Degree Rankine (°R)
Degree Rankine (°R) :
A traditional unit of absolute temperature. 1 degree Rankine represents the same temperature difference as 1 degree Fahrenheit, but the zero point of the scale is set at absolute zero. This means the Rankine temperature is 459.67o plus the Fahrenheit temperature. 1 degree Rankine is equal to exactly 5/9 kelvin. The unit is named for the British physicist and engineer William Rankine (1820-1872)
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