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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.
Porto Seguro (Portuguese pronunciation: [ˈpoʁtu siˈɡuɾu]) is a city located in the far south of...
Olsztyn (UK: OL-shtin, Polish: [ˈɔlʂtɨn] (listen); German: Allenstein [ˈʔalənʃtaɪn] (listen);...
Caboolture is a town and suburb in Moreton Bay Region, Queensland, Australia. In the 2016...