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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.
Shawinigan is a city located on the Saint-Maurice River in the Mauricie area in Quebec, Canada....
The Atlantic Ocean (informally The Pond) is the second-largest of the world's oceans, with an...
Miaoli City (Wade–Giles: Miao²-li⁴; Hakka PFS: Mèu-li̍t-sṳ; Hokkien POJ: Biâu-le̍k-chhī or...