For physicists, a jiffy is just how long irradiate takes to take trip a street of one femtometre, i m sorry is a millionth of a millionth that a millimetre. That means that there are around three hundreds thousand billion billion jiffys in a second. A jiffy also has an electric meaning. It is the size of a single cycle of alternate current. In the UK’s 50Hz system, a jiffy is hence one-fiftieth of a second.
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