![logo](/img/xlogo_small.webp.pagespeed.ic.Rif_4bzYCq.webp)
Privacy
Clarksville | |
---|---|
State | Indiana |
Country | United States of America |
Capital | |
Population | 21308 |
Postcode | 47129 |
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.
Shenzhen (; Chinese: 深圳; Mandarin pronunciation: [ʂə́n.ʈʂə̂n] (listen)) is a major sub-provincial...
Derby ( (listen) DAR-bee) is a city and unitary authority area in Derbyshire, England. It lies on...
Angoulême (French pronunciation: [ɑ̃ɡulɛːm] (listen); Poitevin-Saintongeais: Engoulaeme;...