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  • 1955-1959  (4)
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Material
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Auroral Frequency Lines (1959)
    [s.l.] : Nature Publishing Group
    Nature 184 (1959), S. 263-263 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The difficulties seem, however, to be least if only the frequency-lines over a limited part of the Earth are to be determined, if the observational material is restricted to a fairly small period in time, and especially if the net of observations is dense and all the observers are using the same ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/184263a0
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    The Kiruna Geophysical Observatory, Sweden (1957)
    [s.l.] : Nature Publishing Group
    Nature 180 (1957), S. 828-830 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] AT a ceremony on July 2 marking the formal opening of the new Kiruna Geophysical Observatory in northern Sweden, the Royal Swedish Academy of Science accepted from the contractors the new central observatory building and the ionospheric laboratory. Representing a decade of planning and work, this ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/180828a0
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Observations of Intense Ionization of Long Duration below 50 km. Altitude after some Strong Solar Flares (1959)
    [s.l.] : Nature Publishing Group
    Nature 183 (1959), S. 1179-1180 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The total non-deviative ionospheric absorption of 27-6 Mc./s. radio waves is being measured at the Observatory on a routine basis by means of a so-called 'riometer' (relative ionospheric opacity meter) designed by C. G. Little3 at the Geophysical Institute, College, Alaska. The riometer is a ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/1831179a0
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    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Auroral Isochasms (1959)
    [s.l.] : Nature Publishing Group
    Nature 183 (1959), S. 1478-1479 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Such projections have been calculated by Hult-qvist2, taking into account up to the fifth term of the spherical harmonic development for epoch 1945. Four such projections on the northern hemisphere are drawn as solid curves in Fig. 1. The projections are ovals with the longest diameter ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/1831478a0
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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