ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] IN August 1933, at the Pic du Midi, we photographed the spectrum of the night sky simultaneously at the horizon and at the zenith. On each of the four spectrograms so obtained, we noticed that the Vegard-Kaplan bands of molecular nitrogen weaken at the zenith and that new radiations can be ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/142755a0
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