ISSN:
1476-4687
Quelle:
Nature Archives 1869 - 2009
Thema:
Biologie
,
Chemie und Pharmazie
,
Medizin
,
Allgemeine Naturwissenschaft
,
Physik
Notizen:
[Auszug] It has been demonstrated, however, that the night-time ionization at heights around the upper boundary of the Earth-ionosphere waveguide, for VLF waves, may contain an appreciable contribution from the stronger celestial X-ray sources2'3, and, indeed, long-term observations confirm the influence of ...
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1038/2281080a0
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