Lux vs Cherkasy

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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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Cherkasy (Ukrainian: Черка́си, pronounced [t͡ʃɛrˈkɑsɪ]), also known as Cherkassy (Russian: Черка́ссы [tɕɪrˈkasɨ]), is a city in central Ukraine. Cherkasy is the capital of Cherkasy Oblast (province), as well as the administrative center of surrounding Cherkasky Raion (district) within the oblast. The city itself is designated as a city of oblast significance and does not belong to the raion. Population: 274,762 (2020 est.)Cherkasy is the cultural, educational and industrial center of Cherkasy Oblast and Central Economical Region of Ukraine.

Cherkasy has been known since the 13th century and played a great role in the history of Ukraine. The city was the center of Cossacks, citizens took part in Khmelnychchyna and Koliyivschyna (cossacks' and peasants' rebellions). The city is located on the right bank of Dnieper River (specifically at the Kremenchuk Reservoir), about 200 km (124 mi) south of the nation's capital, Kyiv. Cherkasy is divided into 2 boroughs (raions): Sosnivskiy (with Orshanets village) and Pridniprovskiy. In June 2011, the city celebrated its 725th anniversary.

Source: Wikipedia