Eš vs Lux

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Eš (German: Esche) is a village and municipality (obec) in Pelhřimov District in the Vysočina Region of the Czech Republic. The municipality covers an area of 4.07 square kilometres (1.

57 sq mi), and has a population of 50 (as at 2007). Eš lies approximately 16 kilometres (10 mi) west of Pelhřimov, 43 km (27 mi) west of Jihlava, and 83 km (52 mi) south-east of Prague.

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