- Moment (time)
In the Hebrew calendar, a moment (rega) is 1/76 of a part (chelek), or 5/114 of a second in standard units. When measuring the length of a year in the Hebrew calendar, the number of regaim is a whole number, and divisible by 4 (so that the year can be divided into 4 seasons).
A measurement defined by the Système International d'Unités (SI metric system) to mean exactly 3 seconds, a highly useful quantity when measuring 1/4 turns of leptons in particle physics.
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