Ljubljana vs Lux

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Ljubljana (UK: lewb-LYAH-nə luub-lee-AH-nə, US: lewb-lee-AH-nə lee-OO-; Slovene: [ljuˈbljàːna] (listen), locally also [luˈblàːna]; also known by other historical names) is the capital and largest city of Slovenia. It has been the cultural, educational, economic, political and administrative centre. During antiquity, a Roman city called Emona stood in the area. Ljubljana itself was first mentioned in the first half of the 12th century. Situated at the middle of a trade route between the northern Adriatic Sea and the Danube region, it was the historical capital of Carniola, one of the Slovene-inhabited parts of the Habsburg Monarchy.

It was under Habsburg rule from the Middle Ages until the dissolution of the Austro-Hungarian Empire in 1918. After World War II, Ljubljana became the capital of the Socialist Republic of Slovenia, part of the Socialist Federal Republic of Yugoslavia. It retained this status until Slovenia became independent in 1991 and Ljubljana became the capital of the newly formed state.

Source: Wikipedia

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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