Lux vs Orsk

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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.

In English, "lux" is used as both the singular and plural form.The word is derived from the Latin word for "light", lux.

Source: Wikipedia

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Orsk (Russian: Орск, Kazakh: Жаманқала, romanized: Jamanqala) is the second largest city in Orenburg Oblast, Russia, located on the steppe about 100 kilometers (62 mi) southeast of the southern tip of the Ural Mountains. The city straddles the Ural River.

Since this river is considered a boundary between Europe and Asia, Orsk can be said to lie in two continents. Population: 239,800 (2010 Census); 250,963 (2002 Census); 270,711 (1989 Census).. It lies adjacent to the Kazakhstan–Russia border.

Source: Wikipedia