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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.
The City and Borough of Juneau ( JOO-noh; Tlingit: Dzánti K'ihéeni [ˈtsántʰì kʼìˈhíːnì]; Russian:...
Limassol (; Greek: Λεμεσός, romanized: Lemesós [lemeˈsos]; Turkish: Limasol or Leymosun) is a...
Lomé is the capital and largest city of Togo. It has an urban population of 837,437 while there...