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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.
Val-d'Or | |
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Population | 32500 |
Val-d'Or (, French: [val dɔʁ], locally [val dɑɔ̯ʁ]; "Golden Valley" or "Valley of Gold") is a city in Quebec, Canada with a population of 32,491 inhabitants according to the Canada 2016 Census.
Pfitsch (German pronunciation: [pfɪtʃ]; Italian: Val di Vizze [val di ˈvittse]) is a valley and...
Trancoso (Portuguese pronunciation: [tɾɐ̃ˈkozu] ) is a city and a municipality in Portugal. The...
Maizuru (舞鶴市, Maizuru-shi) is a city in Kyoto Prefecture, Japan, on an inlet of the Sea of Japan....