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The lux (symbol: lx) is the SI derived unit of illuminance, measuring luminous flux per unit...
Peterborough ( (listen)) is a cathedral city in Cambridgeshire, England, with a population of...
Tucson (; Spanish: Tucsón; O'odham: Cuk-Ṣon; Navajo: Tó Oostsʼąʼ) is a city in and the county...