of 4.6 yoctometers
PER femtosecond.
The Big Bang Theory Season 5, Episode 18
And the policeman says, "Did you know
you were going 85 miles PER hour?"
The Big Bang Theory Season 10, Episode 21
"Koo" from Koothrappali
and "PER" from CooPER.
The Big Bang Theory Season 9, Episode 12
That's 4.9 Penny Blossoms PER hour.
The Big Bang Theory Season 2, Episode 18
- -equals mass times
9.8 meters PER second PER second.
The Big Bang Theory Season 3, Episode 10