Putanges-le-Lac | |
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Putanges-le-Lac is a commune in the department of Orne, northwestern France. The municipality was established on 1 January 2016 by merger of the former communes of Chênedouit, La Forêt-Auvray, La Fresnaye-au-Sauvage, Ménil-Jean, Putanges-Pont-Écrepin (the seat), Rabodanges, Les Rotours, Saint-Aubert-sur-Orne and Sainte-Croix-sur-Orne.
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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.
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