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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.
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Dubá (German: Dauba) is a town in the Liberec Region of the Czech Republic. It has a population of around 1,700.
Glarus (German: [ˈɡlaːrʊs] (listen); Alemannic German: Glaris; French: Glaris; Italian: Glarona;...
Fukuoka (福岡市, Fukuoka-shi, pronounced [ɸɯ̥kɯokaꜜɕi]) is the capital city of Fukuoka Prefecture,...
Riga City Council (Latvian: Rīgas dome) is the government of the city of Riga, the capital of...