
Privacy
Lux | |
---|---|
State | |
Country | |
Capital | |
Population | 0 |
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.
Adelaide ( (listen) AD-ə-layd) is the capital city of the state of South Australia, and the...
Siegen (German pronunciation: [ˈziːɡn̩] (listen)) is a city in Germany, in the south Westphalian...
Ketchikan ( KETCH-ih-kan; Tlingit: Kichx̱áan) is a city in and the borough seat of the Ketchikan...