ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] A PULSE sounding apparatus, specially designed for the study of the lower ionosphere and capable of detecting reflexions the voltage coefficient of which exceeds 5 X 10~6, has been maintained in operation near Christchurch, New Zealand (43 S.), since early 1955. Transmissions are made at a fixed ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/181753a0
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