![](http://www.alamy.com/thumbs/6/5D3E7DDD-A807-46D6-A2BB-B1B30D32E219/P755KM.jpg)
. English: Portrait of Kristian Birkeland, Norwegian scientist and industrialist Français: Portrait de Kristian Birkeland, physicien et industriel norvégien 1900 12 Asta Norregaard Kristian Birkeland 1900
Size: 1794px × 2786px
Photo credit: © The Picture Art Collection / Alamy / Afripics
License: Licensed
Model Released: No
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