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  • 1
    Electronic Resource
    Electronic Resource
    Sub-surface Temperatures on the Moon (1959)
    [s.l.] : Nature Publishing Group
    Nature 183 (1959), S. 1316-1317 
    Details
    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 ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/1831316a0
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  • 2
    Electronic Resource
    Electronic Resource
    Nature of the Surface of the Moon (1950)
    [s.l.] : Nature Publishing Group
    Nature 166 (1950), S. 1026-1026 
    Details
    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 : ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/1661026a0
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  • 3
    Electronic Resource
    Electronic Resource
    Production of Electron Pairs (1941)
    [s.l.] : Nature Publishing Group
    Nature 148 (1941), S. 86-86 
    Details
    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
    URL: http://dx.doi.org/10.1038/148086b0
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  • 4
    Electronic Resource
    Electronic Resource
    On Bremsstrahlung (1937)
    [s.l.] : Nature Publishing Group
    Nature 140 (1937), S. 108-109 
    Details
    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 ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/140108b0
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  • 5
    Electronic Resource
    Electronic Resource
    Production of Electron Pairs (1936)
    [s.l.] : Nature Publishing Group
    Nature 137 (1936), S. 781-782 
    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 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 ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/137781b0
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  • 6
    Electronic Resource
    Electronic Resource
    Angular Distribution of Electron Pairs (1938)
    [s.l.] : Nature Publishing Group
    Nature 142 (1938), S. 573-573 
    Details
    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 ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/142573a0
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  • 7
    Electronic Resource
    Electronic Resource
    Earliest known proboscidean from early Eocene of north-west Africa (1984)
    [s.l.] : Nature Publishing Group
    Nature 308 (1984), S. 543-544 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The proboscidean remains are of an animal not exceeding a height of about 1 m, with a proportionally large head, and with graviportal limbs as in modern elephants. The skull is characterized by its considerable height, the presence of a conspicuous transversal frontomaxillary bulge, and an ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/308543a0
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  • 8
    Electronic Resource
    Electronic Resource
    African marsupials—vicariance or dispersion? (1984)
    [s.l.] : Nature Publishing Group
    Nature 312 (1984), S. 379-379 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] UNTIL recently the marsupials were not recorded in Africa, but two recent discoveries in the Lower Eocene and in Lower Oligocene of North Africa have demonstrated the presence of this group of mammals on the continent. Their phy-logeny and palaeobiogeography must, therefore, be reconstructed. The ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/312379a0
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  • 9
    Electronic Resource
    Electronic Resource
    Structure and evolution of the Himalaya–Tibet orogenic belt (1984)
    [s.l.] : Nature Publishing Group
    Nature 307 (1984), S. 17-22 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The 1981 French–Chinese expedition to Tibet focused on the Lhasa block, extending earlier coverage 400 km north of the Tsangpo suture. The Lhasa block stood between 10 and 15° N latitude over most of the Upper Cretaceous and Eocene and, if Gondwanian in origin, had detached from Gondwana ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/307017a0
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  • 10
    Electronic Resource
    Electronic Resource
    Digestive clues (1990)
    [s.l.] : Nature Publishing Group
    Nature 347 (1990), S. 628-628 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] WHEN palaeontologists or archaeologists discover a rich microvertebrate fauna, they are so concerned with its biochrono-logical and palaeoenvironmental infor-mation content that they forget to ask questions about the origin of these small vertebrates' assemblages, the causes of their death and ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/347628a0
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