1, Episode 13