The First World War: Hydro was taking no chances in the event of hostilities and set up anti-aircraft guns to protect its factories. 1914: Guerra e decisões difíceis @(margin ? "h2" : "h3")>
Notodden. A town takes shape. The year is 1911. Notodden will soon be home to 10,000 people but is not given town status for another two years. 1908: É claro que os trabalhadores devem ter casas @(margin ? "h2" : "h3")>
Rjukan in 1916. The change from rural community to industrial society was rapid. 1906: O próximo grande passo @(margin ? "h2" : "h3")>
King Haakon arrives with Crown Prince Olav on this arm, and is welcomed to Norway by the prime minister, Christian Michelsen. Norsk Hydro was founded the following week. 1905: Um pouco mais sobre a Noruega e mais @(margin ? "h2" : "h3")>
Hydro was established by Swedish and French capital, but later Prime Minister Gunnar Knudsen (left) was a key player, here with general director Sam Eyde. 1905: Um novo dia de trabalho – 2 de dezembro de 1905 @(margin ? "h2" : "h3")>
Factory buildings at Notodden (1907). Further construction work was carried out at Notodden when it became clear in the autumn of 1905 that the time was not yet right for the major industrial development of Rjukan. 1904: Um projeto de calibre @(margin ? "h2" : "h3")>
The electric cannon Birkeland used in his demonstrations 1903: Dias explosivos de inverno @(margin ? "h2" : "h3")>