Entangled
by Cyril Simon Wedlund, BIRA-IASB, Brussels, Belgium
South auroral oval and polar rain simulated in laboratory using the Planeterrella experiment (J. Lilensten et al., UJF/CNRS, Grenoble, France).
http://planeterrella.obs.ujf-grenoble.fr/English/index.php
The Planeterrella was redesigned after K. Birkeland's original terrella experiments, which in the 1900s helped him unveil the mechanisms at the origin of polar aurorae.
A magnetised aluminium sphere is placed in a vacuum chamber. An electric current is then established between the sphere (anode) and the electrode at the top of the figure (cathode) producing emissions in the visible and UV ranges.
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- Exact location (5.7316 E, 45.1943 N)
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2471 × 3693 px;
image/jpeg; 2.9 MB
Camera:
Nikon D200
Taken on 28
May
2010
Submitted on 10 March 2011
Licence
Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported (CC BY-NC-SA 3.0)
Credit
Cyril Simon Wedlund (distributed via imaggeo.egu.eu)
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