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  • 1
    Electronic Resource
    Electronic Resource
    Interaction of Radio Waves (1934)
    [s.l.] : Nature Publishing Group
    Nature 133 (1934), S. 218-218 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE phenomenon recently reported by Tellegen1 whereby the new broadcasting station at Luxembourg appears to interact with that portion of the carrier wave of the Beromunster station which is received in Holland, can be explained by taking into account the effect of such a ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/133218a0
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  • 2
    Electronic Resource
    Electronic Resource
    Sporadic E -Region Ionization, ‘Spread F’, and the Twinkling of Radio Stars (1959)
    [s.l.] : Nature Publishing Group
    Nature 183 (1959), S. 1382-1383 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A clue to the origin of these phenomena at non-auroral latitudes may lie in the fact that they appear to have one common feature: they occur most frequently or most intensely at times when the ionization of the relevant matrix region (E or F) is moving upwards under the influence of the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/1831382a0
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  • 3
    Electronic Resource
    Electronic Resource
    The Theory of Magnetic Storms and Auroras (1951)
    [s.l.] : Nature Publishing Group
    Nature 167 (1951), S. 984-985 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Prof. Alfvn considers that Chapman and Ferraros work cannot be thorough since it apparently takes no account of plasma oscillations. It is unfortunate that these authors long series of papers on magnetic storm theory have not been more widely read, possibly because of their mathematical difficulty ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/167984b0
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  • 4
    Electronic Resource
    Electronic Resource
    The Theory of Magnetic Storms and Auroras (1951)
    [s.l.] : Nature Publishing Group
    Nature 167 (1951), S. 92-94 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] OF the many theories of magnetic storms advanced during the past fifty years, there survives only that of Chapman and Ferraro1. This theory postulates a neutral ionized stream of particles, expelled from the sun with velocities (u) of order 108 cm. per second, in accordance with the well-known fact ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/167092a0
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  • 5
    Electronic Resource
    Electronic Resource
    Atmospheric Pressure and the Ionisation of the Kennelly-Heaviside Layer (1934)
    [s.l.] : Nature Publishing Group
    Nature 133 (1934), S. 294-294 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] EVIDENCE of a connexion between meteorological conditions in the troposphere, and the behaviour of radio waves reflected from the Kennelly-Heaviside layer has been noted by Colwell1 in America and by Ranzi2 in Italy. Again, Stagg3 has discovered a ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/133294b0
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  • 6
    Electronic Resource
    Electronic Resource
    Interaction of Radio Waves (1935)
    [s.l.] : Nature Publishing Group
    Nature 135 (1935), S. 585-585 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] PRIOR to the observation of the interaction of radio waves1, the study of the propagation of such waves through the atmosphere was concerned only with the effect of the ionosphere on them. The converse effect, namely, the influence of electric waves on the ionosphere, has already ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/135585a0
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  • 7
    Electronic Resource
    Electronic Resource
    The Lorentz Polarization Term and the Earth's Magnetic Field in the Ionosphere (1938)
    [s.l.] : Nature Publishing Group
    Nature 141 (1938), S. 159-161 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] FOR some years, there has been doubt concerning the value of the accelerating force acting on an electron in the ionosphere under the influence of an electric wave. In 1929, Hartree1 gave reasons for believing that to the field of the wave must be added a resultant field due to ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/141159b0
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  • 8
    Electronic Resource
    Electronic Resource
    Ionospheric Disturbances, Fadeouts and Bright Hydrogen Solar Eruptions (1937)
    [s.l.] : Nature Publishing Group
    Nature 140 (1937), S. 603-605 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] F0R some months we have been recording daily o*o the equivalent heights and reflection coefficients of the F2 region of the ionosphere, for radio frequencies near to the critical penetration frequency of the region. Under these conditions, the recorded quantities are exceptionally sensitive to ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/140603a0
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  • 9
    Electronic Resource
    Electronic Resource
    The Lorentz ‘Polarization’ Correction and the Behaviour of Radio Echoes from the Ionosphere at Frequencies near the Gyro-frequency (1938)
    [s.l.] : Nature Publishing Group
    Nature 142 (1938), S. 1159-1160 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN a recent communication1, we presented certain experimental observations of the reflection of medium radio waves from the ionosphere. These results were interpreted as indicating that the Lorentz ‘polarization’ correction was zero in the ionosphere. This conclusion has since ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/1421159a0
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  • 10
    Electronic Resource
    Electronic Resource
    Measurement of the Heaviside Layer Heights. (1930)
    [s.l.] : Nature Publishing Group
    Nature 126 (1930), S. 568-568 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IF the carrier wave of a wireless transmitter he increasing steadily in frequency, then a given receiving station will in general pick up two waves differing in frequency. One of these waves will have reached the receiver by the shortest path along the ground, while the other will arrive after ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/126568b0
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