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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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Lyss is a municipality in the Seeland administrative district in the canton of Bern in Switzerland.
Macau ( (listen); 澳門, Cantonese: [ōu.mǔːn]; Portuguese: [mɐˈkaw]), also spelled Macao and...
Cobalt is a chemical element with the symbol Co and atomic number 27. Like nickel, cobalt is...
Novokuznetsk (Russian: Новокузнецк, IPA: [nəvəkʊzˈnʲɛt͡sk]; literally: "new smith's")...