Convert jiffy (G. N. Lewis) to quarter (American football)
Selected category: time.
Definition and details for jiffy (G. N. Lewis):
Jiffy was defined by Gilbert Newton Lewis (1875-1946). He proposed a unit of time called the jiffy which was equal to the time it takes light to travel one centimeter. It has since been redefined for different measurements depending on the field of study.
Definition and details for quarter (American football):
Quarter in American football is used as a unit of time equal to 15 minutes.