People gather in front of the town hall, in sunlight which is reflected by giant mirrors (L, not pictured) erected on the mountainside, in the Norwegian industrial town of Rjukan, some 150 km west of Oslo October 18, 2013. Rjukan, located in the bottom of a valley between steep mountains in Telemark County, is cut off from direct sunlight for five to six months a year. Now, three giant mirrors mounted on a nearby mountainside will reflect winter sunlight into the valley, said local media. REUTERS/Tore Meek/NTB Scanpix (NORWAY – Tags: ENVIRONMENT SCIENCE TECHNOLOGY SOCIETY)
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