Hi there, it seems like you are using an outdated browser. Vi highly recommend that you are using the latest version of your browser. Tekna.no supports Edge, Firefox, Google Chrome, Safari and Opera, among others. If you are not able to update your browser to the latest version, other browsers are available here: http://browsehappy.com
Go directly to content
nordlys

Kristian Birkeland

He was a physicist and made his mark in two quite different areas. He developed the method for extracting nitrogen from the air, which formed the basis for artificial fertilizers. Although this had a significant impact on food production, for Birkeland, it was a side project that could finance his true passion, research in electromagnetism and atmospheric phenomena such as the Northern Lights (Aurora Borealis).