Big Bang Theory Quote
Howard: (a cricket chirps) What was that?
Sheldon: Hold on.
(Looks at watch while cricket chirps)
Sheldon: That is a snowy tree cricket.
Howard: How can you tell?
Sheldon: In 1890, Emile Dolbear determined that there was a fixed relationship between the number of chirps per minute of the snowy tree cricket and the ambient temperature; a precise relationship that is not present with ordinary field crickets.
Raj: And how do you know what the ambient room temperature is?
Sheldon: According to our agreement, I have unilateral control over the thermostat since the sweaty night in '06.
Quote from S03E02 - The Jiminy Conjecture