Moment (time)
Encyclopedia
A moment is a medieval unit of time
equal to 1.5 minutes or 1/40 of an hour. In modern English
it usually refers to "a short period of time" but doesn't specifically say how short.
, 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.
Unit of time
Units of measurement for time have historically been based on the movement of the Sun and the Moon . Shorter intervals were measured by physiological periods such as drawing breath, winking or the heartbeat.Units of time consisting of a number of years include the lustrum and the olympiad...
equal to 1.5 minutes or 1/40 of an hour. In modern English
Modern English
Modern English is the form of the English language spoken since the Great Vowel Shift in England, completed in roughly 1550.Despite some differences in vocabulary, texts from the early 17th century, such as the works of William Shakespeare and the King James Bible, are considered to be in Modern...
it usually refers to "a short period of time" but doesn't specifically say how short.
Rega
In the Hebrew calendarHebrew calendar
The Hebrew calendar , or Jewish calendar, is a lunisolar calendar used today predominantly for Jewish religious observances. It determines the dates for Jewish holidays and the appropriate public reading of Torah portions, yahrzeits , and daily Psalm reading, among many ceremonial uses...
, 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.