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In astrophysics and quantum physics a jiffy is, as defined by Edward R. Harrison, [13] the time it takes for light to travel one fermi, which is approximately the size of a nucleon. One fermi is 10 −15 m, so a jiffy is about 3 × 10 −24 s. It has also more informally been defined as "one light-foot", which is equal to approximately one ...
This template should be used when there is uncertainty about the timeframe over which an article assertion is valid (lack of precise language).Typically, these might be assertions which do not make that timeframe clear or which characterize it in relation to the timeframe of the addition of the assertion to an article (the relative timeframe not being clear to a reader in the future).
The amount of time light takes to travel one Planck length. quectosecond: 10 −30 s: One nonillionth of a second. rontosecond: 10 −27 s: One octillionth of a second. yoctosecond: 10 −24 s: One septillionth of a second. jiffy (physics) 3 × 10 −24 s: The amount of time light takes to travel one fermi (about the size of a nucleon) in a ...
These uses made the table with years in one column and places of events (kingdoms) on the top the dominant visual structure of time. [7] By the 17th century, historians had started to claim that chronology and geography were the two sources of precise information which bring order to the chaos of history.
Also in Arabic, by adding the common dual suffix to the word for "week", أسبوع, the form أسبوعين (usbu′ayn), meaning "two weeks", is formed. Slavic languages: in Czech the terms čtrnáctidenní and dvoutýdenní have the same meaning as "fortnight". [6] In Ukrainian, the term два тижні is used in relation to "biweekly ...
William J. Friedman (1993) contrasted two theories of the sense of time: [6] [7] [8] The strength model of time memory. This posits a memory trace that persists over time, by which one might judge the age of a memory (and therefore how long ago the event remembered occurred) from the strength of the trace. This conflicts with the fact that ...
Use after a statement of a time period in an article that is so vague or ambiguous you do not understand which period is being referred to. Template parameters [Edit template data] This template prefers inline formatting of parameters. Parameter Description Type Status Month and year date The month and year you added this template to the article, use the full month name and four digit year, e ...
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