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The lux (symbol: lx) is the SI derived unit of illuminance, measuring luminous flux per unit area. It is equal to one lumen per square metre. In photometry, this is used as a measure of the intensity, as perceived by the human eye, of light that hits or passes through a surface. It is analogous to the radiometric unit watt per square metre, but with the power at each wavelength weighted according to the luminosity function, a standardized model of human visual brightness perception.
Târgu Cărbunești | |
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Târgu Cărbunești is a town in Gorj County, Oltenia, Romania with a population of 7,897 (as of 2011). It lies in the south-eastern part of the county and administers ten villages: Blahnița de Jos, Cărbunești-Sat, Cojani, Crețești, Curteana, Floreșteni, Măceșu, Pojogeni, Rogojeni and Ștefănești.
Santiago de Cali (Spanish pronunciation: [sanˈtjaɣo ðe ˈkali]), or Cali, is the capital of the...
Gateshead () is a large town in Tyne and Wear, England, on the southern bank of the River Tyne...
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