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In astronomy, a lunar fortnight is half a lunar synodic month, which is equivalent to the mean period between a full moon and a new moon (and vice versa). This is equal to 14.07 days. [3] [4] It gives rise to a lunar fortnightly tidal constituent (see: Long-period tides).
The Jiffy is the amount of time light takes to travel one femtometre (about the diameter of a nucleon). The Planck time is the time that light takes to travel one Planck length. The TU (for time unit) is a unit of time defined as 1024 μs for use in engineering. The svedberg is a time unit used for sedimentation rates (usually
Early modern period – The chronological limits of this period are open to debate. It emerges from the Late Middle Ages (c. 1500), demarcated by historians as beginning with the fall of Constantinople in 1453, in forms such as the Italian Renaissance in the West, the Ming dynasty in the East, and the rise of the Aztecs in the New World.
Pahar/pehar/peher is derived from Sanskrit word prahar which is an ancient unit of time in India. The word pahar/peher has the same root as the Hindustani word pehra (meaning "to stand guard") and pehredar (literally "guard/watchman"). [2] It literally means a "watch" (i.e. period of guard-duty).
The orbital period (also revolution period) is the amount of time a given astronomical object takes to complete one orbit around another object. In astronomy , it usually applies to planets or asteroids orbiting the Sun , moons orbiting planets, exoplanets orbiting other stars , or binary stars .
In electronics, a jiffy is the period of an alternating current power cycle, [5] ... (number of jiffies elapsed since 1 January 1980 00:00 Greenwich Mean Time ...
When viewed over a one-year period, the mean longitude is very nearly a linear function of Terrestrial Time. To find the length of the tropical year, the mean longitude is differentiated, to give the angular speed of the Sun as a function of Terrestrial Time, and this angular speed is used to compute how long it would take for the Sun to move ...
Period (periodic table), a horizontal row of the periodic table "Period-" or "per-iod-", in some chemical compounds, "per" refers to oxidation state, and "iod" refers to the compound containing iodine; Unit of time or timeframe Period (geology), a subdivision of geologic time; Period (physics), the duration of time of one cycle in a repeating event