File:Birkeland terrella spiral nebula.jpg
Birkeland_terrella_spiral_nebula.jpg (480 × 468 pixels, file size: 34 KB, MIME type: image/jpeg)
Nonfiction: Kristian Birkeland's magnetized terrella. In this experiment, he noted two spirals which he considered may be similar to that of spiral nebulae.
In the News
December 9, 1901: In a high-profile APTO court case, aurora researcher and Gnomon algorithm theorist Kristian Birkeland uses his experimental Terrella to prove that rogue mathematician Anarchimedes planned and attempted to execute crimes against the ionosphere.
August 8, 1575: Physician, physicist, and crime-fighter William Gilbert uses his experimental Terrella to stop alleged math criminal Anarchimedes from sabotaging the construction of Tycho Brahe's Uraniborg observatory.
Fiction cross-reference
Nonfiction cross-reference
- Kristian Birkeland (nonfiction)
- Mathematician (nonfiction)
- Mathematics (nonfiction)
- Terrella (nonfiction)
External links:
- Terrella @ Wikipedia
Attribution: By Uploaded by Jan Tresman; original image by Kristian Birkeland - Sourced from the book, The Norwegian Aurora Polaris Expedition 1902-1903, Volume 1: On the Cause of Magnetic Storms and The Origin of Terrestrial Magnetism, Section 2. Chapter VI: p.667 (published in 1913), By en:Kristian Birkeland (1867-1917) also on the Web at http://www.catastrophism.com/texts/birkeland/, Public Domain, https://commons.wikimedia.org/w/index.php?curid=28050795
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