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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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| Population | 438 |
Polish orthography is the system of writing the Polish language. The language is written using the Polish alphabet, which derives from the Latin alphabet, but includes some additional letters with diacritics.: 6 The orthography is mostly phonetic, or rather phonemic—the written letters (or combinations of them) correspond in a consistent manner to the sounds, or rather the phonemes, of spoken Polish.
Rome (Italian and Latin: Roma [ˈroːma] (listen)) is the capital city of Italy. It is also the...
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