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...and sometimes "column abundance", is dominated by the high concentrations of ozone in the [[stratospheric]] [[ozone layer]]. [[File:Dobson, Josiah - Uni ...ic ozone therefore would form a 3 mm layer of pure gas at the surface of the Earth if its temperature and pressure conformed to ^STP. [[Fi ...

...[price]] in money units divided by the wage (in money units) of a man-hour of labour. ==Other units of value== ...

{{short description|Production of a voltage difference across an electrical conductor}} ...et on Electric Currents|author = [[Edwin Hall]]|journal = American Journal of Mathematics|volume = 2|year = 1879|pages = 287–92|url = http://www.stenomus ...

...puted as 123,456, but is known to be accurate only to within a few hundred units, is better stated as "about 123,500". ...epresentation with a fixed number of significant digits. In a [[sequence]] of calculations, these rounding errors generally accumulate, and in certain "i ...

{{about|the number {{pi}}|the Greek letter|Pi (letter)|other uses of pi, π, and Π|Pi (disambiguation)}} The number '''{{pi}}''' is a [[mathematical constant]], the [[ratio]] of a [[circle]]'s [[circumference]] to its [[diameter]], commonly approximated ...