Abstract
APROPOS our letter in NATURE of October 2, p. 586, it has been pointed out to us by Prof. E. V. Appleton and Dr. F. W. Chapman that though the curves delineating the variations of μ2 with N and 1/f2 are quite correct, they cannot, however, be regarded as showing the relation between K and N, or 1/f2. In fact μ2 can be identified with K only when υ = 0. In the general case, for a conducting medium, . Thus, though μ2 can take up values both greater and less than unity, as depicted in Figs. 1 and 2 of our letter, K cannot do so because can only have values equal to or less than unity.
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MITRA, S., ROY, K. Anomalous Dielectric Constant of Artificial Ionosphere. Nature 140, 1066 (1937). https://doi.org/10.1038/1401066b0
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DOI: https://doi.org/10.1038/1401066b0
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