For physicists, a jiffy is how long light takes to travel a distance of one femtometre, which is a millionth of a millionth of a millimetre. That means that there are about three hundred thousand billion billion jiffys in a second. A jiffy also has an electrical meaning.
How long is a jiffy? - BBC Science Focus Magazine
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MATH FACTS: A 'jiffy' is an actual unit of time for 1/100th of a second.
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From Wikipedia, the free encyclopedia. Jiffy can be an informal term for any unspecified short period, as in "I will be back in a jiffy". From this it has acquired a number of more precise applications as the name of multiple units of measurement, each used to express or measure very brief durations of time.
Jiffy (time) - Wikipedia
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Yes, Jiffy Corn Muffin Mix can be used to make cornbread. Jiffy does not make a separate cornbread mix. Some may say that there is a difference because corn muffin mix contains sugar and cornbread shouldn't, but that seems to be a matter of personal preference.
Is corn meal and corn muffin mix the same? - AskingLot.com
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