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  • Nature Publishing Group  (6)
  • Chapmann & Hall  (1)
  • 1
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    Chapmann & Hall
    In:  London, Chapmann & Hall, vol. 558, no. XVI:, pp. 1-14, (ISBN 3-9808493-1-7)
    Publication Date: 1983
    Keywords: Textbook of geophysics ; Rock mechanics ; Fracture ; Elasticity ; Rheology
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  • 2
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 142 (1938), S. 573-573 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A NUMBER of experiments have been made on the angular distribution of electron-positron pairs liberated by a beam of γ-rays, but the results, where it is possible to compare, them, do not seem to be in agreement. It is therefore of interest to see what the theory predicts, and in the following ...
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  • 3
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 137 (1936), S. 781-782 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN a recent paper1 we discussed the creation of positive-negative electron pairs by a beam of γ-rays traversing lead, with atomic number Z = 82. Results have since been obtained with Z = 50 and Z = 65 for γ-rays of energy hv = 3mc2. It is of interest to compare these with ...
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  • 4
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 183 (1959), S. 1316-1317 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Information about the thermal conductivity near the surface is obtained from optical and radio microwave observations of the variation of the surface temperature during an eclipse or throughout a lunation. These yield a value of (Kpc)~112, where K, p and c are the thermal conductivity, density and ...
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  • 5
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 148 (1941), S. 86-86 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SOME time ago we described a method1 for calculating rigorously (neglecting screening) the cross-section for production of electron-positron pairs in the field of a nucleus by a beam of γ-rays. This method also gave the energy distribution of the electrons or positrons. Results ...
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 140 (1937), S. 108-109 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE method previously used1 to calculate the cross-section for pair production by a beam of y-rays has been extended to deal with transitions of a Dirac electron between two states of positive energy in a Coulomb field. It is thus theoretically possible to obtain an exact ...
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  • 7
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 166 (1950), S. 1026-1026 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] We made similar calculations in connexion with the microwave observations of Piddington and Minnett3, but have taken the matter a good deal further. In the accompanying graph, the dots show Pettit s4 observations of the 1939 eclipse, while curve I is calculated for a solid with (Kc)-1/2 = 1,030 : ...
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