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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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The Fez (Turkish: fes), also called Tarboosh (Arabic: طربوش, romanized: ṭarbūš, derived from Persian: فینه, romanized: sarpuš, lit. 'cap'), is a felt headdress in the shape of a short cylindrical peakless hat, usually red, and sometimes with a tassel attached to the top.
Nanchang is the capital and largest city of Jiangxi Province, People's Republic of China. As of...
Saarbrücken (, also US: , German: [zaːɐ̯ˈbʁʏkn̩] (listen); French: Sarrebruck [saʁbʁyk]; Rhine...
Lübben (Spreewald) (Lower Sorbian: Lubin (Błota)) is a town of 14,000 people, capital of the...