Rjukan is a small town (3,100 inhabitants) located in a narrow valley by the Måna River, in the municipality of Tinn, in the Telemark county. The history of Rjukan started at the beginning of the 20th century, when the enormous potential of using Norway’s waterfalls to generate electricity was discovered. It was then that hydroelectric power plants began to appear, such as the one in Tyssedal or in Rjukan. Simultaneously with the Rjukan power plant, huge industrial plants producing fertilizers were built, all in one complex, called Vemork. Rjukan quickly turned from a small agricultural village into a thriving industrial city with up to 12,000 inhabitants. The fertilizer factory, operating…